AI MCP Proxy

AI License Required
Related Documentation
Made by
Kong Inc.
Supported Gateway Topologies
hybrid db-less traditional
Supported Konnect Deployments
hybrid cloud-gateways serverless
Compatible Protocols
grpc grpcs http https
Minimum Version
Kong Gateway - 3.12
Tags

3.13.0.0

Release date 2025/12/18

Feature

  • Added support for MCP ACL control.

  • Added support for cookie in OpenAPI spec when doing MCP conversion.

  • Added support for structured output from MCP conversion.

Bugfix

  • Fixed an issue where path traversal can be done with path parameter.

  • Fixed an issue where MCP server could not call upstream when proxy protocol is used.

  • Fixed an issue where failing to fetch tools cache was not handled properly.

  • Fixed an issue where forwarding client headers to upstream could not be disabled.

  • Fixed an issue where trusted ip relative headers were forwarded upstream.

  • Fixed an issue where tools/call could accept malformed requests and generate wrong responses.

  • Fixed an issue where path invalid error was not handled properly.

  • Fixed an issue where we could not override the upstream’s scheme when converting MCP tool to RESTful API.

  • Fixed an issue where MCP server could not call upstream when self-signed certificate is used in Kong.

  • Fixed an issue where mcp proxy is not parsing default values properly.

  • Fixed an issue when using passthrough-mode, tools without tool ACL do not apply default ACL.

3.12.0.2

Release date 2025/12/10

Bugfix

  • Fixed an issue where failing to fetch tools cache was not handled properly.

  • Fixed an issue where trusted ip relative headers were forwarded upstream.

  • Fixed an issue where tools/call could accept malformed requests and generate wrong responses.

  • Fixed an issue where path invalid error was not handled properly.

  • Fixed an issue where we could not override the upstream’s scheme when converting MCP tool to RESTful API.

3.12.0.1

Release date 2025/11/18

Bugfix

  • Fixed an issue where MCP server could not call upstream when proxy protocol is used.

  • Fixed an issue where forwarding client headers to upstream could not be disabled.

  • Fixed an issue where MCP server could not call upstream when self-signed certificate is used in Kong.

3.12.0.0

Release date 2025/10/01

Feature

  • The plugin now forwards client headers when calling the tool.

Something wrong?

Help us make these docs great!

Kong Developer docs are open source. If you find these useful and want to make them better, contribute today!