Heygen

CommunityPopular

calesthio

heygen

[DEPRECATED] Use `create-video` for prompt-based video generation or `avatar-video` for precise avatar/scene control. This legacy skill combines both workflows — the newer focused skills provide clearer guidance.

Overview

Publisher	calesthio
Repository	`OpenMontage`
Skill name	`heygen`
Stars	67K
Forks	8.5K
Bundled files	20
License	AGPL-3.0
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
20 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by calesthio on GitHub. Read the source before you install it.

Installation

Install the Heygen AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/heygen
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/calesthio/OpenMontage.git /tmp/OpenMontage
mkdir -p .claude/skills
cp -r /tmp/OpenMontage/.agents/skills/heygen .claude/skills/heygen

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Heygen in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Heygen on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Heygen is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

HeyGen API (Deprecated)

This skill is deprecated. Use the focused skills instead:

create-video — Generate videos from a text prompt (Video Agent API)

avatar-video — Build videos with specific avatars, voices, scripts, and scenes (v2 API)

This skill remains for backward compatibility but will be removed in a future release.

AI avatar video creation API for generating talking-head videos, explainers, and presentations.

Tool Selection

If HeyGen MCP tools are available (mcp__heygen__*), prefer them over direct HTTP API calls — they handle authentication and request formatting automatically.

Task	MCP Tool	Fallback (Direct API)
Generate video from prompt	`mcp__heygen__generate_video_agent`	`POST /v1/video_agent/generate`
Check video status / get URL	`mcp__heygen__get_video`	`GET /v2/videos/{video_id}`
List account videos	`mcp__heygen__list_videos`	`GET /v2/videos`
Delete a video	`mcp__heygen__delete_video`	`DELETE /v2/videos/{video_id}`

If no HeyGen MCP tools are available, use direct HTTP API calls with X-Api-Key: $HEYGEN_API_KEY header as documented in the reference files.

Default Workflow

Prefer Video Agent for most video requests. Always use prompt-optimizer.md guidelines to structure prompts with scenes, timing, and visual styles.

With MCP tools:

Write an optimized prompt using prompt-optimizer.md → visual-styles.md
Call mcp__heygen__generate_video_agent with prompt and config (duration_sec, orientation, avatar_id)
Call mcp__heygen__get_video with the returned video_id to poll status and get the download URL

Without MCP tools (direct API):

Write an optimized prompt using prompt-optimizer.md → visual-styles.md
POST /v1/video_agent/generate — see video-agent.md
GET /v2/videos/<id> — see video-status.md

Only use v2/video/generate when user explicitly needs:

Exact script without AI modification
Specific voice_id selection
Different avatars/backgrounds per scene
Precise per-scene timing control
Programmatic/batch generation with exact specs

Quick Reference

Task	MCP Tool	Read
Generate video from prompt (easy)	`mcp__heygen__generate_video_agent`	prompt-optimizer.md → visual-styles.md → video-agent.md
Generate video with precise control	—	video-generation.md, avatars.md, voices.md
Check video status / get download URL	`mcp__heygen__get_video`	video-status.md
Add captions or text overlays	—	captions.md, text-overlays.md
Transparent video for compositing	—	video-generation.md (WebM section)
Use with Remotion	—	remotion-integration.md

Reference Files

Foundation

references/authentication.md - API key setup and X-Api-Key header
references/quota.md - Credit system and usage limits
references/video-status.md - Polling patterns and download URLs
references/assets.md - Uploading images, videos, audio

Core Video Creation

references/avatars.md - Listing avatars, styles, avatar_id selection
references/voices.md - Listing voices, locales, speed/pitch
references/scripts.md - Writing scripts, pauses, pacing
references/video-generation.md - POST /v2/video/generate and multi-scene videos
references/video-agent.md - One-shot prompt video generation
references/prompt-optimizer.md - Writing effective Video Agent prompts (core workflow + rules)
references/visual-styles.md - 20 named visual styles with full specs
references/prompt-examples.md - Full production prompt example + ready-to-use templates
references/dimensions.md - Resolution and aspect ratios

Video Customization

references/backgrounds.md - Solid colors, images, video backgrounds
references/text-overlays.md - Adding text with fonts and positioning
references/captions.md - Auto-generated captions and subtitles

Advanced Features

references/templates.md - Template listing and variable replacement
references/photo-avatars.md - Creating avatars from photos
references/webhooks.md - Webhook endpoints and events

Integration

references/remotion-integration.md - Using HeyGen in Remotion compositions

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Heygen AI skill do?

Why use Heygen on TypingMind?

Because you install it once and use it with any model. Heygen is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Heygen in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/heygen. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Heygen?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Heygen?

As many as you like. As long as a model supports skills, you can use Heygen with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Heygen AI skill free?

Yes. It is published on GitHub by calesthio under the AGPL-3.0 license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

HeyGen API (Deprecated)

Tool Selection

Default Workflow

Quick Reference

Reference Files

Foundation

Core Video Creation

Video Customization

Advanced Features

Integration

Bundled files

Frequently asked questions

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