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

# QuickChart API

An API to generate charts and QR codes using QuickChart services. The API exposes 4 endpoints.

## For AI agents

Programmatically generate a chart (post), generate a chart (get). Covers 4 operations.

## Scope

Does not handle payments, communications, or crm - use for developer tools only.

## Capabilities

- Generate a chart (POST)
- Access QuickChart API developer tools resources via REST API
- Query QuickChart API endpoints with structured JSON responses
- Authenticate requests with none credentials managed by Jentic
- Access QuickChart API resources programmatically via REST

## Use cases

### Developer Tools Operations

Use the QuickChart API to perform developer tools operations programmatically. The API provides 4 endpoints covering core functionality including generate a chart (post), generate a chart (get), generate a qr code (post).

Example prompt: Call POST /chart to generate a chart (post)

### Automated Chart Management

Automate chart operations by combining multiple QuickChart API endpoints. Agents can generate a chart (get) and then generate a qr code (post) in a single workflow.

Example prompt: Call GET /chart to generate a chart (get), then verify the result

### AI Agent Integration via Jentic

AI agents discover and call QuickChart 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 none tokens manually.

Example prompt: Search Jentic for 'generate a chart (post)', load the operation schema, and execute with Jentic-managed credentials

## Key endpoints

| Method | Path | Description |
| --- | --- | --- |
| POST | `/chart` | Generate a chart (POST) |
| GET | `/chart` | Generate a chart (GET) |
| POST | `/qr` | Generate a QR code (POST) |
| GET | `/qr` | Generate a QR code (GET) |

## Key resources

- **Chart** — Operations for chart
- **Qr** — Operations for qr

## Why Jentic

- **Setup:** Wiring the QuickChart API by hand means shaping each chart or QR request to quickchart.io and handling the rendered responses yourself. Through Jentic you install once, import the QuickChart API from the API Directory, and your agent calls it.
- **Permission scoping:** QuickChart works through operations like /chart and /qr rather than a resource id in the path, so scope by operations: limit the agent to the operations it needs, such as generating a chart. You choose which operations are in that set, and the agent can call only those.
- **Credential handling:** Any QuickChart connection details are stored once, encrypted, by your own Jentic One instance and injected at execution time. They never enter the agent's prompt, logs, or context.
- **Discovery method:** Agents search Jentic by intent such as 'generate a chart' or 'create a QR code', and Jentic returns the matching QuickChart operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

## Related APIs

- **Github** — Alternative developer tools API
- **Gitlab** — Alternative developer tools API

## FAQ

### What authentication does the QuickChart API use?

The QuickChart API uses no authentication. 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 generate a chart (post) with the QuickChart API?

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

### What are the rate limits for the QuickChart 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 generate a chart (post) through Jentic?

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

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

The QuickChart API exposes 4 endpoints covering chart, qr operations.

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

Yes. QuickChart works through operations like /chart and /qr rather than a resource id in the path, so you scope access by operation in your own self-hosted Jentic One instance. You decide which operations the agent may call, so you can allow it to generate a chart while keeping QR generation off limits. Your rules govern both which operations run and which credentials they use, and the agent can call only the operations you permit.