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!

Dari 176,261 ulasan, klien menilai API Developers kami 4.88 dari 5 bintang.
Rekrut API Developers

Filter

Pencarian saya terakhir
Filter menurut:
Anggaran
hingga
hingga
hingga
Jenis
Keahlian
Bahasa
    Pernyataan Pekerjaan
    39 pekerjaan ditemukan, seharga USD

    I am looking to build a very basic website that summarises documents using the OpenAi api plug in.

    $576 (Avg Bid)
    $576 Rata-rata
    77 penawaran

    We are having an application where were using a feature to read emails from IMAP, email are hosted with office 365. Now Microsoft has stopped supporting IMAP and instructed to only use OAuth2. We are looking for a developer who is skilled in OAuth2 and fix the functionality to read emails.

    $95 (Avg Bid)
    $95 Rata-rata
    6 penawaran

    i have this api i want to integrate with my wordpress website i need you to show me how i can do it this is the documintion

    $67 (Avg Bid)
    $67 Rata-rata
    15 penawaran
    Mobile pos App 6 Hari left

    2. The system is like a point of sale but may not have all functions of a pos just a few functions of a pos . l have a video showing the presentation but unfortunately here you cant upload a file bigger than 25mb .

    $624 (Avg Bid)
    $624 Rata-rata
    54 penawaran
    Build me a Website -- 2 6 Hari left
    TERVERIFIKASI

    I'm looking to hire an Django and Mongo DB expert who can able to write SEO-friendly Blogs . I want to hire for a full-time role. Please bid with your portfolio if you're interested. I have domain and ubuntu server. Django, Mongo DB, API, Git

    $248 (Avg Bid)
    $248 Rata-rata
    17 penawaran
    Fix search issue in my flutter app 5 Hari left
    TERVERIFIKASI

    I have a search issue in my flutter application where I cannot search for services. The function used to work but it stopped working and I'm not sure what has made it so. The app has an API with a web portal. I would also like the search to be fast.

    $54 (Avg Bid)
    $54 Rata-rata
    40 penawaran

    I am looking to automate the selling/buying of manually entered options contracts based on a complex study.

    $2453 (Avg Bid)
    $2453 Rata-rata
    7 penawaran

    Looking to have a basic Order Entry Panel designed in Python. With trading, typically there is a built-in Order Entry panel. But due to the amount of processing going on with charts and data and indicators, the trading platforms that are currently being used are bloated and lagging. The idea behind this panel is to allow traders to use whatever platform they wish for their charting and analysis, but then they would enter the orders through this panel. This panel need to be light, thin, snappy, responsive and modern look. I have all of the CQG data API information and it will connect to AMP Futures broker. I will provide demo/test login once project is accepted. I have ideas on the layout and the logo and buttons have already been designed. But the most important part is to get this func...

    $582 (Avg Bid)
    $582 Rata-rata
    14 penawaran
    rest api for guns.com and other 5 Hari left
    TERVERIFIKASI

    These websites allows sellers to manage inventory with rest api My desire is to use the RestAPI to manage my inventory and possible orders Currently I manually create the product listings and when we sell on a website I have to manually remove from other websites. I do have my data in a sql database so I can assist with the data table but you will have to do the api I have no experience in that JIm

    $574 (Avg Bid)
    $574 Rata-rata
    46 penawaran

    So I have a running website and I am in need of API developers to write some APIS for this project. The website is built using PHP, Laravel. I do have mobile apps hosted in play store. I have made few enhancements in the website so I am looking for a API developer to write the APIS in postman. Need around like 5 APIS.

    $101 (Avg Bid)
    $101 Rata-rata
    20 penawaran

    Hi freelancer, I have nxtbanking mobile recharge api, i need to integrate this in my existing portal, If you can integrate this, let me know.

    $80 (Avg Bid)
    $80 Rata-rata
    11 penawaran
    IOS - VTD Manager app 4 Hari left
    TERVERIFIKASI

    I require a IOS developer to create a fairly simple app which interacts with multiple APIs Extra info in the attached files which should be read before quoting. More detailed explanation file added 19th March - IOS app more detailed

    $416 (Avg Bid)
    $416 Rata-rata
    25 penawaran

    Greetings everyone. We are looking for a freelancer with more than 5 years experience on the fields of Blockchain, smart contracts and Web 3. Requirements - Desing and Logo of platform - Smart Contract of Token (Tokenomics needed to be in logic of smart contract and the smart contract to have the staking logic too) - Integration of Metamask , Coinbase and Trust wallet - Connecting price from 20 different exchangers API (Selling Price - Asking Price - Average Price) - Users to be able to buy subscriptions to use the services. Subscription must be able to get paid through our token and through another 10 tokens we will share with you - Creating Admin Panel from where we can do the following : backend we must connect trading view chart and from admin us to be able to draw technical...

    $5203 (Avg Bid)
    $5203 Rata-rata
    12 penawaran
    Data Lake 4 Hari left
    TERVERIFIKASI

    I would like to build an API Data Lake platform with transformation and data integration services.

    $543 (Avg Bid)
    $543 Rata-rata
    14 penawaran
    build fintech news site with api 4 Hari left
    TERVERIFIKASI

    I'm looking to hire a Freelancer to build a new fintech news website with an existing API. I have my domain and hosting already set up and the API available for integration. Additionally, I'm looking for the website to be able to host content from multiple sources if possible. Basically, I'm looking for a freelancer who can put together a great website for me, integrating an existing API and allowing for content from multiple sources. If this sounds like a project you'd be interested in, please contact me!

    $822 (Avg Bid)
    $822 Rata-rata
    118 penawaran

    Hello, i´m looking for a programmer who can write an upload / download tool for usenet. (binary newsgroup poster). usability, stability and security should come first. please keep in mind that changes may still be made during testing! My Requirements are: -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!!) -C# -NNTP (Network News Transfer Protocol) -modern GUI and a nice logo :) -source code, commenting on the source code properly ! -expandable ! -API usage -work with rss feeds -Periodic check if files still complete -option for hidden autostart -The program is supposed to download a certain sort of links like url use with an b...

    $184 (Avg Bid)
    $184 Rata-rata
    12 penawaran

    Please be careful before you knowledge the In-games ID Platform. More precisely, you can add the necessary info manually, but it is not possible for it to be generated automatically with some API integration using an in-game ID. Not without custom coding, I'm afraid. Since custom coding isn't included in theme support service, you would need to either find a freelancer to custom code this functionality for you or do it yourself, if you have the sufficient coding experience required. in-game ID when they sign up example and they can detectable in-game id cross-platform integration so I can be building tournaments and etc PSN ID: MrPrinceAce Xbox ID: MrPrinceAce Admin backend I can set up the field In-game IDs: Steam ID, uPlay, Xbox Live, Nintendo ID, PSN ID, etc Applica...

    $208 (Avg Bid)
    $208 Rata-rata
    6 penawaran
    shipping website like stamps.com 3 Hari left
    TERVERIFIKASI

    clients must create their accounts on the website by filling the online form and upload their IDs we have to verified on our end and activate their accounts. they can get the shipping labels ( United State Post Office, DHL, ups … ) from the website which is connected via APIs to the couriers. Examples: ….. features: saved shipping presets history report

    $631 (Avg Bid)
    PK
    $631 Rata-rata
    64 penawaran

    Need an engineer who is well versed using OpenAI And hugging face API to build fine tuned models with proprietary data.

    $24 / hr (Avg Bid)
    $24 / hr Rata-rata
    22 penawaran

    I am looking to get a project developed end to end which fulfils everything required from - pre-sales - RFQ submission - including finding hotels, ground transportation, events, food and activities via direct contracting or via DMC routes. - quotes - closures - post sales - during the movement We would like to keep it interactive like a social media interactive platform, informative and covering other important aspects to keep a group of people from 100 to 2000 in close link. Sample website (although nowhere close to what we want as they look like build by basics and some 10 years ago) are - ;

    $1503 (Avg Bid)
    $1503 Rata-rata
    10 penawaran

    It is a desktop application which could be described as a 'marriage between a graphics calculator and a spreadsheet' to assist students of data science projects. They load data into the internal SQLite database manually with DB Browser for SQLite or by writing custom Java code connectors that download data from the network. Then they use the data inside the internal SQLite database to create new results by writing custom Java code batch formulas. Afterwards they visualize all the data with 3D plots. You just have to provide a sustainable data-agnostic framework for years to come and do not need to know about all the details of data science. ( You will be contacted to apply for the job and will be given more detailed information you are expected to render into a brief overview ...

    $199 (Avg Bid)
    $199 Rata-rata
    23 penawaran

    Hi, I'm looking for a Web developer for a one year long term project or longer, that includes CMS development for Joomla and WordPress. From creating components, modules, plugin, templates to other ongoing tasks. Price will be on monthly level

    $773 (Avg Bid)
    PK
    $773 Rata-rata
    26 penawaran
    Need a Custom API Development Expert 2 Hari left
    TERVERIFIKASI

    Requirement: Custom API Creation Implemented at : PHP-based Custom Warehouse Platform for which API needed : Amazon, Bol, Exact, Open cart and many more. What data we need fetch : We need to get orders and order details in real-time. As client has WAREHOUSE so he wanted his end client's store ORDER get auto synch with the help of API Who can Apply : Those who have similar experience and having expertise in creating connection API Do we need 1 Company/Person do all API : If yes, its GOOD, if not even any 1 API can be created that also good to go. SUMMARY : We are seeking an expert Connector API Developer who specializes in creating bridging APIs between a custom warehouse and eCommerce stores. The ideal candidate should have a deep understanding of RESTful API design principles ...

    $369 (Avg Bid)
    $369 Rata-rata
    30 penawaran
    OKX API , C# Project 2 Hari left
    TERVERIFIKASI

    There are project with open source Tasks : 1-Install it and run project with any action like check balance ets .. 2-Page to Add multi api for several Master account and every Master(S) has a Sub-accounts(S) . after that i have detiles how we will used this api

    $176 (Avg Bid)
    $176 Rata-rata
    23 penawaran
    Data Engineer/Python API Developer 2 Hari left
    TERVERIFIKASI

    Develop python APIs, create lambda functions and Glue jobs on AWS, CICD using jenkins, Airflow 10-15hr/week

    $11 / hr (Avg Bid)
    $11 / hr Rata-rata
    9 penawaran

    We would need to be able to read/write data from a database in Business Central On-Premise using their APIs. We have the location of your server where the business center is located as well as your server instance and the environment that would be the test environment. I understand that we would need more data such as the APIVersion, APIVersion, APIGroup and EntityCaption or EntitySetCaption in order to have the complete url from which to obtain the data. On the other hand, in terms of authentication, they have provided us with a username and password, but I think we need a web service key to be able to authenticate ourselves.

    $167 (Avg Bid)
    $167 Rata-rata
    27 penawaran
    AI expert needed 1 hari left

    A project where we use external APIs(including openAI) to curate content across the internet and build a freemium product. Needing someone who can work on equity basis and have skin in the game. You will be focusing on embeddings and other APIs. We have in-house developers to take care of everything other than AI/ML part of the project

    $386 (Avg Bid)
    $386 Rata-rata
    9 penawaran

    Automated Video Creation. The following process describes creating an automated photo slideshow video with images generated by a Discord image generator, based on custom input texts, and posting the resulting videos to YouTube and Instagram:

    $518 (Avg Bid)
    $518 Rata-rata
    10 penawaran

    The following process describes creating an automated photo slideshow video with images generated by a Discord image generator, based on custom input texts, and posting the resulting videos to YouTube and Instagram:

    $173 (Avg Bid)
    $173 Rata-rata
    6 penawaran

    1: Integrate the ChatGPT API into our existing Microsoft Teams environment via the Chat feature. (not Channels) 2: Enable users to initiate a chat conversation with ChatGPT within Teams. 3: Leverage existing apps or plugins wherever possible. 4: Provide an overview of findings, including any additional subscription costs that will apply to the solution, before going ahead. Please apply if you have tons of experience in ChatGPT API integration.

    $22 / hr (Avg Bid)
    $22 / hr Rata-rata
    13 penawaran

    Please apply if you have tons of experience in ChatGPT API integration.

    $17 / hr (Avg Bid)
    $17 / hr Rata-rata
    9 penawaran

    I need 9 square products to be implemented as subscriptions. The subscription needs to trigger to be in the fulfilment queue much like a one time product purchase for shipment. Looking for someone with Square experience as subscriptions are not a readily made option on the product profiles on Square. This is in the Square platform (, not Squarespace.

    $22 / hr (Avg Bid)
    $22 / hr Rata-rata
    42 penawaran

    Aplicación para técnicos de mantenimiento, funciona como agenda de trabajo, en el cual se podrá apuntar tareas de reparación pendientes y también tener un calendario con día y hora de las inspecciones del centro de trabajo. Contendrá un historial de las reparaciones finalizadas anteriormente. La aplicación será desarrollada de forma nativa en Android utilizando lenguaje Java y consumiendo una API para temas de backend. Si es posible me vendría tener el Código fuente de la aplicación y de la API, así como también diagramas de entidad relación y diagrama de clases

    $467 (Avg Bid)
    $467 Rata-rata
    20 penawaran

    I have a set of ebooks and a chatbot has to be created to give read the ebook files and generate output for queries. reference - The output has to be like API and it will be hosted in an API platform. Later I will use the API in my website.

    $120 (Avg Bid)
    $120 Rata-rata
    9 penawaran

    I need a solution where I can have newsletter subscribers added to my Selzy email lists without Double Optin. The API Info I have been provided by Selzy support is for the subscribe method at My website uses Wordpress with the Form builder Forminator. The solution would need to be; 1. provided for me to self-install on my website. 2. universal to enable me to use it for any other subscription form I may set up on Selzy, or have the instructions on how I can do that myself.

    $37 (Avg Bid)
    $37 Rata-rata
    8 penawaran

    Necesito alguna persona que me cree un bot que conecte chatgpt con twitch, se creará un personaje virtual que deberá contestar las preguntas de chat y jugar a juegos, la IA aprenderá poco a poco a jugar sola a juegos sencillos. Agradecerá las subscripciones y interactuará con el chat.

    $157 (Avg Bid)
    $157 Rata-rata
    8 penawaran
    NodeJS with MySQL 7 jam left
    TERVERIFIKASI

    We need ~15-20 APIs to be created. The database is already present for few and needs to be made for others. More information is to be shared after selecting the freelancer. The work needs to be started right now itself. It is a time-bound urgent task to be done as soon as possible.

    $49 (Avg Bid)
    $49 Rata-rata
    20 penawaran

    The project requires experience of SDN, Mininet, RYU python application development. This is the first of multiple tasks we need to get done (expect more work if you perform well). Details about the project will be provided to interested candidates. This project is required to be delivered in 2-3 weeks.

    $74 (Avg Bid)
    $74 Rata-rata
    6 penawaran
    Explicit Filtering Phase -- 2 Berakhir left
    TERVERIFIKASI

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

    $470 (Avg Bid)
    $470 Rata-rata
    29 penawaran

    Artikel yang Direkomendasikan Hanya untuk Anda

    If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
    11 MIN READ
    Python runs some of the biggest websites on the net. Here’s how to create a website using Python, one of the easiest programming languages around.
    8 MIN READ
    You can build a stunning website on the Wordpress platform. Here is a collection of 10 sensational Wordpress designs to ignite your creativity.
    7 MIN READ