LocalFree server, account needed

Particles MCP server

LinkedParticles/particles-engine-py

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

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Install Particles in Claude Code

Claude Code
claude mcp add particles -e ANTHROPIC_API_KEY=... -- uvx linkedparticles
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "particles": {
      "command": "uvx",
      "args": [
        "linkedparticles"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Particles MCP server do?

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

Is the Particles MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Particles run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Particles to Claude Code?

Run: claude mcp add particles -e ANTHROPIC_API_KEY=... -- uvx linkedparticles

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