canonical: https://jentic.com/apis/synthesia.io/synthesia

# Synthesia API

Synthesia is an AI video creation platform. The API allows you to create AI videos from text scripts with avatars, retrieve video status, list templates, and manage avatars. The API exposes 8 endpoints secured with apiKey authentication.

## For AI agents

Programmatically create a video, list all videos. Covers 8 operations with apiKey authentication.

## Scope

Does not handle payments, communications, or crm - use for media and content only.

## Capabilities

- Create a video
- List all videos
- Get a video by ID
- Update a video
- Delete a video

## Use cases

### Media and Content Operations

Use the Synthesia API to perform media operations programmatically. The API provides 8 endpoints covering core functionality including create a video, list all videos, get a video by id.

Example prompt: Call POST /videos to create a video

### Automated Avatars Management

Automate avatars operations by combining multiple Synthesia API endpoints. Agents can list all videos and then get a video by id in a single workflow.

Example prompt: Call GET /videos to list all videos, then verify the result

### AI Agent Integration via Jentic

AI agents discover and call Synthesia API endpoints through Jentic without managing credentials directly. An agent searches for the required operation by intent, receives the matching endpoint schema, and executes the call with Jentic-managed authentication. This eliminates the need to read API documentation or handle apiKey tokens manually.

Example prompt: Search Jentic for 'create a video', load the operation schema, and execute with Jentic-managed credentials

## Key endpoints

| Method | Path | Description |
| --- | --- | --- |
| POST | `/videos` | Create a video |
| GET | `/videos` | List all videos |
| GET | `/videos/{videoId}` | Get a video by ID |
| PATCH | `/videos/{videoId}` | Update a video |
| DELETE | `/videos/{videoId}` | Delete a video |
| GET | `/templates` | List all available video templates |
| GET | `/templates/{templateId}` | Get a template by ID |
| GET | `/avatars` | List all available avatars |

## Key resources

- **Avatars** — Operations related to Avatars
- **Templates** — Operations related to Templates
- **Videos** — Operations related to Videos

## Why Jentic

- **Setup:** Wiring the Synthesia API by hand means sending your API key in the Authorization header to the api.synthesia.io host and shaping the video, template, and avatar requests yourself. Through Jentic you install once, import Synthesia from the API Directory, store the API key once, and your agent calls it.
- **Permission scoping:** Synthesia puts the video id in the URL path (`/videos/{videoId}`), so a rule can pin your agent to one video: it can read and update that video and nothing else. You choose the operations it may call, so destructive ones like deleting a video are not included unless you add them.
- **Credential handling:** Your Synthesia API key is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.
- **Discovery method:** Agents search Jentic by intent such as 'create a video' or 'list templates', and Jentic returns the matching Synthesia operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

## Related APIs

- **Cloudinary** — Alternative media API
- **Mux** — Alternative media API

## FAQ

### What authentication does the Synthesia API use?

The Synthesia API uses an API key passed in the `Authorization` header. Through Jentic, these credentials are stored encrypted in your Jentic One instance and injected at execution time, so raw secrets never enter the agent context.

### Can I create a video with the Synthesia API?

Yes. Use the POST /videos endpoint. The API returns structured JSON responses that agents can parse and act on directly.

### What are the rate limits for the Synthesia API?

Rate limits are not specified in the OpenAPI spec. Check the vendor documentation for current limits. Through Jentic, rate limiting is handled automatically with retry logic built into the execution layer.

### How do I create a video through Jentic?

Install the Jentic SDK with pip install jentic, authenticate through Jentic One, the self-hosted execution layer, then search for 'create a video'. Jentic returns the matching Synthesia API operation with its input schema. Load the schema and execute the call - credentials are injected automatically.

### How many endpoints does the Synthesia API have?

The Synthesia API exposes 8 endpoints covering avatars, templates, videos operations.

### Can I limit what my agent is allowed to do with the Synthesia API?

Yes. Because you run Jentic One yourself, you decide which Synthesia operations your agent may call, so you can allow it to create or list videos while leaving destructive calls like DELETE `/videos/{videoId}` out entirely. Since the video id lives in the URL path, a rule can pin the agent to a single video so it only reads and updates that one and touches nothing else. Access to templates and avatars can be granted or withheld the same way, and your API key stays with your own instance rather than in the agent's context.