Before Users Do
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Before Users DoTest the new signup flow on the preview URL and give me a fix report."
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Before Users Do
Browser-backed QA for coding agents.
Before Users Do is a hosted MCP server that lets Codex, Cursor, and other compatible coding agents test a reachable web app, collect browser evidence, and return a fix-ready report before the feature ships.
Install the QA MCP · Read the setup guide · View the official MCP Registry record
What the agent gets
Browser-backed flow testing against a reachable preview
Screenshots and recordings tied to the affected step
Console errors, page errors, and failed network requests
An explicit
pass,needs_fix,needs_review, ortimed_outoutcomeA focused report the coding agent can use for the next change
Related MCP server: mario-playwright-mcp
Hosted MCP endpoint
https://mcp.beforeusersdo.com/mcpCreate an MCP key through the public setup guide, then add the hosted connection to your MCP-capable coding agent.
Why QA MCP instead of browser control alone?
A browser tool can click and type. Before Users Do adds the QA contract around those actions: a test goal, an evidence trail, a trustworthy outcome, and a handoff back to the code.
Durable Playwright or end-to-end test suites are still valuable for known regressions. Before Users Do is designed to help the agent inspect the newly finished flow and catch problems that have not become tests yet.
This server cannot be deployed
Maintenance
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