Web3 & Decentralized Tech 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.
See what actually settles on x402: wash-adjusted volume, payTo checks. Free, no key, no signup.
Mocap, rehab biomechanics, threat intel, fleet vision. 21 MCP tools, 10 free. x402/USDC paid.
Search, buy, and manage domains, DNS records, orders, and NFSC balance on Namefi.
Search scored onchain agent frameworks, MCPs, wallets, tools, and live agents.
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.
Evidence-backed crypto due diligence with sources, freshness, and a runtime receipt on every call.
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.
Live, neutral benchmarks for public RPC latency, oracles, bridges, perp DEX, and prediction markets.
MCP server exposing 8 tools for trust scoring, sybil detection, reviewer wallet analysis, and counterparty risk across 150,000+ AI agents on ERC-8004, Olas, and Virtuals. Streamable HTTP, JSON-RPC 2.0, no API key required.
Pre-transaction risk screening for Ethereum addresses: signed score, sanctions, audit trail.
Gasless, MEV-protected onchain token swaps for AI agents on 14 EVM chains, built on CoW Protocol.
Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual
DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data
Read-only XRP Ledger MCP tools with proof-annotation envelopes and signed daily snapshots.
Live operational + integration registry for Bittensor subnets: APIs, schemas, health.