PluginBench
MCP Server

costwright — agent budget analysis MCP Server

io.github.hernaninverso/costwright-mcp

What is the costwright — agent budget analysis MCP server?

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

How to install costwright — agent budget analysis

Copy-paste configuration for popular MCP clients.

transport: stdio
Config generated by PluginBench — verify against the source before use.
Environment / auth
  • COSTWRIGHT_API_KEY
    secret

    API key for costwright (RapidAPI key or direct Bearer). Only needed for check/certify; verify/pubkey are public.

Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "costwright-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ],
      "env": {
        "COSTWRIGHT_API_KEY": "<YOUR_COSTWRIGHT_API_KEY>"
      }
    }
  }
}
Cursor
~/.cursor/mcp.json
{
  "mcpServers": {
    "costwright-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ],
      "env": {
        "COSTWRIGHT_API_KEY": "<YOUR_COSTWRIGHT_API_KEY>"
      }
    }
  }
}
Windsurf
~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "costwright-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ],
      "env": {
        "COSTWRIGHT_API_KEY": "<YOUR_COSTWRIGHT_API_KEY>"
      }
    }
  }
}
VS Code
.vscode/mcp.json
{
  "servers": {
    "costwright-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ],
      "env": {
        "COSTWRIGHT_API_KEY": "<YOUR_COSTWRIGHT_API_KEY>"
      }
    }
  }
}
Claude Code
claude mcp add costwright-mcp --env COSTWRIGHT_API_KEY=<YOUR_COSTWRIGHT_API_KEY> -- npx -y costwright-mcp

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costwright — agent budget analysis MCP Server | PluginBench