Purpose-built for developers working with coding agents
Many tools claim to give coding agents the runtime visibility they need to ensure that AI-generated code is functionally correct, but only Multiplayer is built from the ground-up to do just that without excessive or missing data.
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.
Multiplayer deduplicates and scores issues locally before anything reaches your coding agent. The same bug appearing across a hundred sessions becomes one issue, assessed for fixability, sent only once. Your coding agent works from a complete, aggregated picture of what went wrong to produce a high-quality, merge-ready PRs.
Key benefits
The result is what developers actually want from AI-assisted development:
Reduce PR review fatigue
Multiplayer deduplicates and scores issues locally before anything reaches your coding agent. The same bug is tracked once, no matter how many times it was reported, and we send only the data needed to generate an accurate fix. Fewer prompts, better PRs, shorter review queues.
Trust your coding agent’s output
Every fix your coding agent writes is grounded in full-stack session data, pre-correlated across your entire system. This limits hallucinations and wasted time verifying and editing AI outputs.
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.
Cut costs and time wasted
PR slop has direct costs: developer review time, rollbacks, incident response on plausible-but-wrong code. Multiplayer cuts all of that, and slashes data storage costs with a session-based, vendor-neutral, open-source approach.
Real-world workflows
Multiplayer connects your coding agent to production runtime data, automating workflows that would otherwise cost you hours of manual work.
The same bug, reported a hundred times, fixed once: A single bug may surface across hundreds of user sessions. Without Multiplayer, each error event is a separate signal: your coding agent gets prompted repeatedly, opens near-identical PRs, burns through tokens, and your review queue fills up with variations of the same broken fix. With Multiplayer, the issue is deduplicated locally on the first session. One prompt, one PR, one review. Done.
Resolve bugs before they become a PR backlog: Multiplayer monitors production continuously, surfaces new issues the moment a session reveals them, and deduplicates them locally before anything reaches your coding agent. You can also trigger issues manually while developing to iteratively improve your code and keep the PR queue in check.
Vibe coding without surprises: Agent-introduced bugs are not immediately obvious and can accumulate silently until someone (your users or malicious agents) notices them. Multiplayer catches these bugs early, groups them by issue, scores them for fixability, and sends one prompt to your coding agent.
Self-healing systems with high-quality PRs: 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. The PRs it produces reflect those gaps: plausible-looking fixes that fail in production and get reverted. Multiplayer collects runtime data differently from the start: unsampled, pre-correlated, scoped to the session that broke. Your coding agent gets exactly what it needs to open a PR worth merging, automatically.