Vonage Voice API (ASR Connector)
Vonage's CPaaS speech-to-text via the ASR connector (typically Deepgram-powered).
Vonage's CPaaS speech-to-text via the ASR connector (typically Deepgram-powered).
Best for cPaaS / IVR builders on Vonage Voice who need transcripts in their call flow. Pricing: Vonage Voice price + ASR per-minute.
What it is
Vonage's Voice API supports inline speech recognition via its NCCO ASR action and call-recording transcription. ASR is delivered via partnerships (historically Deepgram). Best suited for IVR, voice-bot and call-routing flows where you already use Vonage for telephony. Pricing combines Voice minute charges with per-minute ASR. Best fit: cpaas / ivr builders on vonage voice who need transcripts in their call flow. Caveats: asr pricing is on top of voice minute charges; vendor under the hood may change. Pricing as listed: Vonage Voice price + ASR per-minute. Feature flags from vendor docs: word-level timestamps, streaming. Directory tags: commercial-api, telephony. Last vendor-page check: 2026-05-12.
Watch out for: ASR pricing is on top of Voice minute charges; vendor under the hood may change.
Install / use
Vonage Voice API: NCCO ASR actionFeatures
| Speaker diarization | No |
| Word-level timestamps | Yes |
| Streaming / real-time | Yes |
| Languages supported | None |
| HIPAA eligible | No |
Vonage Voice API (ASR Connector) vs Whipscribe
| Feature | Vonage Voice API (ASR Connector) | Whipscribe |
|---|---|---|
| Category | Transcription APIs | Transcription APIs |
| Pricing | Vonage Voice price + ASR per-minute | free beta |
| Speaker diarization | — | Yes |
| Word timestamps | Yes | Yes |
| Streaming | Yes | No |
| Languages | — | 99 |
| Platforms | API | Web, API, MCP |
Alternatives to Vonage Voice API (ASR Connector)
Whipscribe is a managed faster-whisper + whisperX service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.