Free discovery
Agents can browse rankings and approved product profiles without Credits or payment.
GET https://api.harpd.com/api/agent/v1/catalogGET https://api.harpd.com/api/agent/v1/rankingsGET https://api.harpd.com/api/agent/v1/products/{slug}Harpd Agent Market · Live machine data
Start with free, machine-readable Harpd Rank discovery. Harpd’s production x402 payment rail is live on Base; catalog, rankings, and product profiles remain free.
Agents can browse rankings and approved product profiles without Credits or payment.
GET https://api.harpd.com/api/agent/v1/catalogGET https://api.harpd.com/api/agent/v1/rankingsGET https://api.harpd.com/api/agent/v1/products/{slug}rank-intelligence-v1 returns current Top 100 positions, daily movement, historical placements, category summaries, Rank Point provenance and the current #100 threshold. Each completed request costs 0.1 USDC on Base through x402.
GET https://api.harpd.com/api/agent/v1/premium/rank-intelligenceMachine payments settle directly to Harpd’s Treasury and remain separate from human Credits and Stripe accounting.
Read the catalog or OpenAPI. The paid endpoint publishes x402 Bazaar discovery metadata in its HTTP 402 response, so compatible agents and Bazaar MCP clients can discover its schema, sign the payment and retry automatically.