Agent Runtime
Status: Connected
Parsing documentation...
Extracted api references
Generating type definitions...
opensteeropensteer
Y Combinator logoBacked by Y Combinator.

The most comprehensive browser automation framework for AI

Enterprise-grade automation at scale.

Custom plans, unlimited concurrent sessions, dedicated proxies, and advanced support for teams that need more.

+ self-service sso
+ unlimited concurrent sessions
+ custom audit logs
+ advanced captcha bypass
+ dedicated support
view pricing

Simple, transparent pricing.

Start for free, upgrade when you need to scale. Everything you need to build robust AI agents.

Cloud Mode (cloud:true)

Cloud Errors and Troubleshooting

Diagnose cloud authentication, contract, capacity, and runtime issues quickly.

Common Cloud Error Codes

  • CLOUD_ACTION_FAILED
  • CLOUD_AUTH_FAILED
  • CLOUD_BILLING_LIMIT_REACHED
  • CLOUD_BROWSER_PROFILE_BUSY
  • CLOUD_BROWSER_PROFILE_DISABLED
  • CLOUD_BROWSER_PROFILE_NOT_FOUND
  • CLOUD_BROWSER_PROFILE_PROXY_UNAVAILABLE
  • CLOUD_BROWSER_PROFILE_SYNC_FAILED
  • CLOUD_CAPACITY_EXHAUSTED
  • CLOUD_CONTRACT_MISMATCH
  • CLOUD_CONTROL_PLANE_ERROR
  • CLOUD_INTERNAL
  • CLOUD_INVALID_REQUEST
  • CLOUD_MODEL_NOT_ALLOWED
  • CLOUD_PROXY_REQUIRED
  • CLOUD_PROXY_UNAVAILABLE
  • CLOUD_RATE_LIMITED
  • CLOUD_RUNTIME_MISMATCH
  • CLOUD_RUNTIME_UNAVAILABLE
  • CLOUD_SESSION_CLOSED
  • CLOUD_SESSION_NOT_FOUND
  • CLOUD_SESSION_STALE
  • CLOUD_UNSUPPORTED_METHOD

Troubleshooting Checklist

  1. Verify OPENSTEER_MODE=cloud (or constructor cloud: true).
  2. Verify API key and auth scheme.
  3. Confirm contract version is v3.
  4. Check control-plane health endpoint before retrying.
  5. For rate limits, honor Retry-After when returned.

Notes

  • Opensteer.from(page) is unsupported in cloud mode.
  • uploadFile, exportCookies, and importCookies are unsupported in cloud mode because they depend on local filesystem paths.
  • opensteer.agent({ mode: 'cua' }) is supported in cloud mode after launch(). CUA actions execute against the active cloud CDP page.

Covered Features

  • api:GET /health
  • env:OPENSTEER_API_KEY
  • env:OPENSTEER_MODE