{"service":"47620 Utilities API","description":"Pay-per-call deterministic utilities for agents: decode JWT, convert units, generate QR codes, convert unix timestamps, sha-256 fingerprints. No signup, no API key — pay USDC per call via x402 (HTTP 402). Settles in USDC on Solana, Base or Polygon.","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","currency":"USDC","endpoints":[{"id":"util-jwt-decode","url":"https://47620.xyz/x/util/jwt-decode","facilitatedUrl":"https://47620.xyz/x/util-fac/jwt-decode","priceUsd":0.002,"description":"Decode a JWT (JSON Web Token): returns the header, payload and the extracted claims (subject sub, issuer iss, audience aud, expiration exp with `expired` flag and seconds remaining, issued-at iat, not-before nbf, algorithm alg, key id kid). Decode-only — the signature is NOT verified, so claims are informational. Pass the token via ?token=<jwt> (query param, no length limit).","example":"?token=eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIxMjMifQ.sig","tags":["util","jwt","decode","token","security","tools"]},{"id":"util-convert","url":"https://47620.xyz/x/util/convert","facilitatedUrl":"https://47620.xyz/x/util-fac/convert","priceUsd":0.001,"description":"Convert any value between units: length (m/km/mi/ft/in/yd/nmi, plus Russian verst/sazhen/arshin/vershok), mass (g/kg/lb/oz/tonne, plus Russian pood/funt/zolotnik), area (m2/ft2/km2/acre/hectare) and temperature (C/F/K). Pass ?value=<n>&from=<unit>&to=<unit>. Returns the converted value and the unit category.","example":"?value=26.2&from=miles&to=km","tags":["util","convert","units","measurement","tools"]},{"id":"util-qr","url":"https://47620.xyz/x/util/qr","facilitatedUrl":"https://47620.xyz/x/util-fac/qr","priceUsd":0.002,"description":"Generate a QR code for any text/URL and return it as an inline SVG (and a base64 data URI). Query: ?text=<content> (required), size=<px per module, default 6> and margin=<modules, default 4>. Pure CPU, no external service.","example":"?text=https://47620.xyz&size=8","tags":["util","qr","qrcode","image","tools"]},{"id":"util-timestamp","url":"https://47620.xyz/x/util/timestamp","facilitatedUrl":"https://47620.xyz/x/util-fac/timestamp","priceUsd":0.001,"description":"Convert between unix epoch and human time: pass ?value=<seconds|ms|ISO-string> and get back epoch (s + ms), ISO-8601 UTC, and the value in a target timezone (?tz=America/Santiago, default UTC). Units are auto-detected (10-digit = seconds, 13-digit = ms).","example":"?value=1790553600000&tz=America/Santiago","tags":["util","timestamp","unix","time","date","tools"]},{"id":"util-fingerprint","url":"https://47620.xyz/x/util/fingerprint","facilitatedUrl":"https://47620.xyz/x/util-fac/fingerprint","priceUsd":0.001,"description":"Compute a SHA-256 fingerprint of any string: full hex digest, colon-separated (like SSH fingerprints), a short 16-char id, and base64. Deterministic, CPU-only. Pass ?text=<content>.","example":"?text=hello world","tags":["util","hash","sha256","fingerprint","tools"]}]}