Use when YouTube data is needed without Google API quotas or OAuth setup: transcripts, video metadata, channel info, search results, playlists. Triggers on pasted YouTube links, creator names, @handles, topic research, video summaries, channel browsing, or any request where YouTube content would help — even if not mentioned explicitly. Not for uploads, account management, or written-source-only research.
把这段话发给 Claude Code、Codex 或 Cursor。智能体会先检查安全性，你确认后才安装。
读取 https://funcoding.ai/skills/zeropointrepo/youtube-skills/skills-youtube-api/install.md ，按里面的步骤帮我安装这个 Skill。
YouTube data access via TranscriptAPI.com — no Google API quota needed.
If $TRANSCRIPT_API_KEY is not set, read references/auth-setup.md and follow the instructions there to get and store the key.
Every request needs two headers:
Bearer $TRANSCRIPT_API_KEYHermesAgent/0.11.0, ClaudeCode/1.0). Version is optional — agent name alone is fine. Do not omit this header or send a bare default — Cloudflare will return a 403 (error code 1010) and block the request.Full OpenAPI spec: transcriptapi.com/openapi.json — consult this for the latest parameters and schemas.
All endpoints: https://transcriptapi.com/api/v2/youtube/...
Channel endpoints accept channel — an @handle, channel URL, or UC... ID. Playlist endpoints accept playlist — a playlist URL or ID.
| Endpoint | Method | Cost |
|---|---|---|
/info?video_url=ID | GET | free |
/video/metadata?video_url=ID | GET | 1 |
/transcript?video_url=ID | GET | 1 |
/search?q=QUERY&type=video | GET | 1 |
/channel/resolve?input=@handle | GET | free |
/channel/info?channel=@handle | GET | 1 |
/channel/latest?channel=@handle | GET | free |
/channel/videos?channel=@handle | GET | 1/page |
/channel/search?channel=@handle&q=Q | GET | 1 |
/channel/playlists?channel=@handle | GET | 1/page |
/channel/posts?channel=@handle | GET | 1/page |
/channel/sections?channel=@handle | GET | 1 |
/playlist/videos?playlist=PL_ID | GET | 1/page |
search also takes type=playlist or type=movie, plus first-page-only filters sort (relevance/views), upload_date, duration, and features. channel/videos takes tab=videos (default), shorts, or streams, plus an optional sort (latest/popular/oldest).
Naming:
/video/metadatawas previously/video/info. The old path still works but is deprecated — use/video/metadata.
Search videos:
GET https://transcriptapi.com/api/v2/youtube/search?q=python+tutorial&type=video&limit=10
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
Get transcript:
GET https://transcriptapi.com/api/v2/youtube/transcript?video_url=dQw4w9WgXcQ&format=text&include_timestamp=true&send_metadata=true
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
Check video info & transcript languages (free, before spending a credit):
GET https://transcriptapi.com/api/v2/youtube/info?video_url=dQw4w9WgXcQ
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
Get rich video metadata (views, likes, description, tags):
GET https://transcriptapi.com/api/v2/youtube/video/metadata?video_url=dQw4w9WgXcQ&include=details
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
Get a channel's profile (subscriber count, tags, tabs):
GET https://transcriptapi.com/api/v2/youtube/channel/info?channel=@TED
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
Also available with the same channel parameter: /channel/playlists (a channel's playlists), /channel/posts (community tab), and /channel/sections (its curated Home-page shelves).
Resolve channel handle (free):
GET https://transcriptapi.com/api/v2/youtube/channel/resolve?input=@TED
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
Latest videos (free):
GET https://transcriptapi.com/api/v2/youtube/channel/latest?channel=@TED
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
Browse channel uploads (paginated):
GET https://transcriptapi.com/api/v2/youtube/channel/videos?channel=@NASA
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
# Most-viewed first (channel Videos tab, ~30 per page)
GET https://transcriptapi.com/api/v2/youtube/channel/videos?channel=@NASA&sort=popular
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
# Use continuation token from response for next pages, repeating the same tab and sort
Sorting. Add sort=latest, popular, or oldest to channel/videos to get a channel's videos in the order you want, for example its most-popular uploads first. A sorted page returns about 30 videos (an unsorted page returns about 100), and every page costs the same 1 credit.
When paging, send the same sort on each request.
Item fields. Every item carries members_only, true only when YouTube badges it "Members only", and those items have no viewCountText. tab=streams items carry lengthText and publishedTimeText (for example Streamed 2 years ago); tab=shorts returns null for both, because YouTube's Shorts grid publishes neither. On the channel-tab feeds (tab=videos with sort, tab=shorts, tab=streams) channelId, channelTitle, channelHandle and index are null.
Browse playlist (paginated):
GET https://transcriptapi.com/api/v2/youtube/playlist/videos?playlist=PL_PLAYLIST_ID
Authorization: Bearer $TRANSCRIPT_API_KEY
User-Agent: YourAgent/1.0
| Field | Rule |
|---|---|
channel | @handle, channel URL, or UC... ID |
playlist | Playlist URL or ID (PL/UU/LL/FL/OL prefix) |
q (search) | 1-200 chars |
type (search) | video (default), channel, playlist, movie |
tab (channel/videos) | videos (default), shorts, streams |
sort (channel/videos) | latest, popular, oldest (omit for the uploads feed) |
tab (channel/sections) | featured (default), podcasts, releases |
include (video/metadata) | details, related (comma-separated) |
limit | 1-50 |
continuation | non-empty string |
| Google YouTube Data API | TranscriptAPI | |
|---|---|---|
| Quota | 10,000 units/day (100 searches) | Credit-based, no daily cap |
| Setup | OAuth + API key + project | Single API key |
| Transcripts | Not available | Core feature |
| Pricing | $0.0015/unit overage | $5/1000 credits |
| Code | Meaning | Action |
|---|---|---|
| 401 | Bad API key | Check key |
| 402 | No credits | transcriptapi.com/billing |
| 403/1010 | Cloudflare block | Add or fix User-Agent header |
| 404 | Not found | Resource doesn't exist |
| 408 | Timeout/retryable | Retry once after 2s |
| 422 | Validation error | Check param format |
| 429 | Rate limited | Wait, respect Retry-After |
Free tier: 100 credits, 300 req/min. Starter ($5/mo): 1,000 credits.
Every request in this file as a ready-to-run one-liner: references/curl-examples.md
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