Marketplace · API · x402

base-gas-x402-production.up.railway.app/gas/compare

What the same transaction costs right now on Base, Optimism, Arbitrum and Ethereum, in USD, cheapest chain first.

Endpointhttps://base-gas-x402-production.up.railway.app/gas/compare
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x0D083590c048A243e24a75E3a7C968145DE25B44
methodGET
last updated2026-10-27T10:03:57.973Z

Use it

Call it (an x402 client pays automatically)

curl -i https://base-gas-x402-production.up.railway.app/gas/compare
# 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/x402-28a996df3bcb466e

Search the whole marketplace from your agent (MCP)

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

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