Chatbots, short for chat robots, are tools that are designed to conduct interactive human conversations automatically. They are normally embedded on various platforms, such as messaging applications, websites, or mobile applications, and used for simulating conversations with human users and solving various tasks.
With the current advancements in technology, especially the artificial intelligence (AI), technology, chatbots are increasingly being created to enable highly conversational and engaging experiences.
What’s more, some of the chatbots have exposed their Application Programming Interfaces (APIs) to enable developers to fetch their features and integrate them into applications without the need of starting from scratch.
Therefore, to assist you in finding the best API for your use case, we reviewed several chatbot APIs based on the following three main criteria:
- API features: We assessed the outstanding features of each of the APIs.
- Price: We looked at the cost of using each of the APIs.
- Ease of use: We examined the ease of using each of the APIs in creating chatbots.
Eventually, we came up with the following list of the top 10 best chatbot APIs:
- Facebook Messenger API
- Slack API
- Telegram API
- ApiAI API
- ChatBot API
- Hangouts Chat API
- Wit.AI API
- Botometer Pro API
- BrainShop API
- BotDelive API
Top 10 Best Chatbot APIs
TL;DR: Here’s a table summarizing our findings:
|API Features||Pricing||Ease of Use|
|Facebook Messenger API||Communicate with people in Facebook groups and chats, make posts, answer questions, complete other specified actions||Free||Easy|
|Slack API||Interact with users automatically, send direct messages, get mentioned, embed bots on external platforms||Free||Easy|
|Telegram API||Get customized notifications, accept payments, integrate with external platforms||Free||Easy|
|ApiAI API||Create text-based and voice conversational interfaces and deploy on various platforms||Free and paid plans||Easy|
|ChatBot API||Create bot stories, interactions, rich messages, get performance reports||Free and monthly paid plan from $50||Easy|
|Hangouts Chat API||Streamline communications across teams, send notifications, post messages, automate tasks||Free||Easy|
|Wit.AI API||Create bots for human-like text-based or voice conversations||Free||Easy|
|Botometer Pro API||Analyze the activities of a Twitter account and determine whether it’s a bot||Free and monthly paid plan at $50||Easy|
|BrainShop API||Create human-like customizable chatbots||Free and paid plans||Easy|
|BotDelive API||Send and receive 2FA and push notifications via chatbots||Free||Easy|
The Facebook Messenger API allows you to build tools for sending and receiving messages on the Facebook platform. Furthermore, you can use the API to create chatbots for interacting with people on the Facebook Messenger platform automatically.
API features: With the Facebook Messenger API, you can create chatbots that can communicate with people in groups and chats. For example, you can create a bot that can make posts into groups, answer questions in real-time, like posts, send notifications, complete an action when mentioned in comments, or handle any specified request.
Price: The API is available for free.
Ease of use: Facebook provides detailed documentation and resourceful tutorials to help you in consuming the API fast and easily. There is also an active community who can help you with any integration issues.
2. Slack API
Slack is a popular messaging application that teams use for managing their communications. Apart from supporting other capabilities, the Slack API allows you to build chatbots for talking with users and automating tasks.
API features: With the Slack API, you can design bots for interacting with users through conversations. You can use the API to create a bot with a personality, name, and face that users can talk to. Consequently, the bot can send direct messages, get mentioned by users, invited or removed from channels, upload files, or post messages. Furthermore, you can embed the bot on your website or integrate it with other messaging platforms like LiveChat and Facebook.
Price: The API is offered for free. Using the Slack platform is also free, but comes with limited features. To get more features, you can go for any of its paid plans.
Ease of use: Slack keeps expansive and developer-friendly documentation to assist you in creating bots flawlessly.
3. Telegram API
Telegram is another messaging application that is popularly used around the world. With the Telegram Bot API, you can build bots that run inside the Telegram system and complete tasks automatically.
API features: The Telegram Bot API allows you to carry out various tasks on the platform, including getting customized notifications and news, accepting payments, integrating with other external services, building games, and creating custom tools such as translations and weather forecasts.
Price: The API is offered for free.
Ease of use: Telegram keeps comprehensive documentation that is full of samples to assist you in building bots without any hurdles.
4. ApiAI API
The ApiAI API, which is also called Dialogflow, is an API that uses artificial intelligence technology to let you create engaging and natural conversational experiences.
API features: With the ApiAI API, you can create AI-powered chatbots and take your user experience to the next level. The API allows you to create rich text-based and voice conversational interfaces, which you can deploy on your website, mobile application, Facebook Messenger, Google Assistant, and several other platforms. You can also use the API’s text-to-speech functionality to generate speech (audio file) from text content.
Price: You can access some basic features of the API for free. For more intense usage, you can go for any of its pay-as-you-go pricing plans.
Ease of use: There is simple documentation to help you in getting up and running with the API as fast as possible.
5. ChatBot API
The ChatBot API allows you to leverage advanced AI and machine learning technologies for creating intelligent bots for any service.
API features: With the ChatBot API, you can create bot stories that respond to frequent questions and cases, interactions that instruct the bot how to respond to different situations, and rich messages that let the bot respond with images and other types of content. The API also supports integrations with a wide range of platforms, such as LiveChat, Slack, or Facebook. Additionally, you can get reports about the bots’ performance and make any necessary improvements.
Price: There is a free 14-day period for trying the API. Thereafter, you’ll need to pay a minimum of $50 per month for continued usage.
Ease of use: There is helpful documentation, step-by-step tutorials, and premium support to help you in creating powerful chatbots without difficulties.
The Google Hangouts Chat API allows you to build resourceful bots that interact with users right into the Hangouts Chat platform.
API features: By using the Hangouts Chat API, you can streamline communications across teams. This API allows you to send relevant information, complete quick actions, and send notifications and alerts without leaving the conversation. With the API, you can post messages asynchronously, integrate external tools into Hangouts Chat, and create custom bots for automating tasks.
Price: The API is available for free.
Ease of use: Google is known for providing expansive and easy to use documentation for its APIs, and the Hangouts Chat API is no exception.
7. Wit.AI API
Wit.AI, as part of Facebook, Inc., is an open source project that offers natural language capabilities for developers to create applications that users can talk or text to.
API features: The Wit.AI API allows you to create intelligent bots that can engage in human-like conversations. With the API, you can build text or voice-based bots that can interact with users on their preferred messaging platform. The API also supports an extensive range of international and local languages.
Price: The API is offered for free.
Ease of use: There is an easy to follow documentation to help you in getting started with the API within a few minutes.
The Botometer Pro API allows you to know whether a Twitter account is a bot. Consequently, you can make informed decisions about your engagements on the social media platform.
API features: The Botometer Pro API leverages machine learning technology to analyze the activities of a Twitter account and determine if it’s a bot or human. After performing the classification, the API computes a 0-to-5 score, with zero denoting most human-like account and five denoting the most bot-like account.
Price: As long as you make less than 17,280 requests per day, you can use the API for free. Otherwise, you’ll need to subscribe to the paid plan, which is priced at $50 per month.
Ease of use: There is simple documentation to assist you in getting up and running with the API without any hassles.
BrainShop offers AI-backed capabilities for creating powerful customizable chatbots.
API features: With the BrainShop API, you can build a bot that understands words and responds the way humans do—just like Siri or Cortana. The API lets you create trainable robots, which are called “brains,” and integrate conversational experiences into your application.
Price: There is a free version of the API that comes with limited features. If you want to maximize the capabilities of the API, you can sign up for any of its paid plans.
Ease of use: BrainShop keeps detailed documentation to help you in consuming the API fast and smoothly. Users who opt for any of its paid plans also have access to email support.
10. BotDelive API
BotDelive is a service that lets developers send and receive 2FA and push notifications easily in web and mobile applications.
API features: With the BotDelive API, you can send and receive authentication and notification messages via chatbots and enhance the security of your application. This way, you’ll not have to compel users to install an app to receive notifications—you can use the already popular chat apps. Although the API currently supports Telegram and Messenger, there are plans to expand the service to other chatting platforms in the near future.
Price: The API is provided for free.
Ease of use: BotDelive maintains helpful documentation so that you can make the most of its API. It also offers email support for any integration challenges.
That’s Rakuten RapidAPI’s list of Top 10 Best Chatbot APIs. We hope you’ll find an API that you can use to create wonderful conversational experiences for your users!
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