Particles

org.linkedparticles/particles · v1.224.6

An append-only ledger of sourced, dated, confidence-scored claims your agent cites and you audit

Website Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add particles -e ANTHROPIC_API_KEY=<ANTHROPIC_API_KEY> -e DATABASE_URL=<DATABASE_URL> -e PARTICLES_CONFIG=<PARTICLES_CONFIG> -- uvx linkedparticles==1.224.6

claude_desktop_config.json

{
  "mcpServers": {
    "particles": {
      "command": "uvx",
      "args": [
        "linkedparticles==1.224.6"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>",
        "DATABASE_URL": "<DATABASE_URL>",
        "PARTICLES_CONFIG": "<PARTICLES_CONFIG>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "particles": {
      "command": "uvx",
      "args": [
        "linkedparticles==1.224.6"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>",
        "DATABASE_URL": "<DATABASE_URL>",
        "PARTICLES_CONFIG": "<PARTICLES_CONFIG>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "particles": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "linkedparticles==1.224.6"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>",
        "DATABASE_URL": "<DATABASE_URL>",
        "PARTICLES_CONFIG": "<PARTICLES_CONFIG>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`ANTHROPIC_API_KEY` Required, secret	Anthropic API key. Required for the tools that call a model — `query` composes a cited natural-language answer, and the semantic half of `lint` reasons over claim pairs. The accessors that only read the store (`particle_show`, `particles_list`, `subjects_`, `events_`, `graph_view`, `quality_repor…
`DATABASE_URL` Optional	SQLAlchemy URL of the belief store to serve, used as given, so write a SQLite path absolute: a relative one opens against the directory the server starts in. Without it, and without PARTICLES_CONFIG, the server serves the store `~/.particles/config.yaml` names (a relative path there is read under `…
`PARTICLES_CONFIG` Optional	Path to the config file holding the rest of the server's settings: additional stores, model selection per purpose, and the `mcp.write.enabled_stores` allowlist that turns the write tools on. This is the supported way to give the server settings. Without it the server reads `~/.particles/config.yaml…

Details

Package	`[email protected]` (PYPI, stdio)
First published	1 Nov 2026
Last updated	1 Nov 2026
Registry name	`org.linkedparticles/particles`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

Pair it with live search

Agents that use Particles often also need current facts. NestDaddy MCP gives your AI today's internet: web search, real-time breaking news and full page reading in one connector.

See NestDaddy MCP

For maintainers

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