the402 endpoint detail

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agent402.co.uk utils cost-estimate

https://agent402.co.uk/v1/utils/cost-estimate

answers 402

Cost estimate for x402 tool budgets: N×price_per_call vs batch_price. Decide sequential vs batch before spending USDC. Not an LLM token counter. Search: cost estimate batch pricing tool-call budget.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.001
Network
base
Pay to
0x9EF92b278a3867C429751390EC427736eB4BABB2
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
302 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:26:38.963Z (1h ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.co.uk%2Fv1%2Futils%2Fcost-estimate"