SWIFT/BIC Structure & Country Code Check

Machine-to-Machine Conformance API · swift-bic-check

$0.005 / call 3 free calls/day No signup

Validate a SWIFT/BIC code by ISO 9362 structure (bank code, ISO country, location, optional branch). Run before foreign wire transfer dispatch to prevent routing rejection. Returns signed XDR-1 receipt.

Honest Scope Guarantee

Format-only: no public check digit exists for this identifier, so "valid" means well-formed, not mathematically proven. Existence of the record is not checked. Bank/branch existence needs a registry lookup we do not do.

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Quickstart & Execution

cURL (20 Free Calls/Day • Zero Authentication Required)

curl -X POST https://api.code402.dev/v1/tools/swift-bic-check/call \
  -H "content-type: application/json" \
  -d '{"bic":"DEUTDEFF500"}'

No API key needed for the free daily tier. When daily quota exhausts, the endpoint replies with HTTP 402 Payment Required specifying the exact USDC amount. Machines sign an EIP-3009 transfer on Base L2; human engineers buy card credits. Every paid execution returns a cryptographically signed XDR-1 receipt for zero-knowledge audit trails.

Input Parameters

Field	Type	Meaning & Constraints
`bic` (REQUIRED)	`string`	SWIFT/BIC code, 8 or 11 characters; spaces/dashes allowed.

Response Format

Deterministic JSON payload fields: tool, valid, normalized, country, reason, scope. Paid responses also carry an offline-verifiable receipt object (XDR-1, secp256k1 signature recoverable to the authorized signer).

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