What is Mutagent

Mutagent builds and improves AI agents. You describe the agent you want, or point at one you already run, and Mutagent takes it through the agentic development lifecycle (ADLC), five stages that end in a loop: Optimize loops back to Evaluate: fix, re-evaluate, repeat until the agent passes. Shipping the agent is a separate step after the loop. Every stage leaves a file you can read: a spec, the agent, a scored report, a ranked list of remedies. Nothing changes your agent until you approve it.

The parts of the product

Part	What you use it for	Start here
Helix (`helix`)	The coding agent that runs the lifecycle on your machine. Spec, build, evaluate, diagnose and optimize an agent from one terminal. Needs only a model provider key.	Quickstart
The `mutagent` CLI	Sign in, pick a workspace, store LLM provider keys in the workspace, manage Environments (named sets of variables and secrets that tools in cloud runs read; see Environments) and managed agents. Almost every command has a `--json` form for scripts and coding agents (the Helix launch commands print Helix’s own output).	CLI overview
The web app (app.mutagent.io)	Your organization, workspaces, members and API keys. Under Configuration: the workspace’s LLM providers, Environments, and the GitHub and Slack connections.	Using the web app · Accounts and workspaces
Cloud sessions and managed agents	Run Helix, or an agent you deployed from an `agent.md` folder, in a cloud sandbox instead of on your laptop.	Helix Cloud · Managed agents quickstart
The SDK	The same account, workspace, LLM provider and Environment resources from TypeScript or Python.	SDK overview

What you need

To run the lifecycle locally: the helix binary and a key for one model provider (Anthropic, OpenAI, Google and others). No Mutagent account is needed; Helix talks to the provider with your credentials.
To use the hosted parts (workspaces, stored LLM providers, Environments, the SDK): a free account at app.mutagent.io and mutagent login.

Quickstart

Install Helix, sign in, and run a first loop in about five minutes.

Supported integrations

LLM providers, sandbox providers, trace sources and apply targets.

What is Helix

The five stages in detail, and the three ways to run Helix.

What's new

Dated changes to Helix, the CLI and the platform.

Overview

Sandbox

Managed agents

Setup

The parts of the product

What you need

Next

Quickstart

Supported integrations

What is Helix

What's new

​The parts of the product

​What you need

​Next

Quickstart

Supported integrations

What is Helix

What's new

The parts of the product

What you need

Next