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Kagi MCP Server

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Kagi MCP-Server

Einrichtungsanweisungen

Stellen Sie vorab sicher, dass Sie Zugriff auf die Such-API haben, es sei denn, Sie verwenden nur Nicht-Such-Tools. Sie befindet sich derzeit in der geschlossenen Beta-Phase und ist auf Anfrage erhältlich. Bitte wenden Sie sich für eine Einladung an support@kagi.com.

Installieren Sie zuerst uv.

MacOS/Linux:

curl -LsSf https://astral.sh/uv/install.sh | sh

Windows:

powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"

Installation über Smithery

Alternativ können Sie Kagi für Claude Desktop über Smithery installieren:

npx -y @smithery/cli install kagimcp --client claude

Einrichtung mit OpenAI

Codex CLI

Um den Kagi MCP-Server zur codex cli hinzuzufügen, müssen Sie den folgenden Befehl verwenden:

codex mcp add kagi --env KAGI_API_KEY=<YOUR_API_KEY_HERE> -- uvx kagimcp

Dies schreibt die Konfiguration in ~/.codex/config.toml. Wenn Sie also Ihren API-Schlüssel aktualisieren/rotieren müssen, aktualisieren Sie ihn dort, bevor Sie codex erneut ausführen.

Die Codex CLI verfügt über eine eigene integrierte Suche (über das Flag --search), die jedoch standardmäßig deaktiviert ist. Um Konflikte zwischen der Suche und Kagi zu vermeiden, aktivieren Sie sie einfach nicht.

Einrichtung mit Claude

Claude Desktop

// claude_desktop_config.json
// Can find location through:
// Hamburger Menu -> File -> Settings -> Developer -> Edit Config
{
  "mcpServers": {
    "kagi": {
      "command": "uvx",
      "args": ["kagimcp"],
      "env": {
        "KAGI_API_KEY": "YOUR_API_KEY_HERE",
        "KAGI_SUMMARIZER_ENGINE": "YOUR_ENGINE_CHOICE_HERE" // Defaults to "cecil" engine if env var not present
      }
    }
  }
}

Claude Code

Fügen Sie den Kagi MCP-Server mit dem folgenden Befehl hinzu (die Einstellung der Summarizer-Engine ist optional):

claude mcp add kagi -e KAGI_API_KEY="YOUR_API_KEY_HERE" KAGI_SUMMARIZER_ENGINE="YOUR_ENGINE_CHOICE_HERE" -- uvx kagimcp

Jetzt kann Claude Code den Kagi MCP-Server verwenden. Claude Code verfügt jedoch standardmäßig über eine eigene Websuchfunktion, die mit Kagi in Konflikt stehen könnte. Sie können die Websuchfunktion von Claude in Ihrer Claude Code-Einstellungsdatei (~/.claude/settings.json) deaktivieren:

{
  "permissions": {
    "deny": [
      "WebSearch"
    ]
  }
}

Stellen Sie eine Anfrage, die die Verwendung eines Tools erfordert

z. B. "Wer war die Person des Jahres 2024 laut Time?" für die Suche oder "Fasse dieses Video zusammen: https://www.youtube.com/watch?v=jNQXAC9IVRw" für den Summarizer.

Fehlerbehebung

Führen Sie aus:

npx @modelcontextprotocol/inspector uvx kagimcp

Related MCP server: sysauto Ask MCP Server

Anweisungen für die lokale/Entwicklungs-Einrichtung

Repository klonen

git clone https://github.com/kagisearch/kagimcp.git

Abhängigkeiten installieren

Installieren Sie zuerst uv.

MacOS/Linux:

curl -LsSf https://astral.sh/uv/install.sh | sh

Windows:

powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"

Installieren Sie dann die MCP-Server-Abhängigkeiten:

cd kagimcp

# Create virtual environment and activate it
uv venv

source .venv/bin/activate # MacOS/Linux
# OR
.venv/Scripts/activate # Windows

# Install dependencies
uv sync

Einrichtung mit Claude Desktop

Verwendung des MCP CLI SDK

# `pip install mcp[cli]` if you haven't
mcp install /ABSOLUTE/PATH/TO/PARENT/FOLDER/kagimcp/src/kagimcp/server.py -v "KAGI_API_KEY=API_KEY_HERE"

Manuell

# claude_desktop_config.json
# Can find location through:
# Hamburger Menu -> File -> Settings -> Developer -> Edit Config
{
  "mcpServers": {
    "kagi": {
      "command": "uv",
      "args": [
        "--directory",
        "/ABSOLUTE/PATH/TO/PARENT/FOLDER/kagimcp",
        "run",
        "kagimcp"
      ],
      "env": {
        "KAGI_API_KEY": "YOUR_API_KEY_HERE",
        "KAGI_SUMMARIZER_ENGINE": "YOUR_ENGINE_CHOICE_HERE" // Defaults to "cecil" engine if env var not present
      }
    }
  }
}

Stellen Sie eine Anfrage, die die Verwendung eines Tools erfordert

z. B. "Wer war die Person des Jahres 2024 laut Time?" für die Suche oder "Fasse dieses Video zusammen: https://www.youtube.com/watch?v=jNQXAC9IVRw" für den Summarizer.

Fehlerbehebung

Führen Sie aus:

# If mcp cli installed (`pip install mcp[cli]`)
mcp dev /ABSOLUTE/PATH/TO/PARENT/FOLDER/kagimcp/src/kagimcp/server.py

# If not
npx @modelcontextprotocol/inspector \
      uv \
      --directory /ABSOLUTE/PATH/TO/PARENT/FOLDER/kagimcp \
      run \
      kagimcp

Greifen Sie dann auf den MCP Inspector unter http://localhost:5173 zu. Möglicherweise müssen Sie Ihren Kagi-API-Schlüssel in den Umgebungsvariablen im Inspector unter KAGI_API_KEY hinzufügen.

Erweiterte Konfiguration

  • Die Protokollierungsebene kann über die Umgebungsvariable FASTMCP_LOG_LEVEL angepasst werden (z. B. FASTMCP_LOG_LEVEL="ERROR")

  • Die Summarizer-Engine kann über die Umgebungsvariable KAGI_SUMMARIZER_ENGINE angepasst werden (z. B. KAGI_SUMMARIZER_ENGINE="daphne")

    • Erfahren Sie hier mehr über die verschiedenen Summarization-Engines

  • Es gibt möglicherweise sicherere Wege, sich mit dem MCP zu verbinden. Ein Benutzer hat einige Details hier aufgeschrieben

  • Die CLI-Option --http kann verwendet werden, um den streamfähigen HTTP-Transport zu aktivieren. Kann zusammen mit den Argumenten --port und --host verwendet werden.

Available Tools

2 tools
kagi_extractA

Extract the content of a web page as markdown using the Kagi Extract API. Use this to read the full content of a page when needed.

ParametersJSON Schema
NameRequiredDescriptionDefault
urlYesThe HTTPS URL of the page to extract content from.

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so description carries full burden. Only states core behavior without additional context like rate limits, authorization, or side effects. Adequate for a simple read operation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, no fluff, front-loaded with purpose. Every sentence earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Low complexity with one parameter and existing output schema. Description covers what it does and when to use it, but could mention potential errors or prerequisites for full completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% and describes the only parameter (url). Description adds no extra meaning beyond the schema, so baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states the action (extract content), resource (web page), output format (markdown), and API. Distinguishes from sibling tool by focusing on content extraction.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly says 'Use this to read the full content of a page when needed,' providing clear context. Does not explicitly exclude alternatives, but sibling name implies separation of concerns.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

kagi_search_fetchA

Fetch web results for a query using the Kagi Search API. Use for general search and when the user explicitly tells you to 'fetch' results/information. Results are numbered so that a user may refer to a result by a specific number.

ParametersJSON Schema
NameRequiredDescriptionDefault
afterNoOnly include results published/updated on or after this date (ISO format, e.g., '2024-01-15').
limitNoMaximum number of results per category. In the mixed 'search' workflow this caps each category independently, so the total can exceed this number; in single-category workflows it caps total results.
queryYesA concise, keyword-focused search query. Include essential context for standalone use.
beforeNoOnly include results published/updated on or before this date (ISO format, e.g., '2024-12-31').
lens_idNoApply a Kagi lens to narrow the search to a curated set of sources. Built-in lens IDs: '2' (Academic — education/.edu domains), '1' (Forums — discussion forums across the web), '15' (Programming — official programming language sites and forums), '29' (News 360 — multi-perspective coverage of global news), '120' (Recipes — high-quality recipe sites, English), '107' (Small Web — noncommercial domains and topics). You may also pass a custom lens ID or full URL from https://kagi.com/settings/lenses (only shareable lenses work). Mutually exclusive with 'include_domains', 'exclude_domains', 'time_relative', and 'file_type'; use those args or 'lens_id', not both.
workflowNoType of results to return. Use 'news' for current events and recent reporting, 'videos' for video content (e.g. tutorials, talks), 'podcasts' for audio shows, 'images' for image results, or the default 'search' for general web results. Note that 'search' may return a mix of categories (web, news, videos, images) in one response, like a typical SERP; the other workflows return only their single category.search
file_typeNoRestrict to results with this file type (e.g., 'pdf', 'docx', 'xlsx'). Specify the extension without a leading dot.
extract_countNoNumber of top results to fetch full page content for, inline as markdown.
time_relativeNoRestrict to results published/updated within the last day, week, or month, evaluated server-side. Mutually exclusive with 'after'/'before'.
exclude_domainsNoExclude results from these domains (e.g., ['pinterest.com', 'quora.com']). Overrides any 'site:' operators in the query.
include_domainsNoRestrict results to these domains (e.g., ['docs.python.org', 'github.com']). Overrides any 'site:' operators in the query.

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description adds one behavioral trait: 'Results are numbered so that a user may refer to a result by a specific number.' With no annotations provided, the description carries the full burden, but it does not disclose other behaviors like rate limits, authentication needs, or error handling.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise with two sentences, front-loading the core purpose and adding essential usage guidance and a behavioral trait without any fluff.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (11 parameters, output schema exists, sibling tool present), the description is mostly complete. It explains the tool's purpose and numbering, but could mention that results include standard fields (title, URL) though the output schema likely covers that.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description does not add any parameter-level information beyond what is already in the schema; it merely states the overall purpose.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states 'Fetch web results for a query using the Kagi Search API', which specifies the verb and resource. It further distinguishes usage for general search and when the user explicitly says 'fetch', helping differentiate from sibling kagi_extract (which likely extracts content from a URL).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear usage context: 'Use for general search and when the user explicitly tells you to fetch results/information.' It implies when to use it but does not explicitly exclude alternative tools like kagi_extract or list when not to use it.

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.

  1. 2 tool updatesv1.0.1
    • First observedkagi_extract
    • First observedkagi_search_fetch
Deploy Server
One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

TDQS

A4.1/5.0

Scored across 2 tools

Disambiguation5/5

Each tool has a clearly distinct purpose: one extracts page content, the other fetches search results. There is no overlap or ambiguity between them.

Naming Consistency5/5

Both tools follow a consistent 'kagi_' prefix combined with a verb_noun pattern ('extract' and 'search_fetch'), making naming predictable and clear.

Tool Count3/5

With only two tools, the set is minimal but still covers the core search and extract functionalities. However, it feels thin compared to typical MCP servers, which might offer more diverse operations.

Completeness4/5

The server provides the essential operations for its domain: searching and retrieving content. While additional tools like summarization could be useful, the current set is reasonably complete for basic tasks.

Maintenance

ActivityInactive
ResponsivenessResponsive

Resources

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