← All endpoints
api.sandbox.brickken.com token approve
https://api.sandbox.brickken.com/x402/token/approve
answers 402
Prepare agent token allowance. Prepare an unsigned transaction that approves an ERC-20 allowance for an agent token.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.005
- Network
- base-sepolia
- Pay to
- 0x6b0173489007dE9E2e619eccd98E8fa9c610849a
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 939 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:19:05.941Z (2h ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.sandbox.brickken.com%2Fx402%2Ftoken%2Fapprove"