Documentation Index
Fetch the complete documentation index at: https://docs.linkup.so/llms.txt
Use this file to discover all available pages before exploring further.
Billing
When you first sign up, your account is automatically credited with $20. We will top up your credits back to $20 each month. You can add money to your account in the Billing section of the Linkup app.
If you top up your account with $1,000 or more, we will add free credits to your account.
Search endpoint
For the Search endpoint, the cost depends on both the depth and outputType parameters. "sourcedAnswer" and "structured" invoke an LLM to compose or shape the response and carry a small premium over raw "searchResults".
depth | outputType | Cost |
|---|
"fast" (beta) / "standard" | "searchResults" | $0.005 |
"fast" (beta) / "standard" | "sourcedAnswer" / "structured" | $0.006 |
"deep" | "searchResults" | $0.05 |
"deep" | "sourcedAnswer" / "structured" | $0.055 |
Fetch endpoint
For the Fetch endpoint, the cost depends on the renderJs parameter:
| Call Type | Cost |
|---|
Without JS (renderJs: false) | $0.001 |
With JS (renderJs: true) | $0.005 |
Research endpoint
For the Research endpoint, the cost depends on the reasoningDepth parameter:
| Call Type | Cost |
|---|
"S" | $0.25 |
"M" | $0.50 |
"L" | $1.50 |
"XL" | $2.50 |
Tasks endpoint
Each task is billed exactly like a direct Search, Fetch, or Research call.
x402 payment protocol
You can also pay per request using the x402 protocol with USDC on Base — no account needed. x402 pricing follows the same per-request costs listed above. A minimum charge of $0.01 per request applies.
| Payment Method | Currency | Billing |
|---|
| API Key | USD | Prepaid credit balance |
| x402 | USD (USDC) | Per-request on-chain settlement |
Important note: No credit is subtracted when an error occurs, whether that is due to a missing parameter, an internal server error, or because we were unable to find anything relevant to your query.
429 HTTP error.
You can view your current consumption in the Billing section of the Linkup app.
