const options = {
  method: 'POST',
  headers: {'X-Browser-Use-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    task: '<string>',
    model: 'gpt-5.6-luna',
    modelParams: {},
    sessionId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    workspaceId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    browserSettings: {
      profileId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
      proxyCountryCode: 'us',
      customProxy: {
        host: '<string>',
        port: 32768,
        username: '<string>',
        password: '<string>',
        ignoreCertErrors: false
      },
      screenWidth: 3232,
      screenHeight: 1888,
      record: true
    },
    attachedFileIds: ['3c90c3cc-0d44-4b50-8888-8dd25736052a'],
    judge: {context: '<string>'},
    maxCostUsd: 1
  })
};

fetch('https://api.browser-use.com/api/v4/runs', 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/v4/runs \
  --header 'Content-Type: application/json' \
  --header 'X-Browser-Use-API-Key: <api-key>' \
  --data '
{
  "task": "<string>",
  "model": "gpt-5.6-luna",
  "modelParams": {},
  "sessionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "workspaceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "browserSettings": {
    "profileId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "proxyCountryCode": "us",
    "customProxy": {
      "host": "<string>",
      "port": 32768,
      "username": "<string>",
      "password": "<string>",
      "ignoreCertErrors": false
    },
    "screenWidth": 3232,
    "screenHeight": 1888,
    "record": true
  },
  "attachedFileIds": [
    "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  ],
  "judge": {
    "context": "<string>"
  },
  "maxCostUsd": 1
}
'

import requests

url = "https://api.browser-use.com/api/v4/runs"

payload = {
    "task": "<string>",
    "model": "gpt-5.6-luna",
    "modelParams": {},
    "sessionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "workspaceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "browserSettings": {
        "profileId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "proxyCountryCode": "us",
        "customProxy": {
            "host": "<string>",
            "port": 32768,
            "username": "<string>",
            "password": "<string>",
            "ignoreCertErrors": False
        },
        "screenWidth": 3232,
        "screenHeight": 1888,
        "record": True
    },
    "attachedFileIds": ["3c90c3cc-0d44-4b50-8888-8dd25736052a"],
    "judge": { "context": "<string>" },
    "maxCostUsd": 1
}
headers = {
    "X-Browser-Use-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "model": "<string>",
  "sessionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "workspaceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "eventsUrl": "<string>",
  "missingFileIds": [
    "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  ]
}

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