Files
Ben Barclay b2f477a30b feat: switch managed browser provider from Browserbase to Browser Use (#5750)
* feat: switch managed browser provider from Browserbase to Browser Use

The Nous subscription tool gateway now routes browser automation through
Browser Use instead of Browserbase. This commit:

- Adds managed Nous gateway support to BrowserUseProvider (idempotency
  keys, X-BB-API-Key auth header, external_call_id persistence)
- Removes managed gateway support from BrowserbaseProvider (now
  direct-only via BROWSERBASE_API_KEY/BROWSERBASE_PROJECT_ID)
- Updates browser_tool.py fallback: prefers Browser Use over Browserbase
- Updates nous_subscription.py: gateway vendor 'browser-use', auto-config
  sets cloud_provider='browser-use' for new subscribers
- Updates tools_config.py: Nous Subscription entry now uses Browser Use
- Updates setup.py, cli.py, status.py, prompt_builder.py display strings
- Updates all affected tests to match new behavior

Browserbase remains fully functional for users with direct API credentials.
The change only affects the managed/subscription path.

* chore: remove redundant Browser Use hint from system prompt

* fix: upgrade Browser Use provider to v3 API

- Base URL: api/v2 -> api/v3 (v2 is legacy)
- Unified all endpoints to use native Browser Use paths:
  - POST /browsers (create session, returns cdpUrl)
  - PATCH /browsers/{id} with {action: stop} (close session)
- Removed managed-mode branching that used Browserbase-style
  /v1/sessions paths — v3 gateway now supports /browsers directly
- Removed unused managed_mode variable in close_session

* fix(browser-use): use X-Browser-Use-API-Key header for managed mode

The managed gateway expects X-Browser-Use-API-Key, not X-BB-API-Key
(which is a Browserbase-specific header). Using the wrong header caused
a 401 AUTH_ERROR on every managed-mode browser session create.

Simplified _headers() to always use X-Browser-Use-API-Key regardless
of direct vs managed mode.

* fix(nous_subscription): browserbase explicit provider is direct-only

Since managed Nous gateway now routes through Browser Use, the
browserbase explicit provider path should not check managed_browser_available
(which resolves against the browser-use gateway). Simplified to direct-only
with managed=False.

* fix(browser-use): port missing improvements from PR #5605

- CDP URL normalization: resolve HTTP discovery URLs to websocket after
  cloud provider create_session() (prevents agent-browser failures)
- Managed session payload: send timeout=5 and proxyCountryCode=us for
  gateway-backed sessions (prevents billing overruns)
- Update prompt builder, browser_close schema, and module docstring to
  replace remaining Browserbase references with Browser Use
- Dynamic /browser status detection via _get_cloud_provider() instead
  of hardcoded env var checks (future-proof for new providers)
- Rename post_setup key from 'browserbase' to 'agent_browser'
- Update setup hint to mention Browser Use alongside Browserbase
- Add tests: CDP normalization, browserbase direct-only guard,
  managed browser-use gateway, direct browserbase fallback

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Co-authored-by: rob-maron <132852777+rob-maron@users.noreply.github.com>
2026-04-07 08:40:22 -04:00
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