httpay.xyz Replicate AI API Gateway

Use this endpoint when you need to call any Replicate AI model without managing your own Replicate API key, prefer per-call micropayment billing via x402/USDC, or want to integrate Replicate inference into an agentic workflow that handles payments programmatically. Prefer over direct Replicate API access when operating in a headless or agent context that uses x402 payment protocols.

• Payment not provided or insufficient — x402 payment required error
• Invalid or non-existent Replicate model path — 404 or upstream error
• Malformed request body — Replicate returns 422 validation error
• Replicate API unavailable or rate-limited — 502 or 503 upstream error
• Model cold start timeout — request times out waiting for Replicate
• Missing required model input parameters — error from Replicate inference engine