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
  • Working with Javascript to allow websites to access external information relating to weather conditions
  • 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!

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    36 trabajados encontrados, precios en USD
    Fix my video summary site -- 2 6 días left

    also both are mine , they are both on digital ocean . they used to summarize youtube videos , the one on the right is using libraries and one on the left using chatGPT i hit my hard limit on openAI so the left would not work but even before had issues . here is a discussion with a coder maybe makes it more clear Süleyman coder chatgpt AI freelancer, [2023-05-23 2:41 PM] Unfortunately, it’s not possible to change the Droplet IP address however this is a workaround. To receive a new IP address, take the following steps: - Create a snapshot image of your Droplet from the control panel - Create a new Droplet from your snapshot - Move DNS from your original Droplet to the new Droplet - Destroy your original Droplet Süleyman coder chatgpt AI freelancer, [2...

    $42 (Avg Bid)
    $42 Oferta promedio
    7 ofertas

    EDIT : I would like to consider only bids less then 100$ as its a simple program Project: A particular discord channel will send message like this: Eg: "5/19 AMZN 120c" Meaning buy Amazon calls expiring on 5/19 at 120. Just need to parse this stock symbol (Amazon here) from discord and trade this on any stock exchange API which is supportive (could be Robinhood, Webull or Alpaca etc.). We only majorly need stock symbol and trade options with it as mentioned either calls or puts. Also sell the option once alerted like this: "All out AMZN" Project would be marked complete once we can see that the code is working and tested and able to trade successfully with API. Also options trading should work with it not just stocks. This is for personal use only and its for project ...

    $288 (Avg Bid)
    $288 Oferta promedio
    9 ofertas

    I am looking to hire a professional programmer to create a large-scale proxy server with dynamic authentication via API, TCP/UDP, data packet inspection (DPI), and 400k+ maximum TCP connections support per server. The main purpose of this proxy server will be web scraping, so the ability to filter content and scrape unattended internet resources is essential. In addition, the authentication method for this proxy server will be custom API integration. Therefore, thorough knowledge of API services is an absolute must. Finally, the preferred programming language of choice for this project is C++ / Golang or anything that can manage to run 400k TCP connections. Currently using: More detailed requirements document: If you feel like your expertise and skill set are up to the challenge of de...

    $5208 (Avg Bid)
    $5208 Oferta promedio
    13 ofertas
    Nifty Data Sheet 6 días left

    I am looking for a freelancer to create a Nifty Data Sheet in Excel. The purpose of the sheet is to perform calculations based on formulas for financial decision making. I will provide specific data and formulas to be included. The ideal candidate should have experience in creating complex financial models and be proficient in Excel. The data sheet should be user-friendly and visually appealing. The freelancer should be able to work independently and meet tight deadlines. Communication skills are also important to ensure that the final product meets my expectations.

    $93 (Avg Bid)
    $93 Oferta promedio
    30 ofertas

    I am seeking an experienced Python developer to customize the user interface (UI) of Dreamstudio, an image editor that utilizes an API. The project involves forking the StableStudio GitHub repository and reskinning the UI according to a provided template. The ideal candidate should have strong Python proficiency, experience working with APIs, familiarity with image editing tools, and the ability to implement basic functionality for a WebApp. Good communication skills are also essential for smooth collaboration. The project timeline is around 4-6 days,

    $157 (Avg Bid)
    $157 Oferta promedio
    23 ofertas

    We are a manufacturer in the food industry, catering to a diverse range of retail outlets with an assortment of products. Our company is seeking an experienced IT Specialist/Coder to develop a custom module for our Odoo ERP system that would integrate the functionality of an existing AppSheets application. The goal is to replicate all functionality of the AppSheet application into a custom Odoo module. Our orders are received via EDI and are processed into our existing Odoo system. The custom module should effectively manage these orders and plan our production based on the demand, resources, and time constraints. Our orders are received via EDI and transferred into our Odoo ERP system. The custom module should effectively manage these orders and plan our production based on the demand, r...

    $5000 - $10000
    $5000 - $10000
    17 ofertas
    Sales rep mobile App 5 días left

    The app will be used by sales rep to carete Customer visit Sales order Sales return Customer payment There are some features should be taken into account like Locations tracking Print to Bluetooth thermal printer Send invoices to what's app Send feedback to developer We already have a ui/ux for the app so please ask for it for more details.

    $608 (Avg Bid)
    $608 Oferta promedio
    67 ofertas

    I am looking for a skilled Node.js developer who can create a WebSocket API for my IoT devices to interact with my server. The ideal candidate should have experience in developing APIs for IoT devices and be familiar with WebSocket protocol. The device has a) predefined key<->values and workflows/ request-response-sequences b) as well as a .NET / C# implemented solution, ==> But I need to have it a) run on a Linux machine. (Linux / Ubuntu with nodejs server is up and running, connection to the device established, and documentation for the device/ WebSocket-API-KeyValues is available.) b) store the values provided by the WebSocket-connection in a use-case-related way on mariaDB c) optionally / "nice to have": using docker / docker-compose Requirements: - Basic WebSoc...

    $22 / hr (Avg Bid)
    $22 / hr Oferta promedio
    40 ofertas
    Online travel website 4 días left

    I am in need of a skilled developer to create an online travel website that caters to both business and leisure travelers. The main functionality of the website should be focused on booking accommodations, specifically hotels. And flight pooking Integrated api The ideal candidate should have experience in creating websites with booking systems and integrating payment gateways. Additionally, experience with designing user-friendly interfaces is preferred. The website should have the following features: - An easy-to-use booking system with real-time availability - Secure payment gateway integration - User accounts with the ability to save and manage bookings - Detailed hotel descriptions, including amenities and photos If you have experience in designing and developing travel web...

    $1245 (Avg Bid)
    $1245 Oferta promedio
    148 ofertas
    Algorithmic trading machine 4 días left

    I need an algorithmic trading machine that will able to trade: •Stocks/futures/options/fx •trade types: scalps, swings, short, long • add the ability to backtest the strategies, and alerts for the strategies •including trading strategies such as: ATM strategy for options, Spreads strategies for option, Greek strategies for options, Combined indicator strategies for stocks (SMA'S, EMA'S, MACD BOLLINGER ETC.) • I will have the option to chose the amount of risk in the trades, and another option that the machine could do it automatically if I didn't chose any risk amount. • the machine will also include a Stock screener, that the Algo could automatically scalp and trade stocks that look good from the screener (before breakouts e...

    $4207 (Avg Bid)
    $4207 Oferta promedio
    15 ofertas

    Hello, I am looking for a programmer for regular collaboration, who can write an upload/download tool for usenet in the first step. Please keep in mind that changes can still be made during the testing phase! Please make realistic offers and no fake offers where the price multiplies afterwards. Thank you! My Requirements are: NNTP (binary newsgroup poster). Ease of use, stability and security should come first. -Combine the settings of the programs mentioned (ngPost, Nyuu, NewsUP, SabNZBd) -download functions like the program "sabNZBd" -for Windows (With a proper installation routine and as an .exe file!!) -Python -NNTP (Network News Transfer Protocol) -modern GUI and a nice logo :) -source code, commenting on the source code properly ! -expandable ! -API usage -work wi...

    $170 (Avg Bid)
    $170 Oferta promedio
    14 ofertas

    build website , skills: html, php, api, javascript.

    $1085 (Avg Bid)
    $1085 Oferta promedio
    202 ofertas

    I am looking for a Big Commerce developer who can customize my online store based on my specific requirements. The focus of this project will be on enhancing the functionality and features of the store. I have a detailed list of the desired features that I would like to be implemented, and I am looking for a developer who can work on going based. Ideal skills and experience: - Strong experience with Big Commerce customization and development - Able to change some functionality. - Knowledge of HTML, CSS, and JavaScript - Ability to work efficiently and meet deadlines. -Our store is live so need to work on sandbox first

    $30 - $250
    Sellado Acuerdo de Confidencialidad
    $30 - $250
    15 ofertas
    Smiirl custom counter / Linkedin 4 días left

    The need : I have a Smiirl counter plugged to a company's Linkedin Page, but the count update is not automatic. Ideally, when someone follows our Linkedin Page in front of the counter, they should see tiles flipping and counter updating in the following 15/30 seconds. Following Smiirl help page, I need to create the JSON URL that will link our company’s Linkedin page to the custom counter. This URL should also be usable with other custom counters that we’ll setup in our other buildings (also linked to the same Linkedin page). The job : I would like to connect my Custom Counter Smiirl to Linkedin in order to display number of followers in real time. To do so the Counter needs to do a request to an endpoint (via HTTP/HTTPS). The output has to be in a JSON format and...

    $135 (Avg Bid)
    $135 Oferta promedio
    3 ofertas
    Urgency Linkedin API Project 3 días left

    Detail We are looking for an experienced developer to help us with an API Integration project. Your main responsibility will be to develop and implement an API that will allow us to extract and analyze data from LinkedIn. We need someone who is able to work independently and deliver high-quality results. Specifically, we want an API that can identify law firm partners that have moved law firms at least once and have been at their current firm for at least 3 years. We are essentially wanting to create a predictive model of law partners that are likely to leave their law firm in the next 12 months. To be considered for this role, you should be proficient in ChatGPT, API, Automation, and Web Crawling. Experience in Data Extraction, and Data Mining. Additionally, any experience with Open AI ...

    $503 (Avg Bid)
    $503 Oferta promedio
    28 ofertas

    Creating a website from scratch using reactjs and NodeJS

    $140 (Avg Bid)
    $140 Oferta promedio
    42 ofertas

    I'm seeking a freelance developer to assist me in integrating the VIN Audit API with Zapier for automating email communication. The goal is to send an email with a response PDF generated from the API. The API offers three services: Query a VIN for Records Generate a Vehicle History Report View a Generated Vehicle History Report The specific requirements for this project are as follows: Connect the VIN Audit API to Zapier to facilitate data retrieval and automation. Configure the API to query a VIN for records and generate a vehicle history report. Incorporate the functionality to send the generated report via email as a PDF attachment. Remote collaboration is necessary as I don't have a shared Zapier account. We can communicate and work together using Zoom or another screen-sha...

    $178 (Avg Bid)
    $178 Oferta promedio
    13 ofertas

    WIREFRAME ATTACHED I am looking for a skilled developer to build a trading tool that can place Stop Loss and Target orders using the IIFL XTS API's. The ideal candidate would have experience in Python programming language and be familiar with integrating APIs. Key requirements include: - Build a trading tool that uses IIFL XTS API's to place Stop Loss and Target orders. - Use Python programming language to develop the tool. - Ensure the tool is user-friendly and easy to navigate. - Complete the project within the given timeframe.

    $400 (Avg Bid)
    $400 Oferta promedio
    17 ofertas

    Attached is the entire scope of work in Portuguese - br Attached is the entire scope of work in Portuguese - br Attached is the entire scope of work in Portuguese - br I am looking for a skilled developer to create an advertisement system for my platform for Twitch streamers. The main goal of the system is to generate revenue for the streamers. The system will display banner ads, and I would like them to be targeted by audience interests. Requirements: - Strong experience in developing advertisement systems - Knowledge of Twitch platform and its API - Ability to target ads by audience interests - Excellent communication skills to ensure the system meets my requirements I am looking for someone who can deliver a high-quality system that is user-friendly and reliable. The ideal candida...

    $539 (Avg Bid)
    $539 Oferta promedio
    15 ofertas
    Onix Book Data 2 días left

    Need some help with Power Automate Desktop and Online. Trying to set up an API with little understanding of how API's work. We do understand Power Automate well enough, but may need some quick help configuring that. Please read this documentation and tell me how to set up the API to get data on single EAN's/ISBN's. Thanks.

    $18 (Avg Bid)
    $18 Oferta promedio
    3 ofertas

    I have a wix store that's going to have almost 200 products on it with less than 10 manufacturers whose products were going to sell. I would like to have a api developed that will allow customers to purchase products on our site and will automatically then pay and update the manufacturer in real time. Thus eliminating the need to manually purchase products from these distributors.

    $2144 (Avg Bid)
    $2144 Oferta promedio
    53 ofertas

    We are looking for an experienced developer to help us with an API Integration project. Your main responsibility will be to develop and implement an API that will allow us to extract and analyze data from LinkedIn. We need someone who is able to work independently and deliver high-quality results. Specifically, we want an API that can identify law firm partners that have moved law firms at least once and have been at their current firm for at least 3 years. We are essentially wanting to create a predictive model of law partners that are likely to leave their law firm in the next 12 months. To be considered for this role, you should be proficient in ChatGPT, API, Automation, and Web Crawling. Experience in Data Extraction, and Data Mining. Additionally, any experience with Open AI would be ...

    $600 (Avg Bid)
    $600 Oferta promedio
    50 ofertas

    Looking for a freelancer to develop a Shopify to Google Data Studio / looker studio connector such that I can pull all Shopify orders data including order qty, value, products, traffic sources, etc. and show that in Google data studio. Need this for multiple Shopify stores so that the tool should be such that it can fetch data from multiple Shopify stores and showcase in its respective data studio report. Happy to see if you have an existing app which can do this. Please bid ONLY if you have some prior experience in doing similar projects.

    $388 (Avg Bid)
    $388 Oferta promedio
    8 ofertas

    We are looking for a Shopify custom app developer to streamline our internal processes. The ideal candidate should have experience in Shopify app development and be able to work within a 3-4 week timeframe. I have a detailed list of features and functionality that I would like to implement. The main goal of the custom app is to improve efficiency and productivity. The developer should have experience in Shopify API and be familiar with app deployment on the Shopify and be familiar with ShipStation API, Google Ads API, Shopify API and Grab data from XML feed. Looking forward to working with you.

    $19 / hr (Avg Bid)
    $19 / hr Oferta promedio
    92 ofertas
    Full Stack Dev -- 2 1 día left

    Looking for a dev to help with website,landing pages, web macros, CRM etc

    $16 / hr (Avg Bid)
    $16 / hr Oferta promedio
    137 ofertas
    React Frontend Developer 1 día left

    I am seeking a skilled React Frontend Developer to create a new website for me. I have a clear design brief and specific requirements for the design. The project's expected timeline is 3-4 weeks. Budget: $900 Ideal Skills and Experience: - Proficient in React.js and JavaScript - Strong understanding of HTML and CSS - use Bootstrap 5 with a clear project architecture (based on components) - Experience with responsive design - Ability to work with APIs - Knowledge of Git and version control - Good communication skills and ability to work in a team Responsibilities: - Collaborate with the team to develop the website based on the design brief - Implement responsive design - Work with APIs to integrate necessary functionality - Ensure code quality and maintai...

    $999 (Avg Bid)
    $999 Oferta promedio
    115 ofertas

    Looking to build a fairly basic options trading bot to automate what I currently do manually each day in my Interactive Brokers account. If you're capable and interested, I can give you more details via messages, but here's the general steps: 1) At the start of each trading day, open a new position. 2) Also stage two stop-limit orders for the hedge. 3) Rule Trigger 1: If price crosses below X, short 2 /ES contracts at price X. 4) Rule Trigger 2: If price crosses back, close /ES position. 5) Rule Triger 3: If price crosses above Y, buy 2 /ES contracts at price X. 6) Rule Trigger 4: If price crosses back, close /ES position. The goal being: The price should generally either always be within my position's "profit zone", or, should be nearly 100% hedged. I alr...

    $549 (Avg Bid)
    $549 Oferta promedio
    39 ofertas

    I am in need of a website that includes Telegram API integration. Specifically, I am looking for a chatbot feature to be included in the integration. I need this project completed as soon as possible. Ideal Skills and Experience: - Experience with website development and design - Proficiency in integrating APIs, particularly Telegram API - Strong knowledge of chatbot development - Ability to work efficiently to meet tight deadlines

    $510 (Avg Bid)
    $510 Oferta promedio
    41 ofertas

    Hi I have a set of APIs for an ecommerce project. I need to extract - Product APIs on a weekly basis. The product APIs is nested, need to extract it into an excel sheet SKU by SKu, record by record - Inventory APIs, need to extract and schedule Product inventory that are OOS in excel on a daily basis

    $350 (Avg Bid)
    $350 Oferta promedio
    43 ofertas

    Online Marketplace for Digital Goods I am looking for a skilled developer to Create an online marketplace and digital distribution platform for users to sell and distribute their digital products or services directly to consumers. Sellers can showcase and sell a wide range of digital content, including e-books, music, videos, software, artwork, consultation, services, license's etc. Platform should provide a secure, user-friendly, quick loading & lightweight interface for both sellers and customers. Sellers can easily create product listings, set prices, upload digital content files, provide delivery options via email or download links and customize their product pages. Customers can browse the marketplace, make purchases, analyze spendings and access their purchased digital con...

    $3941 (Avg Bid)
    $3941 Oferta promedio
    34 ofertas

    I am in need of a professional to assist me with my FastAPI project. Specifically, I require someone who is proficient in adding API documentation. The ideal candidate should have experience in using Swagger/OpenAPI and should be able to include testing and validation of the API endpoints. Other requirements include: - Familiarity with FastAPI - Proficiency in Swagger/OpenAPI - Experience in testing and validation of API endpoints - Strong communication skills - Attention to detail If you meet these requirements and are interested in this project, please reach out to me.

    $175 (Avg Bid)
    $175 Oferta promedio
    32 ofertas

    I would like to build an iOS app using the Screen Time API to restrict apps accordingly. I have made a good start on the views in Xcode. I need a bit more work to be done on the UI, the functionality needs to be built and the API set up. The user interface of the app is simple. However, please only apply if you are confident that you can work with the Screen Time API. A detailed description of the app, its views and how it should look (including screenshots) will be provided. Looking forward to hearing from you. Best regards, Ben

    $794 (Avg Bid)
    $794 Oferta promedio
    42 ofertas

    We have an online store based on Woocommerce ; We supply auto parts and we are searching for TecDoc API integration on WordPress . We already have the webstore and we have an API from TecAlliance. We need to upload the database on our websiteI and want the customer to have the choice of selecting the Make Model Year Engine and searching by Part Numbers for Commercial vehicles and by part number, vehicle selector (dropdowns) and VRM lookup for passenger cars. The product if returned it will display the following tabs that have been populated from the TecDoc Wsdl. Attributes, Items, Images, Cross References, Appropriate Vehicles, Technical Data.

    $286 (Avg Bid)
    $286 Oferta promedio
    28 ofertas
    Web based API integration 10 horas left

    A few APIs connected together. A detailed description will be provided to the selected person

    $168 (Avg Bid)
    $168 Oferta promedio
    27 ofertas
    Explicit Filtering Phase -- 2 Finalizado left

    Explicit Filtering Phase project as discussed in chat for phrase detection and resultant redirect.

    $470 (Avg Bid)
    $470 Oferta promedio
    29 ofertas

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