Zeqou Harness in action
Inside Harness
One workspace where agents, models, tools, memory and MCP meet. Everything Harness does serves a single goal: keep developers in flow while AI handles the heavy work.
Use the models you trust
Connect the providers you already rely on and switch between them mid-task. Cloud providers take your own API key, which is encrypted locally and never sent anywhere except to that provider; a local model through Ollama needs no key at all.
MCP servers you add yourself
Harness is an MCP client: you add the servers you want — over HTTP or as a local command over stdio — connect them, and the tools each one publishes become tools the model can call, named with the server they came from. No MCP servers are bundled with the app, and none are connected until you add one.
Another look
Harness in motion — the workspace as it feels day to day.
A second cut of the Harness preview
Get Harness
Available for Windows, macOS, Linux. Free to download.



