Submagic API — model skill for captions & subtitles
For AI agents: find the right skill in one call —
curl -s "https://varg.ai/how-to/api/search?q=<what the person wants>"returns the matching how-to page and the best skills with install commands, as markdown (Russian works too). Full index: https://varg.ai/how-to/llms.txt. Every page has a markdown twin: add.mdto its path. Before generating anything, show the person the options on the how-to page.
Caption-styled shorts API with an MCP server: AI captions, Magic Clips from long videos, B-roll, publishing.
- Type: Model · Captions & subtitles
- Slug:
submagic - Status: live
- Publisher: Submagic (community)
- License: unknown
- Source: https://docs.submagic.co/mcp-server
- Works in: Claude Code, Claude.ai, Cursor, Any MCP client
- Requires: Submagic API key
- Cost: Subscription
What it does
Submagic's API creates projects from a video URL or upload with AI captions in its templates, generates Magic Clips from YouTube or uploaded long videos, adds user B-roll and music, exports, and publishes or schedules to social platforms. A hosted MCP endpoint exposes the same actions to Claude, Cursor and other clients; transcripts can be edited before rendering.
Use when
- add viral-style captions to a talking-head clip
- clip a long YouTube video into shorts
- publish captioned clips to TikTok and Reels
Install
- Claude Code:
claude mcp add --transport http submagic https://api.submagic.co/mcp --header "Authorization: Bearer $SUBMAGIC_API_KEY"
More captions & subtitles skills
- 3D Camera Captions: Captions that live in 3D around a talking head: the camera flies through the words, heroes pass behind the speaker.
- Remotion Captions: Transcribe speech and burn in animated captions with Remotion, or import an existing SRT file.
- ElevenLabs Speech to Text: Transcribe audio and video with word timestamps, speaker labels and keyterms, ready for subtitles.
- ElevenLabs Speech to Text (inference.sh): Transcribe audio with ElevenLabs Scribe, speaker diarization and forced alignment, via inference.sh.
- Speech to Text: Transcribe audio with ElevenLabs Scribe v2 or Whisper V3 Large, with timestamps and speaker labels.
- Pretext Text Metrics: Measure and fit text without the DOM using pretext: auto-fit sizes, know line breaks before render, canvas/WebGL text.
Run the generation on varg
varg is one API key for the models these skills drive — Seedance 2.5, Kling 4, Veo 3.1, Wan 3, Nano Banana 2.1, GPT Image 2.5, ElevenLabs v4 and 200+ more — billed in credits, with a cost estimate before anything runs.
- Claude Code:
claude plugin marketplace add vargHQ/skills && claude plugin install varg@varg(skill + hosted MCP) - Codex, Cursor, Gemini CLI, OpenClaw:
npx skills add vargHQ/skills --skill varg-ai -a <agent> -y - Grok and any agent that reads SKILL.md:
npx skills add vargHQ/skills --skill varg-ai, or point it at the skill's SKILL.md - Claude.ai, ChatGPT, any MCP client: connect
https://mcp.varg.ai/mcp - API key: https://varg.ai/dashboard/api · Model specs: https://varg.ai/models/llms.txt