> ## Documentation Index > Fetch the complete documentation index at: https://docs.browser-use.com/llms.txt > Use this file to discover all available pages before exploring further. # Create Browser Session > Create a new browser session. **Pricing:** Browser sessions are charged at $0.02/hour for all users. The full rate is charged upfront when the session starts. When you stop the session, any unused time is automatically refunded proportionally. Billing is rounded up to the minute (minimum 1 minute). For example, if you stop a session after 30 minutes, you'll be refunded half the charged amount. **Session Limits:** - All users: Up to 4 hours per session ## OpenAPI ````yaml /cloud/openapi/v3.json post /browsers openapi: 3.1.0 info: title: Browser Use Public API v3 summary: Browser Use session-based agent API (v3) version: 3.0.0 servers: - url: https://api.browser-use.com/api/v3 description: Production server security: [] paths: /browsers: post: tags: - Browsers summary: Create Browser Session description: >- Create a new browser session. **Pricing:** Browser sessions are charged at $0.02/hour for all users. The full rate is charged upfront when the session starts. When you stop the session, any unused time is automatically refunded proportionally. Billing is rounded up to the minute (minimum 1 minute). For example, if you stop a session after 30 minutes, you'll be refunded half the charged amount. **Session Limits:** - All users: Up to 4 hours per session operationId: create_browser_session_browsers_post requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/CreateBrowserSessionRequest' responses: '201': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/BrowserSessionItemView' '403': description: Session timeout limit exceeded (maximum 4 hours) content: application/json: schema: $ref: '#/components/schemas/SessionTimeoutLimitExceededError' '404': description: Profile not found content: application/json: schema: $ref: '#/components/schemas/ProfileNotFoundError' '422': description: Request validation failed content: application/json: schema: $ref: '#/components/schemas/ValidationError' '429': description: Too many concurrent active sessions content: application/json: schema: $ref: '#/components/schemas/TooManyConcurrentActiveSessionsError' security: - APIKeyHeader: [] components: schemas: CreateBrowserSessionRequest: properties: profileId: anyOf: - type: string format: uuid - type: 'null' title: Profile ID description: The ID of the profile to use for the session proxyCountryCode: anyOf: - $ref: '#/components/schemas/ProxyCountryCode' - type: 'null' title: Proxy Country Code description: >- Country code for proxy location. Defaults to US. Set to null to disable proxy. default: us timeout: type: integer title: Timeout description: >- The timeout for the session in minutes. All users can use up to 240 minutes (4 hours). Browser sessions are charged $0.02/hour. default: 60 ge: 1 le: 240 browserScreenWidth: anyOf: - type: integer maximum: 6144 minimum: 320 - type: 'null' title: Browser Screen Width description: Custom screen width in pixels for the browser. browserScreenHeight: anyOf: - type: integer maximum: 3456 minimum: 320 - type: 'null' title: Browser Screen Height description: Custom screen height in pixels for the browser. allowResizing: type: boolean title: Allow Resizing description: >- Whether to allow the browser to be resized during the session (not recommended since it reduces stealthiness). default: false customProxy: anyOf: - $ref: '#/components/schemas/CustomProxy' - type: 'null' title: Custom Proxy description: >- Custom proxy settings to use for the session. If not provided, our proxies will be used. Custom proxies are available on any active subscription. enableRecording: type: boolean title: Enable Recording description: If True, enables session recording. Defaults to False. default: false type: object title: CreateBrowserSessionRequest description: Request model for creating a browser session. BrowserSessionItemView: properties: id: type: string format: uuid title: ID description: Unique identifier for the session status: $ref: '#/components/schemas/BrowserSessionStatus' title: Status description: Current status of the session (active/stopped) liveUrl: anyOf: - type: string - type: 'null' title: Live URL description: URL where the browser can be viewed live in real-time cdpUrl: anyOf: - type: string - type: 'null' title: CDP URL description: Chrome DevTools Protocol URL for browser automation timeoutAt: type: string format: date-time title: Timeout At description: Timestamp when the session will timeout startedAt: type: string format: date-time title: Started At description: Timestamp when the session was created and started finishedAt: anyOf: - type: string format: date-time - type: 'null' title: Finished At description: Timestamp when the session was stopped (None if still active) proxyUsedMb: type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Proxy Used MB description: Amount of proxy data used in MB default: '0' proxyCost: type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Proxy Cost description: Cost of proxy usage in USD default: '0' browserCost: type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Browser Cost description: Cost of browser session hosting in USD default: '0' agentSessionId: anyOf: - type: string format: uuid - type: 'null' title: Agent Session ID description: >- ID of the agent session that created this browser (None for standalone BaaS sessions) recordingUrl: anyOf: - type: string - type: 'null' title: Recording URL description: >- Presigned URL to download the session recording (available after session ends, if recording was enabled) type: object required: - id - status - timeoutAt - startedAt title: BrowserSessionItemView description: View model for representing a browser session in list views. SessionTimeoutLimitExceededError: properties: detail: type: string title: Detail default: Maximum session timeout is 4 hours (240 minutes). type: object title: SessionTimeoutLimitExceededError description: Error response when session timeout exceeds the maximum allowed limit ProfileNotFoundError: properties: detail: type: string title: Detail default: Profile not found type: object title: ProfileNotFoundError description: Error response when a profile is not found ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError TooManyConcurrentActiveSessionsError: properties: detail: type: string title: Detail default: >- Too many concurrent active sessions. Please wait for one to finish, kill one, or upgrade your plan. type: object title: TooManyConcurrentActiveSessionsError description: Error response when user has too many concurrent active sessions ProxyCountryCode: type: string enum: - ad - ae - af - ag - ai - al - am - an - ao - aq - ar - as - at - au - aw - az - ba - bb - bd - be - bf - bg - bh - bi - bj - bl - bm - bn - bo - bq - br - bs - bt - bv - bw - by - bz - ca - cc - cd - cf - cg - ch - ck - cl - cm - co - cr - cs - cu - cv - cw - cx - cy - cz - de - dj - dk - dm - do - dz - ec - ee - eg - eh - er - es - et - fi - fj - fk - fm - fo - fr - ga - gd - ge - gf - gg - gh - gi - gl - gm - gn - gp - gq - gr - gs - gt - gu - gw - gy - hk - hm - hn - hr - ht - hu - id - ie - il - im - in - iq - ir - is - it - je - jm - jo - jp - ke - kg - kh - ki - km - kn - kp - kr - kw - ky - kz - la - lb - lc - li - lk - lr - ls - lt - lu - lv - ly - ma - mc - md - me - mf - mg - mh - mk - ml - mm - mn - mo - mp - mq - mr - ms - mt - mu - mv - mw - mx - my - mz - na - nc - ne - nf - ng - ni - nl - 'no' - np - nr - nu - nz - om - pa - pe - pf - pg - ph - pk - pl - pm - pn - pr - ps - pt - pw - py - qa - re - ro - rs - ru - rw - sa - sb - sc - sd - se - sg - sh - si - sj - sk - sl - sm - sn - so - sr - ss - st - sv - sx - sy - sz - tc - td - tf - tg - th - tj - tk - tl - tm - tn - to - tr - tt - tv - tw - tz - ua - ug - uk - us - uy - uz - va - vc - ve - vg - vi - vn - vu - wf - ws - xk - ye - yt - za - zm - zw title: ProxyCountryCode CustomProxy: properties: host: type: string maxLength: 255 minLength: 1 title: Host description: Host of the proxy. port: type: integer maximum: 65535 minimum: 1 title: Port description: Port of the proxy. username: anyOf: - type: string maxLength: 255 minLength: 1 - type: 'null' title: Username description: Username for proxy authentication. password: anyOf: - type: string maxLength: 255 minLength: 1 - type: 'null' title: Password description: Password for proxy authentication. ignoreCertErrors: type: boolean title: Ignore Certificate Errors description: >- Ignore TLS certificate errors. Enable this if your proxy uses a self-signed or untrusted certificate (e.g. Burp Suite, corporate proxies). default: false type: object required: - host - port title: CustomProxy description: Request model for creating a custom proxy. BrowserSessionStatus: type: string enum: - active - stopped title: BrowserSessionStatus description: |- Enumeration of possible browser session states Attributes: ACTIVE: Session is currently active and running (browser is running) STOPPED: Session has been stopped and is no longer active (browser is stopped) securitySchemes: APIKeyHeader: type: apiKey in: header name: X-Browser-Use-API-Key ````