blockrun.ai/api/v1/messages

Anthropic-compatible Messages API — pay per token with USDC on Base

Endpoint	`https://blockrun.ai/api/v1/messages`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~72 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	0xe9030014F5DAe217d0A152f02A043567b16c1aBf
method	POST
last updated	2026-11-12T21:09:52.48Z

Use it

Call it (an x402 client pays automatically)

curl -i https://blockrun.ai/api/v1/messages
# 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-a8efd30fb200a222

Search the whole marketplace from your agent (MCP)

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