What is the best alternative to Deepgram Voice Agent API?

It depends on whether you'd rather self-host or buy a managed product. CyberVerse is the most widely-adopted open-source alternative (1.6k GitHub stars); Bland AI is one of the commercial options. Compare the full list above on adoption, license, and pricing.

Is there a free or open-source alternative to Deepgram Voice Agent API?

Yes. CyberVerse, echokit_server, and Pipecat are open-source voice agents you can self-host for free — you still pay for the infrastructure you run them on and any model or API usage. See the ranked open-source list above.

How are these Deepgram Voice Agent API alternatives ranked?

Every product in the voice agents category is a candidate. Open-source alternatives are ranked by maintained adoption — GitHub stars plus recent commit activity — so you see what's genuinely used, not abandoned. Commercial products are listed separately and alphabetically, because stars don't measure commercial adoption. Sponsored placement is always labeled and never affects the ranking.

Alternatives · Voice Agents

Deepgram Voice Agent API alternatives

Looking for an alternative to Deepgram Voice Agent API? Below are the voice agents in our index that do a similar job — open-source options are ranked by real maintained adoption (GitHub stars and recent commit activity), never by sponsorship. Deepgram Voice Agent API is a commercial product, so the list below includes both other commercial options and open-source projects you can self-host.

the 10 closest of 32 · all voice agents · how we rank

The product you're replacing

Deepgram Voice Agent APIPlatformVoice Agents

A unified API for speech recognition, model orchestration and speech synthesis.

Paid product

Visit Deepgram Voice Agent API →Full Deepgram Voice Agent API record

Deepgram Voice Agent API's own profile notes it may not be the right fit if you need a ready-made phone-support application without implementing and testing conversation logic. If that's you, the options below are worth comparing.

Building one yourself? Choose and evaluate a voice agent stack →

Commercial alternatives to Deepgram Voice Agent API

Listed alphabetically — GitHub stars don't measure commercial adoption.

Bland AIPlatformEnterprise platform for AI phone calls that sound human.Paid productVerified

vs Deepgram Voice Agent API — Best for enterprises running high-volume outbound and inbound AI phone calls.

ElevenLabs AgentsPlatformConversational voice agents powered by ElevenLabs' leading speech models.FreemiumVerified

vs Deepgram Voice Agent API — Pricing model differs — Deepgram Voice Agent API is a paid product, ElevenLabs Agents is freemium.

Retell AIPlatformBuild AI phone agents with configurable conversation flows and call transfers.Paid productVerified

vs Deepgram Voice Agent API — Best for teams configuring AI phone conversations and transfer behavior through a managed platform.

SynthflowPlatformNo-code AI voice agents for inbound and outbound calls.Paid productVerified

vs Deepgram Voice Agent API — Best for no-code teams launching AI phone agents quickly.

Open-source alternatives to Deepgram Voice Agent API

Ranked by maintained adoption — self-hostable and free to run.

CyberVersePlatformSelf hosted, real-time digital human agent platform. Build voice-first AI agents with WebRTC, persona memory, tools, RAG, and optional digital-human video.Open sourcePython · GPL-3.0Verified · Active 1.6kGitHub stars

vs Deepgram Voice Agent API — Deepgram Voice Agent API is a commercial product; CyberVerse is open-source and self-hostable.

echokit_serverPlatformOpen Source Voice Agent PlatformOpen sourceRust · GPL-3.0Verified 593GitHub stars

vs Deepgram Voice Agent API — Deepgram Voice Agent API is a commercial product; echokit_server is open-source and self-hostable.

PipecatFrameworkCompose voice and multimodal agents with Python processing pipelines.Open sourcePython · BSD-2-ClauseVerified · Active 16kGitHub stars

vs Deepgram Voice Agent API — Deepgram Voice Agent API is a commercial product; Pipecat is open-source and self-hostable.

LiveKit AgentsFrameworkBuild voice and multimodal agents that participate in LiveKit rooms.Open sourcePython · Apache-2.0Verified · Active 14kGitHub stars

vs Deepgram Voice Agent API — Deepgram Voice Agent API is a commercial product; LiveKit Agents is open-source and self-hostable.

xiaozhi-esp32-serverInfrastructureBackend service for xiaozhi-esp32 -- helps you quickly build an ESP32 device control server.Open sourceJavaScript · MITVerified · Active 11kGitHub stars

vs Deepgram Voice Agent API — Deepgram Voice Agent API is a commercial product; xiaozhi-esp32-server is open-source and self-hostable.

ten-vadSDK / libraryVoice Activity Detector (VAD): low-latency, high-performance and lightweightOpen sourceCVerified 2.3kGitHub stars

vs Deepgram Voice Agent API — Deepgram Voice Agent API is a commercial product; ten-vad is open-source and self-hostable.

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Showing the 10 closest. See all 32 voice agents →

Compare Deepgram Voice Agent API head-to-head

Frequently asked

What is the best alternative to Deepgram Voice Agent API?: It depends on whether you'd rather self-host or buy a managed product. CyberVerse is the most widely-adopted open-source alternative (1.6k GitHub stars); Bland AI is one of the commercial options. Compare the full list above on adoption, license, and pricing.
Is there a free or open-source alternative to Deepgram Voice Agent API?: Yes. CyberVerse, echokit_server, and Pipecat are open-source voice agents you can self-host for free — you still pay for the infrastructure you run them on and any model or API usage. See the ranked open-source list above.
How are these Deepgram Voice Agent API alternatives ranked?: Every product in the voice agents category is a candidate. Open-source alternatives are ranked by maintained adoption — GitHub stars plus recent commit activity — so you see what's genuinely used, not abandoned. Commercial products are listed separately and alphabetically, because stars don't measure commercial adoption. Sponsored placement is always labeled and never affects the ranking.