Recently, I looked into oracle projects and found one called APRO, which is quite interesting. Many newcomers may not know what an oracle does; simply put, blockchains cannot obtain external data (like prices, weather, match results) on their own, and need oracles to 'feed' this information. If the data is wrong, DeFi, games, and NFTs can collapse instantly, so this is particularly crucial.
APRO has a clear goal: to provide accurate, stable, and cost-effective data. After my research, I found it has six highlights:
1. Data push is self-defined, helping you save on Gas fees
Some projects require real-time prices 24/7, so they automatically push (Push mode); others only need to check once during settlement, so they pull when needed (Pull mode). Choose Pull to save on Gas, and choose Push for stronger real-time requirements, without wasting money on real-time data that isn’t needed.
2. AI first reviews, problematic data is blocked directly
Currently, many oracles are just 'megaphones', only transmitting data without verifying its authenticity. APRO directly employs AI for automatic review, and any outrageous price fluctuations, conflicting data sources, or obvious manipulations are all blocked. This is equivalent to adding a security checkpoint to smart contracts, making me feel much more secure.
3. Random numbers can be verified, making game lotteries fairer
On-chain lotteries, blind boxes, and GameFi are most afraid of 'the dealer altering the random number'. APRO's random number generation can be verified after generation, anyone can verify it themselves, and fairness is written into the protocol, making both players and project parties feel at ease.
4. Dual-layer network, not afraid of single point failures
Data first goes through a layer of node collection and AI verification, then enters a second layer for final confirmation and on-chain. If there is a problem at any layer, it won’t collapse entirely, and the cost of attack is much higher, greatly enhancing security.
5. Supports multiple types of data, cross-chain is very convenient
Not only does it feed cryptocurrency prices, but it also supports stocks, real estate prices, sports events, game results... Currently, it has connected to over 40 chains, covering basically all the tracks you can think of, making cross-chain projects particularly worry-free.
6. Save Gas and effort sincerely
A large amount of computation and verification is done off-chain, only the final proof is thrown on-chain, resulting in much lower Gas fees. The documentation is clear, and the SDK is easy to use. I have tried it myself, and I can run a demo in just ten minutes.
Overall, what APRO aims to do is the 'infrastructure' in oracles—just like water, electricity, and coal; you don’t need to generate power or mine yourself, you can connect and use it stably. As more applications go on-chain in the future, this type of oracle, which is both secure and flexible while also cost-effective, has a great opportunity.
