"Understanding RAG (Retrieval-Augmented Generation or related topics)" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting
Cook County / Chicago property by address or PIN: sales, permits, assessments, comps. 25 free/day.
Give an agent a place to put large output. Instead of returning 40k characters of a build log into the conversation, it posts the file to docbin and hands back one short URL. Docs render with syntax highlighting and markdown, every update is a new immutable version, and old links keep working. Six tools for create, read, update, delete, list and search. Works anonymously with no signup, or sign in for permanent docs under your own handle.
Search US product recalls (FDA, USDA, CPSC) via MCP. Free API keys or $0.025 USDC/call on Base via x402. Tools: search_product_recalls, search_product_recalls_by_upc, search_product_recalls_from_image. Docs: https://recallkitchen.com/docs/ GitHub: https://github.com/Recall-Kitchen/rk-mcp
191Read-only directory of vetted AI implementation agencies from the Ashton & Forge marketplace. Search supply by service cluster, industry, client size, engagement stage, or budget; get_matched returns the brief link for up to three human-verified introductions.
Get recommended by Amazon's AI. Hosted MCP server for Amazon listing compliance & generation.
Three independent sensors read pre-price Bitcoin flows every 30s and reject almost everything. When they converge, a call is emitted with evidence — and the public rejection funnel proves how often it stays silent. Auditable in one call. Free tier; Pro 50 USD/month or 0.01 USD/query via x402.
Memwyre is an MCP-native persistent memory layer for AI agents, synchronizing context across Claude Code, Cursor, VS Code, and OpenClaw. Built with a high-precision retrieval architecture (dense vector search, BM25, and cross-encoder reranking), Memwyre achieves a benchmarked 73.1% accuracy on the Long-Context Memory (LoCoMo) benchmark. It provides secure, isolated knowledge vaults with dedicated tools (search_memwyre, save_memory, list_memories) to save and recall structured project decisions.
131Zero-auth MCP server for sending a reminder to anyone with a public UnRemind.me page. No account or token. The recipient approves it before it enters their list.
Classify data safety before storing or sharing. GDPR, HIPAA, PCI-DSS, CCPA. AI-powered.
Use MCP 2026-07-28 discovery or 2025-11-25 initialize to list and execute PubFi routes.
Create, edit, review, and explicitly publish Live or Snapshot Markdown Documents in mdedit.ai.
Search and cite US law from official sources, then form an LLC or nonprofit with free agent tools.
Magic Hour MCP lets AI agents create and edit images, videos, and audio using Magic Hour’s hosted generation tools.
Buy and manage travel eSIM data plans in the conversation. Pay by card (Stripe) or USDC over x402.
Ready for a new way to bill pay? Pay any US bill in a snap, right from your AI assistant. Describe or snap a photo of your bill (electric, water, gas, internet, phone, medical, credit card, rent, parking tickets, traffic violations and more) and Papaya reads it, then hands you a secure link to pay by card. Fast, secure, and no juggling twelve logins, with full or partial payments and status updates. Available in the US only. Powered by Papaya (papayapay.com).
Docs: https://docs.keenable.ai/mcp-server Keenable is a free, remote MCP server that gives agents access to the web index. Search the web with ranked results and date/site filters, then fetch any indexed page as clean markdown. Works out of the box with no account or API key.
Do things on live websites: prices, availability, quotes, bookings, anything behind a form or login.
CatchAll is a web search API built for comprehensive event retrieval — not ranked results, but all matching records.
MCP server for GOV.UK — search, content retrieval, organisation lookup, and postcode resolution.