Multi-source Oracle Aggregation

[Proposal setup] Proposal title

Please provide your proposal title

Multi-source Oracle Aggregation

[Proposal Summary] Budget Information

Enter the amount of funding you are requesting in ADA

100000

[Proposal Summary] Time

Please specify how many months you expect your project to last

8

[Proposal Summary] Translation Information

Please indicate if your proposal has been auto-translated

No

Original Language

en

[Proposal Summary] Problem Statement

What is the problem you want to solve?

Cardano has many price sources, but no unified feed. This causes DeFi apps to show inconsistent token prices, leading to errors in interest, liquidation, or user display

[Proposal Summary] Project Dependencies

Does your project have any dependencies on other organizations, technical or otherwise?

No

Describe any dependencies or write 'No dependencies'

No dependencise

[Proposal Summary] Project Open Source

Will your project's outputs be fully open source?

Yes

License and Additional Information

We will release all project outputs under the Apache 2.0 license.

[Theme Selection] Theme

Please choose the most relevant theme and tag related to the outcomes of your proposal

Developer Tools

[Campaign Category] Category Questions

Mention your open source license and describe your open source license rationale.

We will release all project outputs under the Apache 2.0 license.

This license is OSI-approved, widely adopted, and allows developers to freely use, modify, and distribute the code while ensuring attribution and license preservation.

How do you make sure your source code is accessible to the public from project start, and people are informed?

All code will be published from day one in a public GitHub repository.

Each milestone will be documented and announced through Catalyst reports and shared in Cardano developer.

This ensures full transparency and easy access for contributors and the community.

How will you provide high quality documentation?

Documentation will be maintained alongside the source code in the repository.

Technical design documents describing system architecture and data flow.

Documentation will be kept updated across milestones.

[Your Project and Solution] Solution

Please describe your proposed solution and how it addresses the problem

Cardano has many Oracle Sources like Orcfax, Chaili3, Liqwid, Indigo, and DEX pools. But there is no unified system to combine these prices. Each dApp chooses its own source, leading to inconsistent token prices, unfair liquidations, and inaccurate interest calculations.

Approach:

• Build a Multi-Source Oracle Aggregation system that collects token prices from multiple Oracle Sources.

• Each token price can be calculated through multiple Oracle price paths (e.g., ADA → MIN → DJED).

• If any Oracle price path for a token pair differs more than 5% from the average, we exclude that pair from the final price feed.

• Publish the final aggregated prices on-chain

Major Features:

• Aggregate prices from Orcfax, Liqwid, Indigo, DJED, and DEXs like Minswap.

• Open-source smart contracts and pricing logic.

• New Oracle Sources and price paths can be added easily

• Built-in safeguard: If any path gives abnormal data, it is automatically excluded

Audience

This project serves DeFi developers, lending protocols, and Cardano users who need reliable token prices. It helps projects build safer lending, collateral, and liquidation systems. Users benefit from fairer, more transparent DeFi experiences.

[Your Project and Solution] Impact

Please define the positive impact your project will have on the wider Cardano community

Deliverables to Impact outputs:

• Provide DeFi developers and projects on Cardano with accurate, real-time token prices aggregated from multiple Oracle Sources.

• Lower technical barriers for small and medium-sized projects by giving them a ready-to-use price feed.

• More DeFi protocols and encourage existing ones to migrate to a unified, secure price feed.

• Build trust in Cardano DeFi through open-source smart contracts and transparent price calculation.

Impact of the project – Acceptance criteria (quantitative):

• Number of Oracle Sources successfully integrated.

• Number of token pairs and ADA pools supported at Mainnet release.

• Public availability of UI, and technical documentation.

[Your Project and Solution] Capabilities & Feasibility

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?

Team Capability

• Our team has deep expertise in Cardano DeFi development, with proven experience across
• Smart Contracts Development: Extensive knowledge in Plutus and Aiken, with multiple deployments on testnet and mainnet.
• Off-chain Infrastructure: Strong skills in building reliable off-chain code, indexers, and backend services to support on-chain logic.
• Oracle & Data Integration: Practical experience integrating external price feeds and building aggregation logic for accuracy and resilience.

We have expertise in smart contracts, off-chain infrastructure, and API services.

Technical Feasibility:

• The Multi-Source Oracle Aggregation will be built using established Cardano development practices. The system will:
• Aggregate token prices from Multi-Source Oracle: Orcfax, Liqwid, Indigo, DEX pools as MinSwap, Splash
• Support multiple Oracle price paths and automatic filtering of unreliable ones
• Publish prices on-chain, easy integration

[Milestones] Project Milestones

Milestone Title

Integrate first Oracle Sources: Orcfax, Liqwid, Indigo, Chali3

Milestone Outputs

• System architecture design finalized for Orcfax, Liqwid, Indigo, and Chali3.
• Build backend aggregator and database for price collection.
• Integrate first Oracle Sources: Orcfax, Liqwid, Indigo, Chali3.

Acceptance Criteria

• System architecture and technical design must be finalized and documented.
• Backend aggregator for price collection must be implemented.
• Integration of first Oracle Sources (Orcfax, Liqwid, Indigo, Chali3) must be completed.

Evidence of Completion

Technical design document: Detailed system architecture, data flow, and aggregation logic (github link).

Delivery Month

2

Cost

22000

Progress

20 %

Milestone Title

MinSwap integration, Mockup UI design

Milestone Outputs

• Public smart contracts deployed on testnet include Orcfax, Liqwid, Indigo, Chali3, and MinSwap DEX pools with verified functionalities (GitHub link).
• Prototype UI price source display available on Figma (Figma link).

Acceptance Criteria

• Integrate Oracle Sources from MinSwap DEX pools, Support both Smatcontract v2 and StableSwap pools type.
• Deliver a functional mockup UI for price source display with Orcfax, Liqwid, Indigo, Chali3 and MinSwap DEX

Evidence of Completion

• Public smart contracts deployed on testnet include Orcfax, Liqwid, Indigo, Chali3 and MinSwap DEX pools (github link)
• Prototype UI price source display (Figma Link)

Delivery Month

4

Cost

23000

Progress

40 %

Milestone Title

Splash integration, UI & Testnet release

Milestone Outputs

• Public smart contracts deployed on testnet for all integrated Oracle Sources. Transparent verification and accessibility for developers.
• UI price source display with test data on testnet, providing a clear demonstration of aggregated.

Acceptance Criteria

• Integrate Oracle Sources from Splash DEX pools. Supporting cfmm Pool Type.
• Implement UI for price source display with sample data on testnet.
• Deploy Testnet for all integrated Oracle Sources.

Evidence of Completion

• Public smart contracts deployed on testnet for all integrated Oracle Sources ( github link).
• UI price source display with test data on tesnet ( preview link).

Delivery Month

6

Cost

25000

Progress

80 %

Milestone Title

Mainnet release & documentation

Milestone Outputs

• Public Mainnet smart contracts are deployed and verified.
• Public technical documentation published in the GitHub repository.
• Public UI for price source display is released.
• A final project completion report is delivered.

Acceptance Criteria

• Complete support for all tokens from Orcfax, Liqwid, Indigo, Chali3.
• Ensure compatibility and optimization for the Top 10 ADA pools with the highest TVL on each DEXs: MinSwap & Splash.
• Deploy smart contracts on Mainnet.
• Technical documentation.

Evidence of Completion

Public Mainnet smart contracts. (github link)

Public technical documentation (github link).

Final project completion report (Upload via google driver)

Delivery Month

8

Cost

30000

Progress

100 %

[Final Pitch] Budget & Costs

Please provide a cost breakdown of the proposed work and resources

Estimated Project Duration: 8 months – Total Budget: ₳100,000 (ADA/USD ≈ 0.9, updated 15 Aug 2025)

1/ Product Research (₳10,000)

Research Oracle Sources: Orcfax, Liqwid, Indigo, MinSwap, Splash. Define data flow, system architecture.

2/ Project Management (₳7,000)

Coordinate tasks, track milestones, maintain Catalyst reports, manage resources.

3/ Project Development (₳63,000)

Build backend aggregator, smart contracts, UI, integrate all Oracle Sources as per milestones.

4/ Project Testing (₳20,000)

Functional tests, deploy on testnet and mainnet, and prepare final reports and documentation.

[Final Pitch] Value for Money

How does the cost of the project represent value for the Cardano ecosystem?

This project builds Multi-Source Oracle Aggregator, giving Cardano developers a reliable and unified token price feed from multiple sources (Orcfax, Liqwid, Indigo, MinSwap, Splash).

₳100,000 budget is split across research, development, management, testing, matching the workload and market rates for blockchain development.

All outputs: smart contracts, UI, and documentation will be open-source from day one (github), ensuring reuse and reducing costs for future Cardano projects.

Impact is measurable through the number of sources integrated, token pairs supported. This ensures the budget delivers long-term value and practical benefits to the ecosystem.

[Required Acknowledgements] Consent & Confirmation

Terms and Conditions:

Yes