<!-- source: https://docs.redpine.ai/docs/api-reference/search/listCollectionJournals -->
# List the journals your key can reach in a collection

> Free. Journals present in your scope of the collection, ranked by h-index (each with its journal_metric.impact_factor, an impact factor computed by Redpine from OpenAlex citation data with the JIF formula. It is not Clarivate's Journal Impact Factor. Journals that publish many news items, letters and editorials (for example BMJ, JAMA, The Lancet) score far below their JCR figure, because OpenAlex classifies those items as articles.), or with `topic` by the relevant content each journal holds on it. Only journals anchored to the metrics table count as proved; sampled, title-only and unresolved entries are reported beside the total. Each journal carries the ISSNs to filter a search on.

`GET` `https://api.redpine.ai/api/v1/search/collections/{name}/journals`

## Authentication

```
Authorization: Bearer sk_live_YOUR_API_KEY
```

## Path parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `name` | string | yes | Collection name. |

## Query parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `topic` | string | no | Rank journals by their relevant content on this topic. |
| `publisher` | string | no | Narrow to one publisher. |
| `min_h_index` | integer | no | Minimum h-index. |
| `limit` | integer | no | Journals per page. |
| `offset` | integer | no | Rank of the first journal to return, zero-based. |

## Responses

| Status | Description |
|---|---|
| `200` | The catalogue answer |
| `401` | Missing or invalid API key |
| `403` | API key does not have access to the collection |
| `404` | Collection not found |
| `503` | The answer could not be recorded or the index is unavailable; retry |

### 200 response fields

| Field | Type | Required | Description |
|---|---|---|---|
| `callout` | object | no | Set when there is a notice (today: add a payment method to unlock licensed journals). |
| `intent` | `sources` \| `publishers` \| `journals` | yes | Which catalogue question was answered |
| `metricsNote` | string | no | How to read the h-index and IF figures; set whenever metrics are shown |
| `nextActions` | object[] | no |  |
| `queryId` | string | yes | Audit reference (disc_…) |
| `scopes` | object[] | no | One block per collection |
| `text` | string | yes | Pre-rendered text form (what MCP shows) |
| `topic` | string | no | Topic, for a topic-scoped journals answer |