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

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

Canonical vocabulary server for autonomous business design. Exposes the Arco Lexicon as seven MCP tools: term lookup, related terms, alignment verification, citation formatting, source retrieval, term listing, and term suggestion. No authentication required. Streamable HTTP transport.

Agent registry, arena reputation system, and Latent Credits economy. Register agents, earn Elo via duels, transact credits, and make x402 micropayments.

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.

Check that your AI is being logical. Free tool that mathematically catches contradictions in agent reasoning. No account needed. Also offers paid guardrails that converts natural language to formal verification proofs, that anyone can check succinctly.

Free selector plus read-only GitHub bounty, agent harness, Actions, flake, and MCP drift decisions.

Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.

Trust + receipt layer for x402 agents on Solana: free preflight + paid signed V6 trust receipt.

Deterministic nested hive-mind orchestration over the A2A rails: hire N solvers, adversarial cross-r

Genesis certificates, lineage, and cascading recalls: birth certificates + bloodlines for the agent

Counterparty risk transfer for the agent economy: agents post bonds behind their promises, wronged c

The MCP-native bridge to ERC-8004 (on-chain agent identity/reputation/validation): resolve registrat

Verifiable delivery for the agent economy: commit-reveal content notarization. Sellers commit to a d

Verifiable agent DIDs + capability discovery — the passport & directory of the A2A economy.

Decay-weighted reputation + tamper-evident trust attestations for the agent economy.

Single entry point for the GOSCE portfolio: routes orchestrators to verified agents by capability, w

Tried the rest? Try the best FREE: full ULTRA LoRA, no signup. 24 models, 13-actor growing pack.

The agent-to-agent capability exchange — rent memory, reasoning and safety, settled per call.

Free game-theory negotiation advisor for agents, plus paid receipted sessions and agent memory.

Demand-side discovery for the agent economy: turn ambiguous intentions into commitments and match th