Deepgram Voice Agent API
What Deepgram Voice Agent API is
Deepgram Voice Agent API is a web-based API for building voice-agent services. It lists inbound and outbound calls, human handoff, custom phone numbers, and capacity for 45.0 concurrent calls. Pricing is pay-as-you-go, with options for the full API stack or for bringing your own text-to-speech provider, language model, or both. Standard costs $0.08 a month and includes the full Voice Agent API stack. Standard - BYO TTS costs $0.07 a month; Custom - BYO LLM costs $0.06 a month. Custom - BYO LLM + TTS lets customers bring both providers, but no price is listed. Advanced costs $0.16 a month, and Advanced - BYO TTS costs $0.12 a month. There is no free plan. Deepgram was founded in 2015 and is headquartered in San Francisco, California, United States.
Who it suits
The API suits teams building voice-agent services that need inbound or outbound calls and human handoff. Its listed plans provide options for using the full stack or bringing a text-to-speech provider or language model.
What it does well
- Supports inbound and outbound calls
- Human handoff and custom phone numbers
- Lists capacity for 45.0 concurrent calls
- Pay-as-you-go plan options
What to know first
- No free plan
- No price listed for Custom - BYO LLM + TTS
Limits
There is no free plan.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Standard | Pay-as-you-go · Full Voice Agent API stack | $0.08 a month |
| Standard - BYO TTS | Pay-as-you-go · Bring your own text-to-speech provider | $0.07 a month |
| Custom - BYO LLM | Pay-as-you-go · Bring your own LLM | $0.06 a month |
| Custom - BYO LLM + TTS | Pay-as-you-go · Bring your own LLM and text-to-speech providers | On request |
| Advanced | Pay-as-you-go · Advanced pricing tier | $0.16 a month |
| Advanced - BYO TTS | Pay-as-you-go · Advanced tier with bring-your-own TTS | $0.12 a month |
As deepgram.com lists them, read 19 Sept 2026. The maker's own page has the final word.
Getting started
- Open the Deepgram Voice Agent API website
- Choose a pay-as-you-go plan
- Select whether to use Deepgram components or bring your own LLM or TTS
- Configure inbound or outbound calling and phone-number options
Verdict
Deepgram Voice Agent API lists call handling and several pay-as-you-go configurations. Compare the provider options and stated prices before selecting a plan.
Questions
Does it have a free plan?
No. Deepgram Voice Agent API is listed as paid with no free plan.
What does Standard cost?
Standard costs $0.08 a month on a pay-as-you-go basis and includes the full Voice Agent API stack.
Can I bring my own providers?
Yes. Plans allow you to bring your own text-to-speech provider, language model, or both.
Does it support phone calls?
Yes. It supports inbound calls, outbound calls, human handoff, and custom phone numbers.
What platform is listed?
The listed platform is web.
Facts from Deepgram Voice Agent API's own pages
- Founded
- 2015 · deepgram.com, 23 Sept 2026
- Headquarters
- San Francisco, California, United States · deepgram.com, 23 Sept 2026
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