[Proposal setup] Proposal title

Please provide your proposal title

Connect The Dots: Cardano Integration For Drupal

[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

12

[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 lacks accessible tools for mainstream web developers, limiting adoption and real-world blockchain use cases.

[Proposal Summary] Supporting Documentation

Supporting links

• https://www.drupal.org/docs/getting-started/understanding-drupal/overview-of-drupal
,
• https://www.drupal.org/project/cardano_blockchain
,
• https://www.drupal.org/u/robert-castelo

[Proposal Summary] Project Dependencies

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

Yes

Describe any dependencies or write 'No dependencies'

The project has a stretch goal for third party security audits of code developed to provide assurance to users. A company with Cardano expertise will security audit the Javascript interacting with CIP-30 wallets, and a separate company with Drupal expertise will security audit the PHP code of the Drupal modules. A security audit ensures the Cardano Drupal integration handles blockchain interactions safely - protecting users, data, and funds from potential vulnerabilities.

[Proposal Summary] Project Open Source

Will your project's outputs be fully open source?

Yes

License and Additional Information

The project will be fully open-source, hosted on drupal.org, and released under the GNU General Public License (GPL) version 2 or later, in compliance with Drupal’s licensing requirements.

[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.

All source code will be released under the GNU General Public License version 2 or later (GPL-2.0-or-later).

Drupal considers modules as derivative works, meaning any PHP or JavaScript code that interacts with Drupal must be released under GPL-2.0-or-later license.

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

The source code will be hosted on drupal.org as contributed modules, each with their own project page that includes download options, an issue tracker, and links to supporting documentation.

I will be promoting the Cardano Drupal modules to the Drupal community through social media, podcasts, articles, and presentations at Drupal events.

How will you provide high quality documentation?

Documentation will initially be added to the README files of each Drupal module as they are developed. Once all the modules are available as a Release Candidate comprehensive documentation pages will be added on drupal.org explaining how to use the modules individually and together for specific use cases.

[Your Project and Solution] Solution

Please describe your proposed solution and how it addresses the problem

This project will deliver a suite of open-source Drupal modules that enable Cardano integration with Drupal websites.

The modules will focus on solving specific use cases - asset minting, authentication, and e-commerce, while also providing a generalised foundation for developers to create their own Cardano powered features.

Features

CIP-30 Wallet integration

Connect Drupal users’ wallets, retrieve addresses, request transaction signing, and respond to wallet events.

Cardano blockchain integration

RESTful blockchain access using Blockfrost, with modular architecture allowing future support for aleternative providers. Full network support (Mainnet, Preprod, Preview) and APIs for querying addresses, assets, and transactions.

IPFS integration

Upload, pin, and retrieve files on IPFS via Blockfrost, with role-based permissions.

Native Asset Minting

Create NFTs, fungible tokens, and multisig/time-locked assets. Includes customizable metadata, royalty options, fee management, and minting directly from wallets or through Blockfrost.

Authentication / Single-Sign-On

Enable users to log in or register using their Cardano wallet, an owned NFT, staking activity, or asset balance.

Assets Display

Display user wallet assets in Drupal accounts and integrate them across site features using Drupal Media Entities.

E-Commerce

Allow checkout and payments in ADA using Drupal Commerce, with admin settings, payment monitoring, currency conversion, and user-friendly checkout flows.

Workflow Automation (ECA Integration)

Use wallet connections, asset retrievals, transaction requests, and minting as triggers and actions in Drupal's no-code ECA (Event Condition Action) workflows.

Technical Approach

The system will be built around Drupal Plugin Types, ensuring a modular, extensible architecture. Each interaction - wallets, blockchain data, IPFS storage, will be abstracted through plugins, allowing flexibility in the future to add new providers or services without disrupting features that rely on those interactions.

A Cardano Blockchain core module will define the foundational services, and use case-specific modules (e.g., E-commerce, Authentication) will build on this base, ensuring consistent development practices and easy extensibility.

Documentation

High-quality documentation is essential to lower the barrier to entry for developers and site builders - especially those who are new to Web3, Cardano, and blockchain technologies. Many talented individuals from the traditional web and software development communities are curious about blockchain but are held back by the steep learning curve and lack of accessible resources.

By providing clear, beginner friendly documentation and tutorials, this project will empower more developers to build confidently on Cardano, increase community engagement, and accelerate the growth of a decentralised ecosystem.

Documentation will initially be added to the README files of each Drupal module as they are developed. Once all the modules are available as a Release Candidate comprehensive documentation pages will be added on drupal.org explaining how to use the modules individually and together for specific use cases.

[Your Project and Solution] Impact

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

By lowering the barrier for traditional web developers this proposal brings more builders into the Cardano ecosystem, increases wallet installations, and supports the creation of new Cardano powered applications.

The Cardano community will benefit from a larger developer base, more utility for Cardano, and stronger foundations for long term growth through real world use cases that encourage active engagement.

[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?

Expertise and Capability

• 21 years of experience in Drupal development
• Developed 60 Drupal modules
• Has maintained a Drupal module for 20+ years
• Recognised within the Drupal community for organising and speaking at various events, contributing to documentation, and being a member of the Drupal Security Team
• Active in the Cardano community as a Cardano Ambassador and event organiser
• Proficient with the Blockfrost API and Emurgo Cardano Serialization Library

Feasibility

• The CardanoPress WordPress plugin serves as a working reference for a PHP-based solution
• A minimal proof-of-concept has been developed that enables minting of Native Assets and sending payments from Drupal

Accountability

Milestones

Funds are allocated clearly across development, auditing, marketing, and community engagement, ensuring a justified distribution. The funding follows a milestone-based system, with progress being publicly shared before the release of further funds, ensuring accountability at each stage.

If the value of ADA rises above the level used to calculate the original budget, any surplus from a given milestone will be carried forward to support future milestones. This helps to balance fluctuations in ADA value and maintain stable project delivery over time.

Stretch Goals

If all core milestones are completed and there is remaining budget, additional development will continue through predefined stretch goal milestones. These will be delivered in priority order until the available funds are fully allocated.

Accounting

Funds will be received and managed by Code Positive Services Limited, a company specialising in Drupal development. The company is directed by Robert Castelo, who will oversee financial accountability for the project.

Validation

PHPUnit to test internal services, plugin logic, and configuration behaviour.

End-to-end testing with Playwright to simulate real user interactions across browsers.

Release Plan

The software will follow a versioning process (Alpha, Beta, RC, Stable) and will be developed publicly to encourage testing and feedback from the Drupal community as early as possible.

• Alpha: Initial release of each module
• Beta: Implement necessary changes for modules to work together, make feature adjustments, and update documentation
• Feature Freeze: Starts from the first Release Candidate (RC)
• Final RC: After 1 month of all reported bugs being fixed and no new bugs being introduced, the Final RC will be re-released as the first Stable Release

[Milestones] Project Milestones

Milestone Title

Basic Integration

Milestone Outputs

Drupal modules providing basic integration:

• CIP-30 Wallet integration
• Cardano blockchain integration
• IPFS integration

Drupal Plugin Types will be developed to create a modular, extensible architecture. Wallets, blockchain data, and IPFS storage will each be handled through dedicated plugins, making it easy to add or swap providers without affecting dependent features.

A Cardano Blockchain core module will provide the foundational services that use case–specific modules developed in later milestones will rely on.

Acceptance Criteria

CIP-30 Wallet integration

• Select wallet
• Request wallet connection
• Get the wallets address(es)
• Get the wallets assets info
• Request transaction signing
• Register for wallet events

Cardano blockchain integration

• Integration with Blockfrost to provide RESTful access to the Cardano blockchain
• Support multiple networks (Mainet/Preproduction/Preview)
• API for most common queries (latest slot, addresses, assets, transactions)
• API for generic method to handle all other requests to Blockfrost

IPFS integration

• Integration with Blockfrost to provide IPFS services
• Upload Files to IPFS
• Store IPFS CID of uploaded files
• Retrieve Files by CID
• Pin/Unpin Files
• Role-Based CRUD permissions

Information Display

• Display wallet assets on user accounts
• Enable assets to be displayed in other Drupal features (as Media Entities)

Evidence of Completion

• Release of code on Drupal.org
• Document steps for testing
• Demonstration video showcasing each of the acceptance criteria

Delivery Month

2

Cost

20000

Milestone Title

Native Asset Minting

Milestone Outputs

Drupal modules providing fully configurable Cardano native asset minting through the UI of a Drupal form with support for fungible and non fungible tokens, and options for metadata, royalties, and custom scripts.

Acceptance Criteria

Native Asset Minting

• Wallet select and connect
• Minting form
• Asset name and description
• Fungible tokens
• NFTs
• Multisig
• Time locked
• Metadata (CIP-25, CIP-26, Custom format)
• Royalty percentage
• Custom script option
• Minimum amount of ADA to include with mint transaction
• Transaction Time-to-Live (how long before the transaction expires if not included in a block)
• Fee options (automatically calculate fees, buffer to ensure transaction during network congestion)
• Minting from user’s wallet
• Minting via Blockfrost

Evidence of Completion

• Release of code on Drupal.org
• Document steps for testing
• Demonstration video showcasing each of the acceptance criteria

Delivery Month

5

Cost

25000

Milestone Title

Authentication / Single-Sign-On

Milestone Outputs

Provide authentication and single-sign-on user cases.

Drupal modules using CIP-30 wallet assets to enable login and Single-Sign-On, with authentication via wallet address, NFT ownership, staking status, and asset balance.

Acceptance Criteria

Authentication / Single-Sign-On

• Account creation or authentication against existing account
• Role delegation
• Based on wallet address
• Based on NFT
• Based on current staking
• Based on asset balance

Evidence of Completion

• Release of code on Drupal.org
• Document steps for testing
• Demonstration video showcasing each of the acceptance criteria

Delivery Month

6

Cost

11429

Milestone Title

eCommerce

Milestone Outputs

Provides an ecommerce user case.

Drupal modules integrating Cardano with Drupal Commerce, the leading e-commerce framework for Drupal used to build online stores with product, cart, and order management.

This integration adds admin wallet and API settings, transaction monitoring with logs and reports, and currency conversion to ADA or fiat.

Acceptance Criteria

Integration with Drupal’s main e-commerce system (Commerce module)

• Admin settings (wallet address, third party API keys, number of confirmations)
• Order management dashboard
• Transaction monitoring
• Currency and exchange rate settings
• Checkout and payment options

Evidence of Completion

• Release of code on Drupal.org
• Document steps for testing
• Demonstration video showcasing each of the acceptance criteria

Delivery Month

9

Cost

25000

Milestone Title

Workflow Automation

Milestone Outputs

Drupal modules integrating Cardano with the ECA (Event Condition Action) module, Drupal’s powerful drag-and-drop workflow builder.

ECA can combine Cardano blockchain actions with a vast range of events and actions from other Drupal modules, allowing site builders to create complex, cross-system workflows without coding.

Wallet connections, asset checks, transaction signing, status tracking, and native asset minting can all be triggered or combined with other site activity, unlocking innovative real-world use cases that seamlessly blend Cardano with the wider Drupal ecosystem.

Acceptance Criteria

ECA (Event Condition Action) Integration

• Wallet connect/disconnect as ECA events
• Wallet info retrieval as ECA actions (wallet assets, used addresses, current staking)
• Transaction signing request as ECA action
• Check transaction status as ECA action
• Native asset minting as ECA action (through Blockfrost API)

Evidence of Completion

• Release of code on Drupal.org
• Document steps for testing
• Demonstration video showcasing each of the acceptance criteria

Delivery Month

10

Cost

10714

Milestone Title

Documentation And Final Releases

Milestone Outputs

• Documentation: Comprehensive, step-by-step setup and usage guides for each developed Drupal module, published and maintained on https://www.drupal.org/docs.). Documentation will include screenshots, code samples, and troubleshooting tips.
• Beta Release: Initial public release of all modules for testing and community feedback. Focus on identifying bugs, gathering feature suggestions, and improving usability.
• Release Candidate (RC): Feature-complete version incorporating fixes and refinements from the beta phase. Intended for final validation before stable release.
• Stable Release: Published after at least 1 month in RC stage without critical issues reported. Considered production-ready and supported for maintenance and security updates.
• Project Close-out Report and Video

Acceptance Criteria

• Easy to follow documentation on how to set up and use each of the developed modules
• Beta release of all Drupal modules is published and available for community testing
• Feedback and bug reports from the beta stage are reviewed, and necessary fixes or improvements are implemented before RC release
• Release Candidate (RC) versions of all modules are feature complete and all reported issues have been fixed
• Stable release occurs only after a minimum of 1 month in RC stage without any critical issues reported
• Delivery of Project Close-out Report and Video

Evidence of Completion

• Report listing modules and their documentation
• Report listing all Drupal modules with a stable release
• Project Close-out Report and Video

Delivery Month

12

Cost

7857

[Final Pitch] Budget & Costs

Please provide a cost breakdown of the proposed work and resources

Milestone 1

Development: Research 5 Days 3,571 ADA

Development: CIP-30 Wallet Integration 8 Days 5,714 ADA

Development: Cardano blockchain Integration 5 Days 3,571 ADA

Development: IPFS Integration 5 Days 3,571 ADA

Development: Display Assets 5 Days 3,571 ADA

SubTotal: 28 Days 20,000 ADA

Milestone 2

Development Native Asset Minting 35 Days 25,000 ADA

SubTotal: 35 Days 25,000 ADA

Milestone 3

Development Authentication / Single-Sign-On 16 Days 11,429 ADA

SubTotal: 16 Days 11,429 ADA

Milestone 4

Development E-Commerce 35 Days 25,000 ADA

SubTotal: 35 Days 25,000 ADA

Milestone 5

Development ECA Integration 15 Days 10,714 ADA

SubTotal: 15 Days 10,714 ADA

Milestone 6

Documentation Documentation 3 Days 2,143 ADA

Maintenance Maintenance 8 Days 5,714 ADA

SubTotal: 11 Days 7,857 ADA

**Total ** 140 Days 100,000 ADA

Rates

Rate/Day (ADA): 714

Rate/Day (GBP): 500

ADA/GBP: 1 ADA / £0.7

[Final Pitch] Value for Money

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

Stretch Goals

If all core milestones are completed and there is remaining budget due to the value of Ada going higher than what it is at time of this proposal, additional development will continue through predefined stretch goal milestones. These will be delivered until the available funds are fully allocated:

• Security audit of Javascript interacting with CIP-30 wallets
• Security audit of PHP code of the Drupal modules
• How To videos of set up and usage of the Drupal modules
• In person presentations at Drupal community events

Streamlined and Consistent

All aspects of the project management, development, quality assurance, and documentation will be carried out by one person. This unified approach ensures consistency across outputs, faster communication, and a streamlined workflow, reducing overhead and avoiding delays and miscommunication often seen in multi-person teams.

Development Multiplier

In the longer term, this work aims to create infrastructure that facilitates easier integration of Cardano into mainstream web platforms like Drupal, which can help reduce costs for future development and support broader ecosystem adoption.

Self Funding

The project intends to become self-funding after the initial implementation phase. Revenue will be generated through sponsored wallet suggestions and relevant promotions of third-party Cardano ecosystem services. This model ensures long-term sustainability and continued innovation without ongoing reliance on Catalyst funding.

[Required Acknowledgements] Consent & Confirmation

Terms and Conditions:

Yes