> ## Documentation Index
> Fetch the complete documentation index at: https://docs.r28.ai/charter/llms.txt
> Use this file to discover all available pages before exploring further.

# research_paper_get

> Inspect metadata or read passages from a research paper.

<div className="tool-route"><span className="tool-row-method" data-method="GET">GET</span><code>{"https://api.firecrawl.dev/v2/search/research/papers/{id}"}</code></div>

```python firecrawl_research_paper_get.py theme={null}
from charter.packs import firecrawl

result = await firecrawl.research_paper_get.ainvoke({"id": ...})
```

## Path parameters

<div className="reference-table">
  | Field                                                      | Type     | Description                                                        |
  | ---------------------------------------------------------- | -------- | ------------------------------------------------------------------ |
  | `id` <span className="required" title="required">\*</span> | `string` | Paper reference: a canonical paperId or source-specific primaryId. |
</div>

## Query parameters

<div className="reference-table">
  | Field   | Type      | Description                                                                                                                                                   |
  | ------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  | `query` | `string`  | When present, returns top matching full-text passages for this question. <span className="field-constraints">min length 1</span>                              |
  | `k`     | `integer` | Passage count for read mode. Only valid when query is present. The server applies 4 when this is absent. <span className="field-constraints">≥ 1; ≤ 50</span> |
</div>