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Technical documentation · GTC Prepay

Mobile top-ups powered by
next-generation infrastructure

APIs, operations portal, and observability to integrate, run, and scale your top-up business.

Built for mission-critical operations

Continuity, speed, and full traceability on every top-up, backed by SLA commitments and dedicated support.

  • Cloud-native architecture
  • Operations portal and specialized APIs
  • Real-time observability

99.95%

SLA Availability

< 2 s

Average response time

24/7

Support and monitoring

High availability

Cloud-native architecture that minimizes single points of failure and sustains top-up operations with consistently high success rates.

Millisecond-level response

Low latency in every call. Fast responses that improve user experience and create a tangible competitive advantage.

API and portal in one platform

Robust API integration combined with operational control through a modern and intuitive administrative portal.

How teams work with GTC

Three clear steps: integrate through the API, operate with visibility, and scale with the right infrastructure and support.

01

Integrate

Well-documented endpoints, secure authentication, and code examples help your team connect quickly.

02

Operate

Transactions, metrics, and statuses in real time from either the portal or the API for data-driven decisions.

03

Scale

Infrastructure designed for high volume and continuous operations, with traceability and control at every step.

GTC: The top-up API for B2B companies in Mexico

At GTC, we help B2B companies in Mexico sell mobile top-ups profitably, securely, and without interruption. Our API connects your operation to major carriers and gives you end-to-end control over every recharge.

Top-ups are a high-frequency product and highly sensitive to end-user experience. Outages, failed recharges, or even second-level delays directly affect revenue and customer trust.

  • Handle high top-up volume during peak hours and commercial campaigns.
  • Reduce operational errors caused by fragile integrations or manual processes.
  • Maintain full traceability for each top-up, from request to reconciliation.

For teams that build on APIs

Our platform is built so top-ups live inside your own products and digital channels, without relying on external flows or legacy systems.

  • For business teams: build offers, bundles, and commercial models based on real performance data.
  • For engineering teams: a clear, predictable, secure API backed by solid observability, logging, and operational practices.
GTC Commitment

At GTC, we deliver more than an API. We become your technology partner for the top-up business in Mexico, supporting your team from integration design to production launch and continuous optimization.

Our B2B ecosystem

The platform is organized around three pillars that work together to keep your operation running continuously.

Transactional API

GTC API Connector

The core engine connecting your platform to major carriers such as Telcel, BAIT, and Movistar.

  • Enterprise-grade security: Google identity-based authentication integrated with Firebase Auth.
  • Consistent performance: parallel processing keeps response times stable even during demand spikes.
Operations

GTC Portal

The control interface for human operations across your API-based top-up business.

  • Centralized administration: role management (Superadmin, Admin, Consultant) and product catalogs with MXN amounts.
  • Real-time visibility: dashboards with success/failure metrics and behavior by carrier and channel.
Financial integrity

Reconciliation and reporting

The layer that ensures every top-up is properly recorded, reconciled, and reported.

  • Automated reconciliation: processes aligning carrier, internal, and commercial reporting data.
  • Clear numbers: reports that reduce spreadsheet dependence and lower human error risk.

Start with confidence

Our documentation is written with technical precision so your team can integrate and operate in record time.

Ready to integrate?

Review the introduction, authentication, and key endpoints to launch your operation with GTC.