Glossary
What is CAMARA and GSMA Open Gateway?
CAMARA is an open source project hosted by the Linux Foundation that defines standardised, carrier-neutral network APIs, working closely with the GSMA's Operator Platform Group to align on requirements. GSMA Open Gateway is the commercial initiative through which mobile network operators actually expose those standardised APIs to developers. Together they are the industry's attempt to make network-level signals, including number verification and SIM swap detection, available through one consistent interface instead of a separate bespoke integration per carrier.
What problem this is solving
Historically, a business that wanted a network-level signal such as carrier status or SIM swap history had to integrate separately with each mobile network operator, or go through a signalling aggregator with its own proprietary interface. CAMARA defines a common API specification for these functions; GSMA Open Gateway is how operators commit to exposing them so that a call to one operator's implementation looks the same as a call to another's.
The API catalogue covers authentication and fraud prevention functions including Number Verification and Sim Swap, alongside device, location and network quality APIs used for other purposes such as connectivity insights and quality-on-demand.
Why this matters for fraud and KYC teams
Number Verification and Sim Swap are the two CAMARA-defined APIs most relevant to fraud and onboarding decisions: Number Verification confirms a phone number is genuinely associated with the device making a request, and Sim Swap surfaces whether a SIM has recently changed for a given number. As more operators commit to Open Gateway, the promise is a more consistent, standardised way to reach this kind of network-level signal across markets, reducing the amount of carrier-specific integration work a vendor or in-house team needs to do.
This is industry direction and infrastructure context, not a claim about any specific vendor's current coverage. Adoption varies by operator and market, and a standard existing does not mean every carrier in every country has switched it on yet.
Where Telebase fits
Telebase's SIM swap API targets the same underlying signal that the CAMARA Sim Swap specification defines: whether a number has had a recent SIM change. Telebase's approach is to abstract carrier-by-carrier registration behind one consistent API response, which is the same interoperability goal CAMARA and Open Gateway are pursuing at the industry level.