costwright — agent budget analysis MCP Server

by hernaninversoio.github.hernaninverso/costwright-mcpv0.1.1

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

0Node.jsstdioofficial registry

context tax

queued

security

queued

cold start

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freshness

Slowing3mo ago

Install costwright — agent budget analysis MCP server

claude mcp add costwright -e COSTWRIGHT_API_KEY='<costwright-api-key>' -- npx -y costwright-mcp

{
  "mcpServers": {
    "costwright": {
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ],
      "env": {
        "COSTWRIGHT_API_KEY": "<costwright-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "costwright": {
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ],
      "env": {
        "COSTWRIGHT_API_KEY": "<costwright-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "costwright": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ],
      "env": {
        "COSTWRIGHT_API_KEY": "<costwright-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "costwright": {
      "command": "npx",
      "args": [
        "-y",
        "costwright-mcp"
      ],
      "env": {
        "COSTWRIGHT_API_KEY": "<costwright-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
COSTWRIGHT_API_KEY	—	yes	API key for costwright (RapidAPI key or direct Bearer). Only needed for check/certify; verify/pubkey are public.

Freshness

Slowing — last maintenance signal 3mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-06-30 · 3mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-06-30 · 3mo ago · official registry · v0.1.1

FAQ

›How do I install the costwright — agent budget analysis MCP server in Claude Code?

Run: claude mcp add costwright -e COSTWRIGHT_API_KEY='<costwright-api-key>' -- npx -y costwright-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does costwright — agent budget analysis require an API key?

Yes. It expects COSTWRIGHT_API_KEY, of which 1 is a secret.

›Can I use costwright — agent budget analysis as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is costwright — agent budget analysis in the official MCP registry?

Yes, as io.github.hernaninverso/costwright-mcp.