Rillsoft Project

Rillsoft Project MCP server

Deutsch

Rillsoft AI is the AI gateway to Rillsoft Project, the specialist solution for multi-project resource and capacity planning in mid-sized industrial companies: an MCP server built into Rillsoft Project 10, on top of its scheduling engine – not on top of a task list.

The server runs inside the visible, running Rillsoft Project on Windows and exposes the open project to an AI assistant or a script over the Model Context Protocol: project structure and schedule, roles, people, teams, machines and material, candidate search and staffing assistants, capacity analysis, baselines and plan/actual comparison, progress and status date, the resource pool, undo and redo.

This repository contains documentation, client configuration and the npm launcher (launcher.js, see Install via npx). The server itself is part of the Rillsoft Project 10 desktop application; the launcher only forwards to it, and there is no hosted endpoint.

Full documentation: https://rillsoft.ai/en/mcp/

At a glance

What it is not

• Not a task, to-do or Kanban tool, and not a platform for chat, wiki or team collaboration.
• Not a standalone AI product or chat plug-in, but AI access to Rillsoft Project as a whole – product, editions and pricing are on www.rillsoft.com.
• Not an AI that schedules on its own: Rillsoft Project calculates dates, workload and the critical path; the AI reads the result.
• Not a cloud service: the server is reachable on 127.0.0.1 only, inside the open Rillsoft Project. Rillsoft sends nothing; what your AI client sends is governed by its provider's privacy policy.
• Not a team server: there is no remote access.
• Not a portfolio editor: portfolios can be opened and evaluated, but not changed.

Set up

1. Enable the server. In Rillsoft Project open Settings → MCP server, set the active switch and leave read-only mode switched on for now. Alternatively start RillPrj.exe /mcp (port 3928) or RillPrj.exe /mcp:8123 (another port) for one session. Check: the status line shows "running on port 3928".

2. Connect your AI client with clients/generic.json:

   {
     "mcpServers": {
       "rillsoft-project": {
         "type": "http",
         "url": "http://127.0.0.1:3928/mcp"
       }
     }
   }
   

   With an API key set in the settings, use clients/generic-api-key.json (Authorization: Bearer <KEY>). Ready-made entries per client:

   Client	File	Where it goes	Verified
   Claude Code	claude-code.mcp.json	.mcp.json in the project folder, or claude mcp add --transport http rillsoft-project http://127.0.0.1:3928/mcp	12 Oct 2026, 2.1.296
   Claude Desktop	claude-desktop.json	claude_desktop_config.json (Settings → Developer → Edit Config); bridge mcp-remote needs Node.js	12 Oct 2026, 2.31226
   Codex	codex.toml	~/.codex/config.toml, or codex mcp add rillsoft-project --url http://127.0.0.1:3928/mcp	12 Oct 2026, CLI 0.162
   VS Code	vscode.mcp.json

Every mutating call is one ordinary undo step in Rillsoft Project – you take it back with Ctrl+Z like any of your own edits.

Step by step with success checks: Get started.

Install via npx (launcher)

For catalogues, registries and clients that only start stdio servers there is an npm package, @rillsoft/rillsoft-project-mcp, built from this repository. It is a launcher, not the server:

• With Rillsoft Project 10 running it forwards every request over stdio to the endpoint http://127.0.0.1:3928/mcp. The address is fixed; there is no environment variable for the address and no API key. If an API key is set in Rillsoft Project, the launcher reports the 401 – use the HTTP configuration above instead. For diagnostics only, RILLSOFT_MCP_LOG=<file> writes the requests and answers of a session to a log file.
• Without Rillsoft Project (not running, or not Windows) it answers initialize and tools/list itself from tools-list.json – the same 118 tools as the program – and every tools/call with isError: true and a hint. This is what lets catalogues show the tools on Linux.

{
  "mcpServers": {
    "rillsoft-project": {
      "command": "npx",
      "args": ["-y", "@rillsoft/rillsoft-project-mcp"]
    }
  }
}

Requires Node.js 18 or later; real results only on Windows with Rillsoft Project 10 running. Customers do not need the launcher: the configurations above connect directly to the running program.

Install as Claude plugin

This repository is also a plugin for Claude Code and Cowork (.claude-plugin/). In Claude Code:

/plugin install rillsoft-project --marketplace rillsoft/rillsoft-project-mcp

What the plugin does on your machine:

• It starts one local MCP server, node ${CLAUDE_PLUGIN_ROOT}/launcher.js (Node.js 18 or later), the same launcher as the npm package above.
• The launcher talks only to http://127.0.0.1:3928/mcp, the MCP endpoint of Rillsoft Project 10 running on the same computer. It sends no data anywhere else, collects no telemetry, needs no account and no API key.
• Without Rillsoft Project running it reads tools-list.json from the plugin folder and lists the tools; every tool call then answers with a hint instead of a result.
• It writes a log file only if you set RILLSOFT_MCP_LOG=<file> yourself.

Your AI client sends the project data that the tools return to its provider, as with every MCP server. Local plugin servers run in Claude Code and Cowork; the chat in Claude Desktop ignores them – use the configuration under “Set up” there.

If something is stuck

Tool catalogue and contract

Tool names carry the prefix rillsoft_ and are English in every language build; arguments, result fields, enum values and error codes are stable, messages follow the language of the running Rillsoft Project. How tools/list, schemas, errors, undo, read-only mode and sessions work: Developers: the MCP server contract.

The complete tool catalogue – 118 tools of Rillsoft Project 10.0.626.0 with title, access class, parameters and description – is in TOOLS.md. It is generated from tools/list of the running program by scripts/generate_tools.py, never edited by hand; the raw result, including the output schemas, is in tools-list.json.

Links

• MCP server: https://rillsoft.ai/en/mcp/
• Get started: https://rillsoft.ai/en/get-started/
• Developers: https://rillsoft.ai/en/developers/
• Prompt library: https://rillsoft.ai/en/prompts/
• Product: https://www.rillsoft.com/mcp-server/
• Official MCP Registry: ai.rillsoft/rillsoft-project (entry)

Provider

Rillsoft GmbH, Leonberg, Germany – software for scheduling, resource and multi-project planning. Rillsoft Project is proprietary software; this repository contains its MCP documentation and the launcher.

License

The documentation and the tool catalogue in this repository are licensed under CC BY 4.0; the launcher code (launcher.js) under the MIT License. Rillsoft Project itself, including its MCP server, is proprietary software of Rillsoft GmbH and is not covered by either license.