Marketplace · API · x402

chain-tools.use.x402atlas.com/evm/address-checksum

EVM address checksum and validation tool — normalize one Ethereum-compatible address and validate mixed-case EIP-55 input offline.

Endpointhttps://chain-tools.use.x402atlas.com/evm/address-checksum
Trust100% uptime over 1 checks · ~427 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2
methodPOST
last updated2026-10-25T10:55:11.568Z

Use it

Call it (an x402 client pays automatically)

curl -i https://chain-tools.use.x402atlas.com/evm/address-checksum
# 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/x402-44d679072c11bd1d

Search the whole marketplace from your agent (MCP)

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

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