Enable HTTP 402 Payment Required for pay-per-use access (no account/API key). Instant settlement (USDC, etc.), zero protocol fee. Great for AI agents: buy premium data on-demand or charge per inference.

Roles in this project: unlock third-party data via x402 → retry/continue; monetize agent calls via per-call credits.

High-Level Architecture

• Clients → API Gateway (x402 middleware)
• Services: learning · chartsage · pulsescout · x402-service
• Data: ClickHouse/Timescale · Redis · Object storage
• Schedulers: scans & hourly updates
• Observability: OpenTelemetry + Grafana