Rapid DEX: Mainnet-Ready, Batcher-Free & Advanced Features

[Proposal setup] Proposal title

Please provide your proposal title

Rapid DEX: Mainnet-Ready, Batcher-Free & Advanced Features

[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

6

[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?

Rapid DEX’s funded prototype proved batcher-less pools cut fees, speed trades, and boost decentralization. Mainnet launch needs extra features for UX, efficiency, and sustainability.

[Proposal Summary] Supporting Documentation

Supporting links

• https://github.com/WingRiders/rapid-dex

[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 dependencies

[Proposal Summary] Project Open Source

Will your project's outputs be fully open source?

Yes

License and Additional Information

MIT 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.

The MIT License offers a simple framework that maximizes freedom for developers and organizations. It allows anyone to use, modify and integrate the Datum Explorer without restrictions, while still preserving attribution. Its clarity and minimal legal overhead encourage adoption and foster innovation within the Cardano ecosystem.

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

From the start, all source code will be publicly available on GitHub, enabling free use, modification, and integration. Development will be transparent, with open commits and pull requests. Updates will be shared through the Catalyst program, WingRiders Twitter, Discord, and other communication channels.

How will you provide high quality documentation?

Documentation will be maintained in the open-source repository, updated alongside each feature release. It will include clear usage guides, API references, annotated examples, and contribution instructions. Both technical and non-technical users will have access to step-by-step tutorials, screenshots, and demo videos to ensure easy adoption and community contributions.Documentation updates and usage guides will accompany feature releases, ensuring accessibility for both technical and non-technical users.

[Your Project and Solution] Solution

Please describe your proposed solution and how it addresses the problem

We propose to finalize and deploy Rapid DEX as a mainnet-ready decentralized exchange protocol, enabling direct, trustless interactions with liquidity pools—without reliance on third-party routers or intermediaries. The protocol builds on our working prototype and introduces a modular, opt-in architecture, empowering pool creators, liquidity providers, and integrators to tailor pool behavior according to their needs.

As part of this proposal, we commit to delivering at least 3 out of the following 5 protocol-level features, each designed to improve decentralization, composability, and capital efficiency:

Flexible Fee Configuration

Pool creators can define:

• Which token the fee is taken from (Input token, Output token, Token A, or Token B)
• Independent fee rates for both swap directions (A → B and B → A)

Zap In / Zap Out

Users can provide or withdraw liquidity using a single token, simplifying LP participation and improving UX.

Built-in Treasury Support

Enables routing a portion of swap fees to an optional project or DAO treasury, with logic opt-in per pool.

Atomic Routed Swaps

Enables multi-hop swaps (e.g., A → B → C) in a single transaction using multiple pool UTxOs. This improves liquidity access for long-tail assets.

Limit Orders

A separate smart contract holds user funds with target price conditions. These orders can be partially or fully fulfilled by counterparties who include both the pool and the limit order UTxOs in their swap transaction.

Aside from protocol-level features, we will package and document a complete Software Development Kit (SDK) to make Rapid DEX easily integrable by wallets, aggregators, and third-party applications.

The SDK will include:

• On-chain builders
• Serialization tools
• Transaction constructors
• Type-safe bindings

We will also provide the example usage in the frontend application.

The SDK will be a standalone deliverable and serves as a major milestone toward third-party adoption, even beyond the lifespan of this proposal.

By the end of this project, Rapid DEX will be a mainnet-ready, modular, and fully open-source DEX protocol, allowing anyone to launch and manage liquidity pools in a permissionless way, with strong developer support and a focus on long-term ecosystem integration.

Building on our successfully delivered Rapid DEX PoC, we are taking the next step toward a mainnet-ready, fully decentralized exchange for Cardano. This upgrade adds key features—customizable fees, optional project treasuries, zap-in/zap-out liquidity management, atomic routed swaps, and a production-ready SDK—while preserving the speed, low costs, and simplicity that set Rapid DEX apart. By removing intermediaries, reducing integration complexity, and giving projects more control over their liquidity, we will create a sustainable, efficient trading environment that strengthens Cardano’s DeFi competitiveness. With an experienced team, proven delivery record, and a clear execution roadmap, we are ready to deploy a reference implementation that aligns fully with Cardano’s decentralized ethos.

[Your Project and Solution] Impact

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

Building on the proven Rapid DEX PoC, this upgrade will deliver faster, cheaper, and more flexible decentralized trading on Cardano, increasing throughput, reducing costs, and deepening ecosystem liquidity. It will preserve the tested advantages of batcher-free swaps and factory-free pool creation, while adding new capabilities that expand functionality, improve integration, and support sustainable economics.

DeFi Traders keep the core benefits of the PoC—fast execution and lower swap costs without reclaim flows—and gain new routing mechanisms for multi-hop trades in a single transaction, broadening liquidity access and reducing overall costs.

Liquidity Providers continue to enjoy direct pool interaction and flexible participation, now with zap-in/zap-out for simplified management and per-direction fee settings to fine-tune pool performance.

Token Issuers already benefit from pool creation without factory dependencies, lowering integration complexity; the upgrade adds optional treasury splits to route swap fees toward incentives or development.

DEX Aggregators and Wallets maintain the simple, standardized integration of the PoC but gain atomic routed swaps, allowing better price paths and execution in a single transaction.

Developers and Integrators receive a new, production-ready SDK with builders, type-safe bindings, and examples to accelerate and secure integrations.

ADA Holders benefit from a more competitive, liquid DeFi layer, while Stake Pool Operators gain from higher transaction volumes and greater network activity.

As a public MIT-licensed reference implementation, Rapid DEX will serve as a model for future decentralized liquidity protocols on Cardano. Impact will be tracked via pool creation rates, swap volumes, adoption metrics, and treasury inflows, all published on a public dashboard.

[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?

The WingRiders engineering team has a proven track record in delivering production-grade blockchain infrastructure. From building Adalite and Emurgo’s first explorer/indexer to leading the development of WingRiders DEX and Launchpad, our team has the experience to handle complex DeFi projects. The feasibility of Rapid DEX is validated through an existing testnet prototype. Our phased approach ensures early verification of key features, minimizing technical risks while enabling agile adaptations. Comprehensive testing and audit processes will secure the final deployment.

[Milestones] Project Milestones

Milestone Title

Developer SDK & Modular Architecture

Milestone Outputs

• Initial SDK package exposing utility methods for core DEX operations, suitable for integration in external projects.
• Modularized architecture in backend and SDK to allow independent feature updates and future extension.
• Reference implementation demonstrating SDK usage in typical workflows (using existing frontend as example).
• CLI tool leveraging SDK for basic on-chain interactions.

Acceptance Criteria

• SDK is installable and documented, with clear examples for each included method.
• Reference implementation can run end-to-end using SDK calls, with mocked or testnet data.
• CLI tool can perform workflows supported by SDK.
• Backend and SDK codebases follow modular design principles (e.g., feature separation, reusable modules).

Evidence of Completion

• Published SDK package.
• Updated architecture diagram highlighting modularization changes.
• Recorded demo of reference implementation executing workflows successfully.
• Recorded demo of CLI executing workflows successfully.
• Repository for CLI tool with working test execution.

Delivery Month

2

Cost

30000

Progress

30 %

Milestone Title

Smart contracts for 3/5 protocol-level features

Milestone Outputs

Following outputs will be delivered within the milestone:

• On-chain deployment of smart contracts covering three selected protocol-level features.
• Contract specifications, including expected inputs, outputs, and on-chain state changes.

Acceptance Criteria

• All three contracts compile, deploy, and validate successfully on testnet.
• Test suite covers normal operation and error handling paths for each contract.
• Documentation clearly outlines usage and expected behavior of deployed contracts.

Evidence of Completion

• Contract source code in repository with passing CI pipeline for build & test.
• Testnet transaction hashes for deployed contracts.

Delivery Month

4

Cost

30000

Progress

60 %

Milestone Title

SDK, backend & frontend updates for same features

Milestone Outputs

• SDK methods added or updated to support the three protocol-level features delivered in M2.
• Backend service updates to provide API endpoints or gRPC calls for these features.
• Frontend updates enabling end-to-end interaction with the new features via backend and SDK.

Acceptance Criteria

• Frontend can successfully execute workflows involving the three protocol-level features on testnet.
• Backend endpoints or gRPC calls return expected results and handle invalid input gracefully.
• SDK exposes developer-friendly methods for interacting with the new features without requiring direct contract calls.
• All changes are tested, documented, and integrated into CI/CD pipelines.

Evidence of Completion

• Updated SDK package and backend deployment logs.
• Screenshots or recordings showing frontend interaction with the features on testnet.
• API/gRPC documentation updated with new endpoints.
• Passing automated test results covering backend, SDK, and frontend integration.

Delivery Month

5

Cost

25000

Progress

90 %

Milestone Title

Project Close-out Report and Project Close-out Video

Milestone Outputs

Following outputs will be included

• A 2/3 page written summary ‘Project Close-out Report’, including:
  • List of KPIS.
  • Next-stage plans for the product or service.
• Short video ‘Project Close-out Video’.

Acceptance Criteria

1. Project Close-out Report’:
   1. Lists Key Performance Indicators (KPIs) achieved during the project,
   2. Explains how the KPIs were met or why they weren’t.
   3. Outlines next-stage plans for the product or service.
2. ‘Project Close-out Video’ outlining the project achievements and deliverables.

Evidence of Completion

• Final project report available on a publicly-accessible link.
• Video available on a publicly accessible link.

Delivery Month

6

Cost

15000

Progress

100 %

[Final Pitch] Budget & Costs

Please provide a cost breakdown of the proposed work and resources

• Milestone 1: Developer SDK & Modular Architecture
• Milestone Budget: ₳ 30,000
• Resource MDs:
  • Software engineer (senior & junior): 28
  • Project manager: 1.5
• Milestone 2: Smart contracts for 3/5 protocol-level features
• Milestone Budget: ₳ 30,000
• Resource MDs:
  • Software engineer (senior & junior): 28
  • Project manager: 1.5
• Milestone 3: SDK, backend & frontend updates for same features
• Milestone Budget: ₳ 25,000
• Resource MDs:
  • Software engineer (senior & junior): 23
  • Project manager: 1.5
• Final Milestone: Project close-out report and video
• Milestone Budget: ₳ 15,000
• Resource MDs:
  • Software engineer: 5
  • Marketing: 10
  • Project manager: 0,5

[Final Pitch] Value for Money

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

The requested budget aligns with market-standard development costs for blockchain DeFi protocols. Given our existing infrastructure and reusable components, we are able to deliver a full-scale DEX upgrade at an efficient cost. The value to the ecosystem comes not only from the features themselves but also from the open-source, modular approach that allows further community-driven extensions. Our transparent development and documentation practices will ensure long-term utility beyond the initial deployment, creating a valuable foundation for Cardano DeFi.

[Required Acknowledgements] Consent & Confirmation

Terms and Conditions:

Yes