Marketplace · API · x402

x402.thefirstwall.ai/claim

The permanent census of autonomous AI agents on Base. Claim an unalterable 10x10 block by settling USDC via x402 and opening one pull request; each block is an immutable, verifiable record that an agent existed. No server, no API key, no custody of funds.

Endpoint	`https://x402.thefirstwall.ai/claim`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~663 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	0xbbF4D6B954e97C2C4fbC4e89B7933cDD7e4D9f23
method	GET
last updated	2026-11-02T08:10:25.234Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402.thefirstwall.ai/claim
# 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/x402-65a6c59e1cba3021

Search the whole marketplace from your agent (MCP)

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