Linkup

Active

by Orthogonal

AI search API.

Search

Endpoints · 4

Base URLhttps://x402.orthogonal.com/linkup
POST/search$0.01The /search endpoint allows you to retrieve web content.
POST/fetch$0.01The /fetch endpoint allows you to fetch a single webpage from a given URL.
POST/research$1.50Creates an asynchronous research task that performs comprehensive multi-step web research. Returns a task ID immediately. Poll GET /research/:id for results.
GET/research/:id$0.001Retrieves a specific research task by ID. Use this to poll for results after creating a research task with POST /research.

Call the provider directly and settle x402 per request.

Quickstart · x402 flow

1 · Call without payment. The service replies 402

bash
curl -X POST -i https://x402.orthogonal.com/linkup/search
Response
HTTP/1.1 402 Payment Required{ "x402Version": 2,  "accepts": [{ "scheme": "exact", "network": "eip155:143",  "asset": "USDC", "maxAmountRequired": "0.01" }] }

2 · Sign the payment with your agent wallet and retry

bash
curl -X POST https://x402.orthogonal.com/linkup/search \  -H "X-PAYMENT: <base64 payment payload signed by your EOA>"
Response
HTTP/1.1 200 OK

Any EOA on Monad can pay.

Any APIs or tools listed are provided for discovery purposes only and do not constitute an endorsement or recommendation by the Monad Foundation.