Chari-Loto Introduces Three Mobile Carriers' Unified Identity Verification API, "Carrier Authentication Service," Reducing Development Workload and Implementation Period by Approximately 50%
NTT Data's OpenCanvas® Carrier Authentication Service, which unifies identity verification APIs from Japan's three major mobile carriers, has been implemented by Chari-Loto for its online bicycle and auto race betting service. This integration streamlines member registration by eliminating the need for physical ID uploads, allowing instant verification via smartphone and significantly reducing Chari-Loto's development and operational efforts. The service aims to enhance user experience, prevent registration abandonment, and increase membership, with NTT Data planning further expansion into various industries requiring robust identity verification.
📋 Article Processing Timeline
- 📰 Published: April 2, 2026 at 22:00
- 🔍 Collected: April 2, 2026 at 13:34
- 🤖 AI Analyzed: April 17, 2026 at 06:03 (352h 28m after Collected)
NTT Data Corporation (hereinafter, NTT Data) began introducing its OpenCanvas® Carrier Authentication Service (hereinafter, this service), which allows the use of identity verification APIs (note 1) from Japan's three major mobile carriers through a single interface, to Chari-Loto, Inc. (hereinafter, Chari-Loto)'s "Chari-Loto" betting service for bicycle and auto races in March 2026.
This service is characterized by NTT Data integrating the differing API specifications for each carrier, allowing the identity verification APIs of the three mobile carriers to be used with a single connection. Based on user consent, the service provides subscriber information and user information held by carriers to service providers, which Chari-Loto will utilize for identity and age verification during member registration. The introduction of this service eliminates the need for users to photograph and upload identification documents, allowing them to complete authentication instantly on their smartphones. This is expected to curb abandonment during member registration, and Chari-Loto anticipates approximately a 50% reduction in service development man-hours and implementation period.
By using this service, Chari-Loto aims to improve the UI/UX during member registration on its member site and thereby increase the number of registered members. NTT Data will collaborate with mobile carriers to expand this service to a wide range of industries.
【Background】
In the public sports betting industry, the purchase of betting tickets by minors is prohibited. Therefore, when selling tickets online, identity and age verification, such as uploading identification documents, is mandatory during member registration on the sales site. However, identity verification through identification document upload often led to high abandonment rates during member registration due to the effort involved in photographing the ID, physical and psychological burden of facial recognition, and re-operations due to photo deficiencies. To address these issues, Chari-Loto decided to introduce this service provided by NTT Data as a means to achieve reliable identity verification while reducing the burden on users.
【Overview】
This service allows users to select their contracting mobile carrier and, by entering a PIN and agreeing to provide information, securely transmits subscriber and user information held by the mobile carrier to the service provider. By utilizing the identity verification API mechanism provided by each mobile carrier based on user consent, service providers can perform identity and age verification.
The greatest feature of this service is that NTT Data absorbs the API differences among the three mobile carriers, enabling compatibility with all three carriers through a single connection. By using this service, Chari-Loto will achieve smooth implementation and cost reduction for mobile carrier identity verification APIs, as well as early UI/UX improvement.
■Benefits for Service Providers (Chari-Loto)
For service providers, individual implementations for each mobile carrier become unnecessary. Chari-Loto expects approximately a 50% reduction in development man-hours and implementation period for identity verification functions compared to traditional methods. Furthermore, automation of identity verification processes will reduce operational load related to screening and inquiry handling, leading to efficiency gains in maintenance and operations. Additionally, by preventing abandonment during member registration through the introduction of this service, maximizing the number of registered members is anticipated.
■Benefits for Service Users
For users, there is no longer a need to photograph identification documents or re-operate due to image deficiencies; identity and age verification can be completed instantly with just smartphone operations. Previously, procedures could be stalled due to issues with identification documents, taking time to complete registration and sometimes leading to abandonment. With the introduction of this service, identity and age verification can be completed solely through smartphone operations, allowing member registration to be completed in as little as 3 minutes. This prevents abandonment during member registration and enables smooth commencement of various Chari-Loto services.
■Member Registration Procedure Using "Identity Verification API"
① Select Carrier (Chari-Loto screen)
Select the mobile carrier the user has a contract with.
(If connected to Wi-Fi, switch to carrier communication before proceeding)
② Enter PIN (Carrier screen)
Enter the 4-digit PIN* *PIN is usually set when contracting for mobile service
③ Agree to Information Provision (Carrier screen)
Confirm the name of the service provider and service to which information will be provided, and the list of information to be provided, displayed on the screen. If there are no issues, press the agree button.
④ Confirm Registration Information (Chari-Loto screen)
Confirm the list of information provided by the carrier. If there are no issues, press the "Register" button.
(After this, proceed to set passwords and other necessary information for logging into various Chari-Loto sites)
【Future Outlook】
Chari-Loto aims to improve UI/UX during member registration and thereby increase the number of registered members by introducing this service. Leveraging its strength in integrally handling the identity verification APIs of the three mobile carriers, NTT Data will promote expansion into industries with high identity verification needs, such as payment, entertainment, and e-commerce, in addition to the public sports betting industry. Moving forward, NTT Data will continue to contribute to improving user experience and optimizing operator efficiency by providing highly flexible services utilizing APIs.
【Notes】
（Note 1）Identity verification APIs provided by mobile carriers
・NTT Docomo: Identity Verification Assist API
・KDDI: Identity Verification Biz
・SoftBank: Identity Verification Proxy Service
*Other product names, company names, and organization names are trademarks or registered trademarks of their respective companies.