Saylor Innovations x402 Test x402 REST usage
x402 test endpoint - pay once and get an itemized receipt with network, amount, payer and transaction
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x402 test endpoint - pay once and get an itemized receipt with network, amount, payer and transaction
Is this x402 endpoint safe to pay? Check it before your AI agent pays: go / caution / no_go, the recommended payment option, and why (payment would fail, over your budget, price above advertised, not HTTPS, unknown token...
Decode JWT: paste a JSON Web Token and get the decoded header, payload claims, human-readable iat/exp/nbf times, expired or not-yet-valid status, seconds until expiry and security warnings such as alg=none. No signature...
Test your x402 client or agent for the minimum price: confirms the payment arrived and echoes back the network, scheme, payer and amount the server saw, your IP, user agent, time and any 'eco' text you send.
Use when an agent needs x402 market totals. Returns catalogue size and 30-day totals: services, calls, unique paying wallets, with the snapshot hash
Regex tester: runs a JavaScript regular expression (pattern or /pattern/flags) against your text with the global flag, returning every match with index, the capture groups and named groups, the match count, and a 2-secon...
JWT decoder (no signature verification, nothing stored): header (alg, kid, typ), payload claims, human-readable iat/exp/nbf, whether the token is expired or not yet valid, seconds until expiry, and warnings such as alg=n...
npm package debug: latest version, description, license, homepage and repository, weekly downloads, dependency count, publish dates and dist-tags from the npm registry. Pin, audit or compare debug in one call, no token....
EIP-3009 authorization state: was this USDC transferWithAuthorization nonce already used? Safe-retry check for agents that pay over x402.
HTTP status code explained: the standard reason phrase, what it means and what a client should do, for every common code, or the full list for a class like '4xx'. $0.01 per lookup.