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.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles HeyGen the way a machine reads it — 35 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — HeyGen scores 46.6/100 (developing), with a separate agent-readiness read of 27/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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title="HeyGen on API Evangelist — API profile and Kin Score">
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How we profile HeyGen
Each block below is one kind of artifact we hold for HeyGen. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 13
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
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 within the panel for all 13 ·
Open Collections 14
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONHeyGen Account API
OPEN COLLECTIONHeyGen Account Assets API
OPEN COLLECTIONHeyGen Account Avatars API
OPEN COLLECTIONHeyGen Account Digital Twins API
OPEN COLLECTIONHeyGen Account Folders API
OPEN COLLECTIONHeyGen Account Photo Avatars API
OPEN COLLECTIONHeyGen Account Streaming API
OPEN COLLECTIONHeyGen Account Templates API
OPEN COLLECTIONHeyGen Account Video Translation API
OPEN COLLECTIONHeyGen Account Videos API
OPEN COLLECTIONHeyGen Account Voices API
OPEN COLLECTIONHeyGen Account Webhooks API
OPEN COLLECTIONHeyGen API
OPEN COLLECTIONScroll within the panel for all 14 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Heygen Plans Pricing
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Heygen Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Heygen Finops
FINOPSSecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for HeyGen — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Access & Security 4
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/heygen · machine-readable index on apis.io
This is an independent, third-party profile of HeyGen, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.