the402 endpoint detail

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api.delx.ai x402 idempotency-fingerprint

https://api.delx.ai/api/v1/x402/idempotency-fingerprint

payable

Create a stable SHA-256 idempotency fingerprint from a scope and canonical payload without storing state — call when writing a ledger or workflow event that must not double-apply. Use before side effects when composing multi-step agent jobs—the same loyalty/workflow demand band agents already pay for on Bazaar, but fully local. Returns deterministic machine-readable JSON for $0.003 USDC via x402 o

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.003
Network
base
Pay to
0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
162 ms
Payment options
3 usable of 3
Last checked
2026-08-10T09:13:29.464Z (1d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.delx.ai%2Fapi%2Fv1%2Fx402%2Fidempotency-fingerprint"