Marketplace · API · x402

agent402.tools/v1/nano/chat/completions

OpenAI-compatible chat completions, nano tier: gpt-6-luna (the default), gpt-5.6-luna, claude haiku 5.5, gemini flash-lite, small llama/ministral, deepseek v4.1 flash, deepseek-chat - $0.003 per call in USDC over x402, priced for high-frequency agent loops.

Endpoint	`https://agent402.tools/v1/nano/chat/completions`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
method	POST
last updated	2026-11-13T19:43:18.598Z

Use it

Call it (an x402 client pays automatically)

curl -i https://agent402.tools/v1/nano/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/x402-55a18f58c73d3c50

Search the whole marketplace from your agent (MCP)

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