Plivo Voice API
What Plivo Voice API is
Plivo Voice API lets web and mobile applications place and receive calls, play audio, record conversations, and create interactive voice experiences. It supports PSTN, SIP, and WebRTC endpoints, with tools such as call queues, conferences, text to speech, dual-channel recording, speech recognition, voicemail transcription, and custom caller ID. Its Audio Streams API sends raw audio from active calls over WebSocket for transcription, voice AI, analytics, or other audio processing. Developer SDKs are listed for Python, Node.js, Ruby, PHP, Java, .NET, and Go, alongside integrations including Zapier, Microsoft Power Automate, n8n, Pipedream, Tray, and EngageBay. Android, iOS, web, and API are listed platforms. Plivo offers $10 in free credits without requiring a credit card, although there is no free plan. The Voice API pay-as-you-go plan is listed at $0.01 a month, with routes and features priced separately; calls are billed in 60-second increments. The Enterprise plan starts at $1,000 a month. Plivo was founded in 2011 and is headquartered in Austin, Texas.
Who it suits
It suits developers building voice calling or interactive voice features into web and mobile applications. Teams needing call recording, streaming audio, or integrations with listed workflow tools may also find its capabilities relevant.
What it does well
- Supports PSTN, SIP, and WebRTC calls.
- Offers SDKs in seven listed languages.
- Audio streams are available over WebSocket.
- $10 in credits requires no credit card.
- Lists SOC 2, HIPAA/HITECH, PCI DSS, and GDPR compliance.
What to know first
- No free plan is listed.
- Calls use 60-second billing increments.
- Call routes and features have separate rates.
- Listed concurrency limit is 50 calls.
Limits
Pay-as-you-go calls use 60-second billing increments, so a 10-second call is billed as one minute. The listed pay-as-you-go limits include 2 requests per second and 50 concurrent calls; US limits vary by plan and lifetime spend for applicable accounts.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Pay as you go | $10 in free credits · No credit card required · 2 RPS and 50 call concurrency · Coverage in the United States and India | On request |
| Voice API pay as you go | Per minute for outbound local calls; other call routes and features are priced separately. · 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 | $0.01 a month |
| Enterprise | Starts at $1,000 per month. · 190+ country coverage · custom pricing, volume discounts, billing intervals and concurrency · BAA, HIPAA and SSO | $1,000 a month |
As plivo.com lists them, read 19 Sept 2026. The maker's own page has the final word.
Getting started
- Open https://www.plivo.com/
- Choose the pay-as-you-go or Enterprise plan
- Use the $10 credits offer without a credit card
- Select an SDK such as Python, Node.js, Ruby, PHP, Java, .NET or Go
- Connect your application through the Voice API
- Add integrations such as Zapier or Microsoft Power Automate if needed
Verdict
Plivo Voice API combines call handling, recording, and streaming audio with developer SDKs and integrations. Check route-specific rates and billing increments against expected call patterns before choosing a plan.
Questions
Is there a free plan?
No. Plivo offers $10 in free credits without requiring a credit card.
What does the Voice API cost?
The listed Voice API pay-as-you-go plan is $0.01 a month, with call routes and features priced separately. US local outbound is $0.0115 per minute and local inbound is $0.0055 per minute.
Which SDK languages are available?
SDKs are listed for Python, Node.js, Ruby, PHP, Java, .NET and Go.
Can Plivo handle SIP and WebRTC calls?
Yes. Plivo supports PSTN, SIP and WebRTC endpoints, along with inbound and outbound calling.
Does Plivo offer call recording and streaming?
Yes. Voice features include dual-channel recording, and Audio Streams sends raw active-call audio over WebSocket.
What is the Enterprise plan?
Enterprise starts at $1,000 a month and lists 190+ country coverage, custom pricing, volume discounts, billing intervals, concurrency, BAA, HIPAA and SSO.
Facts from Plivo Voice API's own pages
- 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. · plivo.com, 30 Sept 2026
- Billing increment
- Voice API calls use 60-second billing increments, so a 10-second call is billed as one minute. · plivo.com, 30 Sept 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. · plivo.com, 30 Sept 2026
- Call handling
- The Voice API lets applications programmatically make and receive calls, play audio, record conversations, and build interactive voice applications. · plivo.com, 30 Sept 2026
- Call networks
- Plivo supports calls across PSTN, SIP, and WebRTC endpoints. · plivo.com, 30 Sept 2026
- Company
- Plivo says it was founded in 2011 and lists its headquarters in Austin, Texas. · plivo.com, 30 Sept 2026
- Compliance
- Plivo lists SOC 2 certification, HIPAA/HITECH compliance, PCI DSS Level 1 compliance, and GDPR compliance. · plivo.com, 30 Sept 2026
- Developer SDKs
- The Voice API quickstart lists SDKs for Python, Node.js, Ruby, PHP, Java, .NET, and Go. · plivo.com, 30 Sept 2026
- Founded
- 2011 · plivo.com, 28 Sept 2026
- Free credits
- The pricing page offers $10 in free credits with no credit card required. · plivo.com, 30 Sept 2026
- Headquarters
- Austin, Texas, USA · plivo.com, 28 Sept 2026
- Integrations
- Listed integrations include Microsoft Power Automate, Zapier, n8n, Pipedream, Tray, and EngageBay for voice and other Plivo communication workflows. · plivo.com, 30 Sept 2026
- Intended users
- Plivo describes its APIs as enabling web and mobile apps to integrate messaging and voice functionality and engage customers programmatically. · plivo.com, 30 Sept 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. · plivo.com, 30 Sept 2026
- Support
- Plivo says it responds to priority 1 business-critical incidents around the clock, 365 days a year. · plivo.com, 30 Sept 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. · plivo.com, 30 Sept 2026
Where Plivo Voice API stands on Freedom251
- Voice APIs#10 of 52
- Communications Platforms as a Service#11 of 24