8x8 Communications APIs vs Plivo Voice API

8x8 Communications APIs provide programmable messaging, voice and video for applications. Listed messaging channels include SMS, WhatsApp, RCS, Viber, LINE and Zalo, alongside voice and video. The APIs support phone numbers, and SDK platforms include iOS and Android; the service is listed for Android, iOS and web. The free Developer plan costs nothing and covers 25 users. Monthly plans include Basic at $99 a month for 300 users, Standard at $499 a month for 1.5K users and Business at $999 a month for 3K users. Video Interaction plans are seat-based: Basic costs $99 a month, Pro costs $109 a month and Enterprise costs $119 a month, each for 100 to 249 users. Other listed options are pay-as-you-go, customized subscription pricing and tailored enterprise pricing; no prices are stated for these options. The pricing note lists paid plans from $99/mo.

Plivo Voice API lets web and mobile applications make and receive calls programmatically, play audio, record conversations, and build interactive voice applications. It connects calls across PSTN, SIP, and WebRTC endpoints. Features include queues, conferences, text to speech, dual-channel recording, DTMF input, speech recognition, answering machine detection, voicemail transcription, and custom caller ID. Its Audio Streams API sends raw audio from active calls over WebSocket for transcription, voice AI, analytics, or custom processing. Plivo lists SDKs for Python, Node.js, Ruby, PHP, Java,.NET, and Go, along with integrations including Zapier, n8n, Pipedream, Tray, EngageBay, and Microsoft Power Automate. The service is listed for Android, iOS, web, and API. The Voice API pay-as-you-go plan is listed at $0.01 a month; call routes and features have separate rates. Calls are billed in 60-second increments. Pay-as-you-go accounts receive $10 in free credits without a credit card. Plivo was founded in 2011 and is headquartered in Austin, Texas.