Please describe your proposed solution.

Today, the cardano community is growing,so the demand for mining and information retrieval on the blockchain is increasing. There have been some API service providers for the community, but due to the high demand. The current access is quite slow and insufficient. Realizing the importance of this development, we decided to build and develop an API system based on our cardano node and DB synchronization system.

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

Benefits for the Cardano ecosystem:

• Developers can focus on application development without worrying about building node infrastructure to access data because our APIs already provide.
• Providing APIs for the community to use will give developers more options to interact with the Cardano blockchain
• Developers and businesses have a comprehensive and customizable toolkit to build their blockchain applications
• By building APIs we will contribute to expanding the community of Cardano users

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?

Our DCOne Crypto team:

Our total Fund 9 proposal has 02 projects. Funded for 01 catalyst proposal and successfully completed and delivered.

From the project at Fund 9 we have achieved some success & dedication to the community on the Cardano ecosystem. So we continue to believe that these are some of the reasons we are able and fit to continue developing the products we have suggested above.

Complete the certificate "Cardano Blockchain Certified Associate (CBCA) Alpha Program 2"

Here's where you can see a quick history of the facts and achievements: https://dconecrypto.finance/report-log.html

Here are some of our achievements:

• We were mentioned at "Catalyst Weekly #69" with remarkable information

• We contributed the "DCOne Crypto Webhook API" toolkit on https://developers.cardano.org/tools

• We went with Koios and contributed "Koios Cluster as Instance Provider" as instance provider at https://github.com/cardano-community/koios-artifacts

> More information: We understand how to operate and access APIs so in Fund 11 we will build and contribute a source code that provides data access via API with suggestions

• We have successfully Closed the DCOne Crypto project at Fund 9 with 1 month ahead of the committed plan.

• We were honored at "Funded Project Reporting & Milestones Guidance - Public" in the category of "Good examples of PoA completions" with project number of DCOne Crypto in Fund 9 (ID: 900078)

• We have been deeply thanked by Lace to all DApps that have supported #LacePlatform see here: https://twitter.com/lace_io/status/1666113474873753600

Here are the items we have been building even though they are not in the Fund 9 package:

• We have built a basic article system and the user community can support sponsoring the author. See here: https://dconecrypto.finance/article.html

• We provide a toolkit that helps users to deposit multiple ADA addresses, tokens and create their own NFT, Mint, Burn. See here: https://cardano.dconecrypto.finance/. In this kit, we are upgrading and expanding the functionality and publicly sharing the source code to contribute to the growing Cardano ecosystem to reach more application developers.

• We have also successfully integrated a wallet to support article bonuses for authors, but it still needs further development to use other functions on our system. Moreover, we are participating in the integration of WalletConnect wallet through dcSpark's program.

• Website usage traffic source data in different countries

• iUSD, iETH, iBTC tracking data of DCOne Crypto group, channel private on Telegram. We are currently processing data from several Minswap DEX tokens and swaps

Minswap DEX Swap History

Indigo Token Transaction History

Indigo Token Stats Chart iBTC

Indigo Token Stats Chart iETH

Indigo Token Stats Chart iUSD

What are the key milestones you need to achieve in order to complete your project successfully?

Architecture infrastructure:

Milestone 1: Deploying infrastructure and building Cardano-node system - 1 month

Key Activities:

• Design solution architecture diagram for the system
• Setup, configure Cardano - Node system and DB-Sync system
• Perform synchronous running of blockchain database
• Check the query and try to retrieve the data
• Create system documentation and Node build guides.
• Conduct research and analysis of API items that need to be built.
• Build functions, create API queries to query blockchain data
• Execute DbSync queries command
• Validating and testing scripts.

Acceptance Criteria:

• Documentation is easy to read and understand.
• The Node system runs stably and synchronizes in real time.
• Successful execution of test query with reliable results
• API queries working and published on Github

Evidence of Milestone completion:

• System design documentation.
• Screenshots demonstrating Cardano-node system running
• Screenshots or videos demonstrating accessing database DbSync-Node.
• Github repository with DbSync queries
• DbSync queries document.
• Screenshots or videos demonstrating exact DbSync queries.

Deliver date: 4 weeks

Projected cost: 39,800 ADA (30%)

>Milestone 2: API Development - 1 month

Key Activities:

• Provide a common architectural framework for source code
• Design and develop APIs from the outputs of milestone 1
• Create APIs documents with Swagger/OpenAPI spec generation
• Implement security

Acceptance Criteria:

• Fully functional API building
• System can run correctly and low latency

Evidence of Milestone completion:

• Github repository with source code project.
• Github repository with API specification document.

Deliver date: 4 weeks

Projected cost: 26,533 ADA (20%)

>Milestone 3: API testing, bugs fix and integration - 1 month

Key Activities:

• Test the API for compatibility with web platforms
• Tweaking and refining the APIs
• Trial integration into some partner systems - eg dconecrypto.finance website
• Create documentation and integration guides

Acceptance Criteria:

• Integration guides and documentation available for developers.
• Integrate the API into at least one working system
• The our APIs are ready to use

Evidence of Milestone completion:

• Github repository with integration guides.
• Screenshots demonstrating APIs running.
• Successfully integrated into dconecrypto.finance website
• Screenshots demonstrating successful integration our API

Deliver date: 4 weeks

Projected cost: 26,533 ADA (20%)

>Milestone 4 : User Adoption and community promotion - 1 month

Key Activities:

• Promote API to Cardano community in telegram group, twitter,…
• Using telegram bot to reach users
• Receive feedback and reviews from the community
• Tracking metric data to evaluate community interest
• Published code on Github
• Make a youtube video to introduce the solution

Acceptance Criteria:

• At least one system is successfully integrated and running officially
• Good feedback from the community
• Telegram bot push our APIs project to at least 5 groups

Evidence of Milestone completion:

• Screenshots demonstrating feedback from community about our APIs system
• Screenshots demonstrating community rating about our APIs system
• Video youtube introduce our APIs

Deliver date: 4 weeks

Projected cost: 19,900 ADA (15%)

>Milestone Final: Upgrade and optimize – 1 month

Key Activities:

• Continue to receive user feedback
• Analyze data to identify areas of improvement and optimization
• Update system patches from community feedback

Acceptance Criteria:

• Perform providing updates based on user feedback
• API system runs smoothly and accurately

Evidence of Milestone completion:

• Document update patches
• Github repository with updated document.

Deliver date: 4 weeks

Projected cost: 19,900 ADA (15%)

Who is in the project team and what are their roles?

Team of programmers with over 10 years of experience, for 6 years working together in the field of Blockchain & Crypto.

Project Management/Technical Project Lead: Luu Quoc Cuong

• Twitter: <https://twitter.com/cuongLuu3535>
• Linkedin: <https://www.linkedin.com/in/cuong-quoc-516147117/>
• Telegram: <https://t.me/Cuongluu>

Lead Dev/Developer Full Stack: Dinh Huu Tac Qui

• Twitter: <https://twitter.com/dconeservice>
• Telegram: <https://t.me/DCOneService>

Devops/System: Nguyen Hoang Le Cong

• Twitter: <https://twitter.com/lecong290398>
• Linkedin: <https://www.linkedin.com/in/cong-le-099235142>
• Telegram: <https://t.me/lecong290398>

Developer Full Stack: Nguyen Khanh Hung

• LinkedIn: <https://www.linkedin.com/in/nguy%E1%BB%85n-kh%C3%A1nh-h%C6%B0ng-a38826201/>

UI/UX Designer/QA/Tester: Huyen Vo

Team image and meeting room corner:

Please provide a cost breakdown of the proposed work and resources.

The total budget of the project is 132,666 ₳

(rate: 1 ₳ = 0,3 USD)

Technical Project Lead:

$3,000/month *5 months = $15,000

DevOps/ System:

$2,200/month * 3 months = $6,600

Developer full stack:

$2,000/month * 3 months=$6,000

Database engineer:

$2,000/month * 2 months=$4,000

Core version server cost system infrastructure:

$350 * 12 months = $4,200

Reserve cost: $2,500

Creativity, community rewards: $1,500

Total cost: $39,800

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

The cost of the project represent value for the Cardano ecosystem by:

• Enhancing developer productivity: Developers can save time and effort by leveraging the pre-built components and functionalities offered by the API system. This increased productivity translates into cost savings for developers and organizations building applications on Cardano.
• Less burden on developers: By using our APIs, developers can focus on building great features for their apps instead of starting from scratch. This helps application development projects to be completed quickly. Businesses can then take advantage of market opportunities faster, increasing revenue and return on investment.
• Leverage the existing system: By using our API system, developers can take advantage of Cardano's robust and secure blockchain infrastructure without costly investments or maintenance costs continuously.
• Drive ecosystem growth and innovation: Our API system is open source, so developers are free to build and contribute together. This helps to expand use cases, engage broader users, and bring more value to the growth of the Cardano ecosystem.

These benefits contribute to the overall value and success of Cardano as a blockchain platform.