Marketplace · API · x402

flat-rate-llm.kikoribera03.workers.dev/v1/evm/balance

Use when an agent has to decide whether a wallet can pay before building a transaction: the native coin balance (ETH, MATIC...) of any address on Base, Ethereum, Polygon, Arbitrum or Optimism, returned both as wei (exact integer string) and as ether, with the chain it was read on. Do not use for token balances (/v1/evm/erc20-balance) or for a whole-wallet view (/v1/evm/portfolio). Flat price, no rate limits, no API key, no account.

Endpointhttps://flat-rate-llm.kikoribera03.workers.dev/v1/evm/balance
Trust✓ Verified callable · 100% uptime over 1 checks · ~255 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff
methodGET
last updated2026-11-05T19:06:22.431Z

Use it

Call it (an x402 client pays automatically)

curl -i https://flat-rate-llm.kikoribera03.workers.dev/v1/evm/balance
# 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/x402-3196774102fa41bf

Search the whole marketplace from your agent (MCP)

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

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