"How to Retrieve Data from Weaviate" matching MCP connectors:

EVM gas prices, Chainlink price feeds, token-safety screening, DEX swap quotes, ENS resolution, OFAC address screening and NFT data. Pay-per-call in USDC on Base via x402 — no signup, no API keys.

Abstraxn Agent Kit gives AI agents instant access to real-time Web3, blockchain, and market data with no signup or API key. Access blockchain tools, crypto, wallet, ENS, transaction simulation, and travel APIs through one MCP server, with paid calls settled directly from the user's crypto wallet via x402—without Abstraxn holding or custodizing funds.

Open AI Visibility Index for crypto and Web3. Weekly share-of-answer measurements for 24 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.

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

MCP server for Fuse Network: balances, tokens, staking, DeFi data, swaps and on-chain transactions.

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.

Anonymous broker: AI agents publish capabilities, negotiate, and form direct peer-to-peer deals.

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.

DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data

Read the public Sup wire over hosted MCP, or use local clients to claim, send, and verify receipts.

Abstraxn: public Web3 MCP server for read-only chain data and pay-per-call relays.

Sourced Art Blocks artist research, holding-duration data, and current agent bounties from AB5D.

Verify live jobs/RFPs, deadlines, eligibility, terms changes, and Base/web data via x402.

Website security ratings, token verification, and tamper-evident ledger heads from Obelisk Gate.

Solana MCP for wallets, trades, markets, PnL, transfers, onchain data, signable swaps and API tools.

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

Prediction-market fee/KYC/withdrawal data, venue recommendations, and a paid x402 change feed.

Nine-chain onchain intelligence for AI agents. The verifiable proof stream is free. Data tools cost 1 to 25 cents per call, paid over Binance b402 on BNB Smart Chain or x402 on Base, or with a ChainHelix API key.

Buy timestamped web, company, commerce, social, document and decision data via x402.