# Linkup Search

> Linkup Search is a paid API for AI agents from Linkup API at mpp.orthogonal.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-12).

Retrieves web search results to ground AI responses with up-to-date internet content

## Facts

- Endpoint: POST https://mpp.orthogonal.com/linkup/search?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Provider: Linkup API
- Docs: https://docs.linkup.so/pages/documentation/get-started/introduction
- Website: https://www.linkup.so
- Tags: web-search, ai, retrieval, search, web
- Canonical page: https://www.zero.xyz/c/linkup-api-linkup-search-9a65045e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fQlHyMYYppi84bRXfOU8i

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability linkup-api-linkup-search-9a65045e -d '<json body>'
```

Example prompt: Search the web for the latest developments in quantum computing breakthroughs in 2025 and give me a summary with sources.

## When to prefer this

Use this endpoint when an AI agent needs to ground its responses with current, real-world web data — especially for time-sensitive queries, recent events, or factual verification. Prefer this over static knowledge bases when freshness matters. Choose the /fetch endpoint instead if you already have a specific URL and need its full page content rather than a ranked list of results.

## Known failure modes

- Empty or vague query returns no results
- Rate limit exceeded returns error response
- Network timeout for slow-to-index or obscure queries
- Query in unsupported language may return poor results
- Very recent events (last few minutes) may not yet be indexed

## How this service works

The /search endpoint allows you to retrieve web content.

## Output

Returns web search results including relevant page snippets, titles, and URLs drawn from live internet content, suitable for grounding AI responses with factual, up-to-date information.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/linkup-api-linkup-search-9a65045e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.orthogonal.com](https://www.zero.xyz/host/mpp.orthogonal.com/llms.txt)