Oracle [retired]

An on-chain oracle is a system that connects blockchain smart contracts with off-chain data sources and computational resources, enabling smart contracts to respond to real-world information.

https://basescan.org/address/0xdd018e361d37a410c68b9a3c73c829f42551e3a6basescan.org

Visit the oracle smart contract

Due to low adoption Brewlabs decided to retire Orcale.

Tip: Oracles are available on Base network only.

About

Brewlabs offers free and premium tier access to oracle data for use across the community. We offer a growing library focusing on mixed on-chain and real world asset price oracles for smart contracts. The oracles are updated every minute with fresh data to highlight its real-time nature. Oracles are not a direct consumer product, but rather an infrastructure tool available for developers to adopt for their own protocols or projects.

What is an example of an Oracle?

Common types of on-chain oracles include:

• Price oracles: Providing asset price data (our library)

• Data oracles: Supplying real-world information like weather, sports results, etc.

• Computation oracles: Performing complex calculations off-chain and providing results

• Identity oracles: Verifying real-world identities

• Event oracles: Reporting when specific real-world events occur

How to use the Brewlabs Oracle?

• Visit the Oracle smart contract getAssetByKeySymbol

• Enter your symbol

  • Example "COIN" and hit query

• Receive the asset string key,

  • Example "0x94d28cfe178ae84130ce540d5dadabd088b301735941a744d121b4926572ece0"

• Enter the asset string into the assetPricesfunction

• Receive price (consider 8 decimal places)

  • Example "COIN = 21255000000" ($212.55 USD)

Supported currencies

Each asset price is aggregated from multiple sources with protection against outliers and manipulation.

All prices are updated every 60 seconds.

Key	Asset	Rate FREE tier	Rate PREMIUM tier
COIN	COINBASE	2 / HR	Unlimited
MSTR	STRATEGY	2 / HR	Unlimited
TESLA	TESLA	2 / HR	Unlimited
NVIDIA	NVIDIA	2 / HR	Unlimited
SNP500	SNP500	2 / HR	Unlimited
BTC	BITCOIN	2 / HR	Unlimited
BREW	BREWLABS	2 / HR	Unlimited
MOONWELL	MOONWELL	2 / HR	Unlimited
AERO	AERO	2 / HR	Unlimited
ETH	ETHEREUM	2 / HR	Unlimited
XAU	GOLD	2 / HR	Unlimited
MORPHO	MORPHO	2 / HR	Unlimited
VIX	VOTATILITY INDEX	2 / HR	Unlimited
QQQ	INVESCO QQQ	2 / HR	Unlimited

Supported networks

• Base

Fees

Free tier

Any wallet can query the Oracle twice per hour.

Premium tier

Deposit $25 in BREW for 30 day access to unlimited oracle queries.

Security

The oracle smart contract has not been externally audited.