From frontend clicks to backend traces, all in one timeline

Full stack session recordings are what makes the Multiplayer debugging agent work where others don't: unsampled, pre-correlated, full-stack runtime data.
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Background

“Multiplayer saves my team hours. With frontend and
backend context, repro steps, and user feedback all
in one place, we go from bug report to fix in no time.”

Aurelia D. avatar
Aurelia D.Customer Success Engineer, MarTech Vendor

One bug, one prompt, one merge-ready PR

Problem icon

Problem

  • Painful bug reproduction with incomplete or missing runtime context
  • Fragmented runtime data across tools, agents, and MCP servers
  • Ineffective AI workflows producing wrong or hallucinated fixes and PR slop
  • Wasted time and tokens sifting through walls of irrelevant logs and metrics
  • Slow and siloed cross-team escalations and poor collaboration

Solution

  • Capture unsampled, pre-correlated, full-stack session data automatically: everything needed to understand and reproduce a bug.
  • Runtime data in a single timeline from frontend screens to backend traces and logs, including what observability tools miss: request and response content and headers from every component in your system.
  • Multiplayer manages the entire process from bug identified to bug fixed: data gathering, triage, deduplication, coding agent prompting, PR creation, and user notification.

Full-stack session capture. Faster debugging.

Try it now1 month free · no credit card required
Click through the steps to see how it works:
Install

Install in your console with one command. Run it locally. No source code access required. Works next to your favorite coding agent: Claude Code, Copilot, Codex, Cursor, …

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Why choose Multiplayer full stack session recording?

Fix bugs faster

Fix bugs faster

Full-stack, session-based data collection means your coding agent automatically receives exactly what it needs to fix the bug, deduplicated, pre-correlated. No wasted time or tokens grepping through unrelated data.
Improve user experience

Improve user experience

Multiplayer identifies new issues automatically, without waiting for a user report or an alert threshold to be crossed. Bugs that would have gone unnoticed for days get surfaced immediately.
Better AI workflows

Better AI workflows

Every fix your coding agent writes is grounded in runtime data, limiting hallucinated fixes and wasted time verifying AI outputs and cleaning them up.
Faster feature development

Faster feature development

Multiplayer keeps developers in feature development mode by automatically managing the whole process from bug identified to bug fixed.
Catch hard-to-reproduce bugs

Catch hard-to-reproduce bugs

Capture elusive, transient, and hard-to-reproduce bugs the moment they occur, including the ones that fall below your error threshold and never appear in Sentry or your APM.
Streamline team collaboration

Streamline team collaboration

Share merge-ready PRs and full stack session replays with a single link. Everyone, from engineers to SREs to support, is instantly aligned, reducing escalations and resolution time.
Gain backend clarity

Gain backend clarity

Turn your backend from a black box into an open book. Get un-sampled, full-stack data, with nothing missing, including request/response content and headers from deep within your system.
Prevent technical debt and AI workslop

Prevent technical debt and AI workslop

Coding agents ship code fast, but without a closed debugging loop that velocity gets offset by poor software quality and debugging overhead. Multiplayer closes the debugging loop and removes the overhead.
Improve developer experience

Improve developer experience

Instead of jumping between frontend tools, APM dashboards, log aggregators, and architecture diagrams, you get high-quality PRs. Debugging goes from painful context switching to focused problem solving.

Getting started with Multiplayer
is easy.

One copy/paste in your terminal, and you’re done.

npm install -g @multiplayer-app/cli && multiplayer

More languages and CLI SDKs can be found in our documentation.

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