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GSMA Open Gateway API Descriptions

Open Gateway northbound service APIs are defined within the CAMARA project

The APIs in the following table are mature: APIs which are stable or already part of two or more CAMARA Meta releases. 

More details can be found on all APIs in the CAMARA API Overview page: https://camaraproject.org/api-overview 

Authentication and Fraud PreventionLocation ServicesCommunication ServicesCommunication QualityDevice InformationComputing ServicesPayments and Charging
Call Forwarding SignalGeofencing SubscriptionsWebRTC Call HandlingApplication ProfilesConnected Network TypeSimple Edge DiscoveryBlockchain Public Access
Customer InsightsLocation RetrievalWebRTC Event HandlingConnectivity InsightsConnected Network Type SubscriptionsCarrier Billing
Device SwapLocation VerificationWebRTC RegistrationConnectivity Insights SubscriptionDevice IdentifierCarrier Billing Refund
Know Your Customer Age VerificationPopulation Density DataQoS ProfilesDevice Reachability Status
Know Your Customer Fill InRegional Device CountQoS ProvisioningDevice Reachability Status Subscription
Know Your Customer MatchQuality on DemandDevice Roaming Status
Know Your Customer TenureDevice Roaming Status Subscription
Number Recycling
Number Verification
One Time Password SMS
Scam Signal
SIM Swap
SIM Swap Subscription

Authentication and Fraud Prevention

Call Forwarding Signal

Customer Insights

API Description

Provides and index or scoring related to the user’s credit profile 

https://camaraproject.org/customer-insights/

Device Swap

API Description

Check if the MSISDN has had a change of device in the last 30 days 

https://camaraproject.org/device-swap

Use Case 

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/gsma-open-gateway-resources/?category=device-swap

Know Your Customer Age Verification

Know Your Customer Fill-In

API Description

Fill in web dialogues using operator data 

https://camaraproject.org/know-your-customer-fill-in/

Know Your Customer Match

Know Your Customer Tenure

API Description

Verify the length of tenure for a mobile user who is bound to a mobile number with their current mobile operator 

https://camaraproject.org/know-your-customer-tenure/

Number Recycling

Number Verification

API Description

Allows users to verify the phone number of a connected device 

https://camaraproject.org/number-verification

Case Study 

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/08/Banco-Dayvcoval-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/06/China-Telecom-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/09/LankaPay-Case-Study-V2.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/08/BRI-Bank-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/08/Easy-Buy-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/07/VIRe-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/07/OTPBanka-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/06/Tiger-Brokers-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/07/ABA-Bank-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/06/Cabify-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/06/Lydia-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/06/TIM-Brazil-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/06/Telkomsel-Case-Study.pdf

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/06/Singtel-Case-Study.pdf

One Time Password SMS

Scam Signal

API Description

The “Scam Signal” API allows businesses to protect their customers from impersonation scams, particularly Authorized Pushed Payment (APP) fraud.

APP fraud involves a criminal tricking someone into sending them money, often through impersonating representatives from banks, government departments, or even a family member. They can also deceive a victim into making advance payments for fraudulent investments, counterfeit goods and services, or even extort money through a seemingly genuine romance or friendship.

The Scam Signal API is not available on CAMARA. It was developed in accordance with CAMARA standards and within the framework of GSMA OPAG. To maintain the effectiveness of the API, it is stored in a private GSMA repository. Access to this repository is strictly controlled by GSMA, and any requests for access should be directed to the appropriate GSMA contact.

Case Study 

https://www.gsma.com/solutions-and-impact/gsma-open-gateway/wp-content/uploads/2025/06/Vodafone-Case-Study.pdf

SIM Swap

SIM Swap Subscription

API Description

Get notification is a SIM changes 

https://camaraproject.org/sim-swap-subscriptions/

Location Services

Geofencing Subscriptions

API Description

Get notifications if a device reaches and area 

https://camaraproject.org/geofencing-subscriptions/

Location Retrieval

Location Verification

Population Density Data

API Description

Get dynamic population density data in a specific area for a future date & time 

https://camaraproject.org/population-density-data/

Region Device Count

Communication Services

Web RTC Call Handling

API Description

Create, recover, update and terminate 1-1 voice and video sessions 

https://camaraproject.org/webrtc-apis/

Web RTC Event Subscription

API Description

Receive events about updates of an active session or new session requests (incoming calls) 

https://camaraproject.org/webrtc-apis/

Web RTC Registration

API Description

Manage registration and Connectivity (RACM) towards MNO’s IMS network 

https://camaraproject.org/webrtc-apis/

Communication Quality

Application Profiles

API Description

Share information about applications relevant for network related decision making 

https://camaraproject.org/application-profiles/

Connectivity Insights

Connectivity Insights Subscriptions

API Description

Alerts the consumer if and when the QoS threshold has breached 

https://camaraproject.org/connectivity-insights-subscriptions/

QoS Profiles

API Description

Provide the ability to set certain profile of QoS 

https://camaraproject.org/qos-profiles/

QoS Provisioning

API Description

Creating, getting, updating and removing a QoS provision for a device 

https://camaraproject.org/qod-provisioning/

Quality-On-Demand

Device Information 

Connected Network Type

API Description

Query the device’s connected network type 

https://camaraproject.org/connected-network-type/

Connected Network Type Subscriptions

API Description

Receive notifications when the connected network type changes 

https://camaraproject.org/connected-network-type-subscriptions/

Device Identifier

API Description

Check the identity of the subscribers device 

https://camaraproject.org/device-identifier/

Device Reachability Status

API Description

Check the network connection status of a device 

https://camaraproject.org/device-reachability-status/

Device Reachability Status Subscriptions

API Description

Get notifications if the connection status of a device changes 

https://camaraproject.org/device-reachability-status-subscriptions/

Device Roaming Status

API Description

Check the roaming status of a device 

https://camaraproject.org/device-roaming-status/

Device Roaming Status Subscriptions

API Description

Get notifications if the roaming status of a device changes 

https://camaraproject.org/device-roaming-status-subscriptions/

Computing Services 

Simple Edge Discovery

Payments and Charging

Blockchain Public Address

API Description

Manage a blockchain public address associated to a phone number 

https://camaraproject.org/blockchain-public-address/

Carrier Billing

Carrier Billing Refund

API Description

Perform a refund over a given payment 

https://camaraproject.org/carrier-billing-refund/