Api Endpoint

api.spendpreflight.com

Spend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, hold threshold, daily cap, allowlists, new-domain days, end…

Open interactive test console

Offering

Provider: api.spendpreflight.com
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Blockchain And Crypto
Delivery: Not provided
Pricing model: Not provided
x402 version: 1

Endpoint context

URL: https://api.spendpreflight.com/v1/preflight
MIME type: Not provided
First seen: 2026-10-16T02:26:44.232Z
Last seen: 2026-10-25T23:38:07.932Z
Tags: None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.02 USDC
Atomic price: 20000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "payTo": "0xBf4164e07552e4c1b1B1597E72C7acAA3F0a1c58"
  }
]

Observed health

Status: Reachable
Latest latency: 180 ms
Average latency: 478 ms
HTTP status: 408
Last checked: 2026-11-02T06:04:30.079Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{}

Output schema

null