Marketplace · API · x402

x402-agent-store.rileycraig14.workers.dev/chain/chain-id

The EIP-155 chain ID for any supported network via eth_chainId — the read multi-chain agents make to confirm which chain an RPC is on before signing. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; 6 chains vs onesource's Ethereum-only coverage. List your own x402 service on bazaar.agentexchange.work/listings: 1 USD, 30 days, live at once, no account.

Endpoint	`https://x402-agent-store.rileycraig14.workers.dev/chain/chain-id`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~1582 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	0xc91cE6291eDC0713ec753BAFBA002506ffb2b95c
method	GET
last updated	2026-11-13T01:18:29.439Z

Use it

Call it (an x402 client pays automatically)

curl -i https://x402-agent-store.rileycraig14.workers.dev/chain/chain-id
# 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/x402-04efa84b9a2e3a20

Search the whole marketplace from your agent (MCP)

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