All Implemented Interfaces:

com.browserbase.api.core.Params
```
public final class SessionStartParams
 implements Params
                    
```
Creates a new browser session with the specified configuration. Returns a session ID used for all subsequent operations.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public final class`	`SessionStartParams.Builder`	A builder for SessionStartParams.
`public final class`	`SessionStartParams.Body`
`public final class`	`SessionStartParams.Browser`
`public final class`	`SessionStartParams.BrowserbaseSessionCreateParams`
`public final class`	`SessionStartParams.Verbose`	Logging verbosity level (0=quiet, 1=normal, 2=debug)
`public final class`	`SessionStartParams.XStreamResponse`	Whether to stream the response via SSE

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`final Optional<SessionStartParams.XStreamResponse>`	`xStreamResponse()`	Whether to stream the response via SSE
`final String`	`modelName()`	Model name to use for AI operations
`final Optional<Double>`	`actTimeoutMs()`	Timeout in ms for act operations (deprecated, v2 only)
`final Optional<SessionStartParams.Browser>`	`browser()`
`final Optional<SessionStartParams.BrowserbaseSessionCreateParams>`	`browserbaseSessionCreateParams()`
`final Optional<String>`	`browserbaseSessionId()`	Existing Browserbase session ID to resume
`final Optional<Double>`	`domSettleTimeoutMs()`	Timeout in ms to wait for DOM to settle
`final Optional<Boolean>`	`experimental()`
`final Optional<Boolean>`	`selfHeal()`	Enable self-healing for failed actions
`final Optional<String>`	`systemPrompt()`	Custom system prompt for AI operations
`final Optional<SessionStartParams.Verbose>`	`verbose()`	Logging verbosity level (0=quiet, 1=normal, 2=debug)
`final Optional<Boolean>`	`waitForCaptchaSolves()`	Wait for captcha solves (deprecated, v2 only)
`final JsonField<String>`	`_modelName()`	Returns the raw JSON value of modelName.
`final JsonField<Double>`	`_actTimeoutMs()`	Returns the raw JSON value of actTimeoutMs.
`final JsonField<SessionStartParams.Browser>`	`_browser()`	Returns the raw JSON value of browser.
`final JsonField<SessionStartParams.BrowserbaseSessionCreateParams>`	`_browserbaseSessionCreateParams()`	Returns the raw JSON value of browserbaseSessionCreateParams.
`final JsonField<String>`	`_browserbaseSessionId()`	Returns the raw JSON value of browserbaseSessionId.
`final JsonField<Double>`	`_domSettleTimeoutMs()`	Returns the raw JSON value of domSettleTimeoutMs.
`final JsonField<Boolean>`	`_experimental()`	Returns the raw JSON value of experimental.
`final JsonField<Boolean>`	`_selfHeal()`	Returns the raw JSON value of selfHeal.
`final JsonField<String>`	`_systemPrompt()`	Returns the raw JSON value of systemPrompt.
`final JsonField<SessionStartParams.Verbose>`	`_verbose()`	Returns the raw JSON value of verbose.
`final JsonField<Boolean>`	`_waitForCaptchaSolves()`	Returns the raw JSON value of waitForCaptchaSolves.
`final Map<String, JsonValue>`	`_additionalBodyProperties()`
`final Headers`	`_additionalHeaders()`	Additional headers to send with the request.
`final QueryParams`	`_additionalQueryParams()`	Additional query param to send with the request.
`final SessionStartParams.Builder`	`toBuilder()`
`final SessionStartParams.Body`	`_body()`
`Headers`	`_headers()`	The full set of headers in the parameters, including both fixed and additional headers.
`QueryParams`	`_queryParams()`	The full set of query params in the parameters, including both fixed and additional query params.
`Boolean`	`equals(Object other)`
`Integer`	`hashCode()`
`String`	`toString()`
`final static SessionStartParams.Builder`	`builder()`	Returns a mutable builder for constructing an instance of SessionStartParams.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - xStreamResponse
```
 final Optional<SessionStartParams.XStreamResponse> xStreamResponse()
```
    Whether to stream the response via SSE
  - modelName
```
 final String modelName()
```
    Model name to use for AI operations
  - actTimeoutMs
```
 final Optional<Double> actTimeoutMs()
```
    Timeout in ms for act operations (deprecated, v2 only)
  - browser
```
 final Optional<SessionStartParams.Browser> browser()
```
  - browserbaseSessionCreateParams
```
 final Optional<SessionStartParams.BrowserbaseSessionCreateParams> browserbaseSessionCreateParams()
```
  - browserbaseSessionId
```
 final Optional<String> browserbaseSessionId()
```
    Existing Browserbase session ID to resume
  - domSettleTimeoutMs
```
 final Optional<Double> domSettleTimeoutMs()
```
    Timeout in ms to wait for DOM to settle
  - experimental
```
 final Optional<Boolean> experimental()
```
  - selfHeal
```
 final Optional<Boolean> selfHeal()
```
    Enable self-healing for failed actions
  - systemPrompt
```
 final Optional<String> systemPrompt()
```
    Custom system prompt for AI operations
  - verbose
```
 final Optional<SessionStartParams.Verbose> verbose()
```
    Logging verbosity level (0=quiet, 1=normal, 2=debug)
  - waitForCaptchaSolves
```
 final Optional<Boolean> waitForCaptchaSolves()
```
    Wait for captcha solves (deprecated, v2 only)
  - _modelName
```
 final JsonField<String> _modelName()
```
    Returns the raw JSON value of modelName.
    Unlike modelName, this method doesn't throw if the JSON field has an unexpected type.
  - _actTimeoutMs
```
 final JsonField<Double> _actTimeoutMs()
```
    Returns the raw JSON value of actTimeoutMs.
    Unlike actTimeoutMs, this method doesn't throw if the JSON field has an unexpected type.
  - _browser
```
 final JsonField<SessionStartParams.Browser> _browser()
```
    Returns the raw JSON value of browser.
    Unlike browser, this method doesn't throw if the JSON field has an unexpected type.
  - _browserbaseSessionCreateParams
```
 final JsonField<SessionStartParams.BrowserbaseSessionCreateParams> _browserbaseSessionCreateParams()
```
    Returns the raw JSON value of browserbaseSessionCreateParams.
    Unlike browserbaseSessionCreateParams, this method doesn't throw if the JSON field has an unexpected type.
  - _browserbaseSessionId
```
 final JsonField<String> _browserbaseSessionId()
```
    Returns the raw JSON value of browserbaseSessionId.
    Unlike browserbaseSessionId, this method doesn't throw if the JSON field has an unexpected type.
  - _domSettleTimeoutMs
```
 final JsonField<Double> _domSettleTimeoutMs()
```
    Returns the raw JSON value of domSettleTimeoutMs.
    Unlike domSettleTimeoutMs, this method doesn't throw if the JSON field has an unexpected type.
  - _experimental
```
 final JsonField<Boolean> _experimental()
```
    Returns the raw JSON value of experimental.
    Unlike experimental, this method doesn't throw if the JSON field has an unexpected type.
  - _selfHeal
```
 final JsonField<Boolean> _selfHeal()
```
    Returns the raw JSON value of selfHeal.
    Unlike selfHeal, this method doesn't throw if the JSON field has an unexpected type.
  - _systemPrompt
```
 final JsonField<String> _systemPrompt()
```
    Returns the raw JSON value of systemPrompt.
    Unlike systemPrompt, this method doesn't throw if the JSON field has an unexpected type.
  - _verbose
```
 final JsonField<SessionStartParams.Verbose> _verbose()
```
    Returns the raw JSON value of verbose.
    Unlike verbose, this method doesn't throw if the JSON field has an unexpected type.
  - _waitForCaptchaSolves
```
 final JsonField<Boolean> _waitForCaptchaSolves()
```
    Returns the raw JSON value of waitForCaptchaSolves.
    Unlike waitForCaptchaSolves, this method doesn't throw if the JSON field has an unexpected type.
  - _additionalBodyProperties
```
 final Map<String, JsonValue> _additionalBodyProperties()
```
  - _additionalHeaders
```
 final Headers _additionalHeaders()
```
    Additional headers to send with the request.
  - _additionalQueryParams
```
 final QueryParams _additionalQueryParams()
```
    Additional query param to send with the request.
  - toBuilder
```
 final SessionStartParams.Builder toBuilder()
```
  - _body
```
 final SessionStartParams.Body _body()
```
  - _headers
```
 Headers _headers()
```
    The full set of headers in the parameters, including both fixed and additional headers.
  - _queryParams
```
 QueryParams _queryParams()
```
    The full set of query params in the parameters, including both fixed and additional query params.
  - equals
```
 Boolean equals(Object other)
```
  - hashCode
```
 Integer hashCode()
```
  - toString
```
 String toString()
```
  - builder
```
 final static SessionStartParams.Builder builder()
```
    Returns a mutable builder for constructing an instance of SessionStartParams.
    The following fields are required:
    .modelName()

Class SessionStartParams

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Method Detail

xStreamResponse

modelName

actTimeoutMs

browser

browserbaseSessionCreateParams

browserbaseSessionId

domSettleTimeoutMs

experimental

selfHeal

systemPrompt

verbose

waitForCaptchaSolves

_modelName

_actTimeoutMs

_browser

_browserbaseSessionCreateParams

_browserbaseSessionId

_domSettleTimeoutMs

_experimental

_selfHeal

_systemPrompt

_verbose

_waitForCaptchaSolves

_additionalBodyProperties

_additionalHeaders

_additionalQueryParams

toBuilder

_body

_headers

_queryParams

equals

hashCode

toString

builder