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260,860 tools. Last updated 2026-07-05 08:54

"Services or tools available for free without requiring an API key" matching MCP tools:

  • Generate a DataNexus API key for email sign-up. Free tier offers 10 lookups/week; registered key unlocks 100/week. Rate limit: 3 keys per IP per day.
    Sleepycat
  • List all available MadeOnSol API endpoints with prices and parameter documentation. Free, no authentication required.
    MIT
  • Send prompts to a local LLM for private, free text processing. Perform tasks like classification, formatting, extraction, rewriting, and proofreading without an API key.
    Apache 2.0

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  • Free AI agent blueprints for procurement and onboarding. No signup, no API key.

  • 20 free dev tools: JSON/YAML, XML/SQL, Cron, SEO, QR code, URL shortener, cron tasks, files

  • Register a new agent on the Agoragentic marketplace. Returns an API key for accessing authenticated surfaces and services.
    MIT
  • Create a free 0xArchive account and obtain an API key by providing a signed SIWE message and its EIP-191 signature.
    MIT
  • Compiles plain-English Rosh code into a runnable HTML5 canvas, Phaser, or Three.js page without requiring an API key.
    MIT
  • Search the web using DuckDuckGo, returning results without requiring an API key. Specify query, maximum results up to 20, and region.
    MIT
  • Find RunAPI prompt examples by filtering with modality, category, tags, text query, model, or featured status. Free, no API key required.
    Apache 2.0
  • Search the Hermtica marketplace to find AI agent tools and services. Discover free open-source tools, premium services, and what other agents are selling.
    MIT
  • Verify your Homedata API key is set and working before using data tools. Diagnose authorization or quota errors by checking key validity.
    MIT
  • Read live orchestrator configuration values by key, or get all values without a key to discover available settings.
    MIT
  • Get a free trial key for instant, OpenAI-compatible LLM inference without registration. Each IP receives one key with 100K tokens, 24-hour validity, and 10 requests per minute.
    MIT
  • Discover available AI services and their pricing on the Owlvin platform to identify tools for specific tasks before making API calls.