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rpc.nodeflare.app simulate x402
https://rpc.nodeflare.app/data/simulate/x402
payable
Transaction pre-flight: will it revert (and why), gas, and which tokens/ETH move - before you send. Built for agents.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.002
- Network
- base
- Pay to
- 0x9d86e0e74333b297b1d0b6ba30d2ed1b5f01f296
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 151 ms
- Payment options
- 6 usable of 6
- Last checked
- 2026-08-10T09:11:01.578Z (2d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Frpc.nodeflare.app%2Fdata%2Fsimulate%2Fx402"