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HeyGen Templates API

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

HeyGen Templates API is one of 13 APIs that HeyGen publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Templates. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 4 operations across 4 paths. It is described by OpenAPI 3.2.0, at version 4.0.8.

Requests are made against a single base URL, https://api.heygen.com.

4 operations 4 paths 0 schemas 3 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
4.0.8
Base URL
https://api.heygen.com/v3
Authentication
API Key, API Key
Resource Areas
1

Authentication & Security 2

HeyGen Templates API declares 2 security schemes for authenticating requests. An API key is passed in the header as x-api-key (sec0). An API key is passed in the header as X-API-KEY (ApiKeyAuth). By default, every request must be authenticated.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 3 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Templates 4

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

POST
/v2/template/{template_id}/generate
Generate Video from Template
generate-from-template-v2 1 param body → 200400
GET
/v2/template/{template_id}
Retrieve Template Details
get-template-v2 1 param → 200400
GET
/v2/templates
List Templates
list-templates-v2 → 200400
GET
/v3/template/{template_id}
Retrieve Template Details (V3)
get-template-v3 1 param → 200

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

heygen-templates-api-openapi.yml Raw ↑

Other APIs HeyGen publishes across the network.

HeyGen API
HeyGen Account API
HeyGen Assets API
HeyGen Avatars API
HeyGen Digital Twins API
HeyGen Folders API
HeyGen Photo Avatars API
HeyGen Streaming API
HeyGen Video Translation API
HeyGen Videos API
HeyGen Voices API
HeyGen Webhooks API
Where this information came from

This is an independent, third-party profile of HeyGen Templates API, 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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