Katsushika Hokusai, Remarkable Views of Bridges in Various Provinces: Old View of the Boat-bridge at Sano in Kōzuke Province, 1833.

API3 Core Technical Team Report, April 2022

We have finalized our audit with Trail of Bits that covers the Airnode protocol v1 — RRP, PSP, relayed-RRP, relayed-PSP and signed data-based usage. All of these protocols are used in our dAPI server contract, and will go into production soon to power Beacons. In addition to the protocol contracts, the Airnode monetization contracts are audited as well, which means they can be used as is (for example, if you want to set up an Airnode that only responds if the requester has paid a subscription fee in stablecoins) or as a solid foundation to build your custom logic on. Our work at the protocol side is done for the foreseeable future. Now, the node needs to catch up to implement these protocols fully.

A lot of the v0 and v1 contracts overlap, which means the audit above also applies to protocol v0. With this added assurance, we have released Airnode v0.6, where we have rolled out official Airnode integrations to the following smart contract platforms and their testnets: Ethereum, Arbitrum, Avalanche, BNB Chain, Fantom, Gnosis Chain, Metis, Milkomeda C1 (Cardano), Moonbeam, Moonriver, Optimism, Polygon and RSK. Projects building on these chains can expect to be able to enjoy API3 services earlier, yet we’re planning to address the rest of our backlog rapidly.

One of the biggest technical news of this month was the announcement of the ChainAPI beta access. After a lot of development and closed testing, ChainAPI is finally ready to meet its first users. At this stage, ChainAPI helps the user create and manage API–Airnode integrations, and deploy Airnodes that will serve these integrations. If you’re planning to run an Airnode, I heavily recommended you to apply to beta access.

I don’t want to dilute these three big news with filler, so I’ll keep this one short. Let me end by plugging an article I’ve published recently: Commercial building blocks, which is essentially a personal time-investment thesis, as in why I find API3 worth working on above everything else.

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