"Search functionality without API key requirement" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Pre-trade token safety check for AI agents. Simulates a sell before you buy, then returns one low/medium/high/unknown verdict with the signals behind it: sellability, buy/sell tax, liquidity depth, pair age, same-ticker impersonation, owner powers from bytecode. Ethereum, BSC, Base, Solana. Fail-closed - a check that cannot run answers unknown, never low. Publishes its own measured error rate with the benchmark harness in the repo. Free, no signup, no API key, MIT.
Swap, bridge and get gas on 6 EVM chains. Each plan states its outcome before you sign. No API key.
Account-free crypto swaps: assets, routes, limits, live quotes, address checks, swap status
Pay-per-call x402 API for AI trading agents: pre-trade security checks, Polymarket & HIP-4 odds.
WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name (ENS, Unstoppable, Handshake) lookups. No API key.
Real-time crypto futures order flow, liquidation cascades, and quantitative TA metrics across 1,650+ perpetuals (Binance, Bybit, Hyperliquid). Delivers ultra-dense, token-efficient summaries and async SSE alerts directly into AI agent context without burning tokens on raw OHLCV candles.
Rent TRON energy and bandwidth from AI agents: live quotes, orders paid on-chain or from a TronSave balance, auto-buy and auto-sell, extensions and account tools. Sign in with a TronSave API key or TronLink.
Create and configure cross-platform and web3 games on iDos Games: config, tokens, NFTs, AI, builds.
Token risk checks on BSC, ETH, Base and Arc: trades the token on a fork. Paid in USDC/USDT via x402.
Best-route swap quotes, token search and USD prices across EVM chains. Read-only, never trades.
Pay-per-call MCP tools for agents: 20 free calls a day, then pay per call with x402 (USDC on Base mainnet) or a prepaid spend key. 30 tools — text/data utilities, x402/EVM-native tools (decode an x402 challenge, verify a settlement receipt on-chain, EIP-712 hashing, ABI encode/decode, Merkle-proof verify, keccak256, EIP-55 address checks) and independent providers' tools priced from $0.001. Signed delivery receipts. No sign-up.
Search and read the Celo developer documentation
Build any crypto agent: x402, ERC-8004, wallets. Does a server take your key? Hosted? Maintained?
NFT market data on 12 networks, soulbound badges and Moments. Non-custodial: you sign everything.
Who is buying the prediction-market line: Polymarket wallet records, board, edges, entries.
Gasless MEV-protected swaps + cross-chain quotes across EVM chains — incl. tokenized stocks.
Crypto news, perps, market pulse, price history and token checks for AI agents. USDC per call.
Arc gateway for agents: token checks, swaps, the ERC-8004 directory, agent boxes, accounts. x402
Solana swaps with local signing, confirmed receipts, trading volume and filtered live trade data.
Check an AI agent is registered, Active and Verified in Concordium's registry. By Crypto Money Maker
Solana DeFi checks for AI agents: launches, holders, wallets, pools, perps and swaps, with verdicts.
A marketplace for AI agents. Tools and data for agents, on one MCP address. No account, no API key.
Rug pull risk and on-chain forensics for tokens on Solana and six EVM chains.
Read-only data on Arc, Circle's blockchain, from Registrai: apps on Arc with their stablecoin payments (USDC, EURC), paying wallets and volume; the Arc ecosystem directory (258 projects with status, launch date and sources); Arc chain figures (USDC supply, TVL, daily transactions); and the hourly Arc indices. No key, CC BY 4.0. Website and method: https://builder.registrai.cc
AI agents that watch DeFi positions: read a wallet report, draft agents for the owner to sign.
Uniswap/PancakeSwap/Aerodrome LP pools and price ranges ranked by net APR after impermanent loss
Non-custodial limit, stop-loss and DCA trading on Epsilon (Robinhood Chain) for AI agents
GTA VI news, GTA RP servers, Web3 domains and merch for AI agents, plus crypto donations.
Search and read Web3 security education articles and a 230-term glossary from Onchain Diary.
Evidence-backed DeFi yield data for AI assistants: market summaries by chain or protocol, pool detail with base vs reward-token APY, 90-day history and side-by-side comparisons for ~17,000 pools on 100+ chains. Every number dated; unknowns stay unknown. Read-only: no wallets, signing or transactions. No sign-in needed. Docs: https://web3juice.com/mcp
