costwright MCP Server: Install & Setup

Install costwright in Claude Code

Claude Code

claude mcp add costwright-agent-budget-analysis -- npx -y costwright-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "costwright-agent-budget-analysis": {
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the costwright MCP server do?

Static worst-case token-budget analysis for LLM-agent workflows + signed budget certificates.

Is the costwright MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does costwright run locally or remotely?

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

How do I add costwright to Claude Code?

Run: claude mcp add costwright-agent-budget-analysis -- npx -y costwright-mcp

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