Project Dunbar (2021 to 2022)
Four central banks (Australia, Malaysia, Singapore and South Africa) built two prototypes of a shared platform for settling several central bank digital currencies across borders, one on Corda with R3 and one on Quorum with Partior. The BIS lists it as concluded, with results published on 22 March 2022.
Project mBridge
A multi-CBDC payments platform that grew out of Inthanon-LionRock. Founding partners were the BIS Innovation Hub, the Bank of Thailand, the Central Bank of the UAE, the PBoC Digital Currency Institute and the Hong Kong Monetary Authority; the Saudi Central Bank joined in 2024. It reached a minimum viable product in mid-2024 and the BIS handed it over to its partners in October 2024.
Project Agorá
Run with the Institute of International Finance, Agorá tested wholesale cross-border payments using tokenised central bank reserves and tokenised commercial bank deposits. Seven central banks and more than 40 private firms took part. The May 2026 report says atomic settlement is achievable across currencies and that testing will advance towards real value.
Project Nexus
Aims to connect domestic instant payment systems through one standard platform, so a payment can reach another country in most cases within 60 seconds. The BIS Singapore Centre started it in 2022. In 2025 the central banks of India, Indonesia, Malaysia, the Philippines, Singapore and Thailand formed Nexus Global Payments to take it live.
Project Helvetia
A multi-phase study with the Swiss National Bank and SIX on settling tokenised assets in central bank money. Phases I and II reported in December 2020 and January 2022. The SNB then piloted real Swiss franc wholesale CBDC from 1 December 2023 to 30 June 2024 without the BIS Innovation Hub.
Project Mariana
Tested cross-border trading and settlement of hypothetical euro, Singapore dollar and Swiss franc wholesale CBDCs between simulated institutions, using an automated market maker on a public blockchain. Launched November 2022 and concluded with a final report on 28 September 2023.
Project Aurum 2.0
A Hong Kong Centre project with the HKMA exploring privacy-enhancing technology for digital cash, combining encryption, BBS+ signatures, pseudonym-based ownership and zero-knowledge proofs. Listed as ongoing, with its page updated on 13 October 2026.