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gpt55.558686.xyz v1 x402-ping
https://gpt55.558686.xyz/v1/x402-ping
answers 402
Paid x402 capability check for this GPT-5.6 Luna gateway. GET version for agents, crawlers, and wallets that prefer a simple no-body settlement proof. This endpoint settles a small x402 payment and returns service metadata without calling the upstream model.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.002
- Network
- base
- Pay to
- 0x1f0130669ca6fd02e025a984cc038f139df19a2f
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 567 ms
- Payment options
- 3 usable of 3
- Last checked
- 2026-08-15T14:22:44.902Z (1h ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fgpt55.558686.xyz%2Fv1%2Fx402-ping"