Last updated: 2026-08-27
Plivo is a cloud communications platform founded in 2011 that has carried billions of calls for Uber, Meta, and GoDaddy across 150+ countries at 99.99% uptime. It layers AI voice agents on that carrier-grade telephony, built through a no-code studio or LiveKit and Pipecat integrations, with sub-500 millisecond response latency in 50+ languages.
About Plivo
Plivo is a cloud communications platform that lets businesses build and deploy AI voice agents across voice, SMS, WhatsApp, and chat, built on carrier-grade telephony reaching 150+ countries. Founded in 2011 in Austin by Venky Balasubramanian and Michael Ricordeau, the company bootstrapped past a $2 million seed round from Andreessen Horowitz, Battery Ventures, Qualcomm Ventures, and SV Angel, and grew to an estimated $86.6 million in 2024 revenue while staying profitable since roughly 2015. The platform ships two build paths. A No-Code Studio lets a business user describe an agent in plain English, for example "outbound agent for collecting post-delivery feedback," and get a working flow without writing code. A Programmable Agents path lets developers wire the LiveKit or Pipecat open-source voice frameworks directly into Plivo's own SIP trunking and audio streaming infrastructure for full control. Both paths share interruption detection and barge-in handling, and conversation state persists as a caller moves between channels rather than resetting at each touchpoint. Plivo's underlying telephony has carried traffic for Uber, Meta, Adobe, GoDaddy, Atlassian, Discord, Razorpay, and Zomato, and the AI agent layer targets similar volume: outbound sales and lead qualification, order tracking, payment collection follow-up, and post-purchase feedback surveys, plus inbound support and IVR replacement. It fits engineering teams that already run telephony infrastructure and want to add a voice AI layer without switching vendors, and it fits ops or support leaders who want a single agent live without a developer sprint. Pricing follows a metered model: a free-to-start tier for testing telephony and AI agents together, then usage-based per-minute billing, stepping up to a higher-priced Enterprise tier that unlocks broader country coverage and additional channels like SMS and WhatsApp. Exact rates for every tier are in the pricing FAQ below. The product runs as a web console and REST APIs, with browser, iOS, and Android SDKs for embedding calls into other apps; there is no standalone Plivo desktop or mobile application. Plivo holds SOC 2, PCI DSS Level 1, and GDPR attestations and will sign a HIPAA Business Associate Agreement for regulated deployments, though it does not publish an EU AI Act statement. Developers can also trigger calls and messages from an AI coding assistant through an official Model Context Protocol integration Plivo maintains on GitHub.
Pricing
Pay as You Go: $10 in free credits, no card required, covering SIP trunking, audio streaming, AI agents and phone numbers for US and India numbers up to $2,500/month usage. Outbound calls $0.0010/min, inbound $0.0028/min. AI Voice Agents bill separately at $0.03/min on top of telephony, covering voice models, transcription, and orchestration. Enterprise plan starts at $1,000/month for 190+ country coverage plus SMS ($0.0077/message), WhatsApp ($0.0037/message, $0.0040/min for calls), Verify API, and compliance add-ons like a signed BAA and SSO.
Key Features
- No-Code Agent Studio: Business users describe an agent in plain English and get a working voice flow without code, instead of assembling a custom LiveKit or Pipecat pipeline by hand.
- Sub-500ms Response Latency: Plivo cites under-500ms latency on optimal network paths and 700-900ms in typical deployments, avoiding the dead air that signals a bot to a caller.
- 150+ Country Carrier-Grade Telephony: SIP trunking and audio streaming route through Plivo's own carrier network across more than 150 countries at a stated 99.99% platform uptime.
- Cross-Channel Shared Memory: Agents carry conversation history across voice, SMS, WhatsApp, and chat, so a customer who starts on a call and follows up by text is not asked to repeat context.
- 50+ Language, 30+ Accent Coverage: Voice agents handle over 50 languages and 30-plus regional accents, with interruption detection and barge-in handling for natural turn-taking.
- Official MCP Server: A FastMCP-based server at github.com/plivo/mcp exposes sending SMS, placing calls, and pulling call and message detail records as tools inside Claude Desktop and other MCP clients.
Pros
- G2 rates Plivo 4.5 out of 5 across 747 reviews and Capterra rates it 4.3 out of 5 across 84 reviews, with reviewers most often citing documentation quality and pricing transparency.
- The pay-as-you-go tier starts with $10 in free credits and no credit card, letting a team test AI voice agents and telephony together before any billing conversation.
- Bootstrapped and profitable since roughly 2015 on an estimated $86.6M in 2024 revenue, a financial track record most venture-backed voice AI rivals founded in 2023 or later cannot show.
- SOC 2, PCI DSS Level 1, and a signed HIPAA BAA are available today rather than on a roadmap, letting healthcare and payments teams deploy without extra compliance infrastructure.
Cons
- Trustpilot rates Plivo 1.2 out of 5 across 87 reviews, 60% of them one star, citing billing disputes and account suspensions; that sits sharply at odds with the G2 and Capterra scores above and is worth reading before committing production volume.
- AI agent minutes are billed separately from telephony, so the effective per-minute cost for a handled call runs higher than the advertised rate once SIP and audio streaming fees stack on top, and the pricing page does not surface that combined figure.
- SMS, WhatsApp, and the Verify API sit behind the Enterprise plan, so a pay-as-you-go account cannot add text-based channels without upgrading first.
- Support is ticket-only, and reviewers who needed a fast response on a live production incident describe delays, a recurring complaint pattern for usage-based telephony vendors at Plivo's account volume.
Frequently Asked Questions
What are Plivo's pricing plans in 2026?
Plivo runs pay-as-you-go by default: $10 in free credits with no card required, covering SIP trunking, audio streaming, AI agents, and phone numbers in the US and India up to $2,500 in monthly usage. Outbound calls cost $0.0010/minute and inbound $0.0028/minute, with AI voice agent minutes billed separately at $0.03/minute on top. An Enterprise plan starts at $1,000/month and adds 190+ country coverage plus SMS and WhatsApp, which pay-as-you-go accounts cannot access.
What do you get on Plivo's free tier?
New accounts receive $10 in free credits with no credit card required, enough to test SIP trunking, audio streaming, and AI voice agents on the pay-as-you-go tier. That tier caps usage at $2,500/month and only issues US and India numbers, and it excludes SMS, WhatsApp, and the Verify API, all of which require the Enterprise plan.
What are the best alternatives to Plivo?
Retell AI is the closer voice-AI comparison if you want to pick your own LLM and voice engine independently rather than use a single built-in stack. echowin fits a small business that wants a phone receptionist working with no telephony setup at all. Twilio remains the largest CPaaS alternative, with a bigger integration ecosystem at a published premium over Plivo's rates.
Plivo or Twilio: which should you pick?
Twilio is the larger, more established CPaaS with broader documentation and integrations, but it typically runs 40 to 60 percent more expensive than Plivo for comparable SMS and voice volume. Plivo counters with its own AI voice agent layer built directly on that telephony, so a team does not bolt a separate voice AI vendor onto Twilio's infrastructure. Cost-sensitive teams building AI voice agents from scratch generally do better starting on Plivo; teams with deep existing Twilio integrations may find switching costs outweigh the savings.
What does it take to start using Plivo?
Sign up for the free starting credits with no card required, then either describe an agent in plain English through the No-Code Studio or wire LiveKit or Pipecat into Plivo's SIP trunking through the Programmable Agents path for full developer control. A basic no-code agent can go live the same day; a custom developer integration takes longer depending on how much of the call flow is built from scratch.
Top Alternatives
- Retell AI: Pick Retell AI if you want a voice-AI-only platform with independent LLM and TTS provider choice. Pick Plivo if you want the underlying telephony, numbers, and SMS built into the same account.
- echowin: Pick echowin for a small business that wants a phone receptionist live in minutes. Pick Plivo for programmable agents built on carrier-grade infrastructure that also runs SMS and WhatsApp.
- Sierra: Pick Sierra for a fully managed enterprise CX build on custom six-figure pricing. Pick Plivo if your team wants to build and own the agent logic on pay-as-you-go pricing instead.
- Decagon: Pick Decagon for a white-glove enterprise deployment across chat, voice, and CRM write access. Pick Plivo if you want self-serve pricing starting from free credits instead of a sales-led contract.