Aggregators and gateways · MCP server
Opentabs: MCP server, setup and security
Opentabs is an open-source MCP server that lets an AI agent access web applications through plugins and an authenticated browser session. Its repository has 993 stars and its last commit is from October 24, 2026 and it is licensed under MIT.
| Adoption (stars) | 30/40 | |
|---|---|---|
| Maintenance | 30/30 | |
| Framework (licence, registry, official) | 15/30 |
What Opentabs does
According to its repository: “Plugin-based server and Chrome extension that gives AI agents access to web apps through your authenticated browser session, with a plugin SDK.”
An MCP server gives an AI agent extra tools it calls during the conversation: the agent reads their description, decides to use them and gets the result back. Opentabs is listed under Aggregators and gateways, a category of 141 servers in the directory, where it ranks #14 by stars.
Topics declared by the repository: ai-agents, browser-automation, chrome, chrome-extension, claude-code, open-source.
Installing and connecting Opentabs
No package or remote server is declared in the official MCP registry: you install it from source, following the repository README.
Like any MCP server, you declare it in your client's configuration (Claude Desktop, Claude Code, Cursor, VS Code, Codex…): a name, the command that starts it or its URL, and any environment variables. The client then starts it and lists its tools. Project language: TypeScript. Listed systems: macOS, Windows, Linux.
Security: what to check
An MCP server runs code with the rights you give it, and the model reads its tool descriptions: a malicious or compromised server can hijack the agent. Read the code, or pick a maintained and widely used server, before connecting it.
None of the risk signals we track (system access, secrets, missing licence, abandonment) applies to Opentabs. That does not replace reading the code.
Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.
Project activity and maintenance
Created on February 9, 2026, the opentabs-dev/opentabs repository has 993 stars and 101 forks, with 3 open issues. It has more stars than 92% of the servers in the directory. It received changes this month.
Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.
Verdict
Opentabs is one of the most solid servers in its category: followed, maintained and well framed.
Strengths
- Active project: recent commit
- Widely followed: 993 stars
- Permissive licence (MIT)
Limitations
- Install from source
Alternatives
- GitDiagram18.4K ★
- Mockserver monorepo5K ★
- Paperclip106.8K ★
- Basebalance.cloud — x402 RPC & MCP gateway7.5K ★
- AIHOT8.5K ★
- OpenWork MCP Gateway24.2K ★
Learn more
Frequently asked questions
How do I install Opentabs?
No package is declared in the MCP registry: clone the opentabs-dev/opentabs repository, follow its README, then declare the start command in your client's MCP configuration.
Is Opentabs free?
The code is published under the MIT licence and can be used free of charge.
Is Opentabs safe?
No risk signal found (system access, secrets, licence, abandonment). As with any MCP server, keep rights minimal and read the code before sensitive use.
Is it an official server?
Nothing says so: it is a project published by opentabs-dev on GitHub. Check who maintains it before giving it access.
What are the alternatives to Opentabs?
In the same category: GitDiagram, Mockserver monorepo, Paperclip, and Basebalance.cloud — x402 RPC & MCP gateway. GitDiagram and Mockserver monorepo score higher on our grid.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score