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codemcp

Name: codemcp MCP Server
Author: ezyang

Minimal MCP coding agent for Claude Desktop — read/write/run, nothing else.

codemcp turns Claude Desktop into a usable coding agent without paying for Claude Code. It exposes just enough to be productive: a file reader/writer, a shell runner, and a project init step. Designed to be small, auditable, and easy to bring your own restrictions.

▶ Ver demo 📦 Instalar 💡 Casos de uso

Por qué usarlo

Características clave

Tiny surface area: ReadFile, WriteFile, EditFile, RunCommand, InitProject
Project-scoped config in codemcp.toml per repo — defines allowed commands
Auto-commit per change so you always have a git checkpoint
Single-file install via uvx codemcp
Claude Desktop becomes a real IDE-replacement for free-tier coding

Demo en vivo

Cómo se ve en la práctica

codemcp.replay ▶ listo

0/0

Instalar

Elige tu cliente

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "codemcp": {
      "command": "uvx",
      "args": [
        "codemcp"
      ]
    }
  }
}

Abre Claude Desktop → Settings → Developer → Edit Config. Reinicia después de guardar.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "codemcp": {
      "command": "uvx",
      "args": [
        "codemcp"
      ]
    }
  }
}

Cursor usa el mismo esquema mcpServers que Claude Desktop. La configuración del proyecto prevalece sobre la global.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "codemcp": {
      "command": "uvx",
      "args": [
        "codemcp"
      ]
    }
  }
}

Haz clic en el icono MCP Servers de la barra lateral de Cline y luego en "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "codemcp": {
      "command": "uvx",
      "args": [
        "codemcp"
      ]
    }
  }
}

Mismo formato que Claude Desktop. Reinicia Windsurf para aplicar.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "codemcp",
      "command": "uvx",
      "args": [
        "codemcp"
      ]
    }
  ]
}

Continue usa un array de objetos de servidor en lugar de un mapa.

~/.config/zed/settings.json

{
  "context_servers": {
    "codemcp": {
      "command": {
        "path": "uvx",
        "args": [
          "codemcp"
        ]
      }
    }
  }
}

Añádelo a context_servers. Zed recarga en caliente al guardar.

claude mcp add codemcp -- uvx codemcp

Un solo comando. Verifica con claude mcp list. Quita con claude mcp remove.

Casos de uso

Usos del mundo real: codemcp

Use Claude Desktop as a free Claude Code replacement

👤 Devs on Claude Pro (not Max) who want agentic coding ⏱ ~15 min intermediate

Cuándo usarlo: You don't want to pay for Claude Code but want the same loop in Desktop.

Requisitos previos

Server/skill installed and authenticated — See repo README

Flujo

Init a project

Initialize codemcp in /repos/my-project. Whitelist pytest and ruff only.✓ Copiado

→ codemcp.toml written with those two commands
Iterate

Add a /healthz endpoint and a test for it. Run pytest after.✓ Copiado

→ File edits + green test output, auto-committed

Resultado: Coding-agent workflow in plain Claude Desktop — every step a git commit.

Errores comunes

RunCommand only runs what's whitelisted in codemcp.toml — RunCommand only runs what's whitelisted in codemcp.toml — list every command you'll need upfront.

Combinar con: github · filesystem

Combinaciones

Combínalo con otros MCPs para multiplicar por 10

codemcp + github

Pair with github for complementary capabilities

Use this server together with github to complete a multi-step task.✓ Copiado

codemcp + filesystem

Pair with filesystem for complementary capabilities

Use this server together with filesystem to complete a multi-step task.✓ Copiado

Herramientas

Lo que expone este MCP

Herramienta	Entradas	Cuándo llamar	Coste
ReadFile	path: str	Inspect code before editing	free
EditFile	path, old, new	Make a surgical change	free
RunCommand	command: str	Run tests or scripts whitelisted in codemcp.toml	free

Coste y límites

Lo que cuesta ejecutarlo

Cuota de API: See provider docs for rate limits
Tokens por llamada: Varies by tool
Monetario: See repo README for pricing details
Consejo: Cache tool results and avoid repeated identical calls.

Seguridad

Permisos, secretos, alcance

Almacenamiento de credenciales: Use environment variables; never commit secrets

Salida de datos: Tool calls go to the provider's API as documented

Resolución de problemas

Errores comunes y soluciones

command not in allowlist

Add the command to codemcp.toml under [commands] before asking Claude to run it.

Verificar: cat codemcp.toml

edit didn't match

EditFile uses exact match. Read the file first and copy the exact old string including whitespace.

Verificar: ReadFile and compare

Alternativas

codemcp vs otros

Alternativa	Cuándo usarla	Contrapartida
Claude Code	You're on Claude Max and want first-party integration	Paid; codemcp is free + open source

Más

Recursos

📖 Lee el README oficial en GitHub

🐙 Ver issues abiertas

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