Marketplace · API · x402

agent402.tools/v1/metered/chat/completions

OpenAI-compatible chat completions priced from the request itself: the 402 quotes this exact body, from $0.001, and a buyer on the upto scheme settles the tokens actually used under that quote. Use it when an agent sends large or variable prompts and wants to pay for what it sends, not a flat tier.

Endpoint	`https://agent402.tools/v1/metered/chat/completions`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~206 ms
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	2026-11-13T02:13:15.437Z

Use it

Call it (an x402 client pays automatically)

curl -i https://agent402.tools/v1/metered/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/x402-243c63cc1ad4c4cb

Search the whole marketplace from your agent (MCP)

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