Particles MCP Server

org.linkedparticles/particles

Repository Registry

What is the Particles MCP server?

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

How to install Particles

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

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_report`) work without it.
DATABASE_URL
SQLAlchemy URL of the belief store to serve. Defaults to `sqlite+aiosqlite:///./particles.db` in the working directory.
PARTICLES_CONFIG
Path to a `config.yaml` holding the rest of the engine's settings — additional stores, model selection per purpose, and the `mcp.write.enabled_stores` allowlist that turns the write tools on.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "particles": {
      "command": "uvx",
      "args": [
        "linkedparticles",
        "--from",
        "linkedparticles",
        "particles",
        "mcp",
        "serve"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "PARTICLES_CONFIG": "<YOUR_PARTICLES_CONFIG>"
      }
    }
  }
}

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