Plivo Voice API
Plivo Voice API lets developers add programmatic calling and interactive voice functions to web and mobile applications.
What Plivo Voice API is
Plivo Voice API lets developers add programmatic calling and interactive voice functions to web and mobile applications. Applications can make and receive calls, play audio, record conversations, and connect across PSTN, SIP, and WebRTC endpoints. Tools include call queues, conferences, text to speech, dual-channel recording, DTMF input, speech recognition, answering machine detection, voicemail transcription, and custom caller ID. The Audio Streams API sends active-call audio over WebSocket for transcription, voice AI, analytics, and custom processing. SDKs are listed for Python, Node.js, Ruby, PHP, Java, .NET, and Go, alongside integrations such as Microsoft Power Automate, Zapier, n8n, Pipedream, Tray, and EngageBay. The Voice API pay-as-you-go plan is listed at $0.01 a month, with other routes and features priced separately. Calls are billed in 60-second increments; a 10-second call is billed as one minute. Pay-as-you-go offers $10 in free credits without a credit card. Plivo lists Android, iOS, API, and web platforms.
Good
- Supports PSTN, SIP, and WebRTC calls.
- Offers recording, conferences, and speech features.
- SDKs cover seven listed languages.
- $10 in free credits without a credit card.
Watch out
- No free plan; pay-as-you-go calls have separate rates.
- Calls use 60-second billing increments.
Who it suits
It suits developers building voice calling into web or mobile apps, particularly those needing programmable call handling or audio streaming. Teams should review separate route rates and call billing increments before estimating usage.
Verdict
Plivo Voice API offers a broad set of call controls and developer tools for applications that need voice functions. Its 60-second billing increments and separately priced routes are important to account for.
Plans and prices
From Plivo Voice API's own pricing page, checked 19 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Pay as you go | Priced on request | $10 in free credits · No credit card required · 2 RPS and 50 call concurrency · Coverage in the United States and India |
| Voice API pay as you go | $0.01 a month | US local outbound $0.0115/min · local inbound $0.0055/min · toll-free outbound $0.0060/min · Browser SDK and SIP $0.0033/min · local numbers $0.50/month · toll-free numbers $1.00/month · Per minute for outbound local calls; other call routes and features are priced separately. |
| Enterprise | $1,000 a month | 190+ country coverage · custom pricing, volume discounts, billing intervals and concurrency · BAA, HIPAA and SSO · Starts at $1,000 per month. |
The facts
Each one read from Plivo Voice API's own pages, with the date it was checked.
What it does
- Audio streaming
- The Audio Streams API sends raw audio from active calls over WebSocket for uses including real-time transcription, voice AI, call analytics, and custom audio processing.checked 30 Sep 2026
- Call capacity
- For US data region accounts created on or after October 1, 2026, the listed US limits range from 1 to 2 outbound calls per second and 2 to 50 concurrent calls depending on plan and lifetime spend.checked 30 Sep 2026
- Call handling
- The Voice API lets applications programmatically make and receive calls, play audio, record conversations, and build interactive voice applications.checked 30 Sep 2026
- Call networks
- Plivo supports calls across PSTN, SIP, and WebRTC endpoints.checked 30 Sep 2026
- Compliance
- Plivo lists SOC 2 certification, HIPAA/HITECH compliance, PCI DSS Level 1 compliance, and GDPR compliance.checked 30 Sep 2026
- Developer SDKs
- The Voice API quickstart lists SDKs for Python, Node.js, Ruby, PHP, Java, .NET, and Go.checked 30 Sep 2026
- Integrations
- Listed integrations include Microsoft Power Automate, Zapier, n8n, Pipedream, Tray, and EngageBay for voice and other Plivo communication workflows.checked 30 Sep 2026
- Intended users
- Plivo describes its APIs as enabling web and mobile apps to integrate messaging and voice functionality and engage customers programmatically.checked 30 Sep 2026
- Security
- Plivo says customer data is logically separated, encrypted in transit with TLS 1.2 or greater, and encrypted at rest with AES-256.checked 30 Sep 2026
- Support
- Plivo says it responds to priority 1 business-critical incidents around the clock, 365 days a year.checked 30 Sep 2026
- Voice features
- Features include call queueing, conferences, text to speech, audio playback, dual-channel recording, DTMF input, speech recognition, answering machine detection, voicemail transcription, and custom caller ID.checked 30 Sep 2026
Money
- Billing increment
- Voice API calls use 60-second billing increments, so a 10-second call is billed as one minute.checked 30 Sep 2026
- Free credits
- The pricing page offers $10 in free credits with no credit card required.checked 30 Sep 2026
The company
- Company
- Plivo says it was founded in 2011 and lists its headquarters in Austin, Texas.checked 30 Sep 2026
- Founded
- 2011checked 28 Sep 2026
- Headquarters
- Austin, Texas, USAchecked 28 Sep 2026
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