Firecrawl MCP Server
Firecrawl MCP サーバー
Web スクレイピング機能のためにFirecrawlと統合する Model Context Protocol (MCP) サーバー実装。
最初の実装にご協力いただいた@vrknetha 、 @cawstudiosに深く感謝いたします。
特徴
スクレイピング、クロール、検索、抽出、詳細な調査、バッチスクレイピングのサポート
JSレンダリングによるWebスクレイピング
URLの検出とクロール
コンテンツ抽出によるウェブ検索
指数バックオフによる自動再試行
レート制限を組み込んだ効率的なバッチ処理
クラウドAPIのクレジット使用状況監視
包括的なログシステム
クラウドおよびセルフホスト型 FireCrawl インスタンスのサポート
モバイル/デスクトップビューポートのサポート
タグの包含/除外によるスマートなコンテンツフィルタリング
Related MCP server: OneSearch MCP Server
インストール
npxで実行
env FIRECRAWL_API_KEY=fc-YOUR_API_KEY npx -y firecrawl-mcp手動インストール
npm install -g firecrawl-mcpカーソル上で実行
カーソルの設定 🖥️ 注: カーソルバージョン 0.45.6 以上が必要です
Cursor で FireCrawl MCP を構成するには:
カーソル設定を開く
機能 > MCPサーバーへ移動
「+新しいMCPサーバーを追加」をクリックします
以下を入力してください:
名前: 「firecrawl-mcp」(またはお好みの名前)
タイプ:「コマンド」
コマンド:
env FIRECRAWL_API_KEY=your-api-key npx -y firecrawl-mcp
Windows を使用していて問題が発生している場合は、
cmd /c "set FIRECRAWL_API_KEY=your-api-key && npx -y firecrawl-mcp"を試してください。
your-api-key FireCrawl API キーに置き換えます。
追加後、MCPサーバーリストを更新して新しいツールを確認してください。Composer Agentは適切な場合にFireCrawl MCPを自動的に使用しますが、Webスクレイピングのニーズを明示的に指定することで、その使用をリクエストすることもできます。Command+L(Mac)でComposerにアクセスし、送信ボタンの横にある「Agent」を選択して、クエリを入力してください。
ウィンドサーフィンで走る
これを./codeium/windsurf/model_config.jsonに追加します:
{
"mcpServers": {
"mcp-server-firecrawl": {
"command": "npx",
"args": ["-y", "firecrawl-mcp"],
"env": {
"FIRECRAWL_API_KEY": "YOUR_API_KEY_HERE"
}
}
}
}Smithery (レガシー) 経由でのインストール
Smithery経由で Claude Desktop 用の FireCrawl を自動的にインストールするには:
npx -y @smithery/cli install @mendableai/mcp-server-firecrawl --client claude構成
環境変数
クラウドAPIに必須
FIRECRAWL_API_KEY: FireCrawl APIキークラウド API を使用する場合に必須 (デフォルト)
FIRECRAWL_API_URLでセルフホストインスタンスを使用する場合はオプション
FIRECRAWL_API_URL(オプション): セルフホストインスタンスのカスタム API エンドポイント例:
https://firecrawl.your-domain.com指定しない場合はクラウド API が使用されます (API キーが必要です)
オプション構成
再試行構成
FIRECRAWL_RETRY_MAX_ATTEMPTS: 再試行の最大回数(デフォルト: 3)FIRECRAWL_RETRY_INITIAL_DELAY: 最初の再試行までの初期遅延(ミリ秒)(デフォルト: 1000)FIRECRAWL_RETRY_MAX_DELAY: 再試行間の最大遅延時間(ミリ秒)(デフォルト: 10000)FIRECRAWL_RETRY_BACKOFF_FACTOR: 指数バックオフ乗数(デフォルト: 2)
クレジット使用状況の監視
FIRECRAWL_CREDIT_WARNING_THRESHOLD: クレジット使用量の警告しきい値(デフォルト: 1000)FIRECRAWL_CREDIT_CRITICAL_THRESHOLD: クレジット使用量のクリティカルしきい値(デフォルト: 100)
設定例
カスタム再試行とクレジット監視を使用したクラウド API の使用の場合:
# Required for cloud API
export FIRECRAWL_API_KEY=your-api-key
# Optional retry configuration
export FIRECRAWL_RETRY_MAX_ATTEMPTS=5 # Increase max retry attempts
export FIRECRAWL_RETRY_INITIAL_DELAY=2000 # Start with 2s delay
export FIRECRAWL_RETRY_MAX_DELAY=30000 # Maximum 30s delay
export FIRECRAWL_RETRY_BACKOFF_FACTOR=3 # More aggressive backoff
# Optional credit monitoring
export FIRECRAWL_CREDIT_WARNING_THRESHOLD=2000 # Warning at 2000 credits
export FIRECRAWL_CREDIT_CRITICAL_THRESHOLD=500 # Critical at 500 creditsセルフホストインスタンスの場合:
# Required for self-hosted
export FIRECRAWL_API_URL=https://firecrawl.your-domain.com
# Optional authentication for self-hosted
export FIRECRAWL_API_KEY=your-api-key # If your instance requires auth
# Custom retry configuration
export FIRECRAWL_RETRY_MAX_ATTEMPTS=10
export FIRECRAWL_RETRY_INITIAL_DELAY=500 # Start with faster retriesClaude Desktopでの使用
これをclaude_desktop_config.jsonに追加します:
{
"mcpServers": {
"mcp-server-firecrawl": {
"command": "npx",
"args": ["-y", "firecrawl-mcp"],
"env": {
"FIRECRAWL_API_KEY": "YOUR_API_KEY_HERE",
"FIRECRAWL_RETRY_MAX_ATTEMPTS": "5",
"FIRECRAWL_RETRY_INITIAL_DELAY": "2000",
"FIRECRAWL_RETRY_MAX_DELAY": "30000",
"FIRECRAWL_RETRY_BACKOFF_FACTOR": "3",
"FIRECRAWL_CREDIT_WARNING_THRESHOLD": "2000",
"FIRECRAWL_CREDIT_CRITICAL_THRESHOLD": "500"
}
}
}
}システム構成
サーバーには、環境変数で設定可能なパラメータがいくつか含まれています。設定されていない場合のデフォルト値は以下のとおりです。
const CONFIG = {
retry: {
maxAttempts: 3, // Number of retry attempts for rate-limited requests
initialDelay: 1000, // Initial delay before first retry (in milliseconds)
maxDelay: 10000, // Maximum delay between retries (in milliseconds)
backoffFactor: 2, // Multiplier for exponential backoff
},
credit: {
warningThreshold: 1000, // Warn when credit usage reaches this level
criticalThreshold: 100, // Critical alert when credit usage reaches this level
},
};これらの構成は以下を制御します。
再試行動作
レート制限により失敗したリクエストを自動的に再試行します
API の過負荷を回避するために指数バックオフを使用します
例: デフォルト設定では、次の場合に再試行が試行されます。
1回目の再試行: 1秒の遅延
2回目の再試行: 2秒遅延
3 回目の再試行: 4 秒の遅延 (maxDelay で上限)
クレジット使用状況の監視
クラウド API の使用における API クレジットの消費を追跡します
指定されたしきい値で警告を発する
予期せぬサービス中断を防ぐのに役立ちます
例: デフォルト設定の場合:
残り1000クレジットの警告
残り100クレジットで重大な警告
レート制限とバッチ処理
サーバーは、FireCrawl に組み込まれたレート制限およびバッチ処理機能を活用します。
指数バックオフによる自動レート制限処理
バッチ操作のための効率的な並列処理
スマートなリクエストキューイングとスロットリング
一時的なエラーの自動再試行
利用可能なツール
1. スクレイプツール( firecrawl_scrape )
高度なオプションを使用して、単一の URL からコンテンツをスクレイピングします。
{
"name": "firecrawl_scrape",
"arguments": {
"url": "https://example.com",
"formats": ["markdown"],
"onlyMainContent": true,
"waitFor": 1000,
"timeout": 30000,
"mobile": false,
"includeTags": ["article", "main"],
"excludeTags": ["nav", "footer"],
"skipTlsVerification": false
}
}2. バッチスクレイプツール( firecrawl_batch_scrape )
組み込みのレート制限と並列処理により、複数の URL を効率的にスクレイピングします。
{
"name": "firecrawl_batch_scrape",
"arguments": {
"urls": ["https://example1.com", "https://example2.com"],
"options": {
"formats": ["markdown"],
"onlyMainContent": true
}
}
}応答にはステータス チェックの操作 ID が含まれます。
{
"content": [
{
"type": "text",
"text": "Batch operation queued with ID: batch_1. Use firecrawl_check_batch_status to check progress."
}
],
"isError": false
}3. バッチステータスを確認する( firecrawl_check_batch_status )
バッチ操作のステータスを確認します。
{
"name": "firecrawl_check_batch_status",
"arguments": {
"id": "batch_1"
}
}4. 検索ツール( firecrawl_search )
Web を検索し、オプションで検索結果からコンテンツを抽出します。
{
"name": "firecrawl_search",
"arguments": {
"query": "your search query",
"limit": 5,
"lang": "en",
"country": "us",
"scrapeOptions": {
"formats": ["markdown"],
"onlyMainContent": true
}
}
}5. クロールツール( firecrawl_crawl )
高度なオプションを使用して非同期クロールを開始します。
{
"name": "firecrawl_crawl",
"arguments": {
"url": "https://example.com",
"maxDepth": 2,
"limit": 100,
"allowExternalLinks": false,
"deduplicateSimilarURLs": true
}
}6. 抽出ツール( firecrawl_extract )
LLM機能を使用してWebページから構造化情報を抽出します。クラウドAIとセルフホスト型LLM抽出の両方をサポートします。
{
"name": "firecrawl_extract",
"arguments": {
"urls": ["https://example.com/page1", "https://example.com/page2"],
"prompt": "Extract product information including name, price, and description",
"systemPrompt": "You are a helpful assistant that extracts product information",
"schema": {
"type": "object",
"properties": {
"name": { "type": "string" },
"price": { "type": "number" },
"description": { "type": "string" }
},
"required": ["name", "price"]
},
"allowExternalLinks": false,
"enableWebSearch": false,
"includeSubdomains": false
}
}応答例:
{
"content": [
{
"type": "text",
"text": {
"name": "Example Product",
"price": 99.99,
"description": "This is an example product description"
}
}
],
"isError": false
}抽出ツールのオプション:
urls: 情報を抽出するURLの配列prompt: LLM抽出のカスタムプロンプトsystemPrompt: LLMをガイドするシステムプロンプトschema: 構造化データ抽出用のJSONスキーマallowExternalLinks: 外部リンクからの抽出を許可するenableWebSearch: 追加のコンテキストのWeb検索を有効にするincludeSubdomains: 抽出にサブドメインを含める
セルフホストインスタンスを使用する場合、抽出には設定されたLLMが使用されます。クラウドAPIの場合は、FireCrawlのマネージドLLMサービスが使用されます。
ログシステム
サーバーには包括的なログ機能が含まれています:
運用状況と進捗
パフォーマンス指標
クレジット使用状況の監視
レート制限の追跡
エラー条件
ログメッセージの例:
[INFO] FireCrawl MCP Server initialized successfully
[INFO] Starting scrape for URL: https://example.com
[INFO] Batch operation queued with ID: batch_1
[WARNING] Credit usage has reached warning threshold
[ERROR] Rate limit exceeded, retrying in 2s...エラー処理
サーバーは堅牢なエラー処理を提供します。
一時的なエラーの自動再試行
バックオフによるレート制限の処理
詳細なエラーメッセージ
クレジット使用に関する警告
ネットワークの回復力
エラー応答の例:
{
"content": [
{
"type": "text",
"text": "Error: Rate limit exceeded. Retrying in 2 seconds..."
}
],
"isError": true
}発達
# Install dependencies
npm install
# Build
npm run build
# Run tests
npm test貢献
リポジトリをフォークする
機能ブランチを作成する
テストを実行:
npm testプルリクエストを送信する
ライセンス
MITライセンス - 詳細はLICENSEファイルを参照
Available Tools
9 toolsfirecrawl_batch_scrapeC
Scrape multiple URLs in batch mode. Returns a job ID that can be used to check status.
| Name | Required | Description | Default |
|---|---|---|---|
| urls | Yes | List of URLs to scrape | |
| options | No |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions that the tool returns a job ID for status checking, which is useful context about the asynchronous nature. However, it lacks details on permissions, rate limits, error handling, or what the scraping entails (e.g., whether it's destructive or read-only). More behavioral traits are needed for a mutation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with two sentences that front-load the main action and outcome. There's no wasted text, but it could be slightly more informative without losing efficiency. It effectively communicates the core functionality in a structured manner.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity (batch scraping with multiple parameters, no output schema, and no annotations), the description is incomplete. It doesn't cover parameter details, behavioral aspects like rate limits or errors, or how to interpret results beyond the job ID. For a tool with undocumented parameters and no structured output, more context is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 50% (only 'urls' has a description), so the description must compensate. It implies 'urls' parameter usage but doesn't explain 'options' or its nested properties. The description adds minimal value beyond the schema, as it doesn't clarify parameter meanings or usage, leaving gaps for undocumented parameters.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Scrape multiple URLs in batch mode.' It specifies the verb (scrape) and resource (URLs) with the batch mode distinction. However, it doesn't explicitly differentiate from sibling tools like 'firecrawl_scrape' or 'firecrawl_crawl,' which likely handle single URLs or different scraping modes.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It mentions batch mode but doesn't specify scenarios where batch is preferred over single URL scraping or other siblings like 'firecrawl_search' or 'firecrawl_deep_research.' No exclusions or prerequisites are stated.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
firecrawl_check_batch_statusB
Check the status of a batch scraping job.
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | Batch job ID to check |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool checks status but doesn't describe what the status response includes (e.g., progress, errors, completion), whether it's idempotent, or any rate limits. For a status-checking tool with zero annotation coverage, this leaves significant gaps in understanding its behavior beyond the basic purpose.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that directly states the tool's purpose without unnecessary words. It's front-loaded with the core action and resource, making it easy to parse. Every part of the sentence earns its place by conveying essential information, achieving optimal conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's low complexity (single parameter, no output schema, no annotations), the description is minimally adequate. It covers the basic purpose but lacks details on behavioral aspects like response format or error handling. Without annotations or an output schema, the description should do more to compensate, but it meets the minimum for a simple status-check tool, leaving room for improvement in completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema description coverage is 100%, with the single parameter 'id' clearly documented as 'Batch job ID to check.' The description doesn't add any additional meaning beyond this, such as format examples or source context. Given the high schema coverage, a baseline score of 3 is appropriate, as the schema adequately handles parameter semantics without extra description value.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('check the status') and resource ('batch scraping job'), making the purpose immediately understandable. It distinguishes this tool from other status-checking siblings like 'firecrawl_check_crawl_status' by specifying it's for batch jobs rather than crawl jobs. However, it doesn't explicitly contrast with all possible alternatives, keeping it from a perfect score.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context by specifying 'batch scraping job,' suggesting this should be used after initiating a batch job. However, it doesn't explicitly state when to use this versus alternatives like 'firecrawl_check_crawl_status' or provide guidance on prerequisites (e.g., needing a job ID from 'firecrawl_batch_scrape'). The usage is clear but lacks explicit alternatives or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
firecrawl_check_crawl_statusB
Check the status of a crawl job.
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | Crawl job ID to check |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. While 'check' implies a read-only operation, the description doesn't address important behavioral aspects like authentication requirements, rate limits, what the status response looks like, whether it's real-time or cached, or error conditions. For a status-checking tool with zero annotation coverage, this leaves significant gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence that gets straight to the point with zero wasted words. It's appropriately sized for a simple status-checking tool and front-loads the essential information without unnecessary elaboration.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple single-parameter status check tool with no output schema, the description is minimally adequate. It tells what the tool does but lacks important context about the status response format, error handling, and differentiation from sibling tools. With no annotations to provide behavioral context, the description should do more to compensate, but it meets the bare minimum for understanding the tool's basic function.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with the single parameter 'id' clearly documented as 'Crawl job ID to check' in the schema. The description doesn't add any additional parameter information beyond what the schema already provides, which is acceptable given the high schema coverage. The baseline of 3 is appropriate when the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('check') and resource ('status of a crawl job'), making the purpose immediately understandable. It doesn't explicitly distinguish from sibling tools like 'firecrawl_check_batch_status' or 'firecrawl_crawl', but the verb+resource combination is specific enough for basic understanding.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. With siblings like 'firecrawl_check_batch_status' and 'firecrawl_crawl' that likely involve similar status-checking or crawling operations, there's no indication of when this specific 'crawl job status' check is appropriate versus other status-related tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
firecrawl_crawlB
Start an asynchronous crawl of multiple pages from a starting URL. Supports depth control, path filtering, and webhook notifications.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | Starting URL for the crawl | |
| excludePaths | No | URL paths to exclude from crawling | |
| includePaths | No | Only crawl these URL paths | |
| maxDepth | No | Maximum link depth to crawl | |
| ignoreSitemap | No | Skip sitemap.xml discovery | |
| limit | No | Maximum number of pages to crawl | |
| allowBackwardLinks | No | Allow crawling links that point to parent directories | |
| allowExternalLinks | No | Allow crawling links to external domains | |
| webhook | No | ||
| deduplicateSimilarURLs | No | Remove similar URLs during crawl | |
| ignoreQueryParameters | No | Ignore query parameters when comparing URLs | |
| scrapeOptions | No | Options for scraping each page |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It mentions the tool is 'asynchronous' and supports webhook notifications, which is helpful. However, it doesn't cover critical aspects like rate limits, authentication needs, error handling, what happens if the crawl fails, or how results are returned (since there's no output schema). For a complex 12-parameter tool with no annotations, this leaves significant gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, well-structured sentence that efficiently communicates the core purpose and key features. Every word earns its place—there's no redundancy or unnecessary elaboration.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (12 parameters, no annotations, no output schema), the description is incomplete. It doesn't explain what the crawl produces (e.g., URLs, content, status), how to retrieve results, error conditions, or performance implications. While concise, it lacks the depth needed for such a multifaceted tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is high at 92%, so the schema already documents most parameters well. The description adds some context by mentioning 'depth control' (relates to maxDepth), 'path filtering' (relates to includePaths/excludePaths), and 'webhook notifications' (relates to webhook), but doesn't provide additional syntax or format details beyond what the schema offers. Baseline 3 is appropriate given the strong schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('start an asynchronous crawl'), the resource ('multiple pages from a starting URL'), and distinguishes it from siblings by specifying it's for crawling (vs. scraping, extracting, mapping, etc.). It's specific about being asynchronous and handling multiple pages.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage context through features like 'depth control, path filtering, and webhook notifications,' suggesting when this tool might be appropriate. However, it doesn't explicitly state when to use this vs. alternatives like firecrawl_scrape or firecrawl_map, nor does it mention prerequisites or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
firecrawl_deep_researchC
Conduct deep research on a query using web crawling, search, and AI analysis.
| Name | Required | Description | Default |
|---|---|---|---|
| query | Yes | The query to research | |
| maxDepth | No | Maximum depth of research iterations (1-10) | |
| timeLimit | No | Time limit in seconds (30-300) | |
| maxUrls | No | Maximum number of URLs to analyze (1-1000) |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions the methods (web crawling, search, AI analysis) but doesn't describe key behavioral traits: what 'deep research' entails operationally, whether it's resource-intensive, time-consuming, or has rate limits, what the output format looks like, or any error conditions. For a complex tool with no annotation coverage, this leaves significant gaps in understanding how it behaves.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence: 'Conduct deep research on a query using web crawling, search, and AI analysis.' It's front-loaded with the core purpose and uses no unnecessary words. Every part of the sentence contributes to understanding the tool's function.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (involving multiple methods like crawling, search, and AI analysis), no annotations, no output schema, and 4 parameters, the description is incomplete. It doesn't explain what 'deep research' outputs, how results are structured, or any behavioral nuances. The agent lacks sufficient context to use this tool effectively compared to simpler siblings, making this inadequate for a tool of this scope.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all four parameters (query, maxDepth, timeLimit, maxUrls) with descriptions and constraints. The description adds no additional meaning about parameters beyond implying they relate to 'deep research.' It doesn't explain how parameters interact (e.g., how depth affects research) or provide usage examples. Baseline 3 is appropriate when the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Conduct deep research on a query using web crawling, search, and AI analysis.' It specifies the verb ('conduct deep research') and resource ('a query'), but doesn't explicitly differentiate it from sibling tools like firecrawl_search or firecrawl_crawl, which likely have overlapping functionality. The mention of 'deep research' with multiple methods (crawling, search, AI analysis) provides some distinction but isn't specific about how it differs from simpler search or crawl operations.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention any prerequisites, exclusions, or compare it to sibling tools like firecrawl_search or firecrawl_crawl. The agent must infer usage based on the vague 'deep research' phrasing, which could apply to many scenarios without clear boundaries.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
firecrawl_extractC
Extract structured information from web pages using LLM. Supports both cloud AI and self-hosted LLM extraction.
| Name | Required | Description | Default |
|---|---|---|---|
| urls | Yes | List of URLs to extract information from | |
| prompt | No | Prompt for the LLM extraction | |
| systemPrompt | No | System prompt for LLM extraction | |
| schema | No | JSON schema for structured data extraction | |
| allowExternalLinks | No | Allow extraction from external links | |
| enableWebSearch | No | Enable web search for additional context | |
| includeSubdomains | No | Include subdomains in extraction |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions LLM-based extraction and deployment options but lacks critical details: what permissions or authentication are needed, rate limits, whether it's read-only or modifies data, error handling, or output format. For a tool with 7 parameters and no annotations, this is a significant gap in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise (two sentences) and front-loaded with the core purpose. Every sentence adds value: the first defines the tool's function, and the second clarifies deployment options. No wasted words, though it could be more structured with bullet points for clarity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (7 parameters, no output schema, no annotations), the description is incomplete. It doesn't explain the extraction process, output format, error cases, or how it differs from siblings. For an LLM-based extraction tool with multiple parameters, more context is needed to guide effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, so parameters like 'urls,' 'prompt,' and 'schema' are well-documented in the schema itself. The description adds minimal value beyond this, only implying LLM usage and deployment modes without detailing parameter interactions or constraints. Baseline 3 is appropriate given high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Extract structured information from web pages using LLM.' It specifies the verb ('extract'), resource ('structured information from web pages'), and method ('using LLM'). However, it doesn't explicitly differentiate from sibling tools like firecrawl_scrape or firecrawl_deep_research, which likely have overlapping functionality.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides minimal usage guidance. It mentions support for 'cloud AI and self-hosted LLM extraction,' which hints at deployment options but doesn't specify when to use this tool versus alternatives like firecrawl_scrape (for raw content) or firecrawl_deep_research (for more complex analysis). No explicit when/when-not scenarios or prerequisites are provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
firecrawl_mapC
Discover URLs from a starting point. Can use both sitemap.xml and HTML link discovery.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | Starting URL for URL discovery | |
| search | No | Optional search term to filter URLs | |
| ignoreSitemap | No | Skip sitemap.xml discovery and only use HTML links | |
| sitemapOnly | No | Only use sitemap.xml for discovery, ignore HTML links | |
| includeSubdomains | No | Include URLs from subdomains in results | |
| limit | No | Maximum number of URLs to return |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It mentions discovery methods but lacks critical behavioral details: whether this is a read-only operation, potential rate limits, authentication needs, output format, or error handling. For a tool with 6 parameters and no annotations, this is inadequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise (two sentences) and front-loaded with the core purpose. Every word earns its place, with no redundant or vague language. It efficiently communicates the essential functionality without unnecessary elaboration.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 6 parameters, no annotations, and no output schema, the description is incomplete. It doesn't explain what the tool returns (e.g., list of URLs, structured data), error conditions, or performance characteristics. For a discovery tool with potential complexity, more context is needed to guide effective use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema fully documents all 6 parameters. The description adds no additional parameter semantics beyond implying discovery methods (sitemap.xml and HTML links), which aligns with parameters like ignoreSitemap and sitemapOnly. Baseline 3 is appropriate as the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Discover URLs from a starting point' with specific methods ('sitemap.xml and HTML link discovery'). It uses a clear verb ('Discover') and resource ('URLs'), but doesn't explicitly differentiate from sibling tools like firecrawl_crawl or firecrawl_search, which might have overlapping functionality.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It mentions the methods (sitemap.xml and HTML links) but doesn't specify scenarios, prerequisites, or exclusions. Given multiple sibling tools (e.g., firecrawl_crawl, firecrawl_search), this lack of comparative context is a significant gap.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
firecrawl_scrapeC
Scrape a single webpage with advanced options for content extraction. Supports various formats including markdown, HTML, and screenshots. Can execute custom actions like clicking or scrolling before scraping.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | The URL to scrape | |
| formats | No | Content formats to extract (default: ['markdown']) | |
| onlyMainContent | No | Extract only the main content, filtering out navigation, footers, etc. | |
| includeTags | No | HTML tags to specifically include in extraction | |
| excludeTags | No | HTML tags to exclude from extraction | |
| waitFor | No | Time in milliseconds to wait for dynamic content to load | |
| timeout | No | Maximum time in milliseconds to wait for the page to load | |
| actions | No | List of actions to perform before scraping | |
| extract | No | Configuration for structured data extraction | |
| mobile | No | Use mobile viewport | |
| skipTlsVerification | No | Skip TLS certificate verification | |
| removeBase64Images | No | Remove base64 encoded images from output | |
| location | No | Location settings for scraping |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden for behavioral disclosure. While it mentions 'advanced options' and capabilities like executing actions before scraping, it lacks critical behavioral details: whether this is a read-only operation, potential rate limits, authentication requirements, error handling, or what happens with dynamic content. For a complex scraping tool with 13 parameters, this is a significant gap in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is appropriately concise with two sentences that efficiently convey core functionality. The first sentence states the primary purpose, and the second adds key capabilities. There's no unnecessary repetition or fluff, though it could be slightly more structured by explicitly separating core scraping from advanced features.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a complex scraping tool with 13 parameters, no annotations, and no output schema, the description is inadequate. It doesn't explain what the tool returns (formats, structure, error cases), doesn't mention performance characteristics or limitations, and provides minimal guidance on the sophisticated parameter interactions. The agent would struggle to use this effectively without trial and error.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 13 parameters thoroughly. The description adds minimal value beyond what's in the schema - it mentions 'advanced options' and 'various formats' but doesn't provide additional semantic context about parameter interactions or usage patterns. The baseline of 3 is appropriate when the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Scrape a single webpage with advanced options for content extraction.' It specifies the verb (scrape) and resource (webpage) and mentions advanced options. However, it doesn't explicitly differentiate from sibling tools like firecrawl_crawl or firecrawl_extract, which likely handle multi-page crawling or extraction-only operations.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It mentions 'advanced options' but doesn't specify scenarios where this is preferable over simpler scraping methods or when to choose sibling tools like firecrawl_crawl for multi-page operations or firecrawl_extract for extraction-only tasks. No exclusions or prerequisites are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
firecrawl_searchA
Search and retrieve content from web pages with optional scraping. Returns SERP results by default (url, title, description) or full page content when scrapeOptions are provided.
| Name | Required | Description | Default |
|---|---|---|---|
| query | Yes | Search query string | |
| limit | No | Maximum number of results to return (default: 5) | |
| lang | No | Language code for search results (default: en) | |
| country | No | Country code for search results (default: us) | |
| tbs | No | Time-based search filter | |
| filter | No | Search filter | |
| location | No | Location settings for search | |
| scrapeOptions | No | Options for scraping search results |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It explains the dual-mode behavior (SERP vs. full content scraping) and mentions optional scraping, which is helpful. However, it lacks details about rate limits, authentication needs, error handling, or what happens when scrapeOptions are omitted versus provided - important for a web scraping tool with no annotation coverage.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is perfectly concise - two sentences that front-load the core functionality and clearly explain the dual output modes. Every word earns its place with zero redundancy or unnecessary elaboration.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a complex tool with 8 parameters, nested objects, and no output schema, the description provides adequate context about what the tool does and its dual modes. However, with no annotations and no output schema, it should ideally mention more about behavioral aspects like rate limits, authentication, or error handling to be fully complete for this level of complexity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all 8 parameters thoroughly. The description adds some value by explaining the relationship between scrapeOptions and output behavior, but doesn't provide additional semantic context beyond what's in the schema descriptions. This meets the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose with specific verbs ('search and retrieve content from web pages') and distinguishes it from siblings by specifying it returns SERP results by default or full content with scraping. It explicitly differentiates from tools like firecrawl_scrape and firecrawl_extract by focusing on search-first functionality.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context about when to use this tool (search with optional scraping) and implies alternatives by mentioning 'SERP results by default' versus 'full page content when scrapeOptions are provided'. However, it doesn't explicitly name when to use this versus siblings like firecrawl_scrape or firecrawl_extract, which would require more specific guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
9 tool updates
- First observed
firecrawl_batch_scrape - First observed
firecrawl_check_batch_status - First observed
firecrawl_check_crawl_status - First observed
firecrawl_crawl - First observed
firecrawl_deep_research - First observed
firecrawl_extract - First observed
firecrawl_map - First observed
firecrawl_scrape - First observed
firecrawl_search
TDQS
Scored across 9 tools
Most tools have distinct purposes, but there is some potential overlap between firecrawl_scrape and firecrawl_extract, as both involve extracting content from web pages. The descriptions clarify that scrape focuses on raw content extraction with advanced options, while extract uses LLM for structured information, but an agent might still confuse them. Other tools like crawl, map, search, and deep_research are clearly differentiated.
All tool names follow a consistent 'firecrawl_' prefix with snake_case and descriptive verb_noun patterns (e.g., batch_scrape, check_batch_status, crawl, deep_research). This uniformity makes the set predictable and easy to navigate, with no deviations in naming conventions across the nine tools.
With 9 tools, the count is well-scoped for a web crawling and scraping server, covering key operations like single and batch scraping, crawling, mapping, searching, and deep research. Each tool serves a specific function without redundancy, making the set comprehensive yet manageable for typical use cases.
The tool set covers the core web crawling and scraping domain effectively, including initiation, status checking, and various extraction methods. A minor gap exists in the lack of tools for managing or deleting jobs, but agents can work around this by relying on job IDs and status checks. Overall, the surface supports essential workflows without significant dead ends.
Maintenance
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