# Hand off routine coding from Codex to Codemind

2026-10-24 by Codemind

- Codemind
- Codex
- MCP

Codex can send routine coding tasks to Codemind, a build service it calls over MCP. Codemind writes the code and tests it against your acceptance criteria, then returns the files for Codex to add to your project. Codex stays focused on planning and review while the writing and testing happen outside your Codex usage.

## Setup

Setup takes one paste. Copy the setup prompt from the Codemind Codex page and paste it into Codex. Because Codemind sits outside your project, Codex will ask you to add a short entry to your Codex config file. Add the entry, then restart Codex from a new terminal. A recent CLI is required: version 0.160.1 supports remote MCP, while version 0.27.0 does not.

## Connecting

No sign-up and no key are needed; a free account is created the moment Codex connects. Restarting creates a new free account, so use the quickstart on the page if you want an account that lasts. To confirm the connection, ask Codex to call the Codemind tool list_builds. An empty list means you're connected.

## Running builds

Codex can send several tasks and move on to the next one while they run. On the free plan, two builds run side by side. Code is tested against your acceptance criteria, and a verified build only reaches your session once it passes. You can also update files you already have: send the current file along with the task and get back the complete modified version.

## What it costs

No card is required. You get 100 verified builds in your first month, then 50 a month after that. Once that allowance is used, each verified build costs $0.10. A build that fails costs nothing.

## Supported languages

Codemind builds JavaScript and TypeScript, covering Cloudflare Workers, Node, and React. Other languages are not yet supported.