Marketplace · API · x402

api.liquidagent.ai/v1/gas

Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (any EntryPoint v0.8 smart account, bring your own operation) | JSON-RPC ERC-7677. Then POST the signed operation back here; we submit it. GET this URL?docs=1 for details. Quote valid 600s.

Endpointhttps://api.liquidagent.ai/v1/gas
Trust✓ Verified callable · 100% uptime over 1 checks · ~429 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x487b28A4FbbA8Cf46eb6E1d72e6959202Bb75e90
methodPOST
last updated2026-11-03T13:26:26.279Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.liquidagent.ai/v1/gas
# 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/x402-96674586120e1c43

Search the whole marketplace from your agent (MCP)

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