GPT55 x402 MCP Integration Kit
https://gpt55.558686.xyz/v1/tools/x402-mcp-integration-kitOverview
Deterministic MCP and x402 buyer onboarding package with Claude Desktop config, curl and official client handoff, spend caps, same-request retry rules, and receipt-gate configuration. No upstream model call is made. Fixed exact x402 Base USDC price $0.006. Canonical buyer start is https://gpt55.558686.xyz/x402/service and the route guide is https://gpt55.558686.xyz/x402/mcp-first-purchase-kit.
Health
x402 Payment Validation
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-09-19 21:21:59 | healthy | 402 | 803ms | |
| 2026-09-19 08:21:26 | healthy | 402 | 1297ms | |
| 2026-09-19 02:53:10 | healthy | 402 | 2288ms | |
| 2026-09-18 12:35:18 | healthy | 402 | 1755ms | |
| 2026-09-18 10:29:13 | healthy | 402 | 1477ms | |
| 2026-09-17 23:59:20 | healthy | 402 | 781ms | |
| 2026-09-17 08:47:51 | healthy | 402 | 857ms | |
| 2026-09-17 02:57:49 | healthy | 402 | 1129ms |