VaxVoIP Agent AI SDK Alternatives
SIP-to-OpenAI Realtime gateway SDK for building voice agents on SIP servers and IP-PBX systems
VaxVoIP Agent AI SDK bridges a SIP server or IP-PBX to OpenAI Realtime speech-to-speech models, so developers can build voice agents for live phone calls without handling the SIP media layer themselv.
Explore 10 alternatives to VaxVoIP Agent AI SDK across 2 categories. Updated November 2026.
Top VaxVoIP Agent AI SDK alternatives at a glance
- LiveKit Agents. Open-source framework for building real-time voice and multimodal AI agents over WebRTC
- SLNG. Voice agent infrastructure that routes across STT, TTS and LLM providers with region-pinned execution
- Samtal. Swedish-hosted voice AI API with TTS, ASR, voice cloning, and conversational agents. ElevenLabs-compatible
- LiveKit Agents. Open-source framework for building real-time voice and multimodal AI agents over WebRTC
- SLNG. Voice agent infrastructure that routes across STT, TTS and LLM providers with region-pinned execution
Compare VaxVoIP Agent AI SDK with its alternatives
| Product | Pricing Model | Free Tier | Open Source | Hosting | HQ |
|---|---|---|---|---|---|
| VaxVoIP Agent AI SDK | — | ✓ | — | Self-hosted | — |
| LiveKit Agents | Freemium | ✓ | ✓ | Cloud + Self-hosted | ๐บ๐ธ United States |
| SLNG | Pay-per-use | — | — | Cloud | — |
| Samtal | — | — | — | Cloud | ๐ธ๐ช Sweden |
| Hume AI | Freemium | ✓ | — | Cloud | ๐บ๐ธ United States |
| Respeecher | Freemium | — | — | Cloud | — |
| Cekura | Pay-per-use | ✓ | — | Cloud | ๐บ๐ธ United States |
| Deepgram | Pay-per-use | ✓ | — | Cloud + Self-hosted | ๐บ๐ธ United States |
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