June 17, 2025 | ElevenLabs Documentation

Dynamic variables in simulated conversations: Added support for dynamic variable population in simulated conversations, enabling more flexible and context-aware conversation testing scenarios.
MCP server integration: Introduced comprehensive support for Model Context Protocol (MCP) servers, allowing agents to connect to external tools and services through standardized protocols with configurable approval policies.
Burst pricing for extra concurrency: Added bursting capability for workspace call limits, automatically allowing up to 3x the configured concurrency limit during peak usage for overflow capacity.

JSON content initialization: Added support for initializing Studio projects with structured JSON content through the from_content_json parameter, enabling programmatic project creation with predefined chapters, blocks, and voice configurations.

Webhook management: Introduced workspace-level webhook management capabilities, allowing administrators to view, configure, and monitor webhook integrations across the entire workspace with detailed usage tracking and failure diagnostics.

New Endpoints

Create MCP server - Create a new MCP server configuration in the workspace
List MCP servers - Retrieve all MCP server configurations available in the workspace
Get MCP server - Retrieve a specific MCP server configuration from the workspace
Update MCP server approval policy - Update the approval policy configuration for an MCP server
Create MCP server tool approval - Add approval for a specific MCP tool when using per-tool approval mode
Delete MCP server tool approval - Remove approval for a specific MCP tool when using per-tool approval mode

Get workspace webhooks - Retrieve all webhook configurations for the workspace with optional usage information

Agent simulation:
- Simulate conversation - Added dynamic_variables parameter for populating conversation context with runtime values
- Simulate conversation stream - Added dynamic_variables parameter for streaming conversation simulations
Agent configuration:
- Agent platform settings - Added bursting_enabled parameter to control burst pricing for call limits
WebSocket events:
- Enhanced ClientEvent enum to include mcp_connection_status for real-time MCP server monitoring
Conversation charging:
- Added is_burst indicator to conversation metadata for tracking burst pricing usage

Create Studio project - Added from_content_json parameter for JSON-based project setup

User profile:
- Get user - Deprecated can_use_delayed_payment_methods field in user response model

Subscription status:
- Removed canceled and unpaid from available subscription status types, streamlining subscription state management