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gpt55.558686.xyz tools x402-discovery-price-compare
https://gpt55.558686.xyz/v1/tools/x402-discovery-price-compare
answers 402
Fetch up to 10 x402 discovery documents or service origins, extract paid resources, normalize USDC atomic amounts, and rank resources by price, scheme, network, tags, and service metadata. This deterministic endpoint does not call an upstream model. GET variant for agents, crawlers, and wallets that prefer query parameters over a JSON body. Pay up to $0.003 per request with x402 USDC on Base.
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
- 0x1f0130669ca6fd02e025a984cc038f139df19a2f
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 433 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:11:22.393Z (22d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fgpt55.558686.xyz%2Fv1%2Ftools%2Fx402-discovery-price-compare"