Video Subtitles
/video/subtitlesAccess YouTube data through superagnt: Video Subtitles. Get the available subtitles of a Youtube Video. Responses are structured JSON for AI agents, analytics, and automation — one API key instead of juggling upstream accounts. Ideal when you need video metadata, channel discovery, comments, subtitles, and recommendations programmatically.
Call it over REST
Authenticate with a bearer token against https://api.superagnt.com. Swap the placeholders for your key and parameter values.
curl -s "https://api.superagnt.com/video/subtitles?video_id=<video_id>" \
-H "Authorization: Bearer <YOUR_AGNTDATA_API_KEY>"Copy-paste prompt
Paste this into a coding agent. It connects the superagnt MCP server, finds the tool data_youtube_video_subtitles, and runs a first call — with the REST fallback if MCP is unavailable.
You are wiring up the superagnt "YouTube" API to use this endpoint: Video Subtitles.
1. CONNECT over MCP (preferred). No token to paste either way.
On Claude (claude.ai, the desktop app, or Claude Code signed in with a Claude
account), the server is a connector: give the user this link, they click Add
and approve:
https://claude.ai/customize/connectors/yours?modal=add-custom-connector&connectorName=superagnt&connectorUrl=https%3A%2F%2Fmcp.superagnt.com%2Fmcp&open_in_browser=1
Any other MCP client (or Claude Code signed in with an API key): add the server
and let the client run the browser sign-in:
claude mcp add --scope user --transport http superagnt https://mcp.superagnt.com/mcp
claude mcp login superagnt
MCP endpoint: https://mcp.superagnt.com/mcp
After connecting, the tool you want is named exactly:
data_youtube_video_subtitles
Call agnt_tools_search or agnt_tools_list_enabled to confirm it is available.
2. REST fallback (if you are not using MCP):
GET https://api.superagnt.com/video/subtitles
Header: Authorization: Bearer <YOUR_AGNTDATA_API_KEY>
Required parameters:
- video_id (string, required)
Optional parameters:
- (none)
3. COST & KEY. Each successful call costs $0.003 in credits. Only successful calls are charged.
Get a superagnt API key at https://app.superagnt.com.
4. TEST. Connect the server (or set the key), discover the tool
(data_youtube_video_subtitles), run one minimal call with just the required parameters,
and report back the shape of the JSON response (top-level fields).
Reference (machine-readable variant): https://www.superagnt.com/docs/apis/social/youtube/endpoints/Video_Subtitles.md{
"name": "video_subtitles",
"description": "Get the available subtitles of a Youtube Video",
"parameters": {
"type": "object",
"properties": {
"video_id": {
"type": "string",
"description": "query parameter",
"default": "PuQFESk0BrA"
}
},
"required": [
"video_id"
]
}
}| Name | In | Type | Required | Description |
|---|---|---|---|---|
video_id | query | string | required |
Response
{
"title": "VideoCaptions",
"type": "object",
"properties": {
"lang": {
"title": "Lang",
"type": "string"
},
"is_available": {
"title": "Is Available",
"type": "boolean",
"default": false
},
"subtitles": {
"title": "Subtitles",
"type": "array",
"items": {
"title": "Subtitle",
"type": "object",
"properties": {
"id": {
"title": "Id",
"type": "integer"
},
"start": {
"title": "Start",
"type": "number"
},
"duration": {
"title": "Duration",
"type": "number"
},
"text": {
"title": "Text",
"type": "string"
}
}
}
}
},
"description": "Schema Class for a Youtube video captions"
}Credits are deducted from your superagnt balance on each successful call. Failed requests (4xx/5xx) are not charged.
Get started at app.superagnt.com.
start calling
Point your client at https://mcp.superagnt.com/mcp and your agent has this endpoint, plus every other source on one balance.