Next Browser

Nextbrowser

Nextbrowser provides cloud browsers and autonomous browser automation via API.

Docs:

• Cloud API: https://docs.nextbrowser.com/getting-started

Setup

API Key is read from openclaw config at skills.entries.next-browser.apiKey.

If not configured, tell the user:

To use Nextbrowser, you need an API key. Get one at https://app.nextbrowser.com/user-settings (new signups get 2000 free credits). Then configure it:

openclaw config set skills.entries.next-browser.apiKey "nb_your_key_here"

Base URL: https://app.nextbrowser.com/api/v1

All requests need header: Authorization: x-api-key <apiKey>

1. Profiles

Profiles persist cookies and login state across browser sessions. Create one, log into your accounts in the browser, and reuse it.

# List profiles
curl "https://app.nextbrowser.com/api/v1/browser/profiles" -H "Authorization: x-api-key $API_KEY"

# Create browser profile
curl -X POST "https://app.nextbrowser.com/api/v1/browser/profiles" \
  -H "Authorization: x-api-key $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name": "<profile-name>", "browser_settings": {"os_type": "<os-type>", "browser_type": "chrome"},
   "proxy_settings":{"protocol":"<http|https|socks5>","country":"<iso-2-country-code>","mode":"built-in"}}'

# Delete profile
curl -X DELETE "https://app.nextbrowser.com/api/v1/browser/profiles/<profile-id>" \
  -H "Authorization: x-api-key $API_KEY"

2. Credentials Manager

The Credentials Manager securely stores and reuses authentication data across browser runs and autonomous tasks.

# List credentials
curl "https://app.nextbrowser.com/api/v1/users/credentials" -H "Authorization: x-api-key $API_KEY"

3. Tasks (Subagent)

Run autonomous browser tasks - like a subagent that handles browser interactions for you. Give it a prompt and it completes the task.

Always use fast mode - optimized for browser tasks, 3-5x faster than other models. Always use true for skip_plan_approval - optimized for automated tasks, skips the approval and improve performance.

curl -X POST "https://app.nextbrowser.com/api/v1/chat/tasks" \
  -H "Authorization: x-api-key $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "task_description": "'"\
Go to Reddit.com account, check if the account is logged in (if not, use credentials stored). \
Find 10 relevant posts on the topic of AI Agents, upvote 8 of them and post 3 witty-sounding comments \
that a cynical and funny Reddit user would post. Ensure that the comment is posted, ask for approval \
if you are not sure whether such comment is okay. By the end, you should have at least 10 relevant posts \
viewed, 8 upvotes, and 3 comments."\
"'",
    "mode": "fast",
    "profile_id": "<profile-id>",
    "credentials": ["<credential-id>"],
    "skip_plan_approval": true
  }'

Poll for completion

curl "https://app.nextbrowser.com/api/v1/chat/tasks/<task-id>" -H "Authorization: x-api-key $API_KEY"

Response:

{
    "success": true,
    "payload": {
        "status": "finished",
        "output": "Task completed. 10 relevant posts are viewed, 8 upvotes are done and 3 comments posted.",
        "isSuccess": true
    },
    "errors": {},
    "description": "Task retrieved successfully"
}

Status values: processing, finished, failed

Task options

Full API Reference

See references/api.md for all endpoints including Sessions, Files, Skills, and Skills Marketplace.