"Wikipedia - The Free Online Encyclopedia" matching MCP connectors:

Agent-facing intake for HORIZON SHIELD, the Japanese construction estimate auditor.

Connect your AI assistant to Signed and ask about your angel investing in plain English: how the portfolio is doing, what distributions came in this year, what’s sitting in the pitch queue. It's a view into the startups that you've invested in (or are thinking of investing in!)

Free self-serve Agent Passports for AI agents: signed, portable, offline-verifiable credentials.

Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.

Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.

Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev

Provides a platform-agnostic specification of the technical features every decent website should have

Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude. Checks eligibility before recommending, explains why each grant fits, and cites the funder's own page on every answer — with an honest "competition_risk: unknown" when the data isn't there. 6 tools: search, fetch, find_opportunities, should_apply, explain_opportunity, complete_profile. Transport: Streamable HTTP. Auth: OAuth 2.1 + PKCE. Free to install, no card required.

Pay-per-use tool API for AI agents. Free tier, x402 USDC micropayments, or API key.

Universal pay-per-call tool API for AI agents. Web search, price feeds, hive memory, LLM routing, code sandbox. Free tier (10 calls/day, no signup). x402 payments on Base + Solana.

The PropelAuth Integration MCP Server helps you and your favorite AI agent integrate PropelAuth as quickly and easily as possible into your project. Whether you're integrating PropelAuth into your Next.js project or your FastAPI backend, the Integration MCP Server will ensure your AI agent has the best context possible for a successful integration.

Search Austrian federal and state law, court decisions, and the authentic Bundesgesetzblatt (RIS).

Point-in-time, survivorship-free SEC EDGAR fundamentals + smart-money signals for AI agents.

Access the OpenAlex academic research catalog — 270M+ publications.

US consumer product recalls from the CPSC — hazards, remedies, and affected products.

Researcher profiles, works, affiliations, funding, and peer reviews from the ORCID registry.

Fleet discovery for the cyanheads MCP ecosystem — semantic search + install snippets.

Search and analyze global news coverage and US TV transcripts via the GDELT Project APIs.

Read and write typed fictional worlds (22 linked element types) via the OnlyWorlds open standard.

Search the Final POS REST API documentation.