# GTI Switch

> Source: https://docs.barcoder.ai/docs/standards/gti-switch
> research date 2026-05-29 · extracted at 2026-10-04
> Publisher: Barcoder — encyclopedia of QR, barcode and payment-code standards

Specifications:
- [GTI Switch — São Tomé](https://www.gtiswitch.com/stp/)

## Overview

> **Note on classification.** This entry was originally bucketed as a QR standard, but Gti Switch is **not a QR-symbol standard**. It is reclassified as `National switch` — a são tomé interbank switch (afdb $3. The wiki shows no playground because there is no QR payload to encode; the slug is retained to avoid breaking incoming links.

**GTI Switch** is **São Tomé and Príncipe's national payment switch**, introducing **the future of payments in São Tomé and Príncipe + revolutionizing transactions across sectors by interconnecting all financial institutions + empowering mobile money, electronic banking, digital wallets, interoperability, and digital payments** <sup>[1][1], [2][2], [Sao Tome and Principe report](https://docs.barcoder.ai/docs/payments/ST)</sup>. The solution **simplifies financial transactions by enabling users to send and receive money, pay bills, and make purchases through their mobile phones, eliminating the need for physical cash + making payments safer and more convenient**.

**Major modernisation event**: In **March 2023**, the Board of Directors of the **African Development Bank (AfDB)** + **São Tomé and Príncipe's government** signed a **$3.2 million loan agreement for upgrade of the National Switch payment system**. The upgrade will allow for **automatic Real Time Gross Settlement (RTGS) modules + Automated Clearing House (ACH) functionalities** which strengthen clearing + settlement of payments — with **RTGS allowing high-value transfers to be settled in the Central Bank in real time, reducing liquidity and credit risks within the system**.

The structural significance: São Tomé and Príncipe — **one of Africa's smallest island nations (~220K population, two-island archipelago)** — represents **small-state payment-infrastructure-modernisation challenges**. **PayLogic's role across multiple African national-switch deployments** (Comoros [National Switch](https://docs.barcoder.ai/docs/standards/national-switch), Equatorial Guinea [BANGE Digital](https://docs.barcoder.ai/docs/standards/bange-digital), Lesotho LeSwitch) reflects **specialised vendor focus on small-African-nation payment-modernisation projects**. The **AfDB + STP government partnership + $3.2M loan + RTGS + ACH upgrade** illustrates **multilateral-development-finance support for small-island-state payment-modernisation**.

## History

**Background — São Tomé and Príncipe payment landscape** <sup>[Sao Tome and Principe report](https://docs.barcoder.ai/docs/payments/ST)</sup>:
- **Banco Central de São Tomé e Príncipe (BCSTP)** — central bank.
- Major STP banks: BISTP (Banco Internacional de São Tomé e Príncipe), Afriland First Bank STP, Ecobank STP.
- Small-island-archipelago (~220K population) context.
- **GTI** — payment-switch operator.

**GTI Switch launch** <sup>[1][1]</sup>:
- National payment switch for STP.

**March 2023 — AfDB $3.2M loan agreement signing** <sup>[3][3]</sup>:
- Major modernisation milestone.
- RTGS + ACH module upgrade.

**National Switch upgrade scope** <sup>[3][3]</sup>:
- Automatic RTGS for high-value real-time settlement.
- ACH for clearing + settlement.
- Strengthened clearing + settlement infrastructure.

## Technical specification

GTI Switch is **GTI-operated São Tomé and Príncipe national payment switch with AfDB-funded RTGS + ACH upgrade** <sup>[1][1], [2][2]</sup>:

| Layer | Description |
|---|---|
| **Operator** | **GTI** |
| **Country** | São Tomé and Príncipe |
| **Currency** | STN (São Tomé and Príncipe dobra) |
| **Funder for upgrade** | **African Development Bank (AfDB)** ($3.2M loan, March 2023) |
| **System scope** | National payment switch |
| **Functionality** | Mobile money, electronic banking, digital wallets, interoperability, digital payments |
| **Upgrade modules** | **Automatic RTGS + ACH** |
| **Population** | ~220,000 |

## Use cases

**P2P transfers via mobile** <sup>[1][1]</sup>: Cardinal use.

**Bill payments via mobile** <sup>[1][1]</sup>: Utilities + services.

**Mobile-purchase payments** <sup>[1][1]</sup>: Merchant commerce.

**Multi-FI interoperability** <sup>[1][1]</sup>: Cross-institution transactions.

**High-value RTGS settlement (post-upgrade)** <sup>[3][3]</sup>: Real-time central-bank-settled.

**Clearing + settlement (ACH post-upgrade)** <sup>[3][3]</sup>: Bulk payments.

**Mobile money + electronic banking + digital wallets bridging** <sup>[1][1]</sup>: Multi-channel.

## Implementations & ecosystem

**Operator**: **GTI**.

**Regulator**: **Banco Central de São Tomé e Príncipe (BCSTP)**.

**Funder for upgrade**: **African Development Bank (AfDB)**.

**Participating institutions**: STP banks (BISTP, Afriland First Bank STP, Ecobank STP), mobile money operators, digital-wallet providers.

**Related African national-switch deployments by PayLogic**: [National Switch](https://docs.barcoder.ai/docs/standards/national-switch) Comoros, [BANGE Digital](https://docs.barcoder.ai/docs/standards/bange-digital) Equatorial Guinea, LeSwitch Lesotho.

## Fun facts

- **March 2023 AfDB $3.2M loan agreement**: Multilateral-development-finance milestone.
- **Population ~220,000 (small-island-archipelago)**: One of Africa's smallest nations.
- **RTGS + ACH module upgrade**: Comprehensive modernisation scope.
- **Multi-channel (mobile + electronic banking + digital wallets) bridging**: Comprehensive design.
- **Two-island archipelago (São Tomé + Príncipe)**: Geographic specificity.
- **AfDB multilateral-development support**: International backing.
- **National-switch model**: Similar to KM, GQ, LS PayLogic deployments.

## Comparison

| Feature | GTI Switch (ST) | [National Switch](https://docs.barcoder.ai/docs/standards/national-switch) (KM Komor Pay/Ats) | [BANGE Digital](https://docs.barcoder.ai/docs/standards/bange-digital) (GQ PayLogic) | LeSwitch (LS PayLogic) | [Vinti4](https://docs.barcoder.ai/docs/standards/vinti4) (CV) |
|---|---|---|---|---|---|
| Operator | GTI | BCC | BANGE | LeSwitch | SISP |
| Type | **National payment switch + RTGS + ACH (post-upgrade)** | National-switch dual system | National bank digital + multi-card | National interoperable switch | National card + ATM + POS + QR |
| Country | São Tomé and Príncipe | Comoros | Equatorial Guinea | Lesotho | Cape Verde |
| Population | **~220K** | ~880K | ~1.5M | ~2.2M | ~550K |
| Funder | **AfDB $3.2M (March 2023)** | World Bank PADSF | Commercial | Local | Local |

## Status

**Active, upgrading with AfDB support** <sup>[1][1], [2][2]</sup>:
- **GTI operator**.
- **March 2023 AfDB $3.2M loan agreement signing**.
- **RTGS + ACH module upgrade in progress**.
- **Multi-channel (mobile money + electronic banking + digital wallets) interoperability**.

## Sources

[1]: https://www.gtiswitch.com/stp/ "GTI Switch — São Tomé"
[2]: https://inclusiontimes.com/switching-up-the-switch-sao-tome-and-principes-national-payment-switch-gets-a-fix/ "ST Switch fix — Inclusion Times"
[3]: https://www.afdb.org/en/news-and-events/sao-tome-and-principe-african-development-bank-signs-32-million-loan-agreement-upgrade-national-switch-payment-system-60125 "AfDB $3.2M ST loan agreement"
[paylogic]: https://pay-logic.com/national-payment-switch/ "National Payment Switch — PayLogic"
[realnews]: https://realnewsmagazine.net/sao-tome-and-principe-afdb-signs-3-2-million-loan-agreement-for-upgrade-of-national-switch-payment-system/ "ST AfDB loan — Realnews Magazine"

- [1] [GTI Switch — São Tomé][1]
- [2] [ST Switch fix — Inclusion Times][2]
- [3] [AfDB $3.2M ST loan agreement][3]
- [paylogic] [National Payment Switch — PayLogic][paylogic]
- <sup>[Sao Tome and Principe report](https://docs.barcoder.ai/docs/payments/ST)</sup> `reports/countries/ST-sao-tome-and-principe.md`

## Deployments

Found in the following country reports (grep across `reports/countries/`):

- **ST** — [ST-sao-tome-and-principe.md](https://docs.barcoder.ai/docs/payments/ST)

## Regions / aggregations not mapped to a single country

- Sao Tome