01

About COTOHA API

This service makes it possible to easily use natural language processing and speech recognition with APIs, using the results of over 40 years of research by NTT Group.

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02

A Variety APIs for Natural Language Processing and Speech Processing

COTOHA API is capable of high-accuracy analysis of Japanese language, which has been considered as one of the most difficult languages.
It can be used for text analysis and a communication engine (Text/Voice).

Parsing

Since this API can extract "Who(what)?" and "What wrong?" from the input sentence by word unit called morpheme, it can be applied to data mining.

Reference Resolution

This API can extract pronouns such as "He/She", extract an antecedent that correspond to those pronouns, and outputs them as a pair of pronoun and object. In the case of analysis of conversation logs, it can make it more precise by replacing pronouns with antecedents.

Speech Recognition

You can receive voice data in file or streaming formats and return the formatted text data. You can also register a customer individual dictionary dedicated to speech recognition.

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03

Try the Analysis Demo

Experience demos of Natural Language Processing and Text-to-Speech.
Let's try it.

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04

Use Cases

The COTOHA API is used by a variety of system applications, including chat bots, voice text applications, and video conferencing systems.

NTT COMWARE CORPORATION

Sales Support BOT

* To be commercialized

Chat BOT, Salesforce, and COTOHA APIs work together. "Sales Support BOT" makes daily sales activities more efficient!

API Used
Named Entity Extraction
Parsing
Keyword Extraction

NTT Communications Corporation

AI Contact Center Solution on Cloud

A solution that provides high-function contact center services in a short period of time using Speech Recognition by AI.

API Used
Speech Recognition

NTT Communications Corporation

COTOHA Voice Insight

This is a cloud-based service that converts voice files stored in a call recorder into CSV format text files.

API Used
Speech Recognition

NTT Communications Corporation

Arcstar TV Conferencing

We integrated AI technology into videoconferencing. This service support communication with foreign countries by making speeches during meetings into texts and automatically translating them.

API Used
Speech Recognition

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05

Pricing Based on Usage

There are two plans of COTOHA APIs: for Developers Plan (Free) and for Enterprise Plan (2-Month Free Subscription). You can choose the plan according to the purpose.

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Try It Out In Just 3 Steps.

STEP
01

Email
Registration

STEP
02

User Informations
Registration

STEP
03

Start with
Published Account Information

News

  • Info

    2020.09.03 09:00

    音声認識APIアップデートのお知らせ
  • info

    2020.04.23 11:00

  • Info

    2020.03.23 23:00

    Text Classification, Summarization, Speech-to-Text API, New release / Updates!
    "Text Classification" has been newly added to "COTOHA API".
    "Summarization (beta version)" is now the official version "Summarization". (You can only use the for Enterprise account.)
    Alos, We have released a new version of the Speech-to-Text API.
    Please see the release notes for more information.
  • Info

    2020.03.23 22:00