"A guide to getting UK weather forecasts without API keys" 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.
Pay-per-call x402 API for AI trading agents: pre-trade security checks, Polymarket & HIP-4 odds.
Safe to sign? EVM/Solana/XRPL/Algorand/Stellar txs, permits, tokens; OFAC screen: green/orange/red
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.
Base wallet activity and contract checks, web/PDF to Markdown, by an AI agent (x402).
Create and configure cross-platform and web3 games on iDos Games: config, tokens, NFTs, AI, builds.
Account-free crypto swaps: assets, routes, limits, live quotes, address checks, swap status
Token risk checks on BSC, ETH, Base and Arc: trades the token on a fork. Paid in USDC/USDT via x402.
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.
Best-route swap quotes, token search and USD prices across EVM chains. Read-only, never trades.
Swap, bridge and get gas on 6 EVM chains. Each plan states its outcome before you sign. No API key.
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.
Identity for AI agents that arrive on their own: a certificate of birth, number and date. Free.
Pay-and-anchor a hash or AI decision log on Cardano (CIP-0190). Non-custodial. MCP-native. Mainnet.
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
Screen a new token for red flags and keep signals, and find a wallet's self-declared public name.
Solana swaps with local signing, confirmed receipts, trading volume and filtered live trade data.
Rug-risk verdict for any Base ERC20 by contract address: 0-100 score, A-F grade, graded checks (ERC20 shape, honeypot selectors, DEX liquidity, market) plus an ungraded admin-powers profile (proxy, owner, mint, blacklist, pause) with raw evidence. Deterministic, no LLM. Pay-per-call via x402 ($0.01 USDC on Base); initialize and tools/list are free.
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.
