MCP Connector
Anypoint Connector for MCP (MCP Connector) uses the Model Context Protocol (MCP) to enable AI clients that support MCP to invoke and interact with APIs, connectors, and apps.
Guide: MCP Connector User Guide
1.3.0
November 13, 2025
What’s New
-
The MCP Server - On New Session Listener source now supports custom rejection headers with the new Reject With Headers field.
Compatibility
| Software | Version |
|---|---|
Mule |
4.9.6 and later |
OpenJDK |
17 |
MCP Java SDK |
0.11.2 |
Fixed Issues
| Issue Resolution | ID |
|---|---|
In the MCP Server - On New Session Listener source, the Reject With Status Code field now correctly returns custom rejection status codes instead of defaulting to 500. |
W-19387519 |
The connector now properly cleans up tracked inbound requests even when exceptions occur during message processing, preventing memory leaks that could accumulate over time. |
W-20037035 |
1.2.1
September 11, 2025
Compatibility
| Software | Version |
|---|---|
Mule |
4.9.6 and later |
OpenJDK |
17 |
MCP Java SDK |
0.11.2 |
Fixed Issues
| Issue Resolution | ID |
|---|---|
The MCP server now responds with HTTP 404 for expired sessions, and the MCP client now properly handles session expiration by creating a new session when receiving HTTP 404 responses. |
W-19178802 |
Connection and disconnection handling is now improved because disconnect methods are now properly subscribed and executed. |
W-19264682 |
1.2.0
August 6, 2025
What’s New
-
MCP Connector now supports distributed tracing.
Compatibility
| Software | Version |
|---|---|
Mule |
4.9.6 and later |
OpenJDK |
17 |
MCP Java SDK |
0.10.0 |
1.1.0
July 18, 2025
What’s New
-
A Default Request Headers parameter is added to both the SSE Client and Streamable HTTP Client connection types within the MCP Connector’s Client configuration. This parameter lets you specify custom headers to send with every request to the MCP server.
Compatibility
| Software | Version |
|---|---|
Mule |
4.9.6 and later |
OpenJDK |
17 |
MCP Java SDK |
0.10.0 |
Fixed Issues
| Issue Resolution | ID |
|---|---|
Serialization errors with ObjectStore v2 no longer occur. |
W-19045311 |
1.0.0
June 26, 2025
What’s New
-
MCP Connector 1.0.0 is not backward-compatible with the 0.1.0-BETA version of this connector. For more information, see Upgrading MCP Connector to Version 1.0.0.
-
Support for the Streamable HTTP transport method is added.
-
You can now add custom response headers on every exposed endpoint (including
/sse,/messages, and the new/mcp). -
You no longer need to add the
mule.http.service.implementation=NETTYsystem property.
Compatibility
| Software | Version |
|---|---|
Mule |
4.9.6 and later |
OpenJDK |
17 |
MCP Java SDK |
0.10.0 |
0.1.0-BETA (Deprecated)
April 15, 2025
What’s New
This is a new connector.
Unresolved include directive in modules/ROOT/pages/connector/mcp-connector-release-notes-mule-4.adoc - include::connectors::partial$beta-connector-disclaimer.adoc[]
For more information, see the MCP Connector User Guide.
Compatibility
| Software | Version |
|---|---|
Mule |
4.9.3 and later |
OpenJDK |
17 |