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

iBiT Progress
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iBiT Progress is a prominent provider of IT solutions, dedicated to offering innovative and customized technology services to businesses around the globe. We prioritize quality, efficiency, and client satisfaction, providing a diverse array of services such as software development, e-commerce soluti
Highlights
10-49
Employees
Services Provided+18 Services
3% Frontend Development
2% Legacy System Modernization
3% Backend Development
4% Custom Web Application Development
AI Summary
“iBiT Progress delivers tailored IT solutions across software development, AI, digital marketing, and cloud infrastructure, ensuring innovative, efficient, and secure technology services for global businesses.”
Triserge Technologies
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We are a contemporary digital solutions firm dedicated to creating scalable platforms, high-performance applications, and smart systems that enable businesses to succeed in the digital age.
Highlights
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+6 Services
25% Software Development Services
15% Custom Web Application Development
10% Machine Learning Model Development
10% Other IT Consulting and SI
AI Summary
“Triserge Technologies delivers scalable digital platforms, high-performance applications, and intelligent systems, empowering businesses to excel in the evolving digital landscape with innovative solutions.”
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VedaTech LLC
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Vedatech is a prominent consulting company that focuses on advanced technologies, including Application Performance Management (APM), DevSecOps, Site Reliability Engineering (SRE), Automation, and Non-Functional Testing (NFTs). Committed to offering innovative solutions and facilitating digital tran
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided+12 Services
3% Generative AI
5% Workflow Automation (Zapier / Make / n8n)
3% Machine Learning Model Development
3% AI Strategy & Roadmap Consulting
AI Summary
“Vedatech LLC specializes in consulting services across APM, DevSecOps, SRE, automation, and non-functional testing, delivering tailored digital transformation solutions to enhance business operations and security.”
Invertio solutions pvt ltd
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We operate like a finely tuned machine, integrating high standards, innovative ideas, and effective outcomes into every project we handle. When you partner with us, you’re not just receiving software; you’re gaining a powerful combination that achieves results, impresses, and turns your objectives i
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+9 Services
5% Mobile App Development (iOS & Android)
4% E-Commerce Development
2% Legacy System Modernization
4% QA & Software Testing
AI Summary
“Invertio Solutions Pvt Ltd integrates innovation and high standards to deliver effective software solutions, transforming client objectives into impactful, results-driven outcomes across diverse projects.”
Appcelerate Digital
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We speed up digital product development by incorporating AI-driven processes. From initial concept to final deployment, we create innovative solutions that deliver results. Our team consists of technologists, strategists, and problem-solvers committed to converting ideas into impactful digital solut
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+4 Services
15% Mobile App Development (iOS & Android)
14% Custom Web Application Development
5% API Development & Integration
10% AI Strategy & Roadmap Consulting
AI Summary
“Appcelerate Digital accelerates AI-driven mobile, web, and API development, supporting diverse sectors from concept to deployment with in-house expertise and innovative digital marketing strategies.”
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HadesReality (pvt) Ltd.
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HadesReality streamlines complexity. We create reliable kiosk ecosystems and tailor-made enterprise software for the global market. By blending the flexibility of a startup with robust enterprise security, we assist our clients in lowering operational costs and improving customer interaction using a
Highlights
$25-49/hr
Avg Hourly Rate
10-49
Employees
Wattala, Lk
Services Provided+12 Services
6% Custom Web Application Development
5% API Development & Integration
3% E-Commerce Development
6% Backend Development
AI Summary
“HadesReality (pvt) Ltd. develops secure kiosk ecosystems and customized enterprise software, enhancing global clients' operational efficiency and customer engagement through advanced technology.”
FGX Technologies PLT
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Forward Genix is a software development company based in Malaysia that offers enterprise-level solutions at 50-60% lower costs compared to US firms. **Services Offered:** - **Custom Software Development** (ranging from $15K to $500K+): This includes enterprise applications, web platforms, mobile a
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+9 Services
7% Custom Web Application Development
5% Mobile App Development (iOS & Android)
5% API Development & Integration
7% SaaS Product Development
AI Summary
“FGX Technologies PLT, Malaysia-based Forward Genix, delivers cost-effective, enterprise-grade custom software, AI/ML, SaaS, and dedicated development teams with strong US timezone overlap and bilingual expertise.”
Anantam Innovision Private Limited
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At Anantam Innovision, we are dedicated to providing endless opportunities with cutting-edge software solutions. Our skilled team diligently develops software that is user-friendly, dependable, and exceptionally efficient, consistently striving to expand the limits of innovation. We provide services
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+8 Services
10% Custom Web Application Development
8% Mobile App Development (iOS & Android)
5% API Development & Integration
3% E-Commerce Development
AI Summary
“Anantam Innovision develops innovative, reliable software solutions across web, ERP, AI/ML, mobile, desktop, and gaming applications, leveraging advanced technologies to expand digital possibilities.”
Endelevu Labs
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Endelevu Labs is leading the way in sustainable technology, transforming our approach to using innovation for environmental protection. We imagine a worldwide transition where advanced technology establishes new benchmarks in sustainability, encouraging a future in which innovation and environmental
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+7 Services
5% Mobile App Development (iOS & Android)
3% Legacy System Modernization
3% QA & Software Testing
5% API Development & Integration
AI Summary
“Endelevu Labs pioneers sustainable technology innovations, integrating environmental protection with advanced solutions to promote global sustainability benchmarks and eco-conscious innovation.”
The Visualizer
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Our organization specializes in comprehensive digital marketing services, which encompass graphic design, documentary production, filming and editing, as well as IT development that includes mobile applications, artificial intelligence, machine learning, augmented reality, virtual reality, e-commerc
Highlights
< $25/hr
Avg Hourly Rate
50-249
Employees
Services Provided+14 Services
6% Mobile App Development (iOS & Android)
5% Custom Web Application Development
3% API Development & Integration
2% E-Commerce Development
AI Summary
“The Visualizer offers comprehensive digital marketing solutions including graphic design, media production, and advanced IT development across India, Dubai, and the USA, prioritizing client goals.”

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Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

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