machinemint-native-x402-production.up.railway.app
LiveOnchain/Crypto DataCheck an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and (the service's own listing text)
17/17Recent Test Calls That Worked
213 msTypical Response Time (slow end: 510 ms)
$0.01 / $0.01Listed / Actual Price: match
Same AddressPayment Address (payTo): the same on all 15 checks of the main route
3Directories Listing It
57 s agoLast Checked (2026-10-24T09:03:03Z). Quick check: a signed record is saved only when something changes; last signed record 13 min ago
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 | $0.01 | $0.01 | Matches Listing |
Latest Signed Records
| Signed Record | Time (UTC) | Reply | Asked For Payment Correctly | ms | Price Asked |
|---|---|---|---|---|---|
| 1289e73309a392cc2cad | 2026-10-24T08:50:40Z | 402 | Yes | 510 | $0.01 |
| 011502705f5af700bd8b | 2026-10-24T08:02:21Z | 402 | Yes | 244 | $0.01 |
| f0acab23055737d297ba | 2026-10-24T07:32:21Z | 402 | Yes | 358 | $0.01 |
| ddfd4bf42169d91c6700 | 2026-10-24T07:02:22Z | 402 | Yes | 32 | $0.01 |
| 074233fc7171827767f3 | 2026-10-24T06:32:19Z | 402 | Yes | 110 | $0.01 |
Every record is digitally signed, so anyone can verify it. More: raw data page · free quick check (JSON)