Marketplace · API · x402

keyless.run/smart/v1/chat/completions

LLM chat completion with no API key or signup (Claude Haiku class, anthropic/claude-haiku-4.5). OpenAI-compatible: set your SDK base URL to https://keyless.run/smart/v1. Flat $0.01 per call, up to 1000 output tokens. Charged only on success.

Endpoint	`https://keyless.run/smart/v1/chat/completions`
Trust	100% uptime over 1 checks · ~181 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	0xa6fA8EB68b7c11Db10177B99dFC9ABc058de513f
method	POST
last updated	2026-10-19T12:04:08.094Z

Use it

Call it (an x402 client pays automatically)

curl -i https://keyless.run/smart/v1/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-c2421ef66c2bfb09

Search the whole marketplace from your agent (MCP)

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