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Multiplayer
Debugging agent that gives your coding agent full-stack unsampled production data to fix real bugs
0Visit Multiplayer
https://www.multiplayer.app
About Multiplayer
Multiplayer is a debugging agent that connects your existing coding agent to production so bugs get fixed against real data rather than against a guess. The problem it names is specific and current: coding agents produce plausible fixes when they cannot see what actually happened, and the result is PR slop — changes that look reasonable, pass review, and do not address the fault. Multiplayer's answer is better data. It captures full-stack, auto-correlated, unsampled telemetry spanning frontend screens through backend traces and logs, including the things conventional observability tools discard — request and response bodies and headers from every component in the system. That gives the agent the actual failing request rather than an aggregate metric. Installation is one copy-paste in the terminal via a global npm package, and it runs locally, which matters because local operation is what lets it eliminate PR slop before a pull request exists rather than reviewing one afterwards. The published use cases cover debugging AI-generated code, feature development, multi-agent development workflows, failing tests and mobile development. The free tier is unusually generous — unlimited bug fixes forever with full control — and the paid tier at $12 per user adds SSO/SAML and 30-day data retention.
Key Features
Multiplayer Pros & Cons
✅ Pros
- +Unsampled request/response capture is exactly the data agents lack when guessing at a fix
- +Free tier with unlimited bug fixes is genuinely usable rather than a trial
- +$12 per user is far below typical observability seat pricing
- +Local operation means production data does not have to leave your control to use it
- +Agent-agnostic — it improves whichever coding agent you already run
⚠️ Cons
- −Capturing unsampled request and response bodies raises real data-handling questions
- −30-day retention is short for intermittent bugs that surface quarterly
- −Value depends on already using a coding agent for fixes
- −Full-stack instrumentation is more setup than the one-line install implies for complex systems
Who Is Multiplayer Best For?
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Alternatives to Multiplayer
View all Multiplayer alternatives →Agent connectivity: not yet verified