heygen

Name: heygen
Availability: InStock
Author: Calesthio

Generate avatar-based videos from prompts via HeyGen API endpoints.

46.2k|5.7k|Updated Mar 29, 2026

Search Tags:#api #mcp #video-generation #prompt-optimizer #avatar-video #heygen #video-agent

Ready to run

npx skills add https://github.com/calesthio/OpenMontage --skill heygen-calesthio

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: heygen
Source: https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/heygen
Command: npx skills add https://github.com/calesthio/OpenMontage --skill heygen-calesthio

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

The legacy HeyGen skill provides a centralized path to generate talking-head videos using the old Video Agent prompts or v1/v2 endpoints, preserving backward compatibility while guiding users toward newer focused skills.

Core Features & Use Cases

Supports both prompt-based Video Agent generation and standard v2/v1 video generation.
Allows usage with MCP tools or direct API calls and links to authentication/quotas/video-status references.
Use cases include explainer videos, training briefs, and product demos with avatar-powered scenes.

Quick Start

Provide an optimized prompt and call the appropriate HeyGen API endpoint (Video Agent or v1/v2 video/generate) to produce your video.

Frequently Asked Questions about heygen

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I generate avatar videos using the HeyGen legacy API?▼

You can automate video generation from prompts and avatars using HeyGen legacy workflows by calling the v1/v2 video generate endpoints. This approach supports multi-scene talking-head content for explainer videos, training briefs, and product demos.

Can I use MCP tools for HeyGen video generation?▼

Yes, you can use MCP tools alongside direct API calls authenticated via X-Api-Key for HeyGen video generation. This dual support allows flexible integration of prompt-based Video Agent workflows into your existing automation pipelines.

What is the HeyGen legacy Video Agent used for?▼

The HeyGen legacy Video Agent automates the creation of multi-scene, avatar-based talking-head videos from optimized prompts. It is designed for generating explainer videos, training briefs, and product demos while maintaining backward compatibility with v1/v2 endpoints.

How do I check video status and quotas in the HeyGen legacy workflow?▼

You check video status and quotas by referencing the dedicated reference files included in the HeyGen legacy workflow. These files provide the necessary details for X-Api-Key authentication, API usage limits, and tracking video generation progress.

Does the HeyGen legacy workflow support direct API calls?▼

Yes, the HeyGen legacy workflow supports direct API calls authenticated via X-Api-Key alongside MCP tools. This allows you to bypass prompt-based Video Agent generation and directly use standard v1/v2 endpoints for avatar video creation.