machinemint-native-x402-production.up.railway.app
answeringCheck an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimited approvals and suspicious transaction shapes, and returns PASS, REVIEW, or FAIL. Never signs or broadcasts.
- Endpoint
- https://machinemint-native-x402-production.up.railway.app/v1/base-preflight
- Price
- $0.01 / call
- Settles via
- cdp
- Category
- —
- Last seen live
- Tue, 08 Sep 2026 05:24:44 UTC
- Last probed
- Tue, 08 Sep 2026 05:24:44 UTC
- First indexed
- Tue, 08 Sep 2026 05:22:25 UTC
- Sources
- cdp-x402
Probe history
Last 1 probes, newest on the right. 100% answered with a payment challenge.
| When | Result | Method | Status | Latency |
|---|---|---|---|---|
| Tue, 08 Sep 2026 05:24:44 UTC | challenge | http-402 | 402 | 670 ms |
JSON: /api/v1/services/machinemint-native-x402-production.up.railway.app. Own this service? Update the listing.