The Central Bank of West African States has opened public access to the developer sandbox for the Business API of the Interoperable Platform of the West African Economic and Monetary Union’s Instant Payment System (PI-SPI). The test environment, available via https://pispi.bceao.int, is intended to allow enterprises and IT solution providers to test their solutions in a secure setting aligned with international standards for payment systems. The sandbox includes technical documentation, integration guides and a support centre to assist firms with development and testing.