Illumination from Pontifical of Renaud de Bar, 1303–1316.

API3 Core Technical Team Report, March 2022

We have released Airnode v0.5, which implements all remaining requirements for Beacons. We’re continuing having our contracts audited in a rolling fashion, and a new preliminary report verifies (for the fourth time) that the v0 protocol contracts do not contain any unintended vulnerabilities. Accordingly, you can expect a v0.6 release in the coming April that rolls out the v0 protocol on more EVM chains. Furthermore, work has started on porting Beacons and dAPIs to some non-EVM chains. Details about the scope and budgeting of this work will be shared in the coming months.

After the v0.5 release, we were able to focus more on Beacon-specific development. The contract that implements Beacons and dAPIs is designed to be compatible with all Airnode protocols (RRP, PSP, relayed RRP, relayed PSP, API-signed data). In contrast, the ETHDenver Beacons are being operated only using RRP — which has proven itself to be quite reliable on its own. We will operate our production Beacons using PSP for cost-efficiency and improved responsiveness. On top of this, we will utilize the API-signed data served by the HTTP endpoint implemented in Airnode v0.5. This scheme is superior to even PSP in terms of cost-efficiency and responsiveness, but more importantly, it allows the core technical team to respond to incidents without disturbing the trust-minimized, first-party nature of the service. Using PSP and API-signed data simultaneously allows us to enjoy the advantages of both without any degradation in trustlessness because the data will always be cryptographically signed by the API provider.

Finally, for those who have missed it, we have pushed an updated DAO dashboard version to production. With that, let me link you to an article where we do a deep dive into dAPIs.

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