# List of Oracle resources **URL:** \ **Category:** General\ **Created:** [April 28, 2021, 6:27am UTC](https://forum.openzeppelin.com/t/list-of-oracle-resources/5998 "2021-04-28T06:27:58Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![elopio](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/elopio/32/4037_2.png) [@elopio](https://forum.openzeppelin.com/u/elopio)\ **Post date:** [April 28, 2021, 6:27am UTC](https://forum.openzeppelin.com/t/list-of-oracle-resources/5998/1 "2021-04-28T06:27:58Z")
## Introduction > **[Oracles | ethereum.org](https://ethereum.org/developers/docs/oracles/)** > > Oracles provide Ethereum smart contracts with access to real-world data, unlocking more use-cases and greater value for users. - [What is a blockchain Oracle? in StackExchage](https://ethereum.stackexchange.com/questions/85178/what-is-a-blockchain-oracle) - [Oracles in ethhub](https://docs.ethhub.io/built-on-ethereum/oracles/what-are-oracles/) ## Oracles in Ethereum ⚠ _This is not an endorsement of any kind_. You should assess the quality of these projects and extensively test your integrations with them before using them in production. - [Chainlink](https://forum.openzeppelin.com/t/chainlink-oracle-in-progress/7800) - [Band Protocol](https://bandprotocol.com/) - [Provable](https://provable.xyz/) - [Reality.eth](https://reality.eth.link/) - [Witnet](https://witnet.io/) - [Tellor](https://www.tellor.io/) ### Price Feeds - [Chainlink](https://docs.chain.link/docs/get-the-latest-price/) - [Compound](https://forum.openzeppelin.com/t/compound-price-feed-in-progress/9186) - [Maker](https://developer.makerdao.com/feeds/) - [Uniswap](https://uniswap.org/docs/v2/core-concepts/oracles/) ### Prediction Markets - [Augur](https://augur.net/) - [Omen](https://omen.eth.link/) - [Polymarket](https://polymarket.com/) - [Stox](https://www.stox.com/) ## Articles - [february, 2021] [Prediction Markets: Tales from the Election](https://vitalik.ca/general/2021/02/18/election.html), by Vitalik Buterin. - [january, 2019] [Decentralised Oracles: a comprehensive overview](https://medium.com/fabric-ventures/decentralised-oracles-a-comprehensive-overview-d3168b9a8841), by Julien Thevenard. - [september, 2018] [The Oracle Problem](https://victorhogrefe.medium.com/the-oracle-problem-5611bed763ba), by Victor Hogrefe. - [january, 2018] [On decentralization of blockchain oracles](https://medium.com/pnetwork/on-decentralization-of-blockchain-oracles-94fb78598e79), by pNetwork Team. ## Whitepapers - [2019] [Decentralized Common Knowledge Oracles](https://ledger.pitt.edu/ojs/index.php/ledger/article/view/166), by @Austin-Williams and Jack Peterson | _[annotations](https://hyp.is/go?url=https%3A%2F%2Farxiv.org%2Fpdf%2F1912.01215.pdf&group= __world__ )_ - [2021] [Chainlink Whitepaper V2](https://chain.link/whitepaper) ## Issues - [november, 2020] [DAI Liquidation event](https://www.comp.xyz/t/dai-liquidation-event/642), by [Robert Leshner](https://twitter.com/rleshner) - [september, 2019] [Atomic price manipulation in DDEX and bZx](https://samczsun.com/taking-undercollateralized-loans-for-fun-and-for-profit/), explained by [samczsun](https://samczsun.com/) - [june, 2019] [Synthetix Response to Oracle Incident](https://blog.synthetix.io/response-to-oracle-incident/) * * * _This a wiki post, we can contribute improving it 🙂_ ---
**Author:** ![PatrickAlphaC](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/patrickalphac/32/4556_2.png) [@PatrickAlphaC](https://forum.openzeppelin.com/u/PatrickAlphaC)\ **Post date:** [May 10, 2021, 11:49am UTC](https://forum.openzeppelin.com/t/list-of-oracle-resources/5998/2 "2021-05-10T11:49:02Z")
How can we help this post/thread learn more about oracles? Do we submit suggested edits or something? ---
**Author:** ![Bruno\_Giampietro](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/bruno_giampietro/32/5591_2.png) [@Bruno\_Giampietro](https://forum.openzeppelin.com/u/Bruno_Giampietro)\ **Post date:** [May 10, 2021, 2:47pm UTC](https://forum.openzeppelin.com/t/list-of-oracle-resources/5998/3 "2021-05-10T14:47:28Z")
Hey Patrick! This is a _wiki post_, that means you are free to add new stuff around the same topic… You can to this by clicking on the **Edit** button in the post. ---
**Author:** ![elopio](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/elopio/32/4037_2.png) [@elopio](https://forum.openzeppelin.com/u/elopio)\ **Post date:** [May 10, 2021, 3:05pm UTC](https://forum.openzeppelin.com/t/list-of-oracle-resources/5998/4 "2021-05-10T15:05:22Z")
Yes. Also feel free to use the comments in case of doubt or to share links that might not be the best, but could be helpful anyway. We will be monitoring the post and the thread to make sure that everything fits our code of conduct and plays nicely within the study group. Thanks humans! ---
**Author:** ![Pankaj\_Shukla](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/pankaj_shukla/32/4135_2.png) [@Pankaj\_Shukla](https://forum.openzeppelin.com/u/Pankaj_Shukla)\ **Post date:** [July 9, 2021, 9:47am UTC](https://forum.openzeppelin.com/t/list-of-oracle-resources/5998/5 "2021-07-09T09:47:32Z")
[Razor Network](https://razor.network/) Hi wanted to add Razor Network under “Oracles under Ethereum” ---
**Author:** ![Spuddy](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/spuddy/32/8957_2.png) [@Spuddy](https://forum.openzeppelin.com/u/Spuddy)\ **Post date:** [September 15, 2021, 1:44pm UTC](https://forum.openzeppelin.com/t/list-of-oracle-resources/5998/6 "2021-09-15T13:44:30Z")
Hey thanks for including Tellor! Do you think you could put tellor in the price feeds category also? There are 59 price feeds available on mainnet and on Rinkeby [https://docs.google.com/spreadsheets/d/1BK7Cs0K2W-bRaNpuvzFbVX50CgjXH7k-HKAuuWxTiW8/edit#gid=0](https://docs.google.com/spreadsheets/d/1BK7Cs0K2W-bRaNpuvzFbVX50CgjXH7k-HKAuuWxTiW8/edit#gid=0)