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

Mocap, rehab biomechanics, threat intel, fleet vision. 21 MCP tools, 10 free. x402/USDC paid.

Is a wallet frozen by Tether/Circle? Free freeze checks + full history, screening & KYT. 9 chains.

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.

Search and license 5,000+ fully cleared music tracks via MCP. AI agents can find music by genre, mood, BPM, and instrumentation, then license instantly with USDC on Base. No human in the loop. Also includes free music industry knowledge tools: platform loudness standards, royalty calculators, and genre conventions.

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

Ed25519-signed verdicts resolved against real ground truth. Free claim/verify; paid bonded dispute.

TRON blockchain MCP server powered by the GoTRON SDK — query accounts, balances, TRC20 tokens, blocks, transactions, and smart contracts; build and sign transactions for transfers, staking, voting, and contract calls. Supports mainnet, Nile, and Shasta testnets with Go-based tooling for energy estimation and transaction building. Available via stdio or hosted Streamable HTTP

Rent verified subdomains by the hour, day, or month. Free 24h trials, x402 USDC on Base.

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

MiCA compliance evidence, stablecoin risk scoring (105+ tokens), macroeconomic regime detection (86 FRED series), and AI agent governance. 79 tools across 5 MCP servers. Every response ECDSA-signed, blockchain-anchored, audit-ready. Free tier, no API key needed. Works with Claude Managed Agents.

Agent MCP for DeFi: cross-chain LINQ fan-out, AMM quotes/swaps, bridge, AI. Solana+EVM. Free+x402.

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

8 pay-per-call web intel tools over MCP. Free discovery, calls settle in USDC on Base (x402).

Monero/Zcash payment webhooks + DeFi liquidation & Ethereum builder data over MCP. Free tier; x402.

Free daily AI crypto research verdicts: graded stance, dimensions, and key levels for 67+ coins.

ViridisOS — theorem-backed conservation certification + the unified trust root/mark/toll. Certify pa

Find the cheapest EVM chain across up to 9 networks with savings %. Pay-per-call via x402 on Base.

Conformal TCG risk forecasts + AI card grading, x402 pay-per-call oracle, on-chain soul agents.