Bandwidth Voice API vs Plivo Voice API

Bandwidth Voice API9.1Visit Plivo Voice API7.1Visit

Higher score Bandwidth Voice API #3 in Voice APIs 9.1/10 Pricing on request ✓ 5 of 5 features Visit Bandwidth

vs

Plivo Voice API #25 in Voice APIs 7.1/10 Paid ✓ 5 of 5 features Visit Plivo

• Bandwidth Voice API fits best

  Mature PSTN voice and media streaming projects

• Plivo Voice API fits best

  Developers needing SIP and streaming voice

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Side by side

Feature	Bandwidth Voice API 9.1/10 Visit ↗	Plivo Voice API 7.1/10 Visit ↗
At a glance
Editor score	9.1	7.1
Ranking	#3 in Voice APIs	#25 in Voice APIs
Best for	Mature PSTN voice and media streaming projects	Developers needing SIP and streaming voice
Pricing model	Paid	Paid
Starting price	Pricing on request	$1,000/mo
Free plan	—	—
Free trial	—	—
Deployment	Cloud	Cloud
Features Bandwidth Voice API 5/5 · Plivo Voice API 5/5
Inbound calling	✓	✓
Outbound calling	✓	✓
Phone number support	✓	✓
SIP support	✓	✓
Call recording	✓	✓
Specs
Concurrent call limit	Not checked yet	50 calls
SDK languages	C#, Java, Node.js, PHP, Python, Ruby	Python, Node.js, Ruby, PHP, Java, .NET, Go
Our review
Pros	Inbound and outbound PSTN calling with REST APIs, webhooks, and BXML Voice, transcription, recording, conferencing, and answering-machine detection WebSocket media streaming with OpenAI Realtime API integration	Supports inbound, outbound, PSTN and SIP calling Adds recording, conferences, webhooks and WebSocket streaming Offers SDK examples for Python, Node.js, Ruby, PHP, Java, .NET and Go
Cons	Paid service with usage-based rates rather than a conventional monthly plan No permanent $0 Voice API plan API-only access requires development work to build user-facing workflows	Pay-as-you-go includes 2 RPS and 50-call concurrency Enterprise starts at $1,000 per month Coverage differs between Pay as you go and Enterprise
Our verdict	Bandwidth Voice API gives developers programmable inbound and outbound telephone calling through HTTPS requests, webhooks, REST APIs, and Bandwidth XML (BXML). It is aimed at businesses and software teams building IVR systems,… Read the review →	Plivo Voice API lets developers programmatically make and receive telephone calls through HTTP APIs and Plivo XML. It is designed for businesses adding communications features to web and mobile applications, with inbound calling on Plivo… Read the review →

Strengths and trade-offs

• Bandwidth Voice API — where it wins

  • Inbound and outbound PSTN calling with REST APIs, webhooks, and BXML
  • Voice, transcription, recording, conferencing, and answering-machine detection
  • WebSocket media streaming with OpenAI Realtime API integration

  Where it doesn't

  • Paid service with usage-based rates rather than a conventional monthly plan
  • No permanent $0 Voice API plan
  • API-only access requires development work to build user-facing workflows

• Plivo Voice API — where it wins

  • Supports inbound, outbound, PSTN and SIP calling
  • Adds recording, conferences, webhooks and WebSocket streaming
  • Offers SDK examples for Python, Node.js, Ruby, PHP, Java, .NET and Go

  Where it doesn't

  • Pay-as-you-go includes 2 RPS and 50-call concurrency
  • Enterprise starts at $1,000 per month
  • Coverage differs between Pay as you go and Enterprise

• Bandwidth Voice API9.1/10 · Pricing on request

  A broad PSTN voice API for calling, media control, transcription, and AI streaming.

  Visit BandwidthFull verdict →
• Plivo Voice API7.1/10 · Paid

  A developer-focused Voice API for inbound, outbound, SIP and streaming calls.

  Visit PlivoFull verdict →