
Plutocalcdesigner Mcp
io.github.danpeigPublished by GitHub account danpeigv2.5.1Updated Oct 24, 2026
Plutocalc Designer is a software suite for water and wastewater treatment plants design
Overview
MCP server for Plutocalc Designer that lets an assistant list water and wastewater treatment design models, fetch templates and run sizing calculations.
- What you can do
- Check server version, status and license credit balance, and get license help information. List available calculation models, with or without detailed information and manuals. Retrieve a model's name, version, details, input template, reference database entries, units list and manual link. Run a model calculation from a JSON input and get the completed design results. Convert model templates between JSON and readable Markdown.
- When to use it
- Useful for engineers working on water and wastewater treatment plant design who want an assistant to browse Plutocalc Designer models, prepare calculation inputs and run sizing computations without switching to the web tool.
- Requirements
- The README points to a hosted HTTP endpoint, while the manifest describes a local stdio process; the local option needs Node.js, npm and internet access to the Plutocalc Designer API. A license key is required for the license credit check and likely for calculations.
Installation
In SourceWeft
- Open Plutocalcdesigner Mcp in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
Plutocalc Designer MCP Server
MCP server for the Plutocalc Designer REST API, providing access to water and wastewater treatment system design tools through the Model Context Protocol.
Registry Name: io.github.danpeig/plutocalcdesigner-mcp
Version: 2.5.1
MCP server URL: https://www.plutocalc.com/designer/mcp
OpenAPI specs: https://www.plutocalc.com/designer/server/openapi.json
About Plutocalc Designer
Plutocalc Designer is an online engineering tool for sizing water and wastewater treatment systems. Engineers select a design model, fill in a calculation template, and run the computation to receive a completed template with design results. Learn more at https://www.plutocalc.com/designer.
Using Plutocalc Designer from your AI platform
There are three ways of connecting Plutocalc Designer to AI applications:
- Connecting via the MCP server (recommended)
- Connecting directly to the API using OpenAPI specs (alternative)
- Hosting your own instance of the MCP server (for developers)
Connecting via the MCP server (automatic)
The easiest way to use Plutocalc Designer with your AI assistant is through the MCP Registry:
-
In Claude Desktop or your MCP-compatible client, search for:
or
-
Click "Add" or "Install" - The server will be automatically configured.
-
Start using it! Ask your AI assistant:
- "List available wastewater treatment models"
- "Get the template for the stripping tower"
- "Help me design a biological treatment system"
Connecting via the MCP server (manual)
If you need to configure manually, add this to your MCP client configuration:
For Claude Desktop (claude_desktop_config.json):
For other MCP clients:
- Server URL:
https://www.plutocalc.com/designer/mcp - Transport Type: HTTP
- Name: plutocalcdesigner (or any name you prefer)
Connecting directly to the API using the OpenAPI specifications
Another way to connect AI models to Plutocalc Designer is use the API directly. In this case, the model can retrieve instructions from the OpenAPI json specifications available at https://www.plutocalc.com/designer/server/openapi.json
A more detailed description of the API with instructions and examples, suitable for humans or LLMs, can be found in: https://www.plutocalc.com/designer/api.html
Hosting the MCP server
This method hosts the MCP server only, not the Plutocalc Designer. The local server requires internet connectivity to connect to the Plutocalc Designer API.
Use this method if you are facing connectivity issues with Plutocalc Designer MCP server or for development purposes.
The server will start on port 3003 by default (configurable via PORT environment variable).
If you need to check if the server is working, see TEST_CLIENT_README.md for detailed instructions.
Available tools
- server_version - Get Plutocalc Designer server version string
- server_status - Get Plutocalc Designer server status
- license_status - Check license credits balance (requires
licenseKey) - list_models - List available calculation models
- list_models_info - List available models with detailed information including manuals (recommended starting point)
- get_model - Get model name and version (requires
model) - get_model_information - Get detailed model information (requires
model) - get_model_template - Get calculation input template (requires
model) - get_model_referencedb - Get reference database entries (requires
model) - get_model_unitslist - Get supported units list (requires
model) - compute_model - Run model calculation (requires
modelandinput) - json_to_markdown - Convert model JSON template to readable Markdown format (requires
modelandinput) - markdown_to_json - Convert Markdown format back to JSON template (requires
modelandinput) - model_manual - Get URL to the model help/manual page (requires
model) - license_help - Get information about license key requirements
Contact
- Author: Daniel BP
- Email: [email protected]
- Website: https://www.plutocalc.com
- Repository: https://github.com/danpeig/plutocalcdesigner-mcp
- MCP Registry: https://registry.modelcontextprotocol.io (search for "plutocalcdesigner")
Source: README.md at commit 510afc7
Tools
0Version history
1- v2.5.1LatestSep 16, 2026
Score
40% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts
Declare a license in the repository or the registry entry.