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ai-data-marketplace-1042299154756.us-central1.run.app v1 transaction_preflight
https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/transaction_preflight
answers 402
Run a transaction simulation and EVM safety preflight with gas, destination proxy evidence, and optional token security and allowance checks in one decision-ready report.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.005
- Network
- base
- Pay to
- 0x8647F7D7a1368a467Ad1FF757fBc2e7167973558
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 70 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:26:17.417Z (1h ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fai-data-marketplace-1042299154756.us-central1.run.app%2Fapi%2Fv1%2Ftransaction_preflight"