Create B2B contractor invoice

Machine-to-Machine Conformance API · create-b2b-invoice

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Generate a pre-cleared, gasless B2B settlement invoice on Base L2 with floating piecewise dynamic fee (capped) and dual-rail bank coordinates (JUANA LIMITED Tide / CurrencyCloud).

Honest Scope Guarantee

Generates a pre-clearable gasless B2B settlement invoice record on Base L2 with capped floating fee and dual-rail bank coordinates for the contracting parties. Invoice generation is deterministic; settlement is on-chain and non-custodial.

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Quickstart & Execution

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

curl -X POST https://api.code402.dev/v1/tools/create-b2b-invoice/call \
  -H "content-type: application/json" \
  -d '{"amount_usdc":50000,"merchant":"0xc59c85e661d34084a7769f955d17fd38254a6235","client_name":"Apex AI","memo":"Sprint #14 Milestones"}'

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
`amount_usdc` (REQUIRED)	`number`	Invoice total in USDC (e.g. 50000).
`merchant` (REQUIRED)	`string`	Beneficiary contractor Base EVM wallet address (0x...).
`client_name`	`string`	Client enterprise organization name (optional).
`memo`	`string`	Engagement scope / milestone description (optional).
`referrer`	`string`	Referral partner wallet address to earn 20% protocol fee rebate (optional).

Response Format

Deterministic JSON payload fields: tool, valid, invoice_id, amount_usdc, merchant, status, cart_hash, protocol_fee_usdc, invoice_url, pay_url, scope. Paid responses also carry an offline-verifiable receipt object (XDR-1, secp256k1 signature recoverable to the authorized signer).

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