api.spendpreflight.com
LiveDocuments/ConvertSpend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, (the service's own listing text)
13/13Recent Test Calls That Worked
461 msTypical Response Time (slow end: 758 ms)
$0.02 / $0.02Listed / Actual Price: match
Same AddressPayment Address (payTo): the same on all 12 checks of the main route
2Directories Listing It
28 min agoLast Checked (2026-10-24T06:38:18Z)
Listed Vs. Actual Price
Listed = the price in the directory listing today, for the main route we test. Actual = the price that route asked for when we called it (from our signed records). Some differences are normal, like prices that depend on the request.
| Period | Listed | Actual | Result |
|---|---|---|---|
| Recent Checks | $0.02 | $0.02 | Matches Listing |
Latest Signed Records
| Signed Record | Time (UTC) | Reply | Asked For Payment Correctly | ms | Price Asked |
|---|---|---|---|---|---|
| 29b4a3c77ec82354270f | 2026-10-24T06:38:18Z | 402 | Yes | 232 | $0.02 |
| 6a2e04656623b75c2944 | 2026-10-24T06:08:20Z | 402 | Yes | 322 | $0.02 |
| 10ffe761823be22fdac2 | 2026-10-24T05:38:27Z | 402 | Yes | 465 | $0.02 |
| bc120771aaca05996de6 | 2026-10-24T05:08:19Z | 402 | Yes | 464 | $0.02 |
| 580dffc9d1ccd8b401ff | 2026-10-24T04:38:22Z | 402 | Yes | 758 | $0.02 |
Every record is digitally signed, so anyone can verify it. More: raw data page · free quick check (JSON)