Example inputPOST /api/v1/x402/iban-checksum
{
"iban": "GB82WEST12345698765432"
}Portable intent card · agent-ops-math
IBAN Checksum Validate API for agents
Validate IBAN checksum (mod 97) offline. Call when payment form validation without banking APIs. Returns valid boolean as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
Intent to transaction
One command, attributed.
The source header follows this discovery route through challenge, payment and delivery without exposing the buyer or request body.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/iban-checksum -m POST -H 'x-delx-source: intent-card-iban-checksum-api' --max-amount 0.001 -b '{"iban":"GB82WEST12345698765432"}'Agent discoverydelx/intent-card/v1
{
"intent": "IBAN Checksum Validate for an agent workflow",
"tool_name": "util_iban_checksum",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/iban-checksum-api.json"
}Portable and inspectable