# Read one picture of the library

> Page: https://docs.plotwork.dev/api/get-v1-library-id-svg. Index of every page: https://docs.plotwork.dev/llms.txt

The SVG of a diagram the caller can see, private ones included, with a strong ETag; If-None-Match answers 304.

`GET /v1/library/{id}.svg`

## TL;DR

| Question | Answer |
|---|---|
| What does it do? | Read one picture of the library. |
| What does it take? | `id` in the path. |
| What does it return? | Status 200 with no body. |
| What can go wrong? | `304` the picture has not changed; `401` no key, or the key or token is not valid; `403` the token's grant does not hold library:read (oauth.insufficient_scope); `404` no such diagram the caller can see; `429` too many requests, or the daily limit is used up. Every failure uses the one error envelope. |

## What it does

The SVG of a diagram the caller can see, private ones included, with a strong ETag; If-None-Match answers 304. Cache-Control is private, no-cache. An app's token needs library:read.

## Path parameters

| Field | Type | Required | Description |
|---|---|---|---|
| `id` | `string` | yes |  |

## Responses

| Status | Meaning | Body |
|---|---|---|
| 200 | The SVG. | none |
| 304 | The picture has not changed. | none |
| 401 | No key, or the key or token is not valid. | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |
| 403 | The token's grant does not hold library:read (oauth.insufficient_scope). | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |
| 404 | No such diagram the caller can see. | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |
| 429 | Too many requests, or the daily limit is used up. | [`ErrorResponse`](https://docs.plotwork.dev/api/schemas.md#errorresponse) |

## See also

| Doc | Why |
|---|---|
| [API reference](https://docs.plotwork.dev/api/reference.md) | Every endpoint, and the error envelope |
| [Schemas](https://docs.plotwork.dev/api/schemas.md) | Every request and response type |
| [Tool reference](https://docs.plotwork.dev/mcp/tools.md) | The operations as callable tools |