# youtube.playlist_info

**stable** **Standard** **may need a pack**

YouTube playlist metadata: title, owner, video count, views, thumbnail.

`GET /v1/youtube/playlist_info`

> [!NOTE] **May need a pack.** Free credits use only the open fetch path; the fallback path behind it needs a purchased pack and a verified email. See [pricing](https://onekey.dev/pricing).

## What you get

One YouTube record in Onekey's unified shape, in `data`. If the record does not exist you get a `404 not_found` and are not charged.

## What it costs

- **Standard · 1 credit** for a fresh fetch, charged only when it succeeds.
- **Free when served from cache (0.2 credit for a cached response over 100 KB).**
- **Free** if the request is invalid (never charged) or the source fails or reports not found (refunded).

## Parameters

| Name | Type | Required | Default | What it is | Constraints |
| --- | --- | --- | --- | --- | --- |
| `playlist_id` | string | yes | (required) | YouTube playlist id (PL...) | max 44 chars; must match `(?:PL\|UU\|OL\|LL\|FL\|RD)[A-Za-z0-9_\-]{10,40}`; trimmed |

## Request

```bash
curl "https://api.onekey.dev/v1/youtube/playlist_info?playlist_id=PLi-epCWqWTgKjhTGZVkmN3OLBRQG2mt2W" \
  -H "x-api-key: YOUR_API_KEY"
```

```python
import requests

res = requests.get(
    "https://api.onekey.dev/v1/youtube/playlist_info",
    params={"playlist_id": "PLi-epCWqWTgKjhTGZVkmN3OLBRQG2mt2W"},
    headers={"x-api-key": "YOUR_API_KEY"},
)
body = res.json()

if body["success"]:
    print(body["data"])
else:
    print(body["error"]["code"], body["error"]["message"])
```

```javascript
const params = new URLSearchParams({ playlist_id: "PLi-epCWqWTgKjhTGZVkmN3OLBRQG2mt2W" });
const res = await fetch(`https://api.onekey.dev/v1/youtube/playlist_info?${params}`, {
  headers: { "x-api-key": "YOUR_API_KEY" },
});
const body = await res.json();

if (body.success) console.log(body.data);
else console.error(body.error.code, body.error.message);
```

## Recorded response

A real YouTube response, recorded and returned in Onekey's shape. Fields the platform does not provide are `null`.

```json
{
  "success": true,
  "data": {
    "content": {
      "url": "http://www.youtube.com/playlist?list=PLi-epCWqWTgKjhTGZVkmN3OLBRQG2mt2W",
      "title": "Bollywood Lofi Love Songs",
      "text": ""
    },
    "author": {
      "displayName": "by SunnyxClub"
    },
    "ext": {
      "videosText": "31 videos",
      "viewsText": "4,186,889 views"
    },
    "media": {
      "thumbnailUrl": "https://i.ytimg.com/vi/U5ewn_HTZaM/hqdefault.jpg?sqp=-oaymwEXCOADEI4CSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLBeSrfQWf6d7ntbWx_YIGiDEGWo1A&days_since_epoch=20724"
    }
  },
  "metadata": {
    "platform": "youtube",
    "endpoint": "playlist_info",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 1,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}
```

## Field mapping

How this endpoint's source fields become Onekey's [unified schema](https://onekey.dev/docs/schema.md). Fields the source lacks come back as `null`.

| Source path | Onekey field | Transform |
| --- | --- | --- |
| `microformat.microformatDataRenderer.urlCanonical` | `content.url` | `safeUrl` |
| `header.pageHeaderRenderer.pageTitle` | `content.title` | - |
| `microformat.microformatDataRenderer.description` | `content.text` | - |
| `header.pageHeaderRenderer.content.pageHeaderViewModel.metadata.contentMetadataViewModel.metadataRows.0.metadataParts.0.avatarStack.avatarStackViewModel.text.content` | `author.displayName` | - |
| `header.pageHeaderRenderer.content.pageHeaderViewModel.metadata.contentMetadataViewModel.metadataRows.1.metadataParts.1.text.content` | `ext.videosText` | - |
| `header.pageHeaderRenderer.content.pageHeaderViewModel.metadata.contentMetadataViewModel.metadataRows.1.metadataParts.2.text.content` | `ext.viewsText` | - |
| `microformat.microformatDataRenderer.thumbnail.thumbnails.0.url` | `media.thumbnailUrl` | `safeUrl` |

## Caching and freshness

- Fresh for about 30 minutes. Repeat calls in that window are served from cache and are free.
- Between 30 minutes and 6 hours the cached copy is still served instantly and marked `stale: true` while Onekey refreshes it in the background.
- If the source is down when a refresh is needed, the last copy can be served for up to 1 day more (marked stale).
- A "not found" is remembered for 5 minutes and is free.
- The cache is shared across all customers, which is what keeps repeat calls cheap.

## What can go wrong

| Status | Code | What to do |
| --- | --- | --- |
| 401 | `unauthorized` | Check the `x-api-key` header. |
| 402 | `insufficient_credits` | [Add credits](https://onekey.dev/pricing); your balance must cover the price. |
| 404 | `not_found` | That record does not exist. Free; do not retry. |
| 422 | `invalid_params` | Fix the parameters using the table above. Free. |
| 429 | `rate_limited` | Wait `Retry-After` seconds, then retry. |
| 502 | `upstream_error` | The source failed. Refunded; retry with backoff. |

See [Errors](https://onekey.dev/docs/errors.md) for the full list and retry guidance.

Status: stable (verified against the live source).