Introducing Coincide

Coincide runs each agent through its own command-line tool, with the sign-in or API key you already have. Nothing goes through a Coincide server, and nothing is resold. It’s MIT-licensed, and the source is on GitHub.

What it does

• Switch agents mid-thread. Hand a thread from Claude Code to Codex, or any other agent, and the next one gets a recap of what it missed and keeps going in the same folder. How switching works.
• Run them at the same time. Projects and threads with search, pinning and archiving, and a ⌘K command palette.
• Agents keep working after you quit. Turns run in a background agent host.
• Approve right in the thread. Plan mode, approvals or full access, and questions answered inline.
• Git built in. Diffs, per-turn checkpoints, worktrees, commits, pushes and pull requests.
• A terminal and a browser in every thread, which agents can drive when you allow it, with password filling and Bitwarden passkeys.
• Bots with a personality and a routine, scheduled tasks, Computer Use (off by default), dictation and a usage dashboard.

Install

Download the notarized DMG, or install it from the command line:

It’s a universal app for Apple silicon and Intel Macs running macOS 26 or later.

Launch day, everywhere

• YouTubethe launch video
• DEVthe launch article
• Blueskylaunch post with the video
• Mastodonlaunch post with the video
• daily.dev“I built a native Swift harness…”, November 2
• Product Huntlaunched November 2

Feedback, bug reports and stars are all welcome, on GitHub or in the Discord.