The MCP time travel debugger for your coding agent.
Replay.io is a time-travel debugging platform that captures the full browser runtime—every DOM change, network request, console log, and state update—and turns failures into root causes with specific fixes. Originally built for JavaScript developers to record and replay browser sessions, Replay has evolved into an AI-native debugging tool with an MCP server that enables coding agents to see and diagnose runtime bugs they couldn't otherwise detect. When a test fails or a user hits a bug, Replay provides a complete recording of the execution so teams can pinpoint the exact cause without manual reproduction. Trusted by engineering teams at React, Vercel, Metabase, Apollo GraphQL, and others, Replay eliminates the guessing cycle that slows down both human developers and AI coding agents.
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