Home Pricing Pricing for Access to Banking and Licensing UK Small Payment Institution (SPI) Pricing UK Small Payment Institution (SPI) Pricing —This page was last updated on March 14, 2023.– Related posts: EU Small Payment Institution (SPI) Pricing Small Payment Institution (SPI) UK SPI – Small Payment Institution License Information, Cost & Application Summary UK Authorized Payment Institution (API) Pricing EU Authorized Payment Institution (API) Pricing