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emdash

Emdash is the Open-Source Agentic Development Environment (🧡 YC W26). Run multiple coding agents in parallel. Use any provider.

Links

Repository

README

From the repo.

Emdash

Emdash is a desktop app for running AI coding agents in parallel. Each task runs in its own Git worktree, so you can explore multiple fixes or features at once, review the diffs, and merge what works.

It works with local projects and remote machines over SSH. Bring the CLI agents you already use: Claude Code, Codex, OpenCode, Amp, and more.

Emdash product screenshot

What You Can Do

  • Run multiple coding agents at once without juggling terminals.
  • Keep every agent isolated in its own Git worktree and branch.
  • Send issues and tickets from Linear, GitHub, Jira, GitLab, Asana, Featurebase, Monday.com, Forgejo, or Plain into an agent.
  • Review diffs, create pull requests, inspect CI checks, and merge from one place.
  • Work locally or on your own remote machines over SSH/SFTP.

Installation

PlatformInstall
macOSbrew install --cask emdash · Apple Silicon · Intel
WindowsInstaller · Portable
Linux x64AppImage · DEB · RPM
Linux ARM64AppImage · DEB · RPM

See the latest release for all desktop builds.

Agents

Emdash detects installed provider CLIs automatically. It supports agents like Claude Code, Codex, Cursor, OpenCode, Amp, Devin, Qwen Code, Droid, and GitHub Copilot.

For agents with lifecycle-hook support, Emdash installs marker-tagged entries in the agent's user-level config. These hooks let Emdash track status, notifications, and resumable sessions, and silently do nothing when the agent runs outside an Emdash session.

See Providers for the full list, setup commands, and provider-specific behavior.

Remote Projects

Connect to remote machines with SSH/SFTP and run the same parallel workflow on remote codebases. Emdash supports SSH agent, key, and password authentication, with credentials stored in your OS keychain.

See Remote Projects for setup details.

Privacy

Emdash is local-first. App state is stored in a local SQLite database, and Emdash does not send your code or chats to Emdash servers.

Agent CLIs may send code, prompts, and context to their own providers. Their data handling depends on the provider you choose.

Telemetry is optional and can be disabled in Settings or by launching with:

TELEMETRY_ENABLED=false

See Telemetry for details.

Contributing

Contributions are welcome. Read the Contributing Guide, open an issue, or join the Discord.

License

Licensed under the Apache-2.0 license.

Collected info

  • ★ 5,829 stars
  • ⎇ 606 forks
  • Language: TypeScript
  • Source updated: 9/25/2026

Config for your environment

Replace {MCP_ENDPOINT_URL} with this MCP’s endpoint URL (from its repo or docs above). No API key — you connect directly.

Tool

OS

Config file: ~/.cursor/mcp.json

{
  "mcpServers": {
    "mcp-server": {
      "url": "{MCP_ENDPOINT_URL}"
    }
  }
}

Paste into mcpServers in the config file. Restart Cursor after saving.

If this MCP is also published on mcpchannel.ai, you can subscribe from Browse and use the gateway config there instead.