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.

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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

8,487 Companies

List of the Best API Development & Integration Agencies

Modernsoft Innovations
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ModernSoft Innovations is a comprehensive software development agency dedicated to helping businesses enhance their operations with intelligent, scalable, and user-friendly digital solutions. Established in 2025, we focus on creating custom web applications, business automation systems, restaurant a
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Dhaka, Dhaka, Bd
Services Provided+7 Services
12% Custom Web Application Development
3% Mobile App Development (iOS & Android)
8% E-Commerce Development
7% API Development & Integration
AI Summary
“ModernSoft Innovations delivers tailored software solutions, including web, automation, and e-commerce platforms, leveraging modern technologies to empower SMEs with efficient, scalable digital tools.”
Mushroom Solutions Inc
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Mushroom Solutions is a leading provider in the fields of Automation, Document Processing, and Clinical Trials Operations Automation (CTOps). Our mission is centered on key objectives that include streamlining processes, promoting automation, reducing costs, and improving the customer experience. We
Highlights
$5,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
50-249
Employees
Services Provided+9 Services
4% AI Agent & Multi-Agent System Development
6% Robotic Process Automation (RPA)
3% Other IT Consulting and SI
3% Generative AI
AI Summary
“Mushroom Solutions Inc. specializes in automation and document processing, enhancing clinical trials operations through innovative technologies to improve efficiency, reduce costs, and elevate customer experience.”
OneNine Innovations
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OneNine is an energetic development agency based in Montreal that focuses on custom software development, artificial intelligence, and e-commerce solutions. We help businesses boost revenue, optimize operations, and improve their digital presence by implementing cutting-edge technology and increasin
Highlights
$5,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Montreal, Quebec, Ca
Services Provided+6 Services
5% API Development & Integration
13% Custom Web Application Development
5% Mobile App Development (iOS & Android)
10% E-Commerce Development
AI Summary
“OneNine Innovations is a Montreal-based agency specializing in custom software, AI, and e-commerce solutions, driving business growth through advanced technology and digital transformation.”
illustrated domain
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Illustrated Domain is a strategic digital consultancy and web architecture company dedicated to creating structured, future-proof platforms for expanding organizations. We specialize in website architecture, backend system planning, and digital infrastructure strategies tailored for businesses in re
Highlights
$10,000+
Min Project Size
10-49
Employees
Services Provided+4 Services
14% Custom Web Application Development
8% Legacy System Modernization
4% API Development & Integration
12% Product UX Strategy
AI Summary
“Illustrated Domain is a strategic digital consultancy specializing in scalable website architecture, backend planning, and integrated digital solutions for complex, regulated industries seeking long-term growth.”
K
Kadabra Labs Kft
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Utilize automation and AI technologies to accelerate your business operations.
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Tarnok, Hu
Services Provided+2 Services
20% Custom Web Application Development
14% API Development & Integration
17% LLM Integration & Prompt Engineering
13% AI Strategy & Roadmap Consulting
AI Summary
“Kadabra Labs Kft. leverages automation and AI technologies to enhance and accelerate diverse business operations, fostering efficiency and innovation across various industries.”
Geniusee
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We are a US-based company specializing in mobile app, web, and custom software development, with engineering hubs located in Ukraine and Poland. Our mission is to help businesses achieve unicorn status, enhance their competitive edge, and boost their return on investment. Our skilled team of 200 cer
Highlights
$50,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
250-999
Employees
Warszawa, Masovian, Pl
Services Provided+12 Services
6% Mobile App Development (iOS & Android)
3% API Development & Integration
4% Frontend Development
4% Backend Development
AI Summary
“Geniusee is a US-based software development firm with 200 experts in Ukraine and Poland, delivering cloud, mobile, web, AI, and consulting services for startups and enterprises.”
Everincodeh Technology
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Everincodeh is an innovative software consulting partner that offers top-notch remote expertise to clients in the USA, Canada, the UK, Germany, and Australia. Our focus areas include AI and machine learning, DevOps and infrastructure automation, data science and big data, as well as custom software
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Indore, Madhya Pradesh, In
Services Provided+5 Services
8% API Development & Integration
20% Custom Web Application Development
5% Mobile App Development (iOS & Android)
8% AI Strategy & Roadmap Consulting
AI Summary
“Everincodeh Technology delivers expert remote software consulting worldwide, specializing in AI, DevOps, data science, and custom development, ensuring scalable, secure, and innovative digital solutions.”
PX6 IA TECH
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**About Us** We are PXGCorp Intelligence Services, a tech company dedicated to revolutionizing businesses through AI, automation, cybersecurity, and customized digital solutions that foster innovation and growth. **Our Mission** Our mission is to empower businesses by incorporating intelligen
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Orlando, Florida, Us
Services Provided+5 Services
13% Custom Web Application Development
5% Mobile App Development (iOS & Android)
8% API Development & Integration
10% Workflow Automation (Zapier / Make / n8n)
AI Summary
“PXGCorp Intelligence Services delivers AI-driven automation, secure system integrations, and custom digital solutions, empowering businesses to enhance efficiency, scalability, and sustainable growth.”
Signi5sys Limited
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We are a technology firm dedicated to creating SaaS platforms, business automation tools, and extensive software solutions tailored for service-oriented businesses and enterprises. Our mission is to develop meaningful software in an effective manner. With more than 20 years of experience in software
Highlights
50-249
Employees
Services Provided+3 Services
5% Mobile App Development (iOS & Android)
17% Custom Web Application Development
10% API Development & Integration
2% E-Commerce Development
AI Summary
“Signi5sys Limited develops scalable SaaS platforms and business automation tools, emphasizing production-grade software, reliability engineering, and long-term maintainability across diverse service-oriented industries.”
Web3App - Out of Business
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We create top-notch web and mobile applications, offer maintenance services, and ensure the quality of our results. Our business-focused methodology delivers expertise throughout all phases of blockchain-based software development, complemented by exceptional customer support. When you collaborate w
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Riga, Lv
Services Provided+4 Services
8% API Development & Integration
13% Backend Development
17% Blockchain & Web3 Development
7% Frontend Development
AI Summary
“Web3App specialized in developing high-quality web and mobile applications with a focus on blockchain technology, offering comprehensive development, maintenance, and dedicated customer support services.”

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