Install it anywhere.

One key, then one click — or one command — in the client you already use.

Step 1 — your API key

Paste a key you already have, or mint a free one. Everything below rewrites itself with it, so there is nothing left to edit by hand.

No key yet — the snippets below carry a placeholder you would have to replace.

The key stays in this page. It is written into the install links and commands below, which run on your machine — it is never sent back to us, and this page forgets it when you close the tab.

One click

These clients accept an install link. Click, confirm in the app, done.

Cursor

Opens Cursor and asks you to confirm the server.

Add to Cursor

LM Studio

Local models, same server. LM Studio 0.3.17 or later.

Add to LM Studio

One command

Copy, paste in a terminal, press return. Each one writes the config for you.

Claude Code 

        


        

          

            Gemini CLI
            
          

          

        


        

          

            VS Code — command line
            
          

          

        

      

    


    

      
One paste

      

        Everything else speaks the same mcpServers block. Paste it into the
        client's MCP config and restart the app.
      


      

        mcp config
        
      

      


      
    
        
  • Windsurf~/.codeium/windsurf/mcp_config.json
    • 
        
  • ClineMCP Servers panel → Configure MCP Servers
    • 
        
  • Roo CodeMCP settings → Edit Global MCP
    • 
        
  • Continue~/.continue/config.yaml— under mcpServers
    • 
        
  • GooseSettings → Extensions → Add custom extension (STDIO)
    • 
        
  • Claude Desktop, manuallyclaude_desktop_config.json
    • 
      


      

        Two clients that spell it differently

        
Zed calls it context_servers, in
          ~/.config/zed/settings.json:

        

          zed settings.json
          
        

        


        
Codex CLI uses TOML, in
          ~/.codex/config.toml:

        

          codex config.toml
          
        

        

      

    


    
    

      
Where it does not go yet

      

        ChatGPT connectors, and Claude on the web or on a phone, only accept a
        remote MCP server reached over HTTP. Ultimath's MCP server runs locally, next to
        your client, so it cannot be added there. A hosted transport is on the roadmap.
      

      

        Until then the REST API covers that ground: one POST, the same eight
        engines, no client required.
      

    


    

      Any MCP client that runs a local command will work — the server is
      npx -y ultimath-mcp with ULTIMATH_API_KEY in its environment, and
      it needs Node.js 18 or later. Something missing or broken?
      contact@ultimath.ai.