the402 endpoint detail

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api.oblique.markets paid base-usdc-balance

https://api.oblique.markets/api/v1/paid/base-usdc-balance

answers 402

Use when an agent needs base usdc balance. Returns Check a Base wallet’s USDC balance on the canonical Base USDC contract and return structured JSON with atomic and formatted values. $0.003.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.003
Network
base
Pay to
0x970007590aCC5C938cd51345B17AF51B1B40D3Ab
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
7 ms
Payment options
2 usable of 2
Last checked
2026-09-06T01:12:35.584Z (23d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.oblique.markets%2Fapi%2Fv1%2Fpaid%2Fbase-usdc-balance"