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

Merixstudio
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Merixstudio: Leading Global Software Development Partner Merixstudio is ranked #5 on the Clutch 1000 list of top B2B service providers and holds the top position among software development firms globally. We specialize in merging consulting, design, and software engineering to create digital solut
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Poznan, Greater Poland, Pl
Services Provided+5 Services
20% Custom Web Application Development
15% Mobile App Development (iOS & Android)
15% API Development & Integration
10% E-Commerce Development
AI Summary
“Merixstudio is a leading global software development partner specializing in consulting, design, and engineering to deliver secure, scalable digital solutions that enhance growth, reliability, and customer experience.”
DazzleBirds
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At DazzleBirds, we prioritize your needs and leverage our expertise to provide you with an ideal mix of efficiency and quality. Our main goal is to deliver meticulously organized, well-crafted, and streamlined products that give you a competitive advantage in today's technologically advanced landsca
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Ahmedabad, Gujarat, In
Services Provided
23% Custom Web Application Development
17% E-Commerce Development
10% API Development & Integration
50% Web App UI Design
AI Summary
“DazzleBirds specializes in delivering efficient, high-quality software technology solutions, combining expertise and organization to provide clients with competitive advantages and foster lasting partnerships.”
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JaiPar Tech Solutions™
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JaiparTechSolutions is a leading mobile application development firm that provides high-performance solutions for Android, iOS, and cross-platform needs. We focus on creating scalable, user-focused applications, on-demand services, and meeting enterprise requirements. Our skilled team guarantees smo
Highlights
$25-49/hr
Avg Hourly Rate
2-9
Employees
Jamnagar, In
Services Provided
70% Mobile App Development (iOS & Android)
15% API Development & Integration
5% E-Commerce Development
10% QA & Software Testing
AI Summary
“Jaipar Tech Solutions is a leading mobile app developer specializing in scalable, user-friendly Android, iOS, and cross-platform applications to support business growth with innovative technology.”
Markhor IT Solutions
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Markhor IT Solutions is a comprehensive technology partner committed to supporting businesses in their growth, innovation, and success in the digital landscape. We provide a range of services including custom software development, mobile app development, website design, and advanced digital marketin
Highlights
$25-49/hr
Avg Hourly Rate
10-49
Employees
Rowland, North Carolina, Us
Services Provided
13% E-Commerce Development
17% API Development & Integration
20% Mobile App Development (iOS & Android)
50% Other IT Consulting and SI
AI Summary
“Markhor IT Solutions offers comprehensive digital services including software development, web design, digital marketing, cloud solutions, and cybersecurity, delivering customized, scalable technology to support business growth.”
DuoByte
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DuoByte is a specialized software development firm that provides on-demand enterprise-grade solutions for businesses with intricate technical needs. With extensive knowledge in backend development, healthcare IT, and compliance-focused environments, we convert complex specifications into dependable,
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Morsbach, De
Services Provided+1 Services
13% Custom Web Application Development
20% API Development & Integration
17% Backend Development
30% Machine Learning Model Development
AI Summary
“DuoByte specializes in custom enterprise software development, delivering scalable, compliant backend systems and APIs tailored to complex business needs, especially in healthcare and regulated industries.”
Qubicmind P.C.
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Qubicmind is a dedicated consultancy focused on AI and Machine Learning, providing tailored solutions for sectors such as energy, infrastructure, and enterprise. We assist organizations in harnessing the potential of their operational data with production-ready AI systems, encompassing areas like pr
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Kalamata, Gr
Services Provided+1 Services
13% Custom AI Chatbot Development
17% AI Strategy & Roadmap Consulting
20% Machine Learning Model Development
20% API Development & Integration
AI Summary
“Qubicmind offers expert AI and machine learning consultancy, delivering production-ready solutions across energy, infrastructure, and enterprise sectors, integrating academic research with practical engineering for operational data optimization.”
BNMA
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We don't simply create software; we assist organizations in transforming their internal operations to achieve more with less effort. At BNMA, we focus on developing tailored software solutions for enterprise clients. Our approach merges process optimization and digital transformation, leveraging str
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Carlsbad, California, Us
Services Provided+4 Services
20% Custom Web Application Development
8% Mobile App Development (iOS & Android)
15% API Development & Integration
8% SaaS Product Development
AI Summary
“BNMA specializes in tailored software solutions and digital transformation, enhancing enterprise efficiency through process optimization, AI-driven tools, and expert consulting across diverse industries.”
Everge Studio
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We enable businesses and startups to fully realize the potential of their online projects by providing scalable, profit-oriented, and effective digital solutions.
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Leicester, England, Gb
Services Provided+1 Services
30% Custom Web Application Development
20% API Development & Integration
20% Product UX Strategy
15% Mobile App UI Design
AI Summary
“Everge Studio delivers scalable, profit-driven digital solutions to help businesses and startups fully realize the potential of their online projects effectively and efficiently.”
COFEBE Inc.
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COFEBE engineers tackle complex software development issues in areas such as IoT, SOA, SaaS, and APIs. Our cohesive team of highly efficient engineers develops technology that connects real users with your business. Only Cofebe offers a unified software operating system that operates seamlessly acro
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Orange, California, Us
Services Provided+1 Services
15% Custom Web Application Development
20% API Development & Integration
15% SaaS Product Development
30% Product UX Strategy
AI Summary
“COFEBE Inc. specializes in advanced software solutions including IoT, SOA, SaaS, and APIs, delivering unified cloud operating systems that seamlessly integrate diverse cloud environments.”
Metal Studio Private Limited
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Metal Studio is a forward-thinking tech firm that specializes in Intelligent Automation solutions. Emphasizing innovation, we leverage advanced technologies to enable smooth integration of intelligent systems, boosting efficiency and improving operations in multiple sectors. Our strengths lie in off
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Dhaka, Dhaka, Bd
Services Provided+2 Services
20% Custom Web Application Development
5% Mobile App Development (iOS & Android)
20% API Development & Integration
5% E-Commerce Development
AI Summary
“Metal Studio Private Limited specializes in Intelligent Automation solutions, leveraging advanced technologies to enhance operational efficiency and innovation across diverse industries.”

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Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

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