Hi Support Team,

We are integrating the OpenProject MCP server into our semantic layer and AI orchestration platform.

We noticed the MCP server exposes:

• search_projects

• search_users

• search_work_packages

However, there does not appear to be any endpoint/tool for retrieving project memberships or users assigned to a specific project.

Current issue:

• search_users only supports:

  • search_term

  • page

• It does not support:

  • project_id

  • project_identifier

  • membership filtering

As a result, we can only infer project users indirectly via work package assignees.

Question:
What is the recommended MCP approach to retrieve:

• all users belonging to a project

• delivery team members

• project memberships

• users associated with a project

without directly querying the OpenProject database or bypassing the MCP server?

Is there:

• an existing hidden/undocumented endpoint

• a recommended orchestration pattern

• a future roadmap item

• or a preferred semantic-layer implementation approach?

We want to keep the MCP server unchanged and implement business semantics in the semantic layer where possible.

Thanks.