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VoiceGateway
The open source profiler for voice agents
Add attach(session) to your LiveKit or Pipecat agent. VoiceGateway profiles every STT, LLM, and TTS call from inside: time-to-first-token, p50/p95 latency, exact model, and cost. MIT-licensed. Local SQLite. Your keys, your data.
Voice agents are a black box. You ship one and immediately wonder: which model is actually running, why is the first word slow, and what is this provider bill. I built VoiceGateway to answer those without changing your provider setup.
One call, attach(session), and the profiler wraps your existing STT, LLM, and TTS plugins. It never sits in the audio path. It records latency (TTFT, first audio, p50/p95), the exact model behind each call, and cost per modality. Storage is local SQLite. Your keys, your data.
Latest version v0.21.1 adds three things: per-agent live compute and memory in the dashboard, a cached latency probe (one real measured call, then cached), and a probe on the Overview card that places one real call to an agent so you can verify end to end before a deploy.
Live demo, no login: https://voicegateway.dev/demo
What would you find most useful to see profiled first? Happy to answer anything.
About VoiceGateway on Product Hunt
“The open source profiler for voice agents”
VoiceGateway was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #31 on the daily leaderboard. Add attach(session) to your LiveKit or Pipecat agent. VoiceGateway profiles every STT, LLM, and TTS call from inside: time-to-first-token, p50/p95 latency, exact model, and cost. MIT-licensed. Local SQLite. Your keys, your data.
On the analytics side, VoiceGateway competes within Open Source, Developer Tools, GitHub and Audio — topics that collectively have 629.6k followers on Product Hunt. The dashboard above tracks how VoiceGateway performed against the three products that launched closest to it on the same day.
Who hunted VoiceGateway?
VoiceGateway was hunted by Mahimai Raja J. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of VoiceGateway including community comment highlights and product details, visit the product overview.
Mahimai Raja J