MCP

The @nesso-how/mcp package is a Model Context Protocol server that gives AI clients access to Nesso documentation and the full relation-type vocabulary. Once connected, models can answer questions about how Nesso works and use the correct relation names when you build graphs yourself in the app or in JSON.

Setup

Claude Desktop

Open claude_desktop_config.json. On macOS it lives at ~/Library/Application Support/Claude/claude_desktop_config.json; on Windows at %APPDATA%\Claude\claude_desktop_config.json.

Add a nesso entry under mcpServers:

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

Save the file and restart Claude Desktop. The Nesso tools will be available to the model automatically.

Cursor

Open Settings -> MCP and add a new server with command npx and args ["-y", "@nesso-how/mcp"].

Other MCP clients

Any client that speaks the stdio MCP transport works. Run npx -y @nesso-how/mcp as the server command. No other configuration is required.

What it can do

Once connected, you can ask your AI client things like:

• “What relation types does Nesso support?” (uses get_relation_types)
• “Show me the Nesso getting started guide” (uses get_nesso_docs)

You can build graphs in app.nesso.how yourself, or ask the model to generate a graph as a JSON file and import it via Graph menu → Import JSON. Use get_relation_types to make sure the model picks valid relation names.

Tools reference

get_nesso_docs

Fetches documentation pages from this site. Call it without a slug to get a table of contents, or with a slug (e.g. "guides/getting-started") to get the full page content.

get_relation_types

Returns the complete list of relation types with their category, line style, symmetry, and semantic coefficients (transitive, inverse, strength, polarity, cardinality). Use this whenever you need valid type names for graph JSON or explanations for the learner.