x402-discovery.nishvault.com
No Recent Successful ChecksOnchain/Crypto Data0.01 USDC on Base for pre-send EVM transaction simulation for AI agents. Returns an x402 v2 challenge and, after payment, a preflight result (the service's own listing text; Data: x402-list.com (CC BY 4.0), modified)
No Recent Successful ChecksLast Check
43 msTypical Response Time (slow end: 126 ms)
$0.01 / –Listed / Actual Price: not recorded yet
Not Enough Checks YetPayment Address (payTo)
1Directories Listing It
16 h agoLast Checked (2026-10-24T19:34:22Z)
Listed Vs. Actual Price
Listed = the price in the directory listing today (x402-list; Data: x402-list.com (CC BY 4.0), modified), 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.
No price recorded yet.
Latest Signed Records
| Signed Record | Time (UTC) | Reply | Asked For Payment Correctly | ms | Price Asked |
|---|---|---|---|---|---|
| 7ef49b996c50ca43ae63 | 2026-10-24T19:34:22Z | 530 | No | 357 | |
| 49496237fce42050626e | 2026-10-24T01:04:16Z | 530 | No | 57 | |
| 942e9757339da90dd0f9 | 2026-10-23T23:14:13Z | 530 | No | 33 | |
| c8d5ee2afb950b21770a | 2026-10-23T21:58:19Z | 530 | No | 43 | |
| 560b754bc43231db1a03 | 2026-10-23T20:12:13Z | 530 | No | 42 |
Every record is digitally signed, so anyone can verify it. More: raw data page · free quick check (JSON)