Last updated 3 months ago
Cardano lacks robust oracles, limiting dApps and access to vital data. DIA fills this gap, delivering trustless data and unlocking new dApps, use cases, and essential tooling for builders.
DIA is a cross-chain oracle, currently live on 59 blockchain networks. DIA offers transparent, customizable feeds for 2,500+ tokens, 10k+ RWAs, LSTs, and more to power diverse dApp use cases.
This is the total amount allocated to Integration of DIA Price Oracles on Cardano.
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Please provide your proposal title
Integration of DIA Price Oracles on Cardano
Enter the amount of funding you are requesting in ADA
94500
Please specify how many months you expect your project to last
2
Please indicate if your proposal has been auto-translated
No
Original Language
en
What is the problem you want to solve?
Cardano lacks robust oracles, limiting dApps and access to vital data. DIA fills this gap, delivering trustless data and unlocking new dApps, use cases, and essential tooling for builders.
Supporting links
Does your project have any dependencies on other organizations, technical or otherwise?
No
Describe any dependencies or write 'No dependencies'
No dependencies
Will your project's outputs be fully open source?
Yes
License and Additional Information
DIA’s outputs will fully open source and licensed under GPLv3, with flexibility to release certain components under MIT where beneficial for adoption in the Cardano ecosystem.
Please choose the most relevant theme and tag related to the outcomes of your proposal.
Infrastructure
Describe what makes your idea innovative compared to what has been previously funded (whether by you or others).
Unlike traditional oracles that rely heavily on opaque third-party aggregators, DIA sources data directly from 100+ DEXs and CEXs, ensuring full transparency and first-party verifiability.
This enables 100% verifiability, eliminating trust assumptions and allowing developers to build on oracles they can audit end-to-end.
This first-party approach also allows DIA to support the largest data offering of any oracle, giving Cardano developers access to the most robust data library in Web3. In addition, DIA provides customizable pull & push oracles tailored to each dApp's use case.
Describe what your prototype or MVP will demonstrate, and where it can be accessed.
The MVP will demonstrate DIA’s oracle integration on Cardano by deploying a live oracle smart contract which includes 10 asset price feeds. The prototype will show end-to-end data flow: raw trade data aggregated from multiple exchanges, delivered on-chain via DIA’s transparent architecture, and consumable by a dApps via smart contract. This will validate feasibility, showcase developer tooling, and prove that Cardano builders can access customizable, trustless data feeds. The MVP will be accessible through Cardano mainnet alongside the provision and access of open GitHub repos.
Describe realistic measures of success, ideally with on-chain metrics.
Measures of success will include the ability for any dApp to integrate and utilize DIA oracles on Cardano, and for any dApp on Cardano to request and receive a custom DIA oracle DIA which is tailored to their individual needs.
Specific dApp integrations which would be strong measures of success are DIA's oracle integration with Djed Stablecoin, Liqwid Finance, Minswap, Obymare, and more.
In terms of on-chain metrics, DIA oracles are expected to achieve >14k transactions per month, and increase dApp TVL by >$10m USD due to additional asset types being supported within dApps.
Please describe your proposed solution and how it addresses the problem
Solution
The proposed solution is to integrate DIA’s decentralized oracle infrastructure into Cardano, filling a critical gap that currently limits the ecosystem’s ability to access reliable, real-world data. By doing so, Cardano dApps will gain access to transparent, customizable, and secure oracle feeds that are already trusted by 130+ dApps across 59+ blockchain networks.
DIA Price Oracles
DIA is a cross-chain oracle provider focused on data transparency, customization, and accessibility. Unlike traditional oracles that rely on opaque third-party data aggregators, DIA sources raw trade data directly from 100+ centralized and decentralized exchanges. This first-party sourcing approach ensures 100% transparency at the exchange level, eliminating black boxes and providing verifiability for developers and users alike.
With this architecture, DIA delivers:
How DIA Works
DIA’s modular architecture consists of three core layers:
This system is further supported by a robust monitoring framework, ensuring data accuracy, uptime, and resilience through node redundancy.
[For a breakdown of each component, please visit: https://www.diadata.org/docs/reference/architecture]
Problems Solved for Cardano
Summary
DIA oracles will be deployed on Cardano via smart contract. The smart contract is a key/value store and contains two values per asset, the timestamp of the last update and the value of the asset price. The asset price is stored with 18 decimals by default.
The integration of DIA oracles with Cardano will enhance data accessibility, transparency, customizability, and implement support for a wide range of assets in smart Cardano contracts. The outcome will empower developers on Cardano to construct more reliable and flexible decentralized applications, all of which depend on accurate and verifiable oracle pricing.
This integration will be beneficial to the entire Cardano community, including developers and users, by providing them with a robust foundation for building, executing, and benefiting from blockchain applications on Cardano.
Please define the positive impact your project will have on the wider Cardano community
Generally speaking, the presence of multiple oracles is critical for bolstering security and maintaining the long-term sustainability of an ecosystem. By incorporating multiple oracles, developers can access diverse data sources and leverage various tooling options, enhancing their decision-making capabilities and reducing the risk of data manipulation or inaccuracies across the entire Cardano smart contract ecosystem.
This redundancy not only fortifies the ecosystem against potential threats but also fosters an environment of trust and transparency, ensuring the consistent and dependable operation of the network over time.
In addition to this general outlook on the benefits of having multiple oracle providers in the Cardano smart contract ecosystem, the below highlights the specific ways DIA Oracles stand apart, and will provide value to the ecosystem:
1. Customizable oracle feeds tailored to each dApps needs:
Setting itself apart, DIA offers bespoke oracles crafted to meet the precise requirements of each individual dApp. This adaptability allows optimization of the oracle deployment, tailoring data sources, price methodologies, updating frequencies, and more to better support varied dApp functionalities.
For example: In a perpetual trading protocol, the need for high-frequency updates (e.g., every 1 second) is critical and often applied for prominent blue-chip assets. However, in a lending-borrowing protocol, where a broader range of assets may be supported, a lower update frequency is often preferable. This is particularly important for assets with lower trading volumes and liquidity, where a high-frequency update can pose risks, allowing for potential price manipulation within short timeframes. To mitigate this risk, the DIA oracles can be optimized by extending the trade collection window and adjusting the update frequency. For instance, increasing the update frequency to every 2 minutes enables the inclusion of more trades into each reported price, creating a robust price feed that aligns with the specific requirements of the lending protocol.
In this example, DIA's ability to adjust the update frequencies and trade collection window ensures greater resilience and accuracy in data provision, particularly when dealing with lower volume assets or varying market conditions. This exemplifies how different oracle parameters can be optimized for different use cases and assets.
2. First-Party Data Sourcing:
Additionally, different from other oracles both within and outside of the Cardano ecosystem, DIA’s architecture consists of first-party data sourcing, directly from over 100+ high confidence DEX and CEXs. This will add value to the Cardano ecosystem in multiple ways, by first adding a significant increase to the number of sources and assets supported by oracles in the Cardano ecosystem.
As a benefit of this first-party dats sourcing approach, DIA oracles provide 100% transparency regarding each and every individual source that is considered in generating a price feed, and developers can select and customize these sources. This proves to be significant, and will become increasingly significant as more cross-chain focused dApps decide to build on Cardano.
For example: In a cross-chain lending-borrowing protocol or collateralized debt position (CDP) protocol, collateral may exist on other chains, and thus, DIA’s source selection capabilities uniquely enable developers and users to value assets and collateral as they exist on their respective chains.
Cardano-Native DEX scraping:
The ultimate goal for the DIA integration is to maximize Cardano smart contract functionality and innovation by fully integrating all of the relevant components of DIA’s product suite onto Cardano. Perhaps the most significant component of this integration will encompass the inclusion of Cardano-Native DEX’s into the sources which DIA supports. This capability, which is unique to DIA due to its novel first-party data sourcing architecture, will ultimately prove to add much value to the entire Cardano ecosystem, as DIA will be the only cross-chain oracle provider that can support Cardano-native assets.
What’s more is that DIA will not only support these assets inside the Cardano ecosystem, but will also be able to provide price feeds for these assets across the 59 (and counting) other chains that DIA is actively integrated with.
Additional Unique Benefits of the DIA Integration:
The positive impact that the DIA oracle integration will have on the Cardano community will be both developer facing and user facing. As a result of DIA's integration, Cardano developers will be able to construct more reliable and flexible decentralized applications, all of which depend on accurate and verifiable oracle pricing. As it relates to users and members of the community, they will experience a significant improvement in the products which are available to them. Not only will they gain access to a stress-tested, proven oracle architecture which has been in production since 2020 with no exploits, but they will find there is more capital utility for the assets they hold on Cardano, via DIA's oracle support for protocols across the ecosystem. Assets which they previously held but were unable to partake in DeFi activity with them due to lack of oracle support, will now have DIA support and enable users to lend/borrow, trade, and otherwise engage in DeFi. This will be beneficial for the community looking for more yield, as well as for the whole Cardano ecosystem at large as it will enable protocols to attract more TVL, volume, and grow as a result.
What is your capability to deliver your project with high levels of trust and accountability? How do you intend to validate if your approach is feasible?
Capabilities & Feasibility
DIA was founded in 2018, and has a proven track record of deploying decentralized oracle infrastructure across diverse blockchain environments since its product launch in 2020. The DIA team’s core mission has been to expand cross-chain oracle access and empower developers to build secure, data-driven dApps. Today, DIA secures over $400m TVL across 59 Layer 1 and Layer 2 blockchains, serving as a critical data layer for some of the most innovative ecosystems and applications in Web3.
Proven Multi-Chain Experience
DIA oracles are deployed across leading chains including Ethereum, Arbitrum, Polygon, Optimism, Near, Avalanche, Base, BNB Chain, and many more. Importantly, DIA is not limited to EVM-compatible chains and has a proven track record of successful deployments on non-EVM environments (such as Stacks, Soroban Network, Near, Solana, Alephium, Aleph Zero, Astar-WASM, Vara, and more) demonstrating the ability to adapt and successfully implement DIA oracles to networks with different technical architectures.
Team Expertise
The DIA team combines deep expertise in smart contract development, blockchain infrastructure, and data engineering. Since 2018, DIA has built robust oracle solutions including:
Trust, Accountability & Transparency
DIA’s architecture is fully open-source and 100% transparent at the data source level. All data is aggregated directly from first-party exchanges (DEXs and CEXs) using open scrapers and transparent methodologies, ensuring developers and users can audit every feed. This commitment to verifiability and openness ensures the highest levels of trust and accountability.
Feasibility & Validation
The feasibility of this integration is underpinned by DIA's extensive deployment history. To validate the success of the Cardano integration, DIA will:
Milestone Title
Port DIA Oracle Smart Contract to Plutus
Milestone Outputs
The DIA oracle smart contract will be ported to Plutus and adapted to Cardano’s UTxO model. Deliverables include a compiled contract, test coverage with unit/integration tests, deployment scripts, and documentation for Cardano developers.
Acceptance Criteria
A Plutus-based DIA oracle contract is deployed on Cardano mainnet and verified to compile, deploy, and function correctly. Automated tests demonstrate broad code coverage and show the oracle can process and return external data on-chain.
Evidence of Completion
A public GitHub repository containing the smart contract source code, unit and integration tests with coverage results, deployment scripts, and verified Cardano mainnet transaction hashes showing successful deployment and execution
Delivery Month
1
Cost
23250
Progress
30 %
Milestone Title
Implement Data Feeder and Documentation
Milestone Outputs
A Cardano-specific data feeder will be developed to deliver DIA’s aggregated trade data into Cardano mainnet oracle contracts. Outputs include feeder scripts, automated test coverage, QA review logs, and developer documentation with integration examples.
Acceptance Criteria
The feeder successfully pushes price feeds to Cardano mainnet contracts with reproducible performance for any custom oracle requests. Functionality is validated through automated test cases, QA review, and confirmed transactions recorded on the Cardano mainnet.
Evidence of Completion
GitHub repository containing feeder source code, automated test scripts, and technical documentation. Verified Cardano mainnet transaction logs will be provided as evidence of the feeder successfully delivering live price data to the oracle.
Delivery Month
2
Cost
23750
Progress
60 %
Milestone Title
Implement Monitoring Library for DIA Oracles on Cardano
Milestone Outputs
A monitoring and alerting system will be delivered to track DIA oracles once deployed on Cardano mainnet. Outputs include real-time dashboards, anomaly detection, uptime and accuracy reports, automated alerts, and documentation for Cardano developers.
Acceptance Criteria
The monitoring system provides real-time visibility of DIA oracle feeds operating on Cardano mainnet. Anomalies in uptime, accuracy, or data freshness trigger automatic alerts. Functionality is validated by QA review and live on-chain performance.
Evidence of Completion
GitHub repository with monitoring library source code, configuration examples, and developer documentation. Screenshots of dashboards and live mainnet logs showing feed health checks will confirm functionality.
Delivery Month
2
Cost
23750
Progress
90 %
Milestone Title
End-to-End Integration and Deployment on Cardano Mainnet
Milestone Outputs
A complete end-to-end integration of DIA oracles on Cardano mainnet will be delivered. Outputs include Plutus-based smart contracts, feeders, monitoring stack, deployment scripts, sample live feeds, contract addresses, and supporting developer documentation
Acceptance Criteria
End-to-end deployment of DIA oracles on Cardano must demonstrate stable operation with 99.99% uptime and accuracy. Functional verification includes successful operation of smart contracts, data feeders, and monitoring tools working together.
Evidence of Completion
Mainnet contract addresses, feeder logs, and end-to-end test results will be shared publicly. A GitHub repository with finalized smart contract code, feeder scripts, and reproducible deployment instructions for custom oracle requests will confirm completion.
Delivery Month
2
Cost
23750
Progress
100 %
Please provide a cost breakdown of the proposed work and resources
Milestone 1:
Milestone 2:
Milestone 3:
Milestone 4:
Ongoing Maintenance: Following mainnet deployment, DIA will continue to maintain and monitor the oracle infrastructure in perpetuity. This includes covering ongoing operational and monitoring costs to ensure data reliability, security, and continuous availability for Cardano dApps, as well as the support and deployment of custom oracles for any dApp on Cardano. These recurring expenses are absorbed by DIA as part of its long-term commitment to the Cardano ecosystem.
How does the cost of the project represent value for the Cardano ecosystem?
DIA’s integration and provision of oracles on Cardano will immediately grant developers access to over 5,000 price feeds and assets that are currently unavailable on the network. This unlocks new opportunities for DeFi innovation, enabling a wider range of dApps, supporting more assets, and driving overall growth within the Cardano ecosystem.
By expanding the breadth of available data, this integration will increase user engagement and attract more TVL, as users gain access to DeFi activities across a broader set of assets than ever before on Cardano.
In the long term, providing a stress-tested, proven, and robust oracle infrastructure is critical for Cardano’s sustainability. DIA has demonstrated its ability to scale across 59+ blockchain networks, powering 150+ dApps with $400m+ in secured TVL over the past 5 years. Bringing this same infrastructure to Cardano ensures the reliability and security that developers, users, and capital require as the ecosystem continues to expand.
Importantly, while this proposal covers only the integration effort, DIA commits to ongoing maintenance and monitoring of these oracles in perpetuity, at no further cost to the Cardano community. This ensures data integrity and availability for the long run.
On behalf of DIA, we are committed to Cardano for the long term, and very much keen to play a supporting role in the growth of the ecosystem for all years to come.
Terms and Conditions:
Yes
DIA Team Involved in Integration Process:
Product & Tech:
BD:
Marketing: