Curated x402 services
Find paid servicesyour agent can trust.
Explore x402 services by category to find the right endpoint for your agent. A service can list multiple endpoints, and payment requirements are read live when you test. Your policy still decides whether it may pay.
Curated services
Discover published x402 services and compare the interfaces each service offers.
Latest perpetual funding rate, mark price and next funding time for a given Binance symbol, relayed as JSON from the Binance premiumIndex endpoint — POST a symbol such as BTCUSDT. Includes a 3-call free trial per wallet via the X-WALLET header.
Paste an A2A Agent Card URL or inline JSON and this validator checks it against the A2A specification: required fields, skill schemas, endpoint reachability, security schemes and provider transparency. It returns a compatibility score, schema errors, warnings and an Ed25519-signed receipt, paid per call in USDC on Base.
Decode a Base or Ethereum transaction from a hash or raw calldata: decoded function, risk flags such as unlimited token approvals and a risk verdict, with an Ed25519-signed receipt.
European Central Bank daily reference exchange rates for 30+ currencies, any base and quote pair, proxied from the public Frankfurter API. Three free calls per wallet before payment is required.
Audit email deliverability from DNS alone: SPF, DKIM selectors, DMARC strength, BIMI, MTA-STS and MX, returning a 0-100 score and prioritized fixes. Responses are Ed25519-signed; 3 free calls per wallet, then 0.001 USDC on Base.
Get the current crypto Fear and Greed index (0-100) with its classification label, relayed from the public alternative.me feed. POST /service with a JSON limit field; the first 3 calls per wallet are free via the X-WALLET header.
One call snapshots Hyperliquid perpetual futures: mark and oracle price, hourly funding with 8h and APR derivations, open interest, premium and 24h volume across 232 perps, with an Ed25519-signed receipt. 3 free calls per wallet, then 0.001 USDC on Base.
A combined DNS and WHOIS report: A, AAAA, MX, TXT, NS, CNAME, SOA and DNSSEC over DNS-over-HTTPS, registrar and registration/expiry dates via RDAP, plus a 0-100 hygiene score with letter grade. Ed25519-signed, 3 free calls per wallet.
Live Hyperliquid perpetuals data for 230+ assets: open interest, funding (hourly, 8h, APR), mark and oracle price, premium, 24h volume and a crowded long/short signal, plus cross-venue funding versus Bybit and Binance. Ed25519-signed, first 3 calls free.
A multi-asset perpetual futures feed from Hyperliquid: mark and oracle price, open interest, funding with 8h and APR derivations, 24h volume, spread and a directional signal, with optional single-asset detail. Ed25519-signed, with free trial calls via the X-WALLET header.
Machine translation with automatic source-language detection: POST text and a target language code, receive JSON with the translation and an Ed25519 signature. A limited free trial is available per wallet.
Token risk for any contract on Base or Ethereum: a safe, caution, risky or rug_pull verdict combining GoPlus security data (honeypot simulation, buy/sell tax, holder count, ownership flags) with a bytecode scan, owner-renounce check and honeypot.is. Ed25519-signed.
Monitor an EVM contract on Base or Ethereum: current security verdict plus a diff of what changed since the last check — owner, proxy implementation, proxy admin, Sourcify verification, honeypot and tax flags. Ed25519-signed, 0.02 USDC per call on Base.
OHLCV candles — open, high, low, close, volume — for any crypto pair and interval, proxied from Binance public klines. Pay-per-call x402 on Base; the first 3 calls per wallet are free via the X-WALLET header.
Current on-chain USD price for a token on a given chain, sourced from GeckoTerminal — pass a network and a token address. The first 3 calls per wallet are free via the X-WALLET header.
An x402-native blockchain data API covering balances, NFTs, transactions, DEX and pricing across 100+ chains. Pay per request in USDC on Base Sepolia testnet with no API key.
Wallet, DeFi portfolio and on-chain data from Zerion: portfolio summaries, positions and transaction history for any wallet address. Pay per request via x402 on Base and Solana, no API key.
CoinGecko market data with x402-gated endpoints for agents: simple price quotes for any supported coin and currency pair, plus on-chain DEX data, paid per call in USDC on Base or Solana — no subscription.