Marketplace · API · x402

api.ai-open-models.com/v1/auto/chat/completions

Routes requests across open-weight models using task fit, tool calling, vision, JSON format, context, output capacity, provider availability, and price. Send POST application/json with model set to ai-open-models/auto and a non-empty messages array. task_type is optional; when omitted, Auto classifies the request. Supports function tools, JSON responses, and mixed text/image messages using public HTTPS image URLs or base64 data URIs. Multipart uploads and streaming are not supported.

Endpointhttps://api.ai-open-models.com/v1/auto/chat/completions
Trust100% uptime over 1 checks · ~224 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xdcdf184A64f6489Ec5304750a0AF157440115caE
methodPOST
last updated2026-10-15T09:06:17.156Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.ai-open-models.com/v1/auto/chat/completions
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-e3cfb222ab0a1d1d

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

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