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I already run a PAN-card portal and have obtained full documentation plus a live API key for the official Application API. What I now need is clean, well-tested code that plugs this API into my existing workflow so users can: • submit brand-new PAN applications • update records they have already started • pull back the latest application details in real time The API is REST/JSON and secured only by an API key, so no OAuth dance is required—just proper header handling and secure storage of the key on the server. I will provide the key, the docs, and access to a staging instance of the portal. Please wire the endpoints, map all responses to our current UI, build solid error/timeout handling, and give me a short read-me so future devs can follow the flow. Everything must be fully tested on staging; once it passes, I’ll move it to production myself. If you’ve integrated government or financial APIs before, that’s a plus, but clear, maintainable code and reliable testing matter most.
Project ID: 40212090
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Active 26 days ago
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20 freelancers are bidding on average ₹5,524 INR for this job

Hi there, I understand you need a clean, well-tested integration of your official PAN Card Application API into your existing portal workflow to enable new applications, updates, and real-time status checks. I’m confident I can deliver robust backend code with comprehensive error handling and secure API key management tailored to your setup. - Connect REST/JSON API endpoints seamlessly to your UI workflow - Implement secure header handling and key storage on the server - Build thorough error, timeout, and response handling with real-world testing - Provide detailed, clear documentation (README) for easy future maintenance - Fully test all functions on your staging environment before handover **Skills:** ✅ REST API integration with secure header and JSON handling ✅ PHP backend development tailored to existing portal ✅ API error/timeout handling with reliable retry mechanisms ✅ Clear, maintainable coding with documentation provided ✅ Testing/QA including real-time staging verification **Certificates:** ✅ Microsoft Registered: MCSA | MCSE | MCT ✅ cPanel & WHM Certified CWSA-2 I’m ready to start immediately and ensure a seamless, reliable integration on your staging site within 7 days. Could you please share the specific API documentation and any example data formats your current UI uses? Best regards,
₹6,000 INR in 7 days
5.6
5.6

As an experienced software developer with a broad skillset, I am well-equipped to handle the challenges of integrating the PAN Card Application API into your existing portal. My proficiency in languages such as Node.js, PHP and Python, which are essential for your project, will guarantee a smooth integration process. My knowledge extends to both REST and JSON for APIs, ensuring I am equipped with the necessary tools for this particular assignment. Furthermore, my seven years of experience allocating databases, precisely MySQL and MongoDB, will be beneficial for securely storing the live API key on your server. In addition, my familiarity with AWS Web Services will prove invaluable in providing appropriate headers handling to protect your API key during data transactions. Reliability and transparency are key attributes that define my professional outlook on projects. Therefore, from wire framing to effective endpoint mapping and most importantly solid error/timeout handling; I commit myself to delivering a clean code that seamlessly synchronizes user experiences on the current portal with necessary APIs in a secured manner. Given my vast experience and skill set flexibility, I am confident you will not only be satisfied with the final product but also the smooth transition in}o your production phase.
₹1,500 INR in 7 days
6.3
6.3

Hello Ji, Could we connect for your pan cart application api .i will do your requirement on time like pan card verification. Could we connect on chat for more detail for your applications. Thanks Ganesh D
₹7,000 INR in 7 days
4.0
4.0

Hi Having successfully developed and integrated multiple APIs throughout my 10+ years of experience, I understand the importance of robust code and thorough testing. My expertise in API Development, Integration and Software Development makes me an ideal candidate for your project. I can confidently wire the endpoints, manage secure header handling and store your API key securely on the server side. Additionally, my skillfulness in PHP and Web Development will ensure a seamless integration of the PAN-card API into your existing workflow according to your UI. In short, I bring not just a deep understanding of the work but a dedication to its excellence. Let's collaborate to bring your ideas to life! Regards Parul Saini
₹5,000 INR in 7 days
3.8
3.8

As a seasoned Full Stack Developer with a strong background in API development and integration, I am confident in my ability to deliver the clean, well-tested code that you need for the PAN-card application API integration project. With over six years of experience designing and deploying RESTful and GraphQL APIs, I have gained an in-depth understanding of how to effectively handle headers, secure API keys, and manage data securely. Moreover, having successfully built real-time dashboards, admin panels, and business automation tools, I can ensure a seamless flow between your existing UI and the new PAN API. My solid track record in building clear, maintainable code speaks volumes about my commitment to providing reliable and future-proof user experiences. I also want to emphasize the value I place on comprehensive testing, an aspect you highlighted as crucial for this project. I don't just write code; I meticulously test everything to ensure it passes rigorous quality checks. Your project will be no exception as it will undergo extensive testing on your staging server before being deployed by yourself.
₹8,600 INR in 6 days
1.8
1.8

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on PHP, Testing / QA, Software Development, JSON, Web Development, Backend Development, API Development, API Integration, REST API Lets connect in chat so that We discuss further. Regards
₹1,500 INR in 7 days
0.1
0.1

Hi, I can help you integrate your PAN Application API smoothly into your existing portal with clean, secure, and well-tested code. I will: ✔ Connect and configure all REST endpoints ✔ Handle API key securely on the server ✔ Map responses properly to your current UI ✔ Add strong error and timeout handling ✔ Test everything on staging ✔ Provide a clear README for future developers I focus on writing simple, maintainable code and making sure the integration works reliably before handover. I’m ready to start and can deliver within the agreed timeline. Best regards, Umer
₹5,000 INR in 6 days
0.0
0.0

Hey, I saw your requirement and I can help you build a seamless PAN-card API integration for new applications, updates and real-time status retrieval. I have more than 5 years of experience in Node.js, Express, TypeScript and REST API integration and can help you. Deliverables: Endpoint implementation for submit, update and fetch operations Secure API-key storage with proper header handling Full unit and integration test coverage Robust error and timeout handling Clear README with setup and usage instructions Would love to connect and talk to you. Let me know
₹6,875 INR in 3 days
0.0
0.0

Hi, I’ve worked on REST/JSON API integrations before, including secure key-based government/financial workflows. I can plug your PAN Application API into the existing portal, covering new submissions, updates, and real-time status retrieval. I’ll handle secure API key storage on the server, map all responses to your current UI, and implement solid error + timeout handling. Everything will be fully tested on staging, and I’ll include a short read-me so future developers can follow the integration flow easily. I focus on clean, maintainable code and reliable testing rather than quick patches. Can start immediately and deliver within 3 days. Thanks.
₹3,500 INR in 4 days
0.0
0.0

Hello Dear, I am Jagmohan Kumawat, a multidisciplinary digital expert with 5+ years of experience building luxury websites, mobile apps, digital marketing, automations, intelligent systems and high impact creative assets. My focus is always on delivering results with precision, style and longterm scalability. Signature Excellence • Luxury Websites & Web Systems • iOS & Android Mobile App Development • Custom API Integrations • Advanced Workflow Automation & AI Systems • Salesforce CRM Setup, Flows & Cloud Integrations • Professional Branding & UI/UX • Social Media Content & Digital Strategy • E-Commerce Systems & Automation • Premium Video Creation & Cinematic Editing Technology & Creative Mastery Node.js | React | Laravel | WordPress | PHP | JS | Shopify | Android/iOS | Salesforce Cloud | CRM Automations | REST APIs | Firebase | AI Solutions | Figma | Adobe Suite (Illustrator, Photoshop, Premiere Pro, After Effects) Canva Pro | AutoCAD | Motion Graphics & AI Video | Digital Marketing | Content Writer | SEO/SMO I’m ready to take your project forward with precision, creativity and technical excellence. Feel free to share more details. I will prepare a customize plan for your exact needs. Best Regards Jagmohan Kumawat
₹12,000 INR in 7 days
0.0
0.0

I will integrate your PAN Application REST API into your existing portal using secure and well-structured PHP backend development. The integration will include new application submission, application updates, and real-time status retrieval. I will implement proper API key handling, request validation, error and timeout management, and complete staging testing. Clean, maintainable code and clear documentation will be provided for future scalability.
₹7,000 INR in 5 days
0.0
0.0

I am a backend developer with 3+ years of experience in Python and FastAPI, building scalable, production-grade APIs. I have worked on real-world products involving JWT authentication, role-based access control, async processing, database optimization, and integrations with Redis, RabbitMQ, and AWS. I focus on clean architecture, performance, and delivering reliable backend solutions that scale with business needs.
₹7,000 INR in 7 days
0.0
0.0

Hello, I’m a backend developer with solid experience integrating REST/JSON APIs into production systems, including finance and compliance-driven workflows. I understand the importance of accuracy, reliability, and clean error handling when dealing with PAN and government-linked services. I can securely integrate your official PAN Application API into your existing portal, covering new application submission, updating in-progress records, and fetching real-time application status. The API key will be handled server-side with proper security practices, and all request/response mappings will align cleanly with your current UI. I’ll implement robust validation, timeout and error handling, and thoroughly test all endpoints on your staging environment. The final delivery will include well-structured, maintainable PHP code along with a concise README explaining the integration flow so future developers can easily understand and extend it. My focus is on dependable integration, clear documentation, and production-ready code you can confidently deploy.
₹8,000 INR in 7 days
0.0
0.0

Asansol, India
Member since Feb 7, 2026
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