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. Providers and reviews are vetted extensively to ensure that we capture verified client feedback, project details, and measurable results. Use Edverise's filters to sort partners by budget, industry expertise, and location. Start comparing profiles to find the right match for your project.

Ratings Updated: August 10, 2026

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8,618 Companies

List of the Best API Development & Integration Agencies

VeeVee SoftProfile set up by Edverise AI
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We are a leading IT firm that emphasizes meticulous attention to detail. With our skills in web and mobile development, as well as project management, we consistently deliver outstanding outcomes. Our project management strategies incorporate widely-used methodologies like Agile and Scrum to ensure
Highlights
$1,000+
Min Project Size
25-49
Avg Hourly Rate
10-49
Employees
Yerevan, Am
Services Provided
40% Custom Web Application Development
30% Mobile App Development (iOS & Android)
20% Backend Development
10% API Development & Integration
AI Summary
“VeeVee Soft is a leading IT firm specializing in web, mobile, and bot development, employing Agile and Scrum methodologies alongside advanced technologies for precise, high-quality project delivery.”
IonX AIProfile set up by Edverise AI
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IonX AI Tech is an innovative agency focused on advancing AI technology to revolutionize businesses via artificial intelligence, automation, and state-of-the-art digital solutions. We equip organizations with AI-based strategies that boost productivity, efficiency, and growth potential. Our skilled
Highlights
$1,000+
Min Project Size
100-149
Avg Hourly Rate
10-49
Employees
Services Provided+7 Services
15% Generative AI
5% Other IT Consulting and SI
15% Machine Learning Model Development
10% AI-Powered Document Processing
AI Summary
“IonX AI Tech specializes in delivering tailored AI and automation solutions across healthcare, finance, e-commerce, and enterprise sectors, enhancing business productivity and growth through advanced digital technologies.”
KL EngineerProfile set up by Edverise AI
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We specialize in creating extensive ALM and tailored solutions for the automotive sector and other industries, boasting over 8 years of experience with large and medium enterprises, particularly with German OEMs. We emphasize Transparency and Traceability in the engineering V-Model by linking the Re
Highlights
$250,000+
Min Project Size
50-99
Avg Hourly Rate
10-49
Employees
Yerevan, Am
Services Provided+5 Services
20% Mobile App Development (iOS & Android)
50% Custom Web Application Development
30% API Development & Integration
5% Conversational AI & Voice Assistant Development
AI Summary
“KL Engineer delivers tailored ALM solutions for automotive and other industries, emphasizing transparency and traceability through unified data models and customized engineering process management.”
DEVITGROUP LTDProfile set up by Edverise AI
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DEVITGROUP LTD is a software engineering firm based in the UK that specializes in AI integration, scalable SaaS architecture, and modernizing enterprise .NET systems. We assist startups, scaleups, and established businesses in developing production-ready platforms, ranging from MVP SaaS products to
Highlights
$25,000+
Min Project Size
25-49
Avg Hourly Rate
10-49
Employees
London, England, Gb
Services Provided+5 Services
20% Custom Web Application Development
10% Mobile App Development (iOS & Android)
25% API Development & Integration
30% SaaS Product Development
AI Summary
“DEVITGROUP LTD is a UK-based software engineering company specializing in AI integration, scalable SaaS development, and modernizing enterprise .NET systems for startups to large businesses.”
PAPAYA CODERS PRIVATE LIMITEDProfile set up by Edverise AI
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Papaya Coders is a platform designed for mobile and web developers. We are a leading app development company offering programming guides, technology updates, software recommendations, development tutorials, blogs, and hosting services. Join us for a promising future in mobile app development.
Highlights
$1,000+
Min Project Size
50-99
Avg Hourly Rate
10-49
Employees
Lucknow, Uttar Pradesh, In
Services Provided
65% Mobile App Development (iOS & Android)
20% API Development & Integration
15% E-Commerce Development
100% Search Engine Optimization (SEO)
AI Summary
“Papaya Coders is a leading app development platform providing developers with programming guides, technology insights, tutorials, blogs, and hosting services for mobile and web applications.”
CauseLabsProfile set up by Edverise AI
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We provide managed website services tailored for expanding nonprofits and small businesses. Our aim is to enhance positive impact. With two decades of experience and expertise in technology, we assist nonprofits and companies in amplifying their influence through strategic planning, design, and besp
Highlights
$10,000+
Min Project Size
50-99
Avg Hourly Rate
2-9
Employees
Services Provided+2 Services
70% Custom Web Application Development
30% API Development & Integration
40% UX Research & Usability Testing
40% Product UX Strategy
AI Summary
“CauseLabs delivers managed website services and custom software for nonprofits and small businesses, leveraging technology and strategic design to foster growth and societal impact.”
GrinteqProfile set up by Edverise AI
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Grinteq is a prominent ecommerce development agency that assists clients in creating exceptional ecommerce solutions. With over six years of experience, the company has successfully supported more than 50 brands by delivering high-quality custom ecommerce solutions and optimized online stores. Their
Highlights
$10,000+
Min Project Size
50-99
Avg Hourly Rate
50-249
Employees
Lisboa, Lisbon, Pt
Services Provided+3 Services
70% E-Commerce Development
15% API Development & Integration
15% Mobile App Development (iOS & Android)
25% CRM Consulting and SI
AI Summary
“Grinteq is an experienced ecommerce development agency delivering custom, high-quality online store solutions across platforms like Adobe Commerce, Salesforce, and Shopify using advanced technologies.”
BI StructureProfile set up by Edverise AI
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BI Structure is a provider of technology solutions that focuses on AI-powered automation, intelligent agent systems, and data-oriented software development. We create, implement, and roll out comprehensive AI frameworks that streamline complex business processes, transform raw data into useful insig
Highlights
25-49
Avg Hourly Rate
Karachi, Sindh, Pk
Services Provided+1 Services
70% Custom Web Application Development
30% API Development & Integration
40% AI Agent & Multi-Agent System Development
30% Custom AI Chatbot Development
AI Summary
“BI Structure specializes in AI-driven automation, intelligent systems, and data-centric software, delivering solutions that optimize business processes, enhance customer engagement, and drive strategic growth.”
StfalconProfile set up by Edverise AI
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Our company specializes in developing custom web and mobile applications for the transportation and logistics sector, leveraging an AI-driven team for over 16 years. What sets us apart is our ability to accelerate development by 30% through the use of pre-built modules and mainstream technologies, e
Highlights
$10,000+
Min Project Size
25-49
Avg Hourly Rate
50-249
Employees
Khmelnytskyi, Ua
Services Provided+4 Services
15% API Development & Integration
40% Custom Web Application Development
15% Blockchain & Web3 Development
30% Mobile App Development (iOS & Android)
AI Summary
“Stfalcon delivers custom AI-driven web and mobile solutions across transportation, logistics, emergency response, and fintech, accelerating development with scalable, high-quality software for diverse clients since 2009.”
Smart Mobile HouseProfile set up by Edverise AI
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Smart Mobile House is a leading global mobile development agency based in Europe. Our distinctive advantage lies in our ability to deliver highly interactive mobile and web applications that incorporate elements of artificial intelligence. We assist mid-sized and large companies in developing produc
Highlights
$50,000+
Min Project Size
100-149
Avg Hourly Rate
50-249
Employees
Krakow, Lesser Poland, Pl
Services Provided+4 Services
15% API Development & Integration
15% Frontend Development
15% Backend Development
40% Mobile App Development (iOS & Android)
AI Summary
“Smart Mobile House is a European mobile development agency specializing in AI-driven interactive applications and comprehensive services across strategy, design, technology, and ongoing support for mid to large companies.”

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