# Penny Engine Outcome Guard and Agent Intelligence

POST /api/proof-gate verifies caller-supplied JSON against caller-supplied assertions and returns a SHA-256 integrity fingerprint (not a third-party attestation). Free synthetic preview: GET /demo/proof-gate.



GET /api/market-demand summarizes recent onchain settlement and buyer concentration. GET /api/route-plan?task=... discovers potentially suitable API tools by catalog prices without executing or paying them. Each request is x402 protected at $0.001 USDC.



Use this API to rank up to 50 ecommerce product pricing scenarios by estimated profit.

POST https://penny-paid-batch-production.up.railway.app/api/price-batch
Content-Type: application/json

Example:
{"scenarios":[{"id":"plan-A","price":24,"cost":9,"shipping":4,"feePct":12,"ads":1},{"id":"plan-B","price":29,"cost":11,"shipping":5,"feePct":12,"ads":2}],"targetMarginPct":25}

When active: $0.001 USDC on Base, standard x402 v2. Unpaid requests return HTTP 402; x402-compatible clients can sign and retry automatically.

Read /health to verify payment configuration and /openapi.json for schema. Results use user supplied numbers, not live marketplace data. Do not interpret responses as investment advice.