HeyGen

HeyGen is an AI video generation platform that creates studio-quality avatar videos, voice clones, and translated video content from simple text prompts. The product line includes Avatar V (digital twins), Photo Avatar, Avatar IV, the Starfish text-to-speech engine, the Video Agent API, Video Translation, and Lipsync. HeyGen serves sales, marketing, e-learning, and localization teams with both self-serve pay-as-you-go API access (starting at a $5 minimum) and enterprise contracts. The company is SOC 2 Type II and GDPR compliant and has powered 50M+ generated videos.

HeyGen publishes 12 APIs on the APIs.io network, including Account API, Assets API, Avatars API, and 9 more. Tagged areas include Artificial Intelligence, Generative AI, Video, Avatars, and Voice Cloning.

HeyGen’s developer surface includes authentication, documentation, engineering blog, pricing, changelog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

46.6/100 developing ▬ flat Agent 27/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreeSelf serve⚡ Free to try

1 APIs

Artificial Intelligence Generative AI Video Avatars Voice Cloning Text-to-Speech Lip Sync Translation Streaming MCP

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 46.6/100 · developing

Contract Quality 12.4 / 23

Developer Ergonomics 4.3 / 18

Access Clarity 14.7 / 18

Operational Transparency 4.3 / 12

Contract Governance 0.0 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/heygen: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 13

Individual APIs this provider publishes, each with its own machine-readable definition.

HeyGen API

The HeyGen REST API exposes video generation, avatar management, text-to-speech (Starfish), video translation, and lipsync capabilities. It supports avatar videos generated from...

HeyGen Account API

Quota and account information endpoints.

HeyGen Assets API

Asset upload endpoints.

HeyGen Avatars API

Avatar and avatar group discovery endpoints.

HeyGen Digital Twins API

Digital Twin creation, status, and deletion endpoints.

HeyGen Folders API

Folder management endpoints.

HeyGen Photo Avatars API

Photo avatar generation, training, and enhancement endpoints.

HeyGen Streaming API

Streaming avatar session lifecycle and task endpoints.

HeyGen Templates API

Template listing, retrieval, and template-based video generation.

HeyGen Video Translation API

Video translation and supported-language endpoints.

HeyGen Videos API

Video generation, retrieval, and management endpoints.

HeyGen Voices API

Voice listing and voice-management endpoints.

HeyGen Webhooks API

Webhook event and endpoint management.

Scroll for all 13

Open Collections 14

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

HeyGen Account API

OPEN COLLECTION

HeyGen Account Assets API

OPEN COLLECTION

HeyGen Account Avatars API

OPEN COLLECTION

HeyGen Account Digital Twins API

OPEN COLLECTION

HeyGen Account Folders API

OPEN COLLECTION

HeyGen Account Photo Avatars API

OPEN COLLECTION

HeyGen Account Streaming API

OPEN COLLECTION

HeyGen Account Templates API

OPEN COLLECTION

HeyGen Account Video Translation API

OPEN COLLECTION

HeyGen Account Videos API

OPEN COLLECTION

HeyGen Account Voices API

OPEN COLLECTION

HeyGen Account Webhooks API

OPEN COLLECTION

HeyGen API

OPEN COLLECTION

Scroll for all 14

Pricing Plans 1

Published pricing tiers and plan structures.

Heygen Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Heygen Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Heygen Finops

FINOPS

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Heygen Authentication

apiKey · 2 schemes

SECURITY

Heygen Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Heygen Vulnerability Disclosure

security.txt · contact published

SECURITY

Heygen Trust Center

SOC 2, ISO 27001

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Heygen Agentic Access

53 operations · 30 acting · 1 human-in-the-loop

53 operations · 30 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: heygen
name: HeyGen
description: HeyGen is an AI video generation platform that creates studio-quality avatar videos, voice clones, and translated
  video content from simple text prompts. The product line includes Avatar V (digital twins), Photo Avatar, Avatar IV, the
  Starfish text-to-speech engine, the Video Agent API, Video Translation, and Lipsync. HeyGen serves sales, marketing, e-learning,
  and localization teams with both self-serve pay-as-you-go API access (starting at a $5 minimum) and enterprise contracts.
  The company is SOC 2 Type II and GDPR compliant and has powered 50M+ generated videos.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/heygen.png
tags:
- Artificial Intelligence
- Generative AI
- Video
- Avatars
- Voice Cloning
- Text-to-Speech
- Lip Sync
- Translation
- Streaming
- MCP
tags_raw:
- Artificial Intelligence
- Generative AI
- Video
- Avatars
- Voice Cloning
- Text To Speech
- Lipsync
- Translation
- Streaming
- MCP
url: https://raw.githubusercontent.com/api-evangelist/heygen/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.23'
apis:
- aid: heygen:heygen-api
  name: HeyGen API
  description: The HeyGen REST API exposes video generation, avatar management, text-to-speech (Starfish), video translation,
    and lipsync capabilities. It supports avatar videos generated from a single text prompt via the Video Agent API, as well
    as fine-grained programmatic control over avatars, voices, backgrounds, and layouts.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Video
  - Avatars
  - Voices
  - Lip Sync
  - Translation
  - Text-to-Speech
  tags_raw:
  - Video
  - Avatars
  - Voices
  - Lipsync
  - Translation
  - Text To Speech
  properties:
  - type: Documentation
    url: https://developers.heygen.com/
  - type: GettingStarted
    url: https://developers.heygen.com/docs/quick-start
  - type: Signup
    url: https://app.heygen.com/signup
  - type: API
    url: https://developers.heygen.com/reference
  - type: Pricing
    url: https://www.heygen.com/pricing
  - type: Authentication
    url: https://developers.heygen.com/docs/authentication
  features:
  - name: Video Agent API
    description: Generate complete avatar videos from a single text prompt with no manual setup.
  - name: Video Generation API
    description: Programmatically control avatars, voices, backgrounds, and layouts to compose videos.
  - name: Digital Twin Avatars (Avatar V)
    description: Create photorealistic digital twins of real people for enterprise and creator use.
  - name: Photo Avatar and Avatar IV
    description: Generate talking avatars from a single photo with multiple model tiers.
  - name: Starfish Text-to-Speech
    description: Natural voice synthesis used for narration across video and audio workflows.
  - name: Video Translation
    description: Translate and dub videos into 175+ languages with preserved lip-sync.
  - name: Lipsync
    description: Swap audio in existing videos with automatic lip synchronization (Precision and Speed models).
  - name: Streaming Avatars
    description: Real-time interactive avatar streaming for conversational experiences.
  - name: Webhooks
    description: Subscribe to events such as video completion for downstream automation.
  - name: MCP and Skills
    description: Connect HeyGen to AI assistants via Model Context Protocol or coding-agent Skills.
  useCases:
  - name: Personalized Sales Outreach
    description: Send 1:1 personalized prospect videos at scale.
  - name: E-Learning and Training
    description: Produce and update course content without re-recording.
  - name: Marketing Localization
    description: Translate hero videos into dozens of languages with preserved presenter likeness.
  - name: Podcast Repurposing
    description: Convert audio content into avatar-narrated video.
  - name: Conversational Avatars
    description: Build interactive avatar agents for support and onboarding.
  integrations:
  - name: Claude
  - name: Claude Code
  - name: Cursor
  - name: Zapier
  - name: Make
  - name: Webhooks
  - name: OAuth (MCP)
  authentication:
  - type: API Key
    description: API keys generated in the HeyGen dashboard are passed in the X-Api-Key header; MCP-based connections use
      OAuth.
- aid: heygen:heygen-account-api
  name: HeyGen Account API
  description: Quota and account information endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/heygen-account-api-openapi.yml
- aid: heygen:heygen-assets-api
  name: HeyGen Assets API
  description: Asset upload endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Assets
  properties:
  - type: OpenAPI
    url: openapi/heygen-assets-api-openapi.yml
- aid: heygen:heygen-avatars-api
  name: HeyGen Avatars API
  description: Avatar and avatar group discovery endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Avatars
  properties:
  - type: OpenAPI
    url: openapi/heygen-avatars-api-openapi.yml
- aid: heygen:heygen-digital-twins-api
  name: HeyGen Digital Twins API
  description: Digital Twin creation, status, and deletion endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Digital Twins
  properties:
  - type: OpenAPI
    url: openapi/heygen-digital-twins-api-openapi.yml
- aid: heygen:heygen-folders-api
  name: HeyGen Folders API
  description: Folder management endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Folders
  properties:
  - type: OpenAPI
    url: openapi/heygen-folders-api-openapi.yml
- aid: heygen:heygen-photo-avatars-api
  name: HeyGen Photo Avatars API
  description: Photo avatar generation, training, and enhancement endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Photo Avatars
  properties:
  - type: OpenAPI
    url: openapi/heygen-photo-avatars-api-openapi.yml
- aid: heygen:heygen-streaming-api
  name: HeyGen Streaming API
  description: Streaming avatar session lifecycle and task endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Streaming
  properties:
  - type: OpenAPI
    url: openapi/heygen-streaming-api-openapi.yml
- aid: heygen:heygen-templates-api
  name: HeyGen Templates API
  description: Template listing, retrieval, and template-based video generation.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/heygen-templates-api-openapi.yml
- aid: heygen:heygen-video-translation-api
  name: HeyGen Video Translation API
  description: Video translation and supported-language endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Video Translation
  properties:
  - type: OpenAPI
    url: openapi/heygen-video-translation-api-openapi.yml
- aid: heygen:heygen-videos-api
  name: HeyGen Videos API
  description: Video generation, retrieval, and management endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Videos
  properties:
  - type: OpenAPI
    url: openapi/heygen-videos-api-openapi.yml
- aid: heygen:heygen-voices-api
  name: HeyGen Voices API
  description: Voice listing and voice-management endpoints.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Voices
  properties:
  - type: OpenAPI
    url: openapi/heygen-voices-api-openapi.yml
- aid: heygen:heygen-webhooks-api
  name: HeyGen Webhooks API
  description: Webhook event and endpoint management.
  humanURL: https://developers.heygen.com/
  baseURL: https://api.heygen.com/v3
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/heygen-webhooks-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/heygen-agentic-access.yml
- type: TrustCenter
  url: security/heygen-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/heygen-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/heygen-domain-security.yml
- type: Authentication
  url: authentication/heygen-authentication.yml
- type: Website
  url: https://www.heygen.com
- type: Documentation
  url: https://developers.heygen.com
- type: Blog
  url: https://www.heygen.com/blog
- type: Pricing
  url: https://www.heygen.com/pricing
- type: TermsOfService
  url: https://www.heygen.com/policy
- type: PrivacyPolicy
  url: https://www.heygen.com/privacy-policy
- type: X
  url: https://x.com/HeyGen_Official
- type: LinkedIn
  url: https://www.linkedin.com/company/heygen
- type: ChangeLog
  url: https://developers.heygen.com/changelog
- type: LlmsText
  url: https://developers.heygen.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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