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  • FOR NODE HOSTS
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        • The "Huygen" upgrade guide (v0.6.* to v0.7.*)
        • The "v0.7.0-hotfix" upgrade guide (v0.7.* to v0.8.*)
        • The "Galileo" upgrade guide (v0.8.* to v1.0.*)
        • The "Titan" upgrade guide (v1.0.* to v1.1.0)
        • The "v1.2" upgrade guide (v1.1.* to v1.2.0)
        • The "v1.3" upgrade guide (v1.2.* to v1.3.0)
        • The "v1.4" Pallene upgrade guide (v1.3.* to v1.4.1)
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  • CRONOS CHAIN PROTOCOL
    • Chain ID and Address Format
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    • Genesis
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      • module_bank
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      • List of parameters
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    • Cronos zkEVM
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  • Essential information sources
  • TLDR; what do I need to know if I am considering Cronos for my dapp?
  • FAQs - ecosystem
  • FAQs - technical

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  1. FOR DAPP DEVELOPERS

Founder FAQs

Planning to release a dApp on Cronos? Here is what you need to know.

PreviousKey Principles for Wallet SecurityNextHacker's Getting Started Resources

Last updated 3 months ago

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Essential information sources

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TLDR; what do I need to know if I am considering Cronos for my dapp?

is the leading Ethereum-compatible layer 1 blockchain network built on the Cosmos SDK, supported by Crypto.com and more than 500 app developers and partners. Today, the #CROfam ecosystem represents an addressable user base of more than 80 million people worldwide. Our mission is to make it easy and safe for the next billion crypto users to adopt Web3, with a focus on decentralized applications in the DeFi, NFTs and GameFi verticals.

can help most dapp creators to enhance the visibility of their product in the Cronos user community. However, Cronos Labs is generally not able to promote token or NFT sales. The following support is available to dapp creators:

  • Technical support via and .

  • Amplification of product launches / feature releases on and in the .

  • Participation in .

  • Project listing at and on various partner platforms (Crypto.com Onchain Wallet, Defillama, Dappradar, etc.).

  • Introductions to other dapps, key opinion leaders and project launchpads.

  • and (usually for projects who have already started to achieve initial user traction on Cronos).

  • .

FAQs - ecosystem

How can I get my project featured in the Crypto.com Onchain Wallet in-app browser, once deployed on Cronos?

  • Step 1:

    • The first step is to implement login via the Crypto .com Onchain Wallet’s SDK, using the DeFiWeb3Connector.

  • Step 2:

    • The Crypto.com team may need some time to assess the suitability of your dApp and does not provide updates regarding their internal decision making process until there is a positive decision (if any). They may revisit their decisions occasionally, for example a token sale page may not be featured in the Dapp ranking but it may be featured later, once it includes a Dapp with real utility for end-users.

How can I get my project featured in Trust Wallet, once deployed on Cronos?

How can I get my NFT collection allow-listed on the relevant NFT platforms?

  • Crypto.com NFT platform

    • Crypto.com NFT platform is a custodial platform that supports Cronos and multiple other chains.

  • Minted NFT platform

    • Minted is a self-custodial NFT platform on Cronos chain and on Ethereum.

    • New launch & secondary trading: the Cronos Labs team can put you in touch with the Minted team via Telegram. Please create a telegram group [Your project] <> Minted and send the link to your Cronos Labs contact.

  • Ebisu’s Bay

    • Ebisu’s Bay is a self-custodial NFT platform on Cronos chain and on Ethereum.

    • New launch & secondary trading: the Cronos Labs team can put you in touch with the Minted team via Telegram. Please send your Telegram handle to your Cronos Labs contact.

Are there other ways to advertise my project, products or services to other app developers, investors or partners of the Cronos ecosystem?

How can I apply for Cronos ecosystem grant support?

How can I apply for the Cronos accelerator program?

  • The Cronos Accelerator Program supports early-stage teams who are working full-time on a dApp project and have an prototype or MVP product.

How can I become a node operator?

Can Cronos help with my token sale or NFT primary sale?

  • As an open-source protocol and decentralized network, Cronos will not be able endorse token sales.

  • You can work with some of the the launchpads and media organizations who have build significant audiences within the Cronos ecosystem, such as:

    • Token launchpads: VVS finance, others.

    • NFT launchpads: Minted, Ebisu’s Bay, others.

    • Media organizations: CronosNews, Cronicle, others.

  • Do not hesitate to contact the Cronos Labs team to obtain contact details.

FAQs - technical

Where can I find developer quick start resources?

  • Check out this repository of resources published for Cronos hackathons: Hacker's Getting Started Resources

Are there best practices and security standards that apply to Dapps on Cronos?

I need a commercial node provider because my dApp exceeds the rate limits of the free Cronos JSON-RPC endpoints. Who offers this ?

  • See here: Free and commercial RPC endpoints

Where can I find a list of available developer tools and integrations?

  • We have prepared one for you! See here: Dev Tools & Integrations

Where can ask technical questions to integrate with Cronos chain?

How can I connect my Dapp to commonly used crypto wallets like MetaMask, Crypto .com Onchain Wallet, or Trust Wallet?

How can I get my project featured at ?

Visit where you can add your project to the list of Cronos ecosystem projects (click the Submit button).

See on how to implement wallet connections. The code sample uses , a wallet connection library used by many Cronos dapps.

For more details, you can refer to this repository for documentation and usage:

You cannot proceed to Step 2 until you have checked that your dApp offers a functional connection to the Crypto.com Onchain Wallet’s Browser Extension in a desktop browser ().

Complete to apply to get the URL of your dApp featured in the DeFi Wallet’s dApp ranking tab.

Decision criteria include the transparency and security of the dApp, and the quality of the user experience. Therefore, in order to increase your chances of being approved, please ensure that your user-facing website includes a link to your docs and to your Github repository, and that the docs include links to the verified smart contracts on . You can refer to on how to deploy your smart contracts to Cronos and verify them on Cronoscan.

Note: There is currently no process in place to request a token integration with the Crypto.com Onchain Wallet. Token integrations happen once in a while. Meanwhile, your users can import your token manually. See this for more information.

supports the Cronos mainnet from within the in-app Dapp browser (via the injected Web3 provider) and also via Wallet Connect.

You can contact the Trust Wallet team to have your Dapp and/or token featured in the Trust Wallet’s mobile Dapp browser. Refer to the for more details.

New launch: if you want to create and sell a new NFT collection on the custodial Crypto.com / NFT platform, please contact Crypto.com directly (see this ).

Secondary trading: if you already have a NFT collection live on the Cronos chain and would like to make it allow-listed on the custodial Crypto.com / NFT platform so that the NFT owners can deposit and trade the NFTs at Crypto.com / NFT, please contact Cronos Labs for support () and we will share with you the contractual documents and proof of ownership requirements that are required by Crypto.com.

Yes! Please email or notify the Cronos Labs team by Telegram if you have major product launch announcements, have reached key milestones (number of daily transactions, number of users, trading volume) or have published interesting pieces of content.

Contact and on to get the word out about your project.

Consider listing your project on , and on the store.

Cronos Labs can facilitate access to the and the program.

Please refer to for details.

Anyone can run their own Cronos node: see for instructions.

However, the Cronos network is not currently adding new validators (except on an exceptional basis). The Cronos Labs team will make public announcements when validator applications are open again. Feel free to email to register your interest.

Check out the Cronos documentation:

The Cronos team strongly encourages all development teams to follow the best practices summarized at this . You can find more information at this too.

It will be difficult for the Cronos Labs team to engage meaningfully with teams who do not publish their code and do not have their smart contracts verified on

You can contact the community support on our , in the #cronos-mainnet-beta channel.

Or, if the Cronos Labs team already has a joint Telegram group with your team, feel free to reach out to the team in that group. You can also email .

See this .

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