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The Rise of Network APIs: Why Telecom Networks Are Becoming Programmable

By PAiCore Technology ● 4 min read

Telecom networks have always contained valuable capabilities—from subscriber identity and authentication to location, connectivity, and quality of service.

Historically, however, accessing these capabilities required specialised telecom integrations and knowledge of protocols such as SS7, MAP, and Diameter.

Network APIs are changing that model.

Network APIs provide a modern interface through which applications, enterprises, and digital platforms can access selected capabilities of mobile networks. Instead of requiring every application developer to understand telecom signalling, network capabilities can increasingly be exposed through standardised APIs.

The industry is building a common ecosystem around GSMA Open Gateway and CAMARA, with operators, technology providers, aggregators, and developers working toward more interoperable Network APIs. GSMA describes Network APIs as a way to make mobile-network capabilities accessible through standardised interfaces, including capabilities related to identity, location, and quality of service.

From Connectivity to Programmable Network Services

The significance of Network APIs goes beyond simply providing another interface.

Traditionally, mobile networks were largely consumed through telecom-specific systems. Applications often depended on intermediaries, proprietary interfaces, or complex integrations to access network capabilities.

The Network API model introduces another layer:

Application → API → Network Capability

This allows capabilities already available within an operator’s infrastructure to become services that applications can consume through modern interfaces.

Examples include:

Number Verification
SIM Swap detection
Location Verification
Location Retrieval
Geofencing
Quality on Demand
Device information
Silent Authentication

The GSMA Open Gateway API portfolio includes capabilities across areas such as authentication and fraud prevention, location services, device information, connectivity, and communication quality. Many of the service APIs are defined within the CAMARA project.

Why Standardisation Matters

One of the biggest challenges for Network APIs is interoperability.

If every operator exposes a network capability differently, an enterprise wanting to deploy across multiple markets still faces multiple integrations.

This is where GSMA Open Gateway and CAMARA become important.

CAMARA is an open-source project within the Linux Foundation focused on defining, developing, and testing standardised APIs for accessing telecom network capabilities. It works closely with the GSMA Operator Platform Group to align API requirements and definitions.

GSMA Open Gateway provides the broader industry framework for making these standardised network capabilities available through mobile operators.

The objective is straightforward:

Standardise the API experience while allowing operators to retain their underlying network infrastructure.

This approach is already moving beyond experimentation. In March 2026, GSMA reported that 86 operator groups representing more than 300 networks and 80% of global mobile connections were aligned around a common API framework, with more than 60 channel partners involved in commercialising Network APIs.

The Network API Gateway: Connecting APIs to Telecom Signalling

Standardised APIs solve the northbound application-interface challenge. They do not, by themselves, remove the complexity of the network underneath.

An operator may still have infrastructure based on technologies such as SS7/MAP, SIGTRAN, and Diameter, together with HLR/AuC and 3GPP AAA environments.

This is where a Network API Gateway becomes an important architectural component.

PAiCore’s Network API Gateway is designed to bridge modern HTTP/API applications with carrier-grade telecom signalling through SS7/MAP and Diameter. Its event-driven architecture provides protocol interworking while helping decouple API requests from the response characteristics of telecom signalling.

The architecture can therefore be represented as:

Modern Applications
↓
REST / HTTP APIs
↓
Network API Gateway
↓
SS7 / MAP or Diameter
↓
Mobile Network

This approach allows operators and technology providers to modernise access to existing network capabilities without requiring every application to implement telecom signalling protocols.

PAiCore’s current Network API Gateway also supports CAMARA-aligned use cases, including capabilities such as Location Retrieval, Location Verification, Geofencing Subscriptions, and Number Verification.

Where Network APIs Are Heading

The Network API ecosystem is moving from standardisation and experimentation toward broader commercial adoption.

GSMA’s 2026 materials describe Network APIs as an increasingly important interface for exposing mobile-network capabilities to enterprises and applications, with the industry now focused on scaling adoption, commercialisation, and interoperability.

For operators, the opportunity is to turn existing network capabilities into programmable services.

For enterprises, Network APIs can provide new sources of trusted network intelligence.

For developers, they offer a simpler way to consume telecom capabilities without requiring deep knowledge of underlying signalling technologies.

And for infrastructure providers, the challenge is to connect the standardised API world with the complex signalling environment that already exists.

That is the role of the Network API Gateway: making the network programmable without requiring the network to be rebuilt.

Explore PAiCore Network API Gateway

PAiCore’s Network API Gateway provides multi-protocol interworking between REST/HTTP, SS7/MAP, and Diameter and supports CAMARA-aligned Network API use cases. The platform is designed around an event-driven architecture and supports carrier-grade deployment requirements such as high availability, load balancing, and fault tolerance.

Explore PAiCore Network API Gateway

PAiCore also provides open-source repositories for developers, system integrators, and telecom engineers exploring modern telecom signalling architectures.

Explore PAiCore Open-Source Repositories

Standards & Industry References

GSMA Open Gateway

GSMA Open Gateway provides the industry framework for standardised access to mobile-network capabilities.

CAMARA

CAMARA Project

CAMARA is the Linux Foundation open-source project developing and testing standardised telco Network APIs.

GSMA Open Gateway API Descriptions

The GSMA maintains descriptions of mature Open Gateway APIs, with the northbound service APIs defined within the CAMARA project.

GSMA Open Gateway Technical Realisation Guidelines

These guidelines cover areas including API routing, consent, onboarding, service consumption, and operational integration.

The Future of Programmable Telecom Networks

Network APIs are becoming a new interface to the mobile network.

The opportunity is not simply to expose telecom capabilities through APIs, but to make those capabilities easier to consume, more interoperable, and more accessible to the wider digital ecosystem.

As standardisation through GSMA Open Gateway and CAMARA continues to mature, the next phase of telecom innovation will depend on how effectively the industry connects modern applications with the network capabilities already in place.

The network doesn’t need to be rebuilt to become programmable. It needs the right interface to unlock what is already there.