BAP-1 ISO 20022 to x402 Intent Mapper

Machine-to-Machine Conformance API · iso20022-to-x402-intent

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Translates validated ISO 20022 payment instructions (pain.001 / pacs.008) into deterministic EIP-712 payment-intent templates for autonomous x402 Base L2 USDC settlement (BAP-1). Zero custody, no fiat leg.

Honest Scope Guarantee

Translates approved ISO 20022 payment instructions into unsigned EIP-3009 USDC payment templates (BAP-1) on Base L2. No fiat leg, no FX quotes.

Run in Playground (Free) Buy Card Credits Agent Quickstart

Quickstart & Execution

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

curl -X POST https://api.code402.dev/v1/tools/iso20022-to-x402-intent/call \
  -H "content-type: application/json" \
  -d '{"instruction":{"end_to_end_id":"E2E-1001","instructed_amount":{"currency":"USD","amount_str":"250.00","amount_minor":"250000000"},"debtor":{"iban":"DE89370400440532013000"},"creditor":{"iban":"DE77100100100123456789"}},"seller_pay_to_address":"0xc59c85e661d34084a7769f955d17fd38254a6235"}'

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
`instruction` (REQUIRED)	`object`	Validated BAP-1 payment instruction object
`counterparty_wallet_directory`	`object`	Enterprise IBAN -> 0x Base L2 wallet address map
`seller_pay_to_address`	`string`	Fallback recipient Base L2 address
`chain_id`	`number`	Target chain ID (default 8453 for Base)

Response Format

Deterministic JSON payload fields: ok, standard, intent_template, status, notice. Paid responses also carry an offline-verifiable receipt object (XDR-1, secp256k1 signature recoverable to the authorized signer).

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