code402 / tools / iso4217-currency-check

ISO 4217 Currency Standard Check & Settlement Mapping — pay-per-call API

Name: code402 — ISO 4217 Currency Standard Check & Settlement Mapping
Price: 0.000999 USD
Author: code402

$0.000999 per call · 20 free calls/day · no signup · pay with card credits or a signed USDC voucher (x402)

Validate 3-letter alpha or 3-digit numeric currency codes against ISO 4217 standard. Returns minor unit decimals, symbol, official name, countries, and onchain Base L2 settlement token mapping (USDC/EURC).

Honest scope: Deterministic, offline, explainable — no ML, no scraping. The response's scope field states the exact guarantee.

Try it (first 20 calls/day free)

curl -X POST https://rail.akrivis.in/v1/tools/iso4217-currency-check/call \
  -H "content-type: application/json" \
  -d '{"currency":"EUR"}'

No key needed for the free tier. When the free quota is used up, the API replies HTTP 402 with the exact price — agents sign the x402 voucher and retry; humans buy card credits. Every paid response carries a signed receipt you can verify offline.

Run it in the playground (free)Pay by card — credits, no crypto

Input parameters

Field	Type	Meaning
`currency` (required)	string	3-letter ISO 4217 code (e.g. USD, EUR, JPY, CNY, BRL, KES, MXN) or 3-digit numeric code (e.g. 840, 978, 392).

Response

Top-level fields: tool, valid, normalized, country, reason, scope. Paid responses also carry a signed XDR-1 receipt.

All code402 tools

Machine-readable catalog: llms-full.txt · MCP manifest · OpenAPI. Operated by JUANA LIMITED (UK Co. No. 14043409). Non-custodial: USDC settles payer→seller directly on Base.