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animica.dev tx preflight
https://animica.dev/x402/tx/preflight
answers 402
Find out why an Animica transaction would be rejected BEFORE you broadcast it. Decodes your canonical CBOR {body, sigs} envelope, returns the normalised fields and the CANONICAL HASH you are about to sign, then asks the node whether it would admit the transaction and why not. Both calls are read-only: nothing is inserted into the mempool and nothing is broadcast. Built for people writing Animica s
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.0018
- Network
- base
- Pay to
- 0x5D17c40FD6b119dc6006C4Ab3C20a917FCaB2aCD
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 2736 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:17:22.996Z (2h ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fanimica.dev%2Fx402%2Ftx%2Fpreflight"