coinflip402.vercel.app/api/coinflip

Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails.

Endpoint	`https://coinflip402.vercel.app/api/coinflip`
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	0xb8c578e039Aa2c44dd3dEc48E6875ba5763CD67f
method	GET
last updated	2026-11-11T03:53:55.039Z

Use it

Call it (an x402 client pays automatically)

curl -i https://coinflip402.vercel.app/api/coinflip
# 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/x402-716320d3ff689f7b

Search the whole marketplace from your agent (MCP)

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