This is the 2nd revision of the draft proposal by the RARI Foundation, addressing community feedback.
The Rari Foundation is submitting a proposal to jumpstart the growth in the Arbitrum NFT ecosystem. The proposal involves integrating Arbitrum One with the open-source Rarible Protocol, which is an indexer, order book, and SDK powering NFT-based applications, which, once integrated, can be freely and easily used by the Artbitrum builders.
The Arbitrum ecosystem is hard for independent developers to build NFT-based applications due to a lack of easy-to-use tooling and infrastructure. Without this support, the developer community will opt for other chains with more robust support for building.
Optimism vs. Arbitrum NFT stats as of July 27, 2023, indicate Arbitrum is not the first choice for the creation of NFT assets or contracts. Source NFT Scan.


The open-source Rarible Protocol is focused explicitly on the NFT use case and will enable builders to develop their next dapps choosing Arbitrum, resulting in bringing in new Arbitrum users and sequencer revenue.
The Rarible Protocol is a trusted choice as it's community governed, has an easy-to-use API, a comprehensive SDK, and is committed to expanding its capabilities to power innovative NFT use cases. Furthermore, the Protocol is used by Rarible.com NFT marketplace, whose brand and community can be leveraged in raising awareness about Arbitrum venturing deeper into NFT tooling. Such signaling to the market will show that the Arbitrum community is serious about growing its ecosystem and flourishing NFTs. Rarible and the Rari Foundation will promote the integration in a cross-marketing push to ensure the NFT and crypto community knows that Arbitrum is serious about NFT growth. This support will consist of (and shall not be limited to):
This proposal is being submitted outside of the pending grants framework in order to implement the integration asap, as waiting for the grants framework would result in significant implementation delays. As such, the Arbitrum DAO has an opportunity to express its willingness to incentivize ecosystem growth via strategic partnerships.
The proposed AIP aligns with the Arbitrum community's mission and guiding values by enhancing the utility, scalability, and inclusivity of the Arbitrum network. The Rarible Protocol, a decentralized toolset for NFT applications, is open-source and free, mirroring Arbitrum's commitment to technical inclusivity and neutrality.
By integrating Arbitrum One into the Rarible Protocol, we empower developers to create more complex and innovative applications on Arbitrum. This integration increases accessibility to real-time and historical Arbitrum blockchain data, aligning closely with Arbitrum's commitment to user-centricity and technical inclusivity.
The Rari Foundation: The legal entity for the Rari DAO community that is in possession of $RARI Treasury and on the path of possession of the Rarible Protocol
Rarible Inc.: A leading NFT marketplace that allows users to mint, buy, and sell NFTs. One of the applications using the Rarible Protocol.
Rarible Protocol: Open-source, free-to-use, community-governed Protocol (which includes an SDK, indexer, and order book) for the creation, transaction, and distribution of NFTs.
Rarible SDK: A part of the Rarible Protocol that provides a set of tools for developers to interact with multiple blockchains
A few notes on the Rarible Protocol:
It is an open-source, EVM-based SDK and multichain indexer that currently powers 4,000+ NFT marketplaces (including Rarible.com), and a series of non-marketplace-based applications (like wallets and NFT analytics services - see more use cases here).
Designed as a set of building blocks, the Rarible protocol empowers the creation of fully customized NFT experiences of any level and complexity. ️
API access is lightning-fast, unified, and comprehensive. You gain seamless access to NFT Items, Collections, Activities, and NFT Metadata across multiple blockchains, including ETH, POL, IMX, FLOW, and TEZ, to name a few —all consolidated within a single endpoint.
The Protocol's indexer is the fastest on the market. It retrieves blockchain data through fast APIs, eliminating the need for your own indexer and reducing costs associated with maintaining Blockchain Nodes.
User-friendly SDK allows you to connect wallets seamlessly, mint NFTs, put them up for sale, purchase NFTs, showcase collections, and so much more. The Protocol is the feature-rich product on the market (you can do anything NFT related on our Protocol).
Comprehensive Marketplace Support: Our platform offers unrivaled support for various marketplaces, providing access to aggregated order books from major platforms like OS, LR, X2Y2, Sudoswap, and Tezos, so you can ensure your users have access to the most competitive listings in the market.
Cutting-Edge NFT API Integration: We pride ourselves on providing the best NFT API support, seamlessly integrating with popular communication tools such as Discord, Zendesk, VIP support, Slack, and TG.
Powerful Analytics Capabilities: Our platform boasts best-in-class analytics tools, including OLAP statistics and floor price analysis, empowering users with valuable insights into market trends and performance.
Unmatched Reliability: We maintain the highest level of reliability, ensuring a remarkable 99.99% uptime for our Protocol, making us the most dependable choice in the market.
Below is a detailed breakdown of how the integration will take place and the platforms and technologies that will be used.
The Rarible Protocol is a decentralized toolset that allows developers to build NFT applications. It includes smart contracts, an indexer, an SDK, and APIs. The integration of Arbitrum One into the Rarible Protocol will extend these capabilities to the Arbitrum ecosystem, enhancing its utility and inclusivity.
The first key milestone will be integrating Arbitrum into the Rarible Protocol, which will set the foundation for future milestones involving building NFT applications on Arbitrum.
Tasks: Integration of Arbitrum One chain into Rarible Protocol
The tentative timeline consists of 7 weeks, 5 of which are the integration phase. If the proposal is approved by early September 2023, the project implementation can be executed in early Q4 2023.

As the integration of the Rarible Protocol and Arbitrum will benefit both ecosystems, we are offering to split the Rarible Protocol integration costs between our two parties with an equal share.
Integration of Arbitrum One into the Rarible Protocol
Duration: 5 Weeks
Costs: 200,000 $ (Artibtrum portion = 100,000 $)
Payment terms:
The amount is payable in USDC or ETH.
Note that the Rari Foundation will absorb costs related to the service and maintenance of the Protocol upkeep after the integration implementation.
This is the 2nd revision of the draft proposal by the RARI Foundation, addressing community feedback.
The Rari Foundation is submitting a proposal to jumpstart the growth in the Arbitrum NFT ecosystem. The proposal involves integrating Arbitrum One with the open-source Rarible Protocol, which is an indexer, order book, and SDK powering NFT-based applications, which, once integrated, can be freely and easily used by the Artbitrum builders.
The Arbitrum ecosystem is hard for independent developers to build NFT-based applications due to a lack of easy-to-use tooling and infrastructure. Without this support, the developer community will opt for other chains with more robust support for building.
Optimism vs. Arbitrum NFT stats as of July 27, 2023, indicate Arbitrum is not the first choice for the creation of NFT assets or contracts. Source NFT Scan.


The open-source Rarible Protocol is focused explicitly on the NFT use case and will enable builders to develop their next dapps choosing Arbitrum, resulting in bringing in new Arbitrum users and sequencer revenue.
The Rarible Protocol is a trusted choice as it's community governed, has an easy-to-use API, a comprehensive SDK, and is committed to expanding its capabilities to power innovative NFT use cases. Furthermore, the Protocol is used by Rarible.com NFT marketplace, whose brand and community can be leveraged in raising awareness about Arbitrum venturing deeper into NFT tooling. Such signaling to the market will show that the Arbitrum community is serious about growing its ecosystem and flourishing NFTs. Rarible and the Rari Foundation will promote the integration in a cross-marketing push to ensure the NFT and crypto community knows that Arbitrum is serious about NFT growth. This support will consist of (and shall not be limited to):
This proposal is being submitted outside of the pending grants framework in order to implement the integration asap, as waiting for the grants framework would result in significant implementation delays. As such, the Arbitrum DAO has an opportunity to express its willingness to incentivize ecosystem growth via strategic partnerships.
The proposed AIP aligns with the Arbitrum community's mission and guiding values by enhancing the utility, scalability, and inclusivity of the Arbitrum network. The Rarible Protocol, a decentralized toolset for NFT applications, is open-source and free, mirroring Arbitrum's commitment to technical inclusivity and neutrality.
By integrating Arbitrum One into the Rarible Protocol, we empower developers to create more complex and innovative applications on Arbitrum. This integration increases accessibility to real-time and historical Arbitrum blockchain data, aligning closely with Arbitrum's commitment to user-centricity and technical inclusivity.
The Rari Foundation: The legal entity for the Rari DAO community that is in possession of $RARI Treasury and on the path of possession of the Rarible Protocol
Rarible Inc.: A leading NFT marketplace that allows users to mint, buy, and sell NFTs. One of the applications using the Rarible Protocol.
Rarible Protocol: Open-source, free-to-use, community-governed Protocol (which includes an SDK, indexer, and order book) for the creation, transaction, and distribution of NFTs.
Rarible SDK: A part of the Rarible Protocol that provides a set of tools for developers to interact with multiple blockchains
A few notes on the Rarible Protocol:
It is an open-source, EVM-based SDK and multichain indexer that currently powers 4,000+ NFT marketplaces (including Rarible.com), and a series of non-marketplace-based applications (like wallets and NFT analytics services - see more use cases here).
Designed as a set of building blocks, the Rarible protocol empowers the creation of fully customized NFT experiences of any level and complexity. ️
API access is lightning-fast, unified, and comprehensive. You gain seamless access to NFT Items, Collections, Activities, and NFT Metadata across multiple blockchains, including ETH, POL, IMX, FLOW, and TEZ, to name a few —all consolidated within a single endpoint.
The Protocol's indexer is the fastest on the market. It retrieves blockchain data through fast APIs, eliminating the need for your own indexer and reducing costs associated with maintaining Blockchain Nodes.
User-friendly SDK allows you to connect wallets seamlessly, mint NFTs, put them up for sale, purchase NFTs, showcase collections, and so much more. The Protocol is the feature-rich product on the market (you can do anything NFT related on our Protocol).
Comprehensive Marketplace Support: Our platform offers unrivaled support for various marketplaces, providing access to aggregated order books from major platforms like OS, LR, X2Y2, Sudoswap, and Tezos, so you can ensure your users have access to the most competitive listings in the market.
Cutting-Edge NFT API Integration: We pride ourselves on providing the best NFT API support, seamlessly integrating with popular communication tools such as Discord, Zendesk, VIP support, Slack, and TG.
Powerful Analytics Capabilities: Our platform boasts best-in-class analytics tools, including OLAP statistics and floor price analysis, empowering users with valuable insights into market trends and performance.
Unmatched Reliability: We maintain the highest level of reliability, ensuring a remarkable 99.99% uptime for our Protocol, making us the most dependable choice in the market.
Below is a detailed breakdown of how the integration will take place and the platforms and technologies that will be used.
The Rarible Protocol is a decentralized toolset that allows developers to build NFT applications. It includes smart contracts, an indexer, an SDK, and APIs. The integration of Arbitrum One into the Rarible Protocol will extend these capabilities to the Arbitrum ecosystem, enhancing its utility and inclusivity.
The first key milestone will be integrating Arbitrum into the Rarible Protocol, which will set the foundation for future milestones involving building NFT applications on Arbitrum.
Tasks: Integration of Arbitrum One chain into Rarible Protocol
The tentative timeline consists of 7 weeks, 5 of which are the integration phase. If the proposal is approved by early September 2023, the project implementation can be executed in early Q4 2023.

As the integration of the Rarible Protocol and Arbitrum will benefit both ecosystems, we are offering to split the Rarible Protocol integration costs between our two parties with an equal share.
Integration of Arbitrum One into the Rarible Protocol
Duration: 5 Weeks
Costs: 200,000 $ (Artibtrum portion = 100,000 $)
Payment terms:
The amount is payable in USDC or ETH.
Note that the Rari Foundation will absorb costs related to the service and maintenance of the Protocol upkeep after the integration implementation.