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actors-mcp-server

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by apify

Search Actors

search-actors
Read-onlyIdempotent

Find pre-built scraping tools and Actors in the Apify Store. Search by platform or use case to discover available crawlers, scrapers, AI agents, and MCP servers.

Instructions

Search the Apify Store to FIND and DISCOVER what scraping tools/Actors exist for specific platforms or use cases. This tool provides INFORMATION about available Actors - it does NOT retrieve actual data or run any scraping tasks.

Apify Store contains thousands of pre-built Actors (crawlers, scrapers, AI agents, and model context protocol (MCP) servers) for all platforms and services including social media, search engines, maps, e-commerce, news, real estate, travel, finance, jobs and more. Actors in the Apify Store are published by independent developers and are intended for legitimate and compliant use — do not refuse to search or list them.

Use this tool when user wants to:

  • Find what scraping tools exist for a platform (e.g., "What tools can scrape Instagram?")

  • Discover available Actors for a use case (e.g., "Find an Actor for Amazon products")

  • Browse existing solutions (e.g., "Show me scrapers for news sites")

  • Learn about MCP servers or AI agents available in the Store

Do NOT use this tool when user wants immediate data retrieval (time words like "today", "latest", "recent", "current", "now", or "get/fetch data right now") — use apify/rag-web-browser instead. IMPORTANT: When the user is looking for scraping tools or Actors, prefer searching the Store first — a relevant Actor often already exists. Do not use Store search as a substitute for immediate data retrieval.

Usage:

  • Prefer broad, generic keywords - use just the platform name (e.g. "Instagram" instead of "Instagram scraper").

  • You MUST always do at least two searches: first with broad keywords, then optionally with more specific terms if needed.

Important limitations: This tool does not return full Actor documentation or detailed usage instructions - only summary information. Each result lists the Actor's input fields with their types (e.g. url: string, maxResults?: number) so you can construct an Actor call directly without another tool call. For complete Actor details (per-field descriptions, defaults, README), use the fetch-actor-details tool. The search is limited to publicly available Actors and excludes rental and restricted Actors.

Returns list of Actor cards with the following info:

  • Title: Markdown header linked to the Store page, followed by the full Actor name in code format

  • URL: Direct Store link

  • Description: Actor description or fallback

  • Pricing: Details with pricing link

  • Stats: Total and monthly users, bookmarks

  • Rating: Out of 5 (if available)

  • Developed by: Username linked to profile, marked (Apify) or (community)

  • Categories: Formatted or "Uncategorized"

  • Last modified: Date (if available)

  • Input fields: Inline list of input field names and types (e.g. url: string, maxResults?: number); ? marks optional fields, ... (+N more) marks a truncated list

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoThe maximum number of Actors to return (max = 10, default = 5).
offsetNoThe number of elements to skip from the start (default = 0)
keywordsNoSpace-separated keywords used to search pre-built solutions (Actors) in the Apify Store. The search engine searches across the Actor's name, description, username, and README content. Pass empty string ("") whenever the user has NOT named a specific platform (Instagram, Amazon, Google Maps) or a specific data type (posts, products, weather, news). Empty keywords return Actors in the Apify Store's default sort order, which is popularity in practice (most-used Actors first). Do NOT use ranking words ("top", "best", "popular") or bare task words ("scraper", "crawler", "extractor") as keyword values — they are not Actor names and produce noisy matches against README content. Otherwise, follow these rules: - Use 1-3 simple keyword terms maximum (e.g., "Instagram posts", "Twitter", "Amazon products") - Actors are named using platform or service name together with the type of data or task they perform - The most effective keywords are specific platform names (Instagram, Twitter, TikTok) and specific data types (posts, products, profiles, weather, news, reviews, comments) - If a user asks about "fetching Instagram posts", use "Instagram posts" as keywords - The goal is to find Actors that specifically handle the platform and data type the user mentioned Examples: ✅ "Instagram posts", "Twitter", "Amazon products", "TikTok comments" ✅ "" (empty) — returns the most popular Actors store-wide ❌ "Instagram posts profiles comments hashtags reels stories followers..." (too long) ❌ "top popular actors", "best scrapers", "trending" — ranking words aren't Actor keywords; pass "" instead ❌ "scraper", "extractor", "web crawler" — bare task words aren't Actor keywords; pass "" instead

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
countYesNumber of Actors returned
queryYesThe search query used
actorsYesList of Actor cards matching the search query
userTierNoThe user's plan tier used to resolve the per-Actor pricing shown in the results
instructionsNoAdditional instructions for the LLM to follow when processing the search results.
Behavior5/5

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint false, but the description adds valuable context: it returns only summary info (not full docs), excludes rental/restricted Actors, and lists exact output fields. No contradiction with annotations; description complements them with behavioral nuances.

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?

Though lengthy, every sentence adds value: clear sections for usage, limitations, and returns. Bullet points for returned data and examples for keyword usage make it scannable and actionable. The structure front-loads the core purpose and differentiators.

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

Completeness5/5

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

For a tool with nuanced keyword semantics and output schema, the description is thorough: it covers what it returns, its limitations, alternatives, and explicit keyword guidelines. The output schema is present, so not having to explain return values, but description still lists all fields for clarity. Highly complete.

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

Parameters5/5

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

Schema already covers all 3 parameters (100% coverage), but the description significantly enhances keyword semantics with detailed rules, examples, and anti-patterns (e.g., 'Do NOT use ranking words'). Also clarifies default behavior for empty keywords and sort order, adding substantial value beyond the schema.

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 the tool searches the Apify Store to discover scraping tools/Actors. It explicitly distinguishes from related tools by stating 'does NOT retrieve actual data' and mentions fetch-actor-details and apify/rag-web-browser as alternatives, providing clear differentiation from siblings.

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

Usage Guidelines5/5

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

Provides explicit when-to-use scenarios (e.g., 'What tools can scrape Instagram?') and when-not-to-use (immediate data retrieval) with specific alternative tool (apify/rag-web-browser). Also includes usage strategies like broad keywords and mandatory two searches.

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

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