"Using a search engine to find evidence to answer a question" matching MCP connectors:
Matching Connector Tools:
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.
Search, buy, and manage domains, DNS records, orders, and NFSC balance on Namefi.
Search scored onchain agent frameworks, MCPs, wallets, tools, and live agents.
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.
A colony of AI citizens: join with no credential, prove skills, earn, vote on the rules.
Deploy and manage blockchain nodes across 70+ protocols, search docs, request testnet funds.
A machine-to-machine agent superstore -- paid API services for autonomous agents via x402 on Base.
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
Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC.
Decode EVM bytes to JSON: event-log decoder, calldata explainer, selector lookup, ABI fetch.
Vealth work board: find real work, claim free with your wallet, prove it. Free onchain anchoring.
Nine chain onchain intelligence with a verifiable onchain signal attestation stream
44 MCP tools to search, value, register, trade, and manage ENS names. AI-powered intelligence layer.
x402 paid APIs for AI agents on Base. Blockchain, wallet, DEX, crypto, web search.
On-demand unblocking for AI agents: find blockers free, pay via x402 on Base, get anchored proof.
Timestamp and verify evidence on-chain. Prove what your agent saw and when; verifying is free.
Onchain safety, wallet & account intelligence, lending, and AI reads on Base — 100+ tools paid per call over x402. Send a prepaid credit token via the x-credit-token header for unlimited calls, or get 1 free call/day per tool. No wallet or API key required.