Top API Development & Integration Companies

A high-performing API Development & Integration solution can accelerate growth, boost customer engagement, and create new revenue streams—but only if it's built by a team you trust. Edverise makes it easy to connect with leading API Development & Integration companies around the globe. Every profile sets out services, pricing, locations, and past work so you can compare on evidence. Use Edverise's filters to sort partners by budget, industry expertise, and location. Start comparing profiles to find the right match for your project.

How this list is built

We evaluate companies on verified profile data — services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

8,618 Companies

List of the Best API Development & Integration Agencies

Tellestia TechnologiesProfile set up by Edverise AI
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Tellestia is a consulting firm specializing in technology that assists businesses in linking their systems, data, and applications. We focus on API integration and iPaaS (Integration Platform as a Service) solutions that facilitate information sharing across various tools and platforms. Our team col
Highlights
$25-49/hr
Avg Hourly Rate
50-249
Employees
Services Provided+1 Services
50% API Development & Integration
5% IT Staff Augmentation
5% BI & Big Data Consulting & SI
10% Cloud Consulting & SI
AI Summary
“Tellestia Technologies is a consulting firm specializing in API integration and iPaaS solutions, helping businesses streamline processes, connect systems, and support digital growth.”
GridkossProfile set up by Edverise AI
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Grid is a leading AI development firm focused on developing groundbreaking solutions that enhance efficiency, scalability, and effectiveness. With a strong background in machine learning, automation, and bespoke AI tools, we assist businesses in turning challenges into opportunities, providing custo
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Prishtina, Xk
Services Provided+2 Services
10% AI Strategy & Roadmap Consulting
10% Custom AI Chatbot Development
15% Machine Learning Model Development
10% Conversational AI & Voice Assistant Development
AI Summary
“Gridkoss is a leading AI development firm specializing in machine learning, automation, and custom AI solutions, enhancing business efficiency, scalability, and effectiveness with tailored, accurate results.”
VaysedProfile set up by Edverise AI
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Vaysed is a top-tier Telegram Bot Development Agency boasting more than 5 years of expertise. We excel in creating personalized, scalable bot solutions designed to meet your specific business requirements, utilizing Node.js and Python. Our capabilities range from effortless payment integrations (Str
Highlights
2-9
Employees
Services Provided+1 Services
25% Workflow Automation (Zapier / Make / n8n)
5% AI Agent & Multi-Agent System Development
5% Robotic Process Automation (RPA)
15% Custom AI Chatbot Development
AI Summary
“Vaysed is an experienced Telegram bot development agency specializing in custom, scalable solutions using Node.js and Python, integrating payments, APIs, LMS, and e-commerce automation.”
Virtuebyte Pvt LtdProfile set up by Edverise AI
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Virtuebyte specializes in cloud computing and AI/ML, offering innovative, tailored solutions that drive digital progress across various sectors. Backed by top-tier software security and compliance standards, our skill set encompasses DevOps, Cloud Computing, Machine Learning, and Artificial Intellig
Highlights
$1,000+
Min Project Size
10-49
Employees
Pune, Maharashtra, In
Services Provided+4 Services
10% AI Strategy & Roadmap Consulting
10% LLM Integration & Prompt Engineering
8% Custom AI Chatbot Development
8% AI-Powered Document Processing
AI Summary
“Virtuebyte Pvt Ltd. delivers customized cloud computing and AI/ML solutions across diverse industries, leveraging expertise in software security, DevOps, and advanced technologies to solve complex business challenges.”
Reactive SynapseProfile set up by Edverise AI
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At RxSynapse, we lead the way in AI-driven innovation within the Banking, Financial Services, and Insurance (BFSI) industry. Our state-of-the-art solutions enable organizations to refine their operations, improve decision-making, and stimulate growth through Automation, Integration, Migration, Strat
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+1 Services
15% AI Strategy & Roadmap Consulting
8% LLM Integration & Prompt Engineering
5% Custom AI Chatbot Development
22% Generative AI
AI Summary
“Reactive Synapse specializes in AI-driven solutions for the BFSI sector, enhancing operations, decision-making, and growth through automation, integration, migration, and strategic analytics.”
I
interbranche Internetagentur München GmbHProfile set up by Edverise AI
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At Interbranche, we develop various systems to link ERP systems with online shops. For these projects, we create custom middleware to connect with our proprietary shop system as well as popular open-source shop systems. Additionally, we have built 150 WordPress sites and 20 Magento 2 stores. As an a
Highlights
$250,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Munich, Bavaria, De
Services Provided
50% API Development & Integration
10% Mobile App Development (iOS & Android)
40% Custom Web Application Development
AI Summary
“Interbranche Internetagentur München GmbH specializes in integrating ERP systems with online shops, building custom middleware, and developing WordPress and Magento stores alongside design services.”
3ix ConsultingProfile set up by Edverise AI
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3ix Consulting is a Microsoft Dynamics 365 Implementation Partner that focuses on sustainable, scalable, and flexible implementations and upgrades of Microsoft Dynamics 365 Business Applications. Our goal is to boost productivity, lower operational costs, and enhance customer satisfaction. We have e
Highlights
$25-49/hr
Avg Hourly Rate
50-249
Employees
Services Provided+1 Services
18% BI & Big Data Consulting & SI
17% CRM Consulting and SI
10% Cloud Consulting & SI
5% ERP Consulting and SI
AI Summary
“3ix Consulting specializes in Microsoft Dynamics 365 and Power Platform implementations, offering scalable solutions to enhance productivity, reduce costs, and support global businesses across diverse industries.”
KloudpluginsProfile set up by Edverise AI
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We are passionate about connecting systems and streamlining business processes through our integration expertise and tools.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Lahore, Pk Punjab, Pk
Services Provided
50% API Development & Integration
33% Cloud Consulting & SI
17% Other IT Consulting and SI
AI Summary
“Kloudplugins specializes in integrating diverse systems and optimizing business processes through expert solutions and innovative tools, enhancing operational efficiency for organizations.”
G
Goma-it e.U.Profile set up by Edverise AI
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Goma-IT ist eine Fachagentur für künstliche Intelligenz und Prozessautomatisierung mit Sitz in Vorarlberg. Unser Schwerpunkt liegt auf kleinen und mittleren Unternehmen im DACH-Raum, die wiederkehrende Aufgaben an intelligente Systeme delegieren möchten, ohne ein eigenes Technik-Team aufbauen zu müs
Highlights
$1,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Ausserbraz, Tyrol, At
Services Provided
8% IT Staff Augmentation
12% Other IT Consulting and SI
30% AI Agent & Multi-Agent System Development
50% API Development & Integration
AI Summary
“Goma-IT in Vorarlberg specializes in AI and process automation for SMEs in the DACH region, delivering practical, ready-to-use intelligent workflow solutions without requiring in-house tech teams.”
AdvapayProfile set up by Edverise AI
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Advapay offers the Macrobank Core Banking platform designed for fintech firms. Headquartered in Estonia and with a regional presence in the Netherlands, Spain, Poland, Serbia, and Canada, Advapay caters to financial service providers throughout the UK, EEA, Middle East, Africa, and Canada. The Macro
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Tallinn, Harju, Ee
Services Provided
40% Custom Web Application Development
40% API Development & Integration
20% SaaS Product Development
AI Summary
“Advapay delivers a flexible, customizable Macrobank Core Banking platform with comprehensive banking and payment features, serving fintechs globally via cloud or on-premise, supported by regulatory approvals.”

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