x402 Preflight

Launch diagnostics for x402 API developers

A read-only diagnostic service that checks a live x402 API endpoint's payment configuration, discovery metadata, schemas, CORS, redirects, and compatibility signals. It returns evidence of issues and prioritized fix recommendations without sending payments or forwarding credentials. Includes a free endpoint check, a $0.05 technical audit, and a $5 asynchronous diagnostic report, payable in USDC on Base via x402. Accessible via HTTP/OpenAPI and MCP.

Category: Testing & QA
Pricing: freemium
Free tier: yes
API: yes
MCP server: yes
SDK: no
Open source: no

#x402 #api-diagnostics #payments #mcp #developer-tools

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Listed 2026-10-28 · last verified 2026-10-28 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.9

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