> For clean Markdown of any page, append `.md` to the page URL.
> Documentation index: https://you.com/docs/llms.txt (section indexes: append `/llms.txt` to any section URL).
> Search these docs: Docs MCP at https://you.com/docs/_mcp/server (`searchDocs`, no API key).
> Call live You.com APIs: Product MCP at https://api.you.com/mcp (keyless `?profile=free` exposes `you-search` and `you-discover`. Research and finance use `/mcp/research`, `/mcp/finance`, or `?tools=` on `/mcp`). To pick an API or integration path, call `you-discover` on that server instead of guessing.
> OpenAPI: https://you.com/docs/openapi.json—auth header `X-API-Key`, env `YDC_API_KEY`.

## Knowledge for POST /v1/search

`POST /v1/search` now accepts `"knowledge": "core"`, which queries licensed data providers in parallel with the web index and returns matching records in `results.knowledge`. Coverage spans stocks, prices and rates, macroeconomics, company data, sports, politics and government, and weather and climate.

Each knowledge result carries a `title`, a `description` holding the value, an `attribution` array naming the data provider, and an optional `as_of` date. Up to 25 results come back, limited to those relevant to the query. When none are relevant, `results.knowledge` is omitted and the response contains web and news results only.

On the [VerticalRTK fast set](https://github.com/TakoData/VerticalRTK/blob/main/data/verticalrtk_fast.jsonl) benchmark, accuracy rose from 64.5% (Web Search API with highlights) to 84.2% (with highlights and Knowledge).

Knowledge is included in the base Web Search API rate of \$5.00 per 1,000 calls. It is available on `POST /v1/search` only, and existing requests are unaffected until they set the parameter.

Read the Knowledge guide