Purpose-built for developers working with coding agents
Teams are no longer using a single coding agent, they're chaining them. As the chain gets longer, the surface area for bugs grows, while the data problem stays unsolved. Every agent in the chain leverages the same observability data to “see into the system”, inheriting every limitation of traditional observability: sampled traces, missing correlation, context that stops at system boundaries.
Multiplayer is purpose-built to sit at the runtime layer and catch any bugs that the chain produces, regardless of which agent produced it, ensuring that AI-generated code is functionally correct.
The perfect companion for coding agents
Multiplayer runs locally next to your favorite coding agent and captures full-stack, unsampled session data (including data observability tools miss!) And, we only save data when something goes wrong.
Our debugging agent manages the whole process from bug identified to bug fixed: data gathering, intelligent triage and issue deduplication, coding agent prompting, PR creation and user notification.
Key benefits
The result is what developers actually want from AI-assisted development:
Quality keeps pace with velocity
Coding agents ship code fast, but without a closed debugging loop, that velocity gets offset by poor software quality and debugging overhead. Multiplayer monitors continuously, surfaces issues the moment a session reveals them, and grounds every fix in full-stack, unsampled, pre-correlated session data, so the productivity gain is real.
No more AI workslop
Multiplayer captures full-stack session data, auto-correlated across your entire system, so every fix your coding agent writes is grounded in what actually happened, limiting hallucinated fixes and wasted time verifying AI outputs and cleaning them up.
One source of runtime truth
Every agent in your chain reaches for observability data to see into your system, pulling from multiple sources, MCP servers, and APIs. Multiplayer replaces that sprawl by capturing full-stack, unsampled, pre-correlated session data. Your coding agent gets better data from a single place.
Catch quality issues you would otherwise miss
Unsampled, pre-correlated session data surfaces issues that tools like Sentry and APM never capture: transient bugs, session-specific failures, edge cases that fall below your error threshold. The 1% of bugs that often get sampled away.
Real-world workflows
Multiplayer connects your coding agent to runtime data, automating workflows that would otherwise cost you hours of manual work.
Resolve bugs before your users (or teammates) notice: Multiplayer monitors production continuously, surfaces new issues the moment a session reveals them, and correlates the failure across your stack before your error rate spikes. You can also trigger issues manually during development before your teammates find "refactoring opportunities."
Vibe coding without surprises: Agent-introduced bugs are not immediately obvious and accumulate silently until your users find them first. Multiplayer catches them early, groups them by issue, scores them for fixability, and sends one focused prompt to your coding agent.
Actual self-healing systems: A coding agent querying your existing observability stack inherits every limitation it was built with: sampled traces, missing correlation, context that stops at system boundaries. Multiplayer adopts a fundamentally different approach to how runtime data is collected, retained, and correlated from the start: unsampled, pre-correlated, scoped to the session that broke. Your coding agent gets exactly what it needs to open a merge-ready PR, automatically.