June 17, 2025

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 ElevenCreative 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.

View API changes

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 ElevenCreative 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