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TELAGO Korea Execution Intelligence x402 Preflight API
x402
TELAGO Korea Execution Intelligence x402 Preflight API is a paid API for AI agents from telago-x402-discovery.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Checks whether a given URL is a valid, payable x402 endpoint before committing a micropayment for Korea execution intelligence services
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call Korea execution intelligence for AI agents: address geocoding, building access, last-meter delivery, field service, robotics and cross-border logistics.
Output
Returns a JSON object with a PAYABLE/NOT_PAYABLE verdict, a detailed breakdown of individual checks (HTTPS, reachability, public host, 402 response, amount validity, payTo address, accepted network, challenge parsing, EIP-712 domain), the HTTP status, x402 protocol version, and the selected payment parameters including asset contract address, payTo wallet, network identifier, USD amount, and atomic amount.
Example use cases
Pre-flight check for Korea delivery API
“I want to call the TELAGO last-meter delivery endpoint at https://telago-x402-discovery.vercel.app/x402/delivery — can you verify it's a valid payable x402 endpoint and tell me the network, payment amount in USDC, and the payTo wallet address before I commit?”
Validate Korea geocoding endpoint before integration
“We're building an agent that calls a Korea address geocoding API at https://telago-x402-discovery.vercel.app/x402/geocode — run a preflight check to confirm it's reachable, supports x402 version 2, and has a valid EIP-712 domain present.”
Inspect x402 challenge for robotics field service
“Check whether https://telago-x402-discovery.vercel.app/x402/robotics is a payable x402 endpoint — I need to know if the 402 challenge parses correctly, what amount in USDC it requires, and whether the Base network is configured properly.”
Technical details
Endpoint
GEThttps://telago-x402-discovery.vercel.app/x402/preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when your agent needs to confirm that a TELAGO Korea execution intelligence URL is a properly configured, payable x402 endpoint before spending USDC. It is the right choice when you want to inspect EIP-712 payment challenge details, confirm the Base network and payTo wallet, or validate API health as part of an automated agent workflow — particularly for Korea-specific logistics, geocoding, building access, field service, or robotics APIs that use x402 micropayment gating.
Side effects
- Target URL is unreachable — reachable check returns false, verdict is not PAYABLE
- Target URL does not return HTTP 402 — returns402 check fails
- EIP-712 domain missing or malformed — eip712DomainPresent check fails
- payTo address absent from 402 response — payToPresent check false
- Amount invalid or zero — amountValid check false
- Non-public or localhost host provided — publicHost check false
- URL format invalid — input validation error before any network call
- Network identifier missing from challenge — networkPresent check false
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"checks": {
"https": true,
"reachable": true,
"publicHost": true,
"returns402": true,
"amountValid": true,
"payToPresent": true,
"acceptsPresent": true,
"networkPresent": true,
"challengeParsed": true,
"eip712DomainPresent": true
},
"product": "X402_ENDPOINT_PREFLIGHT_API",
"reasons": [],
"verdict": "PAYABLE",
"httpStatus": 402,
"x402Version": 2,
"selectedAccept": {
"asset": "0x...",
"payTo": "0x...",
"network": "eip155:8453",
"amountUsd": 0.001,
"amountAtomic": "1000"
}
}
}Tags
x402
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