Tandem bridges browser AI chats to local Claude Code sessions via MCP
u/Single-Two3496 released Tandem, a free MIT-licensed MCP bridge that lets browser-based AI chats like Claude.ai or ChatGPT open and drive real Claude Code TUI sessions in tmux on a local machine.
Score breakdown
Tandem removes the manual copy-paste handoff between browser-based AI planning and local Claude Code execution by creating a live, bidirectional MCP bridge between the two environments.
- 01Tandem is a free, MIT-licensed open-source MCP/devtool created by u/Single-Two3496.
- 02It bridges browser AI chats (Claude.ai or ChatGPT) to real Claude Code TUI sessions running in tmux on a local machine.
- 03The bridge reads CLI responses back into the browser chat and sends replies back down through the CLI, eliminating copy-paste.
Tandem, posted to r/LangChain by its creator u/Single-Two3496, is a free MIT-licensed MCP bridge designed to close the gap between browser-based AI brainstorming and local agentic coding. The author describes a common workflow friction: drafting specs in Claude.ai or ChatGPT, then manually switching to a terminal to drive Claude Code. Tandem automates that handoff by letting the browser chat directly open or resume a Claude Code TUI session in tmux on the local machine, read the CLI output back into the browser, and push replies back down through the CLI — sustaining a continuous planning-and-execution loop without manual copy-paste.
Because the tool runs real commands on the local machine, the author flags security considerations upfront.
Because the tool runs real commands on the local machine, the author flags security considerations upfront. The available controls include a user-owned tunnel, bearer token authentication, and a working-directory (cwd) allowlist. The project is fully open source and hosted on GitHub at https://github.com/Maxmedawar/tandem.
Key facts
- 01Tandem is a free, MIT-licensed open-source MCP/devtool created by u/Single-Two3496.
- 02It bridges browser AI chats (Claude.ai or ChatGPT) to real Claude Code TUI sessions running in tmux on a local machine.
- 03The bridge reads CLI responses back into the browser chat and sends replies back down through the CLI, eliminating copy-paste.
- 04It is not a LangChain package but is related to agent-orchestration workflows.
- 05Because it runs real commands locally, it includes a user-owned tunnel, bearer token auth, and a cwd allowlist as security controls.
- 06The source code is publicly available on GitHub at https://github.com/Maxmedawar/tandem.
Topics
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