Top API Development & Integration Firms

API development and integration firms build the interfaces that let software talk to other software, and wire up the ones that already exist. Work ranges from designing REST, GraphQL or gRPC APIs for a product or partner program to connecting payment gateways, CRMs, ERPs, shipping carriers, messaging platforms and banking or healthcare systems through their published APIs. Companies hire for it when staff retype data between two systems, when partners want programmatic access, or when a monolith is being split into services.

Compare firms here on the systems they have integrated before, the documentation they hand over, and how they handle authentication, versioning and outages when a third-party API fails.

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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

8,490 Companies

List of the Best API Development & Integration Agencies

Softmind Infotech Pvt. Ltd.
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We offer software outsourcing solutions from India. With a skilled team of over 100 professionals, we assist our clients in rapidly launching high-quality software. As one of India's top software development firms, we provide innovative, efficient, and cost-effective web systems and mobile applicati
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Services Provided+11 Services
20% Other IT Consulting and SI
10% Legacy System Modernization
10% Managed IT Services
5% API Development & Integration
AI Summary
“Softmind Infotech Pvt. Ltd. is an Indian software outsourcing firm delivering efficient, cost-effective solutions in software development, testing, mobile apps, e-commerce, design, SEO, and project management.”
Jeno-Tech Solutions
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Jeno-Tech Solutions is a global technology partner based in Nairobi, Kenya. We create and develop secure digital products.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+5 Services
8% Mobile App Development (iOS & Android)
14% Custom Web Application Development
8% API Development & Integration
3% E-Commerce Development
AI Summary
“Jeno-Tech Solutions, based in Nairobi, Kenya, is a global technology partner specializing in developing secure digital products and delivering comprehensive IT solutions.”
Obsidian Vertex LLC
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Obsidian Vertex is a leading entity in providing advanced technology solutions that enable businesses to thrive in a dynamic and competitive environment. Our areas of expertise include AI, Machine Learning, Deep Learning, Data Science, and sophisticated software engineering. Since our inception in 2
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Services Provided+19 Services
4% Custom Web Application Development
3% Mobile App Development (iOS & Android)
3% API Development & Integration
3% Backend Development
AI Summary
“Obsidian Vertex delivers tailored AI, software engineering, and cybersecurity solutions globally, enabling businesses across industries to innovate, optimize operations, and maintain competitive advantage through scalable technology.”
Trater Solutions
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Hello! 👋 We're Trater Solutions, a Full Stack Web Development team with 7+ years of experience providing top-notch digital solutions—ranging from custom PHP web applications and eCommerce platforms to mobile apps and advanced WordPress integrations. We’ve successfully completed over 100 projects fo
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
15% Custom Web Application Development
10% E-Commerce Development
10% Backend Development
5% Frontend Development
AI Summary
“Trater Solutions is a full stack web development team with 7+ years experience delivering custom PHP, eCommerce, mobile apps, and WordPress solutions, emphasizing quality, scalability, and client satisfaction.”
Feuerpfeil Werbeagentur GmbH & Co. KG
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Feuerpfeil is a comprehensive advertising and software agency located in Bayreuth, Bavaria, Germany, boasting over two decades of experience in digital and creative services. As a full-service provider, we encompass the complete range of contemporary brand communication, including native app develop
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Bayreuth, Bavaria, De
Services Provided+12 Services
8% Mobile App Development (iOS & Android)
4% Custom Web Application Development
3% API Development & Integration
1% E-Commerce Development
AI Summary
“Feuerpfeil Werbeagentur GmbH & Co. KG is a Bayreuth-based full-service agency delivering integrated advertising, software development, branding, and digital solutions for diverse clients across Bavaria and beyond.”
CoffeeCodes
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CoffeeCodes is an innovative tech firm focused on web and app development, AI solutions, DevOps, cloud services (including AWS, Azure, and GCP), and video editing. We collaborate with startups to create their minimum viable products (MVPs), utilizing our deep technical knowledge and teamwork philoso
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+7 Services
9% Mobile App Development (iOS & Android)
10% Custom Web Application Development
5% API Development & Integration
1% E-Commerce Development
AI Summary
“CoffeeCodes is a tech company specializing in web and app development, AI, DevOps, cloud services, and video editing, partnering with startups to deliver integrated MVP solutions collaboratively.”
Airovo Technologies
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Airovo Technologies is a contemporary software engineering firm dedicated to creating intelligent, scalable, and future-oriented digital solutions. Established in 2022, we assist startups, small and medium-sized enterprises, and corporations in speeding up innovation through AI-driven development, t
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+20 Services
5% Custom Web Application Development
3% Mobile App Development (iOS & Android)
2% E-Commerce Development
5% API Development & Integration
AI Summary
“Airovo Technologies delivers AI-driven, scalable software solutions—including SaaS, automation, web/mobile apps, and cloud engineering—empowering startups to enterprises with innovative, secure, and efficient digital products.”
hounddog development
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HoundDog Dev is a comprehensive digital solutions agency that offers advanced IT consulting, custom application development, and high-level security services. We enable startups, large companies, and government organizations to utilize scalable technologies that promote growth, enhance operational e
Highlights
$1,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
50-249
Employees
Services Provided+20 Services
4% Mobile App Development (iOS & Android)
4% SaaS Product Development
3% Frontend Development
3% API Development & Integration
AI Summary
“HoundDog Dev delivers tailored digital solutions including custom development, IT consulting, and cybersecurity, enabling scalable growth and efficiency across diverse industries with expert support.”
Vulkan Digital
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At Vulkan Digital, we are your reliable ally in fostering growth in the rapidly changing digital landscape. We provide a comprehensive range of services, from establishing your online presence to developing effective campaigns that drive conversions, all aimed at helping your business succeed. Our d
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+8 Services
4% API Development & Integration
11% Custom Web Application Development
6% E-Commerce Development
4% Mobile App Development (iOS & Android)
AI Summary
“Vulkan Digital empowers businesses to grow digitally by offering comprehensive online presence and campaign development services, focusing on results-driven strategies to enhance brand differentiation.”
Hyphensoft
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Hyphensoft, established by Ankit Kumawat, is a professional web development firm focused on delivering high-quality, responsive websites for businesses and organizations. Our skilled developers and designers leverage the latest technologies to create custom websites tailored to our clients' unique r
Highlights
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided+5 Services
10% Mobile App Development (iOS & Android)
12% E-Commerce Development
8% Custom Web Application Development
4% API Development & Integration
AI Summary
“Hyphensoft is a professional web development firm specializing in custom, responsive websites, e-commerce platforms, mobile apps, and web portals tailored to client needs and optimized for performance.”

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Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

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