# Dolihi Preflight

Diagnose a public HTTPS JSON API before integration: access, HTTP method, response format, required fields, JSON Pointer types, bounded JSON schema and advertised payment requirements. Also supports supplied sample path/type drift, declared OpenAPI response changes, duplicate JSON keys, UTF-8 CSV column/type checks and actionable findings. Returns evidence and a next step. Does not pay the inspected API or verify settlement. No semantic or full compatibility certification.

POST /v1/preflight: free pilot; individually assigned Bearer key.
POST /v1/preflight/paid: x402 v2; 0.02 USDC on Base per diagnosis.
GET /v1/schema: input contract. GET /.well-known/x402: catalog.
GET /products/api-regression: prepaid 24-hour package, availability, input schema and private report retrieval.
Only public IPv4 HTTPS:443, no credentials, no redirects. Inspected targets are GET-only; POST and request bodies are rejected.
No upstream purchases, uptime certification, full schema or semantic correctness check.