Lexicon is a general purpose agent that runs locally on your computer. It is based on OpenAI Codex CLI but is tuned for more general use cases.
You currently need to build this yourself.
Then simply run lexicon to get started:
lexicon
Run lexicon and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Lexicon as part of your Plus, Pro, Team, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Lexicon with an API key, but this requires additional setup. If you previously used an API key for usage-based billing, see the migration steps.
Lexicon can access MCP servers. To configure them, refer to the config docs.
Lexicon supports a rich set of configuration options, with preferences stored in ~/.lexicon/config.toml. For full configuration options, see Configuration.
See the Execpolicy quickstart to set up rules that govern what commands Lexicon can execute.
Lexicon is a fork of OpenAI Codex CLI, licensed under Apache 2.0.
This repository is licensed under the Apache-2.0 License.