API stands for Application Programming Interface, and it is an layer of interface that allows programs to interact with each other. An experienced API developer can build complex interactions between applications, making them faster, more reliable, and accurate. Whether you need a second opinion on your existing application or you want to create an entirely new application for your business, an expert API Developer can do the job for you.
An API Developer's job does not stop at developing. They can also work on design and implementation testing, guide through the entire architect process from prototyping to implementation, create custom system integration solution based on the project requirements, and collaborate with other teams to develop systems that meet customer expectations.
When hiring an API Developer through Freelancer.com, rest assured that they are as competent as any hired onsite software engineer.
Here’s some projects our experts have worked on:
- Building custom interfaces to move large amounts of data efficiently between applications
- Creating Grafana dashboards for quick and easy visualization of data points
- Developing scripts to connect external APIs with more heavy-duty platforms like Microsoft Azure
- Debugging mobile apps involving fishing
- Integrating AI capabilities into online shops
- Automating regression tests so developers can work faster and more accurately
No matter what your business needs are in terms of API development, our expert freelancers are ready to take on the challenge and provide support whenever you need it. With expertise in debugging applications and web development, you're guaranteed to find the right developer for your project! So why wait? Post your project today at Freelancers.com and reap the benefits of working with an expert API Developer now!From 180,405 reviews, clients rate our API Developers 4.87 out of 5 stars.
Hire API Developers
Powerful scraping Python API for Linux - I am looking for a Python developer to create a powerful scraping API specifically for Linux. - The API should be able to scrape data from specific websites that I will provide. - I only need the data to be scraped and no further processing is required. - The scraped data should be stored in a database of my choice. - The ideal candidate should have strong experience in Python programming, particularly in web scraping. - Knowledge of Linux systems and database management is also required.
Hello, and thank you for taking the time to consider my project! I am looking for an intermediate Python Developer to complete some work that I have in the pipeline. The specific Python skills required for this project are API integration, and no specific framework or library is needed.
I'm going to build a mobile application that allows my customers to exchange their betting currencies(1XBET, LINEBET, BETWINNER, PERFECT MONEY) from or to local or fiat currencies using my application with the help of MobCash API. So what am looking for is a MobCash API that allows me to send money from my account to a user using the API.
Copy-pasted bids will be rejected. We are working on a project where we have a printer(USB printer) and we want to make it wireless. So essentially we are looking to build a system that can be connected to the printer on the USB port which will do all the mods. We are open to suggestions. Operation: This system must show up as an air printer on phones and computers. the way it does for actual air printers. Once the user sends a print command to this air printer, the system must receive that and send that file to a server, AWS or anything else that can work for 1000 devices without an issue. Once the server receives the file, it must be able to make some changes to the file, mostly the pdf/image would be cropped and rescaled to a preset dimension. Once this is done, the server sends this c...
I'm looking to create code in Google AppsScript that uses OAuth to interact with the API for our door locks. At this stage, all I want it to do is use a list of user identifiers in Google Sheets to update those users' access codes and then export the new codes to the same Google Sheets file. The API documentation is here:
I am looking for a developer with experience working with APIs to connect our vacation rental system (which is made in Laravel) to using the API. The ideal candidate will have the following skills and experience: - Experience working with APIs, specifically the API. - Ability to complete the integration within a 3-4 week timeline. - Knowledge and understanding of integrating availability and rates, content, photo and get reservation functionality. If you meet these requirements and have the necessary skills and experience, please submit your proposal.
The project can be finished by delivering 1 desktop app for 2 functionalities or if its easier 1 app for each of the functionalities. Attachment has all the details needed. - The app should be able to handle HTTP and also selection of an USB Security token and POST requests for seamless communication. - The desktop app needs to be completed within 1 week. - Ideal skills and experience for this job include expertise in desktop app development for Windows, proficiency in communication protocols, and experience in handling HTTP and POST requests.
I am looking for a skilled Flutter developer to create a social wishlist site. The site should allow users to create wishlists and share them with others. Users should also be able to follow other users' wishlists. Design/Scope of project/Functionality that must be supported: Timeline: The project should be completed within 1-2 months. Please use the sigma file to estimate effort/pricing. The SRS document might contain fewer features than shown in the FIGMA file. Ideal skills and experience: - Experience with Flutter development - Proficiency in creating social networking sites, API integrations, and payment platforms. - Strong communication skills to ensure timely completion of the project
We are seeking a Freelance API Integration Programmer with experience in integrating APIs to integrate the API of a website. Fluent English communication skills are essential. Job Description: Are you a skilled programmer with a knack for integrating APIs seamlessly? If you have experience in API integration and are ready to take on an exciting project, we want to hear from you!
I am looking for a skilled wordpress developer who can integrate Intact Xline software with Woocommerce plugin with API to manage inventory, update inventory and rest of the required things.
Please indicate if you can carry out the request. I want to be in control of the API number, and not rely connecting via a Business Service Partner. (BSP)
I am looking for an experienced programmer to help me improve and scale a python bot. Specifically, I need assistance with speed optimization and the implementation of error handling and debugging features. Additionally, I am seeking additional functionality to the overall project. My current scale is small, doing less than 1000 tasks per day, although I wish to significantly increase this to more than 10,000 tasks per day after the improvements have been made. If you are confident in your abilities and can help me reach this goal, then I would be excited to hear from you. It's a selenium bot and looking to connect to a few api. Looking to: - Threading - Headless - Improve speed - Reduce resources usage
We are looking for a full stack dev for ongoing work. Our goal is to provide this basic API project as a test to see how you do. This project will be for one aspect, google conversion tracking. Overview: ------------------------------------------------ When a conversion event occurs, we will post the event (purchase, addtocart, etc) to our new webhook system. The system will then lookup the correct conversion even and google account to post the data to. All responses, success/partial/failure will be recorded so we can fix the issues on on going basis. This will require a basic password protected web gui to view the tables, inbound webhooks, outbound api requests, responses, etc. Sample webhook (broken up to make easier to read) we might post to "" : ---------------------------...
I have several problems in a custom made plugin, which means functions not working right on frontend. The site is a football statistics website: Plugin is made with PHP and JS. Also we have several cronjobs running daily and updating through API. After fixing the problems I want to know who can optimize the code / setup, since I guess threre are a lot of bugs and the cronjobs often stops and not getting finished (most likely because timeout or to much data). Right now I have list with 4-5 task, which needs to be fixed asap.
I'm looking for an expert-level algo trading strategy developer for Qlymp Trade to help me with my personal project. This will involve developing and implementing a set of algorithms to achieve my desired objectives in trading securities. My target market for this project will be related to composites, including stocks, forex, and cryptocurrencies. This project requires an experienced freelancer who is well-versed in developing trading strategies based on data and who also possesses a good understanding of trading best practices. As such, I'm looking for someone who can provide exceptional solutions and help me meet my trading objectives.
I am in need of a developer to connect an API to my system. I do not have this API set up yet, and need someone to do it for me. We print on clothing and we need to connect our SHOPIFY site to our supplier's API in order to verify "live" the quantity of stock in their warehouse for each product (e.g. black shirt size Large > current availability 100 pieces). Furthermore, we need our site not to make products with quantities read by the supplier equal to 0 available for purchase. We need the job completed within a month. If done well, there may be potential for future work related to this API. Attached are instructions from suppliers on connecting to their platform.
I am looking for an experienced Flutter developer to create an app for redeeming vouchers on both iOS and Android platforms. UI Design: - The client already has a design for the app, so the freelancer will not need to design it from scratch. Features: - The app should have QR code scanning functionality for redeeming vouchers. - Login and Authentication - Full and/or Part-Redeem of any/all supported products - Identify/Scan Product via QR/NFC-Read or Manual Alphanumeric code entry - Display the product scanned - Voucher Redemption - Redeem Confirmation Ideal Skills and Experience: - Proficiency in Flutter development for both iOS and Android platforms. - Experience with integrating QR code scanning functionality into mobile apps. - Knowledge of user authentication and registration pro...
This is a project that is meant to manage team and marketing systems. To track sales and invoices. To maintain reports that we can download. The user side will be a app. Staff can access the app and can onboard/create their junior staffs. Staff can create students. Staff can see all other staff that are under him. When a staff creates a junior staff. There is a onboarding charges that will allow us to create the ID cards and other assets that are needed for them to start working. So when a staff creates a new junior staff they have to first make the payment using the app. And submit documents for proceeding. After that if the admin approve the onboarding he will be appointed in the designation. The admin side will be a website. The admin can create team, delete user, manage invoices an...
Your goal will be to analyze a specific POST Request from LinkedIn's mobile-app (not the browser) and find a way to trigger that request from any backend server. To apply: - You're capable of analyzing your mobile phone network traffic - You understand APIs very well. More details: The job consists in analyzing the POST request that happens when you send a voice note using the LinkedIn mobile app and try to reproduce it via Postman using any audio file. You will be paid on successfully completing this task. We need it as soon as possible (in the next couple of days). I will work with multiple people and pay the first person that can solve it. You won't have to share any code with me or solution, you can let me know when you've found the solution and I will ...
Receive phone calls (with the api of Twilio, or Vonage, Telnyx, etc) for payment and the clients Pay with with Stripe or Paypal online to call at these virtual italian phone numbers Hello! I just need to set up a buy-form (to insert into a wordpress webpage) that permits me to pay in advance some credit to call some Italian phone numbers (landline or mobile is not important, the cheapest would be the best.. so for example a virtual italian phone number that cost 3 euro monthly, is better of a number that cost 30 euro monthly, also because I will need to configure multiple numbers, at least 4-5 and in future maybe more.. ) and the callers has to pay in advance (with paypal or stripe) the minutes to can call. When pre-paid the credit ends, then the phone call ends too or the credit would Se...
I am looking for a freelancer who can help me with a project that involves barcode and data storage in the barcode. The project requires the following skills and experience: Type of Barcode: - QR Code Linked Data: - Other Data (not a website URL or text) System for Reading and Interpreting Barcode Data: - Yes, a system is required to read and interpret the barcode data Ideal Skills and Experience: - Proficiency in working with QR Code barcodes - Experience in storing and retrieving data within a barcode - Knowledge of barcode scanning systems and technologies - Strong understanding of data storage and interpretation methods If you have the required skills and experience, please reach out to me with your portfolio and relevant project examples. I am looking forward to collaborating wit...
We are looking for a competent flutter developer who can contribute to our ad-hoc solution on a freelancer basis. The typical engagement would be for 1 to 1.5 months ranging 20-30 hours per week. The ideal candidate should have: 1. Proven experience in designing web model of the Flutter 2. Integrations using Rest API 3. Good understanding of UI & Animations. 4. Go-getter attitude to design solutions on the tasks 5. Prideful ownership of his work. The objective here to develop a marketing platform for a client. More details to be shared post first connect. Interested candidates feel free to apply.
I am looking for a Symphony developer who can help me build a new feature for my project. The project is looking for a commitment of 1 to 1.5 months approx 20-30 Hours work in a week. The engagement if fruitful, more rewards to come as additional incentives e.g. delivering the project well ahead of timeline. Specific requirements for this project include: - Building a new feature in PHP framework (Laravel or Symphony). - He should be fluent in working with MySQL as well. - He should be able to assist in creating software back-end, although we have one software that can be used to pickup code of the features from. Ideal skills and experience for this job include: - Strong proficiency in Symphony framework - Experience with building new features and integrating technologies and framework...
NO COMPANY BID, ONLY BID YOUR FINAL PRICE I DO NOT WANT TO NEGOTIATE ON PRICING. We are actively seeking a talented Python developer to lead the development of a Face Matching Detection API system. This project involves designing and implementing robust face detection and recognition algorithms, creating a secure and scalable API, and delivering comprehensive documentation. Key Responsibilities: Develop face detection and recognition algorithms. Design and implement a RESTful API for face matching. Ensure the security and privacy of user data. Create documentation for API usage and deployment. Collaborate with the team to meet project objectives. Requirements: Proficiency in Python and relevant libraries (OpenCV, TensorFlow, Dlib). Experience in image processing and face recognition. S...
I am looking for someone who can help me to finish the project. 85% of the codebase is written, just need to connect frontend and backend and make sure everything is working as intended. Frontend is in React and backend is in Python. Objective Develop an application that generates blog posts based on data retrieved from a Google Spreadsheet, utilizing the OpenAI API to create content according to specified instructions, and then compile the generated content into a Google Doc. The frontend and backend were somewhat written, but the app is not functional yet - the backend and frontend have to be connected - so the developer has to go over the app's flow and ensure that everything is working as intended. More details are here: Before starting the project, I'd like to know the ...
I am looking for a freelancer to configure a payment gateway with WHMCS. Payment Gateway: Tap Skills and Experience: - Experience with WHMCS and payment gateway integration - Knowledge of payment API - Familiarity with web development and WHMCS Application Requirements: - Please include past work and experience related to WHMCS and payment gateway integration - Detailed project proposals are not required Timeline: - 1 Week
NO PLACEHOLDER BIDS! NO PLACEHOLDER BIDS!! NO PLACEHOLDER BIDS!!! Hi there, I need a MERN developer, who can build a business phone app using the VoxImplant  Platform APIs & SDKs. The app will have a simple dashboard, where each app user, who is a site owner, can: 1- create an account ~ we will use secure code/pin, no password; 2- subscribe to a monthly payment plan ~ we will use Stripe ~ 85% COMPLETED; 3- buy a mobile number ~ we will use VoxImplant Platform APIs & SDKs; 4- configure the number to receive/make calls & send/receive texts ~ we will use VoxImplant; 5- track number activities i.e. total calls, made calls, received calls, etc.; * I am looking for a full-time freelancer, who can complete the account parts in 2-3 days and the dashboard parts in 3-4 days and the...
We want to develop an application to monitor the filesystem and upload changes in txt files to some APIs that we have already developed. Detailed scope: - Develop electron application (meant to work in windows and mac) that monitors the filesystem, and uploads the txt files found to an API service that we’ll provide to you. - The application has to upload entire txt files when it finds them, but also upload any new lines found in the files. - The application needs to keeps track of the files already uploaded, and also of the number of lines uploaded for every file, to avoid uploading the same information multiple times. - We need to give the user an option to configure the folders he wants to track. He can choose any number of folders, and the application needs to keep track of all t...
Hello Dear Freelancers, i want to add proxy in my avatar finder on steamcommunity , i want to send more api request on steamcommunity and get more users , a lot of people try to do it but cant finish , so i would like to give you award since i will see that everything work in my pc
I am looking for experienced Revit API developers/freelancers. Skills:- - Revit API - C#, .net (mandatory) - WPF Tasks: - Creating custom Revit add-ins - Providing suggestions and guidance for the add-ins' functionality based on my general idea Requirements: - Proficiency in Revit API development, atleast 1year experience. - Having good knowledge of C#, .net framework, WPF. - Experience in creating custom Revit add-ins - Strong troubleshooting skills for existing scripts Timeline: - The project needs to be completed within 1-3weeks If you have the necessary skills and experience in Revit API development, please contact.
Нужен бот для сайта который будет мгновенно покупать заданные мной вещи. Обьяснение что и как. На сайт в 10:00, 11:00 и тд (каждый час дня с 00:00 до 24:00) поступают новые предметы с ботов, у каждого вида предмета есть своя страница, нужно моментально сканировать наличие вещей в 10:00, 11:00 и тд и моментально покупать их, т.е. эти действия должны производиться в течении нескольких секунд после того как предметы поступили на сайт. Важная часть это время покупки, т.к. буквально за секунд 5-10 предметы скупают другие пользователи. Так же нужна функция чтобы я самостоятельно мог добавлять и удалять тот или иной предмет из списков бота. Все остальное в лс