Top 10 Voice Call API for Your Voice App

Are you looking to add voice functionality to your app? Voice calling APIs can provide a seamless experience for your users, from voice calls to chatbots. This article will explore the top 10 voice APIs that can take your voice app to the next level. If you’re building a voice-calling platform, these voice-call APIs will help you create a high-quality user experience.

10 Best Voice APIs for Your Business

ZEGOCLOUD Voice API

ZEGOCLOUD Voice API offers advanced, real-time voice communication integration for applications. It is ideal for everything from social media to business tools and ensures high-quality, clear audio. Key features include ultra-low latency for smooth, uninterrupted conversations, essential in online gaming and customer support. Additionally, advanced noise reduction technology filters background noise, enhancing clarity and professionalism in any environment.

Designed for scalability, ZEGOCLOUD Voice API supports many applications, from small projects to large enterprise solutions. Its robust architecture efficiently handles high-volume voice calls, ensuring quality and performance. This makes it a preferred choice for developers seeking to embed reliable voice communication features into their apps.

Twilio Voice API

Twilio is a popular cloud communication platform that offers voice call and messaging APIs. Their Voice API allows developers to build voice-enabled applications with text-to-speech, call recording, and call routing features.

One of the significant advantages of Twilio is its scalability. Twilio can handle high volumes of voice traffic, making it an excellent option for businesses of all sizes. Additionally, Twilio offers a range of pricing plans, including pay-as-you-go and monthly plans, making it easy to find a plan that fits your budget.

Another advantage of Twilio is its extensive documentation and community support. Twilio provides detailed documentation, code samples, and tutorials, making it easy for developers to get started with their Voice API. The Twilio community is active and supportive, with developers sharing their experiences and best practices.

Plivo Voice API

Plivo is another cloud communication platform that offers a robust set of APIs, including its Voice API. With Plivo, developers can create voice applications with call forwarding, conferencing, and IVR features.

Plivo’s Voice API is easy to use and integrates with other Plivo APIs, such as their messaging API. Plivo also offers a range of pricing plans, including pay-as-you-go and monthly plans, making it easy to find a plan that fits your budget.

One of the significant advantages of Plivo is its global reach. Plivo supports over 190 countries, making it an excellent option for businesses with international users. Additionally, Plivo provides detailed documentation, code samples, and tutorials, making it easy for developers to get started with their Voice API.

Amazon Polly

Amazon Polly is a text-to-speech service that allows developers to add realistic voice output to their applications. Polly offers over 60 voices in 29 languages, making it an excellent option for international apps.

Amazon Polly is easy to use and integrates with other Amazon Web Services (AWS) products, such as Amazon S3 and Amazon Lambda. Additionally, Amazon Polly provides detailed documentation and code samples, making it easy for developers to start.

Amazon Polly can handle high volumes of speech requests, making it an excellent option for businesses of all sizes. Additionally, Amazon Polly is cost-effective, with pay-as-you-go pricing and no upfront costs.

Google Cloud Text-to-Speech

Google Cloud Text-to-Speech is another text-to-speech service that offers high-quality voices in over 30 languages. It also provides features such as audio profiles and speech synthesis markup language (SSML).

Google Cloud Text-to-Speech integrates with other Google Cloud products, such as Google Cloud Storage and Google Cloud Functions. Additionally, Google Cloud Text-to-Speech provides detailed documentation and code samples, making it easy for developers to start.

Google’s speech recognition technology is known for its high accuracy, making it an excellent option for businesses that require precise speech recognition.

Nexmo Voice API

Nexmo is a cloud communication platform that offers voice and messaging APIs. Their Voice API allows developers to build voice-enabled applications with call recording, text-to-speech, and transcription features.

One of the significant advantages of Nexmo is its ease of use. Nexmo provides detailed documentation and code samples, making it easy for developers to get started with their Voice API. Additionally, Nexmo offers a range of pricing plans, including pay-as-you-go and monthly plans, making it easy to find a plan that fits your budget.

Nexmo supports over 200 countries, making it an excellent option for businesses with international users. Additionally, Nexmo offers 24/7 support, ensuring developers can get help when needed.

Voximplant Voice API

Voximplant is a cloud communication platform offering various APIs, including its Voice API. With Voximplant, developers can build voice-enabled applications with call recording, call routing, and text-to-speech features.

One of the significant advantages of Voximplant is its ease of use. Voximplant provides detailed documentation and code samples, making it easy for developers to get started with their Voice API. Additionally, Voximplant offers a range of pricing plans, including pay-as-you-go and monthly plans, making it easy to find a plan that fits your budget.

Voximplant can also be used to build applications for various use cases, including call centres, virtual assistants, and voice-enabled IoT devices.

IBM Watson Text-to-Speech

IBM Watson Text-to-Speech is a text-to-speech service that offers high-quality voices in multiple languages. It also provides features such as SSML and customizable voice styles.

IBM Watson Text-to-Speech integrates with other IBM Watson services, such as IBM Watson Assistant and IBM Watson Speech-to-Text. Additionally, IBM Watson Text-to-Speech provides

Developers can create custom voice styles that match their brand’s tone and personality, making their applications more engaging and personalized.

Azure Speech Services

Azure Speech Services is a suite of speech recognition and synthesis APIs that allows developers to add voice capabilities to their applications. It offers features such as speech-to-text, text-to-speech, and speaker recognition.

Azure Speech Services integrates with other Microsoft Azure services, such as Azure Cognitive Services and Azure Functions. Additionally, Azure Speech Services provides detailed documentation and code samples, making it easy for developers to get started.

Microsoft’s speech recognition technology is known for its high accuracy, making it an excellent option for businesses that require precise speech recognition.

Sinch Voice API

Sinch is a cloud communication platform that offers voice and messaging APIs. Their Voice API allows developers to build voice-enabled applications with call recording, text-to-speech, and transcription features.

One of Sinch’s significant advantages is its global reach. Sinch supports over 190 countries, making it an excellent option for businesses with international users. Additionally, Sinch provides detailed documentation and code samples, making it easy for developers to get started with their Voice API.

Sinch’s platform is designed to ensure high-quality voice calls, with features such as call quality monitoring and network redundancy.