Upload Session Files

Get presigned PUT URLs for uploading files to a session’s workspace.

Files are placed under uploads/ in the session’s S3 prefix. After receiving the URLs, PUT each file directly to S3 using the returned uploadUrl with the matching Content-Type header.

POST /sessions/{session_id}/files/upload

Upload Session Files

JavaScript

const options = {
  method: 'POST',
  headers: {'X-Browser-Use-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({files: [{name: '<string>', contentType: 'application/octet-stream', size: 2}]})
};

fetch('https://api.browser-use.com/api/v3/sessions/{session_id}/files/upload', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

curl --request POST \
  --url https://api.browser-use.com/api/v3/sessions/{session_id}/files/upload \
  --header 'Content-Type: application/json' \
  --header 'X-Browser-Use-API-Key: <api-key>' \
  --data '
{
  "files": [
    {
      "name": "<string>",
      "contentType": "application/octet-stream",
      "size": 2
    }
  ]
}
'

import requests

url = "https://api.browser-use.com/api/v3/sessions/{session_id}/files/upload"

payload = { "files": [
        {
            "name": "<string>",
            "contentType": "application/octet-stream",
            "size": 2
        }
    ] }
headers = {
    "X-Browser-Use-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

200

{
  "files": [
    {
      "name": "<string>",
      "uploadUrl": "<string>",
      "path": "<string>"
    }
  ]
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}

Authorizations

X-Browser-Use-API-Key · string · header · required

Path Parameters

session_id · string<uuid> · required

Body

application/json

Request body for generating presigned upload URLs.

files · FileUploadItem · object[] · required

Required array length: 1 - 10 elements

Show child attributes

Response

200

application/json

Successful Response

Presigned upload URLs for the requested files.

files · FileUploadResponseItem · object[] · required

Show child attributes