Simplify introduces Matcha CLI

Matcha CLI works in the terminal. You bring a request. It reads the files that matter, writes a plan when it needs to, then edits code and runs tests. Changes show up as inline diffs in the same session. When the path is unclear, it plans first. Code waits for your say-so.

Sessions and rules live in ~/.matcha. There is no MatchaCode account and no product cloud. Inference goes to the Provider you choose. MatchaCode is not a model provider. The product itself is free for now. Model usage is billed by your Provider.

A calmer way to ship code.

Matcha CLI reads files and search results to see how the project works, then edits the repo directly. Changes show up as inline diffs in the same session. When the path is unclear, it proposes a plan first. /plan enters plan mode. Code waits for your say-so.

It runs commands and tests, then keeps going from the failure. Inspecting a problem is this turn: fix tests, inspect failures. It is not a separate Debug product.

You can switch models in the same piece of work. /model opens the current Provider's model list without leaving the session. Bring an API key for xAI, OpenAI, or Anthropic, or point at Ollama and other compatible endpoints. Login does not open a browser, and there is no MatchaCode account.

Project conventions can come with you. It reads AGENTS.md, CLAUDE.md, and Cursor rules, and it can connect existing tools through MCP and skills. Rules stay local. There is no plugin marketplace.

These are jobs you can finish with Matcha CLI. They are not customer stories.

When the change is clear, it edits the repo and runs the tests, then keeps going from the result.

When the approach is still unclear, it writes a plan first and does not edit yet. File edits and commands ask first.

When tests are red, it works from the failure: inspect the output and the tests, change the implementation or the assertions, and run them again.

You can also attach a turn to an existing command or script. matcha -p takes a prompt; the agent reads, edits, runs, prints the result, and exits. It runs on your machine. This is not a product cloud, and it is not a CI product.

MatchaCode is a product family. Matcha CLI is the first surface that is available now. The same assistant will later continue in the editor, on the desktop, and on a phone. The IDE plugin, desktop app, and mobile app are coming soon. They are not available today, and they are not downloads.

The CLI is a starting point, not a finished family. What you can use now is the terminal.

Download the CLI, pick a model, and start. macOS and Linux are the primary platforms.

curl -fsSL https://get.matcha.dev | sh

There is no account and no product cloud. MatchaCode itself is free for now. Model usage is billed by the Provider you choose.

Version notes are in the changelog. The CLI 0.01 entry is dated 2026-08-19.

MatchaCode is published by Simplify.

MatchaCode is not an xAI, SpaceXAI, or Grok product, and it is not endorsed by those organizations.