YouTube Data API v3
Google's official REST API for reading and managing YouTube data including video search, channel and playlist metadata, video details, captions, comments, and content uploads.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
OAuth 2.0 with fine-grained scopes is industry-standard. API keys should be restricted to YouTube Data API v3 and specific referrers in Google Cloud Console. Google enforces TLS on all requests. Official Google client libraries handle token refresh automatically.
⚡ Reliability
Best When
An agent needs authoritative YouTube metadata — video details, channel statistics, search results, or comments — from Google's official source.
Avoid When
You need video or audio content itself, transcript extraction at scale, or you have exceeded your daily quota budget and cannot purchase extensions.
Use Cases
- • Searching YouTube for videos on a topic to provide research context to an agent
- • Fetching video metadata (title, description, view count, publish date) for content analysis
- • Retrieving channel statistics and playlists for influencer or brand research tasks
- • Accessing video comments for sentiment analysis or community insight
- • Uploading videos or managing playlists programmatically on behalf of a user
Not For
- • Downloading video or audio content (use youtube-dl/yt-dlp, subject to ToS compliance)
- • Real-time live stream data at high frequency (quota limits make this impractical)
- • Applications requiring caption/transcript retrieval at scale (TimedText API is separate and unofficial)
Interface
Authentication
Read-only operations (search, video details, channel info) use a simple API key. Write operations (upload, playlist management, comments) require OAuth 2.0 with appropriate scopes (youtube, youtube.upload, youtube.readonly, etc.). API key is the simplest path for agent read access.
Pricing
Quota is the critical constraint, not money. A search request costs 100 units, so the default quota allows only 100 searches/day. Agents should prefer videos.list (1 unit) over search.list (100 units) when video IDs are known.
Agent Metadata
Known Gotchas
- ⚠ Quota costs are asymmetric: search.list costs 100 units vs 1 unit for most other reads — agents must minimize search calls
- ⚠ Default daily quota of 10,000 units can be exhausted quickly in development if search is called in a loop
- ⚠ OAuth 2.0 setup for write operations requires Google Cloud Console configuration and user consent flow
- ⚠ Transcript/caption access requires the captions.list endpoint which only returns caption track metadata, not the full text
- ⚠ Results may not reflect very recent uploads due to indexing delay
- ⚠ The API does not return view count in real-time; statistics can be hours behind actual counts
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for YouTube Data API v3.
Scores are editorial opinions as of 2026-03-06.