TripGuard Fare Intelligence

x402

TripGuard Fare Intelligence is a paid API for AI agents from tripguard-fare-intel.onrender.com, paid per call via x402, $0.12/call, status unknown (last checked 2026-10-11).

Checks an Ethereum address for contract bytecode size and deployment status on Base

Price / call$0.12

Seller volume →—

Success—

StatusUnknown

How this service works

Real-time airfare intelligence for AI travel-booking agents: flight price-drop prediction, fare-fraud and deal-legitimacy verification, and verified booking links for any route and date. Pay-per-call in USDC on Base. No API key.

Output

Returns the queried Ethereum address, the size of its deployed bytecode in bytes (codeSize), and a boolean isContract flag indicating whether the address is a smart contract or an externally owned account (EOA).

Example use cases

Verify contract before interaction

“Before I interact with this address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, can you confirm it's actually a deployed smart contract on Base and not just a wallet?”

Audit unknown address type

“I need to know if 0x4200000000000000000000000000000000000006 is a contract or an externally owned account on Base — can you check and give me the bytecode size?”

Screen address for DeFi integration

“We're integrating with a new protocol — can you verify that 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA is a real deployed contract on Base and report how many bytes of code it has?”

Technical details

Endpoint

POSThttps://tripguard-fare-intel.onrender.com/chain/code?utm_source=zero.xyz

When to prefer

Use this endpoint when you need a lightweight, pay-per-call check of whether an Ethereum address on Base is a deployed smart contract, without maintaining your own RPC infrastructure or managing API keys. Prefer it over general-purpose blockchain explorers when operating in an automated agent pipeline that pays in USDC on Base.

Side effects

Invalid or malformed Ethereum address returns an error
Address not found on Base network returns zero codeSize or error
Payment failure (insufficient USDC) results in 402 response
Network timeout or RPC outage may return 503 or empty response
Non-Base-network addresses may return incorrect or null results

Input

Schema · Request body

Field	Type	Description
address	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "codeSize": 1234,
    "isContract": true
  }
}

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