yt-studio-mcp

An MCP (Model Context Protocol) server for managing a YouTube channel through the official Google APIs — videos, comments and moderation, playlists, live broadcasts, captions, analytics — plus an auditable giveaway suite for running comment-entry giveaways with deterministic, independently verifiable winner drawing.

• Official APIs only (YouTube Data v3 + YouTube Analytics v2). No scraping.

• Every mutating tool accepts dry_run=true and returns a preview instead of writing.

• No secrets in this repo, in logs, or in your MCP client config.

Quick start

1. Create Google credentials (~5 minutes, one time)

1. Go to console.cloud.google.com, create a project.

2. APIs & Services → Library: enable YouTube Data API v3 and YouTube Analytics API.

3. APIs & Services → OAuth consent screen: External, add yourself as a test user.

4. APIs & Services → Credentials → Create credentials → OAuth client ID → Desktop app; download the JSON as client_secret.json.

2. Authorize your channel

uvx yt-studio-mcp auth --client-secret /path/to/client_secret.json

A browser opens — sign in and pick the channel (Brand Accounts appear as separate choices). The refresh token is stored locally (see Secret storage).

3. Connect your MCP client

# Claude Code
claude mcp add yt-studio -s user -- uvx yt-studio-mcp

Tools

Known API limitations (documented, not bugs): comments cannot be pinned via the API (post_video_question reminds you to pin manually in Studio), and Community-tab posts have no public API.

Multistreaming to Twitch

Multistream plugins (Aitum, Restream) mirror the video to Twitch but not the metadata — Twitch keeps whatever title and category were set last, so a new stream goes out under the previous stream's name. create_broadcast therefore sets the Twitch title/category too (twitch=True by default, twitch_game strongly recommended); pass twitch=False to skip it. A Twitch failure never fails the YouTube broadcast — it is reported in the result.

One-time setup:

1. Create an application at https://dev.twitch.tv/console/apps with the OAuth redirect URL set to exactly http://localhost:8271.

2. Run, as the channel owner:

   yt-studio-mcp twitch-auth --client-id <id> --client-secret <secret>

   On a headless box the local listener cannot catch the redirect -- it goes to the browser's localhost, not the server's. Do this instead:

   yt-studio-mcp twitch-auth --client-id <id> --client-secret <secret> --print-url
   # open that URL anywhere, let the redirect fail, copy ?code=... from the bar
   yt-studio-mcp twitch-auth --client-id <id> --client-secret <secret> --code <code>

   Authorization codes expire in minutes -- paste promptly.

This stores twitch_client_id, twitch_client_secret and twitch_refresh_token in the configured secret backend. The grant needs the channel:manage:broadcast scope — an app (client-credentials) token cannot modify a channel. Twitch rotates refresh tokens, and the rotated value is persisted automatically (except on the read-only env backend).

Running a giveaway

The giveaway suite implements a common official-rules pattern: comment on any video during the entry window; each distinct video counts as one entry, capped per person; winners drawn at random.

1. collect_entries(start="2026-01-01T00:00:00Z", end="2026-01-31T23:59:59Z",
                   max_entries_per_user=5, exclude_channel_ids=[...])
     → walks every upload's comments, derives entries, writes a snapshot
       file and returns its SHA-256 entry hash. Announce the hash if you
       want third-party verifiability.

2. draw_winners(snapshot_path, n=5, seed="any-public-string")
     → deterministic: a seeded shuffle over the canonically sorted entries,
       first n distinct channels win. Anyone with the snapshot + seed can
       re-run the draw and get identical winners. Records an audit file.
       Screen-record this step for extra transparency.

3. make_verification_code(audit_path, winner_channel_id)
     → short code you send to the claimed winner over your announced contact
       channel.

4. check_verification_reply(audit_path, comment_id, winner_channel_id)
     → confirms the reply was authored by the winning channel and contains
       the code — proves account ownership before shipping a prize.

5. post_winner_reply(comment_id, "Congratulations! ...")

Entries and audit records live in ~/.config/yt-studio-mcp/giveaways/.

This tool automates entry collection and drawing; giveaway laws vary by jurisdiction and platform policies apply (e.g. YouTube's contest policies). You are responsible for your own official rules and compliance.

Secret storage

Quota

The Data API's default allocation is 10,000 units/day. Most reads cost 1 unit; writes cost ~50; a video upload costs 1,600. quota_status() shows a session estimate and warns at 80%. collect_entries reports what it spent.

Development

pip install -e '.[dev]'
ruff check src tests && pytest

Tests are fully offline (mocked Google API). PRs welcome.

License

MIT