---
title: "Get Caption"
method: POST
path: "/caption"
tags: ["AI Search"]
---

# Get Caption

`POST /caption`

**Description**


The *Caption Route* is used to get a caption that describes the given image.

## Headers

- `api_token` string, required

## Request body

- object
  - `image_url` string — The URL of the input image. If both image_url and image_file are provided, image_url will be used. Accepted formats are jpeg, jpg, png, webp. Maximum file size 12MB.
  - `file` string — The file of the input image, in base64 format. Used if image_url is not provided. Accepted formats are jpeg, jpg, png, webp. Maximum file size 12MB.

## Response `200`

Successful operation.

- object
  - `results` object[]
    - `caption` string

## Other responses

- `400` — Bad request. Missing or invalid parameters.
- `401` — Unauthorized. Invalid API key or authentication token.
- `404` — Not found. Image could not be found at the provided URL.
- `413` — Payload too large. Image file size exceeds the 12MB limit.
- `415` — Unsupported media type. Invalid file type. Supported file types are jpeg, jpg, png, webp.
- `429` — Request limit exceeded. Your account has reached its maximum allowed requests. Please upgrade your plan or try again later.
- `451` — Unavailable for legal reasons.
- `460` — Failed to download image.
- `500` — Internal server error. An error occurred on the server.

---

[API](https://skmtc.net/bria-ai/apis/the-bria-api.md) · [All operations](https://skmtc.net/bria-ai/apis/the-bria-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/bria-ai/the-bria-api/revisions/2768230345a5/schema)