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!

จาก 171,898 รีวิว ลูกค้าให้คะแนน API Developers 4.9 จาก 5 ดาว
จ้าง API Developers

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!

จาก 171,898 รีวิว ลูกค้าให้คะแนน API Developers 4.9 จาก 5 ดาว
จ้าง API Developers

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    สถานะงาน
    54 งานที่พบ

    I need a clean, gap-free OHLC data set for the Nifty 50 index on a 1-minute timeframe covering 1 January 2020 right up to the end of the current trading day. I will supply an Excel template that already lists every required timestamp; simply populate the Open, High, Low and Close columns against each row. Key points • Source must be Zerodha only (Kite historical API or another Zerodha-backed feed). • No extra fields are necessary—just the four price columns. • Final delivery should be the same workbook returned to me in .xlsx format, ready for immediate use. Before we wrap up, I’ll verify the file for missing intervals, incorrect time zones (IST), or obvious outliers. Once everything checks out, the job is complete.

    $60 Average bid
    $60 การประมูลเฉลี่ย
    22 คำเสนอราคา

    I run a Shopify store that relies on the Appstle Subscriptions app. Everything works smoothly except for one critical point: the automatic discounts I set up apply perfectly to the customer’s first order, but vanish on every subsequent recurring charge. I need someone who really understands Shopify’s subscription flow and Appstle’s API/webhooks to: • Trace why the discount code (or automatic discount) is dropping off after the initial purchase. • Implement the fix—whether it’s a rules tweak inside Appstle, a Liquid/cart script, or a small piece of custom code—so every renewal reflects the correct, pre-configured discount without manual intervention. • Test at least two renewal cycles in a staging environment and walk me through h...

    $11 / hr Average bid
    $11 / hr การประมูลเฉลี่ย
    26 คำเสนอราคา

    I have an existing live project and I need help in setting up the WhatsApp Business API keys. Since long time my account is stuck in the "Review in Progress" status (almost 30 days) you dont have to do any integration with backend or anything. on screenshare just need to discuss how to resolve this issue which i am facing with the WhatsApp Business API

    $63 Average bid
    $63 การประมูลเฉลี่ย
    55 คำเสนอราคา

    I manage our university’s Student Information System and need a technically savvy partner to keep it running at peak performance while we expand its capabilities. Day to day, the work ranges from fine-tuning system configuration, maintaining a clean permission hierarchy, and automating routine admin tasks, through to digging into database queries when the system slows down or an integration drops data. You’ll be hands-on with: • System configuration & ongoing management • User account lifecycle, roles, and permissions • Reporting, analytics, and custom queries Current pain points I want resolved quickly: • Intermittent performance slow-downs during high-traffic periods • Data integration failures between the SIS and our LMS/HR platforms ...

    $68340 Average bid
    $68340 การประมูลเฉลี่ย
    45 คำเสนอราคา

    I want to go live as a bold and vibrant women’s-wear destination built on Shopify. The store is not yet themed, so I’ll rely on you to shape the full look and feel, from homepage to checkout, keeping colours, typography and imagery high-energy and fashion-forward. Alongside the build, I need seamless Instagram auto-sync. Each new collection image, every post or story, and the hashtags and captions that drive engagement on Instagram must flow straight into the relevant product pages and gallery sections of the site with no manual intervention. If Meta ever changes an endpoint, I expect the integration to stay stable through best-practice API handling. Because I am based in Vadodara, local collaboration is a plus, but I’m open to remote talent if communication is crisp a...

    $70 Average bid
    $70 การประมูลเฉลี่ย
    51 คำเสนอราคา

    I have between 8,000-10,000 items sitting on my supplier’s website that now need to live on my own Shopify store. Every listing must be migrated exactly as it currently appears—same title, same wording in the description—while also pulling across each product’s images, current price, live availability status, SKU, and relevant tags. You are free to use whatever workflow suits you best: manual entry, CSV-based import, Shopify API, or a reputable bulk-sync app. What matters is that once the job is done I can filter, search, and sell every item in Shopify with the right media, correct pricing, accurate stock level, and clean SKU structure. Deliverables • Complete import of 8,000-10,000 products, fully published and organized in Shopify • All images, pri...

    $18 / hr Average bid
    $18 / hr การประมูลเฉลี่ย
    61 คำเสนอราคา
    Legal US VIN Lookup
    6 วัน left
    ยืนยันแล้ว

    I need a reliable partner to perform daily, fully legal VIN lookups on U.S. vehicles. Every VIN I send must return a comprehensive report that merges data from CARFAX, AutoCheck, and the National Motor Vehicle Title Information System (NMVTIS). Mandatory coverage • Vehicle history • Ownership details • Accident reports Beyond those, I’m interested in any additional data points you can lawfully provide—title brands, open recalls, odometer readings, auction images, service records, and more. The richer the dataset, the better. Trial phase I will supply two to three sample VINs first. Send back complete reports so I can verify depth, accuracy, and formatting before we move forward. Ongoing workflow & deliverables • Daily turn-around on new VINs I ...

    $50 / hr Average bid
    $50 / hr การประมูลเฉลี่ย
    13 คำเสนอราคา

    I’m implementing QuoteIQ as our central field service hub and need a professional experienced in QuoteIQ to configure the platform end-to-end, link it to QuickBooks, and reconcile our existing database for seamless functionality. Scope of work: • Activate and customize the three core modules we rely on most—Scheduling & Dispatching, Work Order Management, and Customer Management—tailored to fit our business processes. • Build a scheduling and dispatch board that supports real-time updates, route optimization, and technician tracking. My team must see changes instantly on mobile. • Set up work-order workflows with job-status tracking, accurate time-tracking integrated, and an efficient notification system for both the office team and field crew. • ...

    $465 Average bid
    $465 การประมูลเฉลี่ย
    151 คำเสนอราคา
    Daily Nationwide Facebook Auto Leads
    6 วัน left
    ยืนยันแล้ว

    I need a reliable way to capture every car listing that appears on Facebook Marketplace across the entire United States and extract the seller’s direct phone number from each ad. The listings change quickly, so I want a fresh pull every 24 hours and the results delivered as a clean CSV file I can drop straight into my CRM. Here’s what the file should include each day: • Listing URL • Ad title exactly as posted • Asking price • City / state shown in the ad • Date and time the ad was scraped • Seller’s name (if visible) • Seller’s phone number in a normalized format The CSV must overwrite the previous day’s file or arrive as a clearly time-stamped new file; either way, I should always know I’m working with...

    $447 Average bid
    $447 การประมูลเฉลี่ย
    154 คำเสนอราคา

    I need a cloud-hosted CRM built from the ground up for a growing laundry franchise. The core priority is robust multi-store franchise management, so every branch can operate independently while still feeding real-time data to head office. Key workflow: • Each store logs in through its own portal to record orders, update statuses, and see today’s targets. • A live sales dashboard rolls those numbers up instantly so I can compare performance across branches from any browser or mobile device. Billing & invoicing must be friction-free. The system should generate fully customizable invoices that reflect our branding and service codes, then trigger automated payment reminders until a balance is cleared. From the central admin console I want the power to: • Add or ...

    $257 Average bid
    $257 การประมูลเฉลี่ย
    55 คำเสนอราคา

    I run a newly formed peptide-focused e-commerce LLC registered in the United States and I’m ready to streamline three critical pieces at once: 1. Integrate PayU as our primary payment gateway directly into the storefront so customers can check out smoothly. 2. Establish the right banking structure to support that processor and protect cash flow. 3. Put a solid bookkeeping workflow in place together with a forward-looking U.S. tax strategy that keeps the business compliant while minimizing liability. For the first item I only need the integration work—API hook-up, secure tokens, test transactions, and a quick hand-off document so my team can maintain it going forward. Configuration, sandbox testing, and any PCI-DSS considerations should be folded into the build. On ...

    $12 / hr Average bid
    $12 / hr การประมูลเฉลี่ย
    145 คำเสนอราคา
    Instagram Email & Phone Scraper
    5 วัน left
    ยืนยันแล้ว

    I’m looking for a ready-to-run or custom-built tool that lets me scrape Instagram user profiles on my own machine and pull out one thing only: contact details. Specifically, I need a clean export of any publicly listed or hidden emails and phone numbers from both public and private accounts I feed into the tool. Here’s the workflow I have in mind: • I drop in a list of usernames (CSV or TXT is fine). • The software signs in with my credentials (handling login challenges or two-factor gracefully). • It navigates each profile, extracts any email address or phone number it can locate—whether surfaced on the profile page, within the bio, or via the “email/phone” buttons Instagram shows to logged-in users. • Results come back in a CSV w...

    $130 Average bid
    $130 การประมูลเฉลี่ย
    128 คำเสนอราคา
    Enterprise Software Licensing Opportunity
    5 วัน left
    ยืนยันแล้ว

    Freelancer Enterprise is **Seeking Enterprise Software Owners – Repository Licensing Opportunity** Do you own a **large, proprietary software application** that you've built yourself or with your team? We're looking to connect with software developers, startups, and technology companies interested in licensing their software repositories for technical evaluation and AI research. ### We're looking for repositories that include: * 50,000+ lines of source code * At least 5 meaningful Git commits * At least 5 meaningful Pull Requests (PRs) * Complete, executable application (not just sample code) * Test cases and technical documentation * Enterprise-grade architecture and development history ### Examples of suitable applications: * Enterprise Applications * SaaS Plat...

    $80025 Average bid
    $80025 การประมูลเฉลี่ย
    128 คำเสนอราคา
    Bulk Shopify Product Upload
    5 วัน left
    ยืนยันแล้ว

    I have between 8,000-10,000 items sitting on my supplier’s website that now need to live on my own Shopify store. Every listing must be migrated exactly as it currently appears—same title, same wording in the description—while also pulling across each product’s images, current price, live availability status, SKU, and relevant tags. You are free to use whatever workflow suits you best: manual entry, CSV-based import, Shopify API, or a reputable bulk-sync app. What matters is that once the job is done I can filter, search, and sell every item in Shopify with the right media, correct pricing, accurate stock level, and clean SKU structure. Deliverables • Complete import of 8,000-10,000 products, fully published and organized in Shopify • All images, pri...

    $191 Average bid
    $191 การประมูลเฉลี่ย
    255 คำเสนอราคา

    I need a self-hosted script that automatically reads every new Instagram post in my feed (no restrictions to hashtags or accounts) and then leaves a thoughtful comment that ties directly to the caption’s wording. The automation must rely only on code I can run on my own machine or server—no cloud services, commercial schedulers, or other third-party apps. Core logic • Pull each fresh post and extract the full caption text. • Run lightweight text analysis/NLP to understand the main topic or sentiment. • Generate a short, human-sounding reply that feels relevant to that text. • Publish the comment instantly through the official Instagram Graph API or another method that stays within Instagram’s policy limits. Deliverables 1. Fully commented s...

    $13 Average bid
    $13 การประมูลเฉลี่ย
    10 คำเสนอราคา

    I already run a WhatsApp Business account, but it still shows as “unverified.” I need someone who knows the Meta Business Manager flow inside-out to walk me through the remaining steps, review the documents I have prepared, and make sure the green checkmark appears without delays or rejections. Right after the verification is complete, I want the WhatsApp Cloud/API environment configured so I can launch fully automated messaging from our server. That includes generating the API keys, linking the number, setting an initial webhook, and proving that a sample template message can be sent successfully. Please have prior, hands-on experience with recent Meta/WhatsApp policy changes; I don’t want to waste requests or hit rate limits while testing. If you can finish both pie...

    $24 Average bid
    $24 การประมูลเฉลี่ย
    76 คำเสนอราคา

    Overview: This opportunity is supporting a large-scale, multi-year Oracle business transformation for a major utility organization. The company is implementing several Oracle platforms across the enterprise, including Oracle NMS (Network Management System), Customer-to-Meter (C2M), Oracle Field Service, and Oracle Integration Cloud (OIC), with a major go-live scheduled later this year. The team is looking to bring more integration expertise in-house rather than relying on external consulting partners, creating an opportunity for an experienced Oracle Integration Cloud (OIC) Engineer to play a key role in building and supporting enterprise integrations. This is a hands-on engineering position focused on designing, developing, and maintaining integrations between critical utility and opera...

    $710 Average bid
    $710 การประมูลเฉลี่ย
    20 คำเสนอราคา
    Squareup Credential Authentication Fix
    4 วัน left
    ยืนยันแล้ว

    My Squareup Hosted Checkout keeps throwing authentication errors and I’m convinced the trouble sits inside the payment-method settings of my panel. I need a fresh pair of eyes to confirm that the correct Client ID and Client Secret from my Square developer dashboard are in place, that the environment (sandbox vs. production) is set properly, and that any required redirect or webhook URLs match what Square expects. You’ll log in, trace the credential flow, adjust anything that’s off, then run a quick test transaction so I can see a clean “approved” response instead of the current auth failure. A short hand-off note explaining what was changed will wrap it up. If you know your way around Squareup APIs, OAuth flows, and hosted checkout settings, this should...

    $22 Average bid
    $22 การประมูลเฉลี่ย
    94 คำเสนอราคา

    We are building a robust, production-grade automated fulfillment and pricing engine for an store. We have already designed the system architecture, business logic, and error handling rules. We need an experienced backend developer to implement the code quickly and cleanly. DO NOT APPLY if you only know standard web scraping (Selenium/BeautifulSoup) or basic scripts. We need a developer who understands asynchronous Python architecture, state machines, API authentication flows, and queue-based order handling. Core System Requirements & Scope Authentication & Session Management: Implement OAuth2/Cognito-based token acquisition (/api/client-credentials & /api/authentication/seller/token). Manage persistent seller sessions with dynamic token refreshing, automated retries, and s...

    $190 Average bid
    $190 การประมูลเฉลี่ย
    91 คำเสนอราคา

    **Job Title:** Senior ERP Product Architect & Business Systems Auditor **Experience Level:** 10+ Years (Enterprise Resource Planning) **Engagement:** Part-Time / Fractional / Strategic Advisory (10–15 hours/week) **Location:** Remote --- About the Role We are building a next-generation, high-density Enterprise Resource Planning (ERP) platform. The application combines universal ERP core modules (Accounting, HRMS & Payroll, Sales/CRM, Production, and Logistics/Route Planning) with highly flexible, industry-specific custom logic (such as dimensional pricing, yield/breakage tracking, and specialized field dispatch). We are seeking a **Senior ERP Product Architect / Systems Auditor** with **over 10 years of deep domain experience** in enterprise software (e.g., SAP, Oracl...

    $1019 Average bid
    $1019 การประมูลเฉลี่ย
    27 คำเสนอราคา
    TradingView-Zerodha Algo Integration
    4 วัน left
    ยืนยันแล้ว

    The goal is to turn my existing TradingView option-trading signals into fully automated orders on my Zerodha account. I already have a set of indicator-based ideas coded on TradingView; what’s missing is the fine-tuning of the logic and a rock-solid bridge that can fire option trades in real time. Options are the only asset class I plan to trade. Before going live I need the strategy refined, back-tested, and wrapped in solid risk controls—position sizing, dynamic stop-loss, max daily drawdown, and clean exit rules included. I expect the solution to use TradingView webhooks (or a comparable low-latency method) and Zerodha’s Kite Connect API. Python is preferred for the middleware, but I’m flexible if you can justify another stack. Clear logging, error handling, an...

    $108 Average bid
    $108 การประมูลเฉลี่ย
    52 คำเสนอราคา
    Synergy Trello API Sync Audit
    4 วัน left
    ยืนยันแล้ว

    I have a custom integration that keeps Total Synergy and Trello in sync through their public REST APIs. Lately, I’ve spotted dates drifting out of alignment, so the immediate objective is to pinpoint where the sync is breaking down – I’m not chasing speed improvements yet, just accuracy. Your task will involve: - Checking that the webhooks are functioning properly based on the required functionality. - Analyzing and ensuring accurate database syncing between Total Synergy and Trello. - Debugging any issues you uncover with explanations provided. This is a one-time fix. However, if your work is excellent and meets expectations, there is an opportunity for another job within the same system involving changes and further debugging. Deliverables: • Ensure all noted di...

    $100 Average bid
    $100 การประมูลเฉลี่ย
    157 คำเสนอราคา

    Customer Portal & Admin Portal Requirements Project Overview Develop a modern, secure, and scalable multi-tenant Customer Portal and Admin Portal for managing Business Phone System (PBX/UCaaS) services. The platform should provide customers with a self-service experience while giving administrators complete control over provisioning, billing, support, and system management. Customer Portal The Customer Portal should allow customers to: Manage Business Phone System (PBX/UCaaS) services. View and manage extensions, users, departments, ring groups, queues, IVRs, voicemail, call routing, and other PBX features. Manage Direct Inward Dial (DID) numbers. Configure call forwarding, caller ID, business hours, time conditions, and other telephony features. Auto-provision IP phones and suppor...

    $3434 Average bid
    $3434 การประมูลเฉลี่ย
    61 คำเสนอราคา
    Bot Python WhatsApp Guías
    3 วัน left
    ยืนยันแล้ว

    Necesito un bot escrito en Python que utilice la API de WhatsApp para el envío automático de guías de paquetería a mis clientes. El alcance inicial se centra únicamente en el envío, sin gestión de confirmaciones ni actualizaciones de estado. Flujo deseado 1. Yo descargo las guías en PDF en mi computadora o dispositivo Android. 2. El bot lee cada PDF, extrae los datos clave (número de guía, nombre del destinatario, teléfono, etc.) y construye el mensaje con la plantilla que yo proporcione. 3. Envía el mensaje al número de WhatsApp correspondiente a través de la API oficial. Requisitos técnicos • Python 3.x y librerías comunes de lectura de PDF (por ejemplo, PyPDF2 o pdf...

    $50 Average bid
    $50 การประมูลเฉลี่ย
    72 คำเสนอราคา
    Chrome Extension Loading Issue Fix
    3 วัน left
    ยืนยันแล้ว

    My in-house Chrome extension suddenly refuses to load at all—no icon, no background processes, nothing. I need an experienced extension developer to step in, pinpoint the cause, and restore full functionality. You’ll get access to the current source (manifest v3), the last working build, and a short screen-capture of the failure in Chrome 125. If third-party conflicts or API deprecations are involved, I’d like a brief note so I can avoid repeating the problem on future updates. Deliverables: • Diagnose and document the root cause of the “extension not loading” issue. • Supply corrected code and a compiled .crx or unpacked folder ready for testing. • Confirm the fix works on the latest stable Chrome for Windows and macOS. No UI red...

    $27 Average bid
    $27 การประมูลเฉลี่ย
    46 คำเสนอราคา

    I need a bot that connects to the IQ Option platform and sends real-time trading signals specifically for cryptocurrencies. The core goal is speed and accuracy: as soon as a qualifying setup appears, the bot must push the alert without delay. Scope of work • Build or integrate with the IQ Option API/web interface. • Track chosen crypto pairs continuously, applying proven technical indicators or custom logic we agree on. • Fire signals the moment conditions are met and deliver them instantly (email, Telegram, or another fast channel you recommend). • Include basic configuration so I can adjust pairs, indicator thresholds, and risk parameters without touching code. Key expectations • Millisecond-level data polling or websocket usage to keep signals truly in...

    $110 Average bid
    $110 การประมูลเฉลี่ย
    17 คำเสนอราคา
    Project Manager – Municipal Court Integration (US-Based)
    3 วัน left
    ยืนยันแล้ว

    We are seeking a US-based Project Manager with experience in justice, municipal court, and e-citation software implementations to lead system integration projects for municipal courts and clerk offices across the United States. The ideal candidate will manage the implementation and integration of Court Management Systems (CMS) with e-citation platforms, serving as the primary point of contact between courts, clerk offices, technical teams, and software vendors. This role requires a strong understanding of court workflows, statutory requirements, and software implementation best practices. Key Responsibilities Lead end-to-end implementation of municipal court and justice software solutions. Coordinate API and FTP integrations between e-citation platforms and Court Management Systems (CMS)...

    $10 / hr Average bid
    $10 / hr การประมูลเฉลี่ย
    11 คำเสนอราคา

    I’m gearing up for an e-invoicing integration round and need two fully functional sandbox environments: one in Microsoft Dynamics 365 Finance & Operations and one in SAP S/4HANA. Both tenants must stay live for roughly three months with no feature, user-count, or transaction limits so I can run realistic invoice flows end-to-end. Core scope The work revolves around Invoices, Credit Notes, Receipts and the customer management module in each system. I will be posting, voiding, adjusting and exporting documents, then pushing them to an external e-invoice gateway, so every related button, API and report has to be enabled out of the box. What I expect from you • Provision or broker fresh trial/demo tenants for each platform. • Supply admin-level credentials and any c...

    $124 Average bid
    $124 การประมูลเฉลี่ย
    86 คำเสนอราคา

    We already have OTP and transaction templates working through WhatsApp Manager, and now we want to extend this into a marketing/social messaging utility that can handle bulk sends with personalization. Let me lay out a complete scope of work for such a system: Functional Scope 1. Template Management • Fetch approved templates directly from Meta WhatsApp Manager API. • Display available templates (Marketing, Utility, Authentication). • Support text + image templates (header image, body text, footer, CTA buttons). 2. Data Upload & Processing • Upload Excel/CSV file containing: o Customer Name o Phone Number (with country code) o Optional fields (email, city, etc.) • Validate numbers (format, duplicates, opt in compliance). • Map Excel columns to template va...

    $12 / hr Average bid
    $12 / hr การประมูลเฉลี่ย
    42 คำเสนอราคา

    I need a full-stack developer to build a Library Management System (Mobile & Web). Key features required: ​Book Catalog & Inventory: List all books with Title, Author, Category, Shelf Location, Price, and status (Available/Borrowed). ​Search & Filter: Instant search by Book Title, Author Name, Category, or ISBN. ​QR Code Scanning: Scan QR code on a book to instantly view book details and status, or issue/return books. ​Borrowing & Student Tracking: Track Student Name, ID, Issue Date, Due Date, borrowing duration, and overdue days count. ​Fine & Due Management: Automatic fine calculation for late returns and pending dues status per student. ​Admin Dashboard: Overview of total books, active borrowings, overdue alerts, and member management.

    $60 Average bid
    $60 การประมูลเฉลี่ย
    33 คำเสนอราคา

    I need an Android application for our college library management project, and speed is critical—I’d like to see a working build as soon as possible. The heart of the app is a reliable, fast QR / barcode scanner that can read labels on every book in our collection. A successful scan should instantly pull up (or create) a record that stores the book title, author, call number, and any notes we decide to attach later. Beyond scanning, the app must let us: • add or edit book information manually when a code is missing or damaged • record the borrower’s name or student-ID with a single tap • set a due date and have it saved to the same record for quick lookup A clean, minimal interface is enough—functionality matters more than elaborate design. Y...

    $43 Average bid
    $43 การประมูลเฉลี่ย
    41 คำเสนอราคา
    Laravel Admin Dashboard Integration
    3 วัน left
    ยืนยันแล้ว

    I’m looking for a Laravel developer who can plug a admin dashboard and user dashboard and create a new admin dashboard - simple and sleak, and also installing it on website

    $161 Average bid
    $161 การประมูลเฉลี่ย
    413 คำเสนอราคา
    White-Label Chatwoot Omnichannel Upgrade
    3 วัน left
    ยืนยันแล้ว

    I already run a self-hosted Chatwoot instance and now want to turn it into a polished, Respond.io-style omnichannel platform that I can white-label for clients. The work is three-fold: • UI/UX – Give the dashboard layout, chat interface and user-settings pages a modern SaaS look, ensure full responsiveness, and add an easy switch for brand colours, logos and custom domains. • Integrations – Build native connectors for the major social media channels, hook the inbox to popular CRMs, and open the door to additional third-party messaging apps through API/webhook-based plugins. All integrations must be selectable from an admin panel with minimal setup steps. • Extra features – I’d like role-based permissions, advanced reporting, smart routing/a...

    $575 Average bid
    $575 การประมูลเฉลี่ย
    305 คำเสนอราคา
    WordPress Shop Setup & Product update
    3 วัน left
    ยืนยันแล้ว

    I’m running a WordPress site that is still using its demo content. I need a quick but careful configuration so the live store can finally go public. 1. First, create a new top-level category named “Product category”. It has to appear in the main menu and behave exactly like any other WooCommerce product category. 2. Switch the current demo front page over to my real WooCommerce storefront. In other words, when visitors land on the domain they should see the WooCommerce main page instead of the old demo homepage. 3. Import and update roughly 400 products from my TikTok Shop. All titles, prices, images, variations and stock counts must reflect the latest data on TikTok. If there’s a proven plugin or API method you prefer—such as CedCommerce, Socialhead, or a ...

    $146 Average bid
    $146 การประมูลเฉลี่ย
    278 คำเสนอราคา
    Automate SMS Review Requests
    2 วัน left
    ยืนยันแล้ว

    I need a small AI-driven workflow that automatically sends a single SMS containing only our review link the moment a job is marked “completed” in our system. The trigger is the service-completion confirmation event—no timers or manual pushes. The scope is straightforward: • Detect the completion confirmation coming from our platform (API or webhook can be exposed). • Generate and dispatch an SMS that includes the review link (no customer name or service details in the text for now). • Log basic send status so I can audit deliveries and retries. • Package everything so I can adjust the review link or plug in additional text fields later if needed. Twilio, AWS SNS, or a similar gateway is fine as long as delivery reporting is reliable; feel free to su...

    $48 Average bid
    $48 การประมูลเฉลี่ย
    42 คำเสนอราคา

    I need a complete Betfair white-label that plugs into the very same market exchange liquidity and volume seen on Betfair today. Who worked in betfair The end product must behave exactly like the core platform from the customer’s point of view—same markets, same depth, same refresh speed—but run under my own domain and branding. Only the exchange module is required; a sportsbook or casino add-ons are not in scope right now. I am happy with the standard Betfair interface, so no redesign work is necessary—just a faithful reproduction that carries my logo, colour palette and any legally required footer text. Your remit therefore is to: • Provision the white-label instance, connected to Betfair’s liquidity pool in real time • Configure account ...

    $1982 Average bid
    $1982 การประมูลเฉลี่ย
    48 คำเสนอราคา

    I want a hands-off workflow that takes fresh products from my Shopify store, turns them into eye-catching creatives with an image generator such as Gemini, and then publishes 3–5 ads every day to Instagram, TikTok and Facebook. Here is how I picture it working: the script or app pulls a random product via the Shopify API, feeds the main image to Gemini (or a comparable generator) for a quick upgrade, and couples the new visual with copy that I can edit on the fly. Captions, hashtags and the product link must all be easy for me to tweak before or after scheduling so I can A/B test messaging and drive visitors straight to the product page. Core expectations • Full integration with Shopify plus the official Instagram, TikTok and Facebook posting endpoints • Automated...

    $90 Average bid
    $90 การประมูลเฉลี่ย
    138 คำเสนอราคา
    Advanced Voice Chat Room App Development
    2 วัน left
    ยืนยันแล้ว

    Project Requirements Overview: Voice Chat Room App ​Category 0: User Profile & Identity ​[0.1] User Profile System: Profile page displaying Avatar, UID, Level, Wealth/Charm progress bar, equipped Frames, and Badges. ​[0.2] Admin Control: Admin must have full power to view, edit, or delete any user profile (Name, Avatar, Bio) and ban/unban users directly from the Admin Panel. ​[0.3] Status: Show 'Online/Offline' and current room occupancy on profiles. ​Category 1: Core Security & Account Management ​[1] Device Binding: One Device = One Account (Locked to Device ID). Admin must be able to reset/unlink a Device ID from an account via the Admin Panel. ​[2] Geo-locking: Region locked on signup via IP. Admin must be able to change, override, or whitelist/blacklist regions dynam...

    $106 Average bid
    $106 การประมูลเฉลี่ย
    29 คำเสนอราคา

    We are seeking an experienced Backend Developer to implement new features for our AI-powered photo processing SaaS platform based in the United States. The project focuses on expanding existing backend services using Python and Node.js while ensuring high performance, scalability, and secure API integration with AI image processing workflows. Responsibilities include designing and developing new RESTful APIs, optimizing image processing pipelines, integrating third-party AI services, and enhancing database performance for large-scale photo management. You will collaborate closely with the frontend and AI engineering teams to deliver reliable backend functionality, maintain clean and well-documented code, and participate in code reviews and testing. Experience with asynchronous processing, ...

    $243 Average bid
    $243 การประมูลเฉลี่ย
    90 คำเสนอราคา

    I need a developer who can wire my in-house order-management app directly into Tally Prime so that routine accounting tasks fire off with a single click. The core flow is simple: from our application we create an order, press “Sync,” and Tally should instantly issue the corresponding Sales Invoice, Sales Voucher and Delivery Order without any manual re-keying. Alongside those vouchers, the integration must handle customer records in both directions—new customers created in our app should appear in Tally, existing ones must update seamlessly, and all customer details must be retrievable for display inside our UI. Think of it as live, bidirectional customer data management sitting on top of synchronous voucher posting. I am open to whichever approach you prefer—Tall...

    $1674 Average bid
    $1674 การประมูลเฉลี่ย
    186 คำเสนอราคา
    Retail Chain
    2 วัน left
    ยืนยันแล้ว

    Project Name : Retail Chain Project Details : Converting Main frame DB2 legacy application into Azure application using APIS and Azure key vault code . Project technology: Dotnet , API,SQL,Azure key vault,Azure Dev,Azure AI, Azure ADMIN .

    $4 / hr Average bid
    $4 / hr การประมูลเฉลี่ย
    30 คำเสนอราคา
    Custom Financial Management Suite
    1 วัน left
    ยืนยันแล้ว

    I need a purpose-built piece of account-management software centred on Financial Management. The core must cover everyday tasks—Invoicing & Billing, Expense Tracking, and Financial Reporting—while also letting me pull a Monthly EMI list for any chosen date-to-date window. Seamless integration with my existing accounting software is essential; a clean API connection or reliable CSV/XML import-export will work as long as data stays perfectly in sync. Key deliverables • Fully-functioning web or desktop application (your recommendation) • Modules for invoicing/billing, expense tracking, financial reports, and the custom EMI date-range report • Accounting-software integration with automated data exchange • Role-based access, searchable ledgers, PD...

    $10 / hr Average bid
    $10 / hr การประมูลเฉลี่ย
    52 คำเสนอราคา

    We do not currently have any Turnitin or iThenticate API credentials. We need an existing API service provider to supply the API endpoint and credentials for integration into our commercial website. Our own technical team will handle the integration. This is not an API development or website development project. Required: * Similarity and AI Writing results * Official Viewer and downloadable PDF reports * File submission and result retrieval via API * Webhook or callback support * API documentation and test access * Clear usage and concurrency limits * Stable commercial API access Only bid if you already provide this API service. Please include documentation, test access, usage limits, and pricing in your proposal. Testing is required before the long-term purchase.

    $430 Average bid
    $430 การประมูลเฉลี่ย
    74 คำเสนอราคา

    Looking for Existing Turnitin / iThenticate API Access I need access to an existing working API for my own website. I am **not** looking for API development or integration services. Required: * Similarity and AI Writing results * Official Viewer and PDF reports * Webhook support * No account required on my side * API documentation and test access Please send your usage limits and best price. Testing is required before payment.

    $449 Average bid
    $449 การประมูลเฉลี่ย
    37 คำเสนอราคา
    WhatsApp Marketing & Bulk Messaging System
    1 วัน left
    ยืนยันแล้ว

    We already have OTP and transaction templates working through WhatsApp Manager, and now we want to extend this into a marketing/social messaging utility that can handle bulk sends with personalization. Let me lay out a complete scope of work for such a system: Functional Scope 1. Template Management • Fetch approved templates directly from Meta WhatsApp Manager API. • Display available templates (Marketing, Utility, Authentication). • Support text + image templates (header image, body text, footer, CTA buttons). 2. Data Upload & Processing • Upload Excel/CSV file containing: o Customer Name o Phone Number (with country code) o Optional fields (email, city, etc.) • Validate numbers (format, duplicates, opt in compliance). • Map Excel columns to template va...

    $43 Average bid
    $43 การประมูลเฉลี่ย
    17 คำเสนอราคา

    I need a full-featured HVAC application that runs natively on both Windows and macOS and exchanges real-time data with our existing Building Management System (BMS). At this stage, I am keeping the functional scope flexible, so you are welcome to propose the ideal mix of temperature control, energy-efficiency dashboards, maintenance alerts, or any other modules you feel add real value. What matters most is clean, intuitive UI/UX and rock-solid BMS interoperability. You will be responsible for: • Designing and building the desktop client (preferred stack is up to you, provided it delivers smooth cross-platform performance). • Implementing the data bridge that lets the app read from and write to the BMS using its documented API. • Packaging reliable installers for both OSs an...

    $5434 Average bid
    $5434 การประมูลเฉลี่ย
    138 คำเสนอราคา

    We are seeking an experienced Backend Developer to implement new features for our AI-powered photo processing SaaS platform based in the United States. The project focuses on expanding existing backend services using Python and Node.js while ensuring high performance, scalability, and secure API integration with AI image processing workflows. Responsibilities include designing and developing new RESTful APIs, optimizing image processing pipelines, integrating third-party AI services, and enhancing database performance for large-scale photo management. You will collaborate closely with the frontend and AI engineering teams to deliver reliable backend functionality, maintain clean and well-documented code, and participate in code reviews and testing. Experience with asynchronous processing, ...

    $20 / hr Average bid
    $20 / hr การประมูลเฉลี่ย
    159 คำเสนอราคา
    Live Betting Exchange Platform
    22 ชั่วโมง left

    I’m building a customised betting-exchange need betfair samr volume where users can place their own bets and watch odds refresh in real time, just as they would on a professional trading terminal. The core of the job is the exchange engine itself: matching back-and-lay orders instantly, recalculating prices on the fly, and pushing those live odds to every connected client without delay. You want to provide API I NEED ONLY BETFAIR SAME VOLUME Who past worked who have experience thay only bid Here’s what I need from you: • A responsive web interface (desktop and mobile) that lets users submit, amend, and cancel bets with one click. • A low-latency odds-streaming layer so prices update on screen the moment the book shifts. • An admin dashboard where I can sus...

    $533 Average bid
    $533 การประมูลเฉลี่ย
    48 คำเสนอราคา
    Implementación Odoo para Transporte
    20 ชั่วโมง left

    Necesito poner en marcha Odoo en una empresa de transporte mediano que opera con una flota propia 13 equipos + 3 equipos externos. El objetivo central es mejorar la eficiencia operativa, de modo que cada área clave quede integrada en una única plataforma. Alcance principal • Configurar los módulos de Gestión de flotas y Facturación, además de toda la administración general necesaria (usuarios, permisos, parámetros contables, reportes básicos). • Conectar Odoo con nuestro software de GPS actual para que cada vehículo muestre posición y kilometraje en tiempo real dentro del panel de flotas. • Ajustar flujos de trabajo: órdenes de transporte, partes de mantenimiento, facturación aut...

    $1204 Average bid
    $1204 การประมูลเฉลี่ย
    109 คำเสนอราคา

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