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

ProxiNexus
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We will develop your application within 6 to 10 weeks using Flutter and launch it on both Android and iOS platforms. Our complete development process includes planning, designing, building, and releasing your MVP, followed by assisting you in refining it based on user feedback.
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+2 Services
7% Custom Web Application Development
23% Mobile App Development (iOS & Android)
3% API Development & Integration
20% IT Staff Augmentation
AI Summary
“ProxiNexus specializes in rapid Flutter-based application development, delivering cross-platform Android and iOS MVPs within 6-10 weeks, including design, launch, and iterative user-focused refinement.”
gmac web india
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Gmac Web India was founded in 2019 and serves as a comprehensive solution for all your online business needs. We have specialized departments for digital marketing, website development, and graphic design to ensure your project is completed efficiently. Our team at Gmac Web India consists of dedicat
Highlights
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+14 Services
5% Mobile App Development (iOS & Android)
7% API Development & Integration
5% E-Commerce Development
5% Product UX Strategy
AI Summary
“Founded in 2019, Gmac Web India offers comprehensive digital solutions including website development, digital marketing, and graphic design, delivering quality projects across diverse sectors, chiefly e-commerce.”
NitixCode
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NitixCode specializes in creating custom websites and online stores for forward-thinking businesses that seek more than just generic templates. We manage everything from market analysis and UX/UI design to development, technical SEO, and content management—all under one roof—ensuring your site is no
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
Budapest, Budapest, Hu
Services Provided+12 Services
7% API Development & Integration
10% Custom Web Application Development
3% Product UX Strategy
2% UX Research & Usability Testing
AI Summary
“NitixCode delivers comprehensive custom website and online store solutions with integrated market analysis, UX/UI design, development, SEO, and content management, fostering long-term business growth through tailored digital strategies.”
CYBOT-X Technologies Pvt. Ltd.
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Information Technology and Cybersecurity Services
Highlights
10-49
Employees
Services Provided+3 Services
10% Custom Web Application Development
7% Mobile App Development (iOS & Android)
9% API Development & Integration
8% QA & Software Testing
AI Summary
“CYBOT-X Technologies Pvt. Ltd. specializes in information technology and cybersecurity services, delivering comprehensive solutions to enhance digital security and technological infrastructure for diverse clients.”
Trikonatech
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We create customized websites and applications that feature sleek UI/UX design, scalable development, and forward-thinking strategies, enabling your business to distinguish itself and thrive online.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Bengaluru, Karnataka, In
Services Provided+8 Services
5% Mobile App Development (iOS & Android)
8% Custom Web Application Development
5% API Development & Integration
2% E-Commerce Development
AI Summary
“Trikonatech specializes in creating customized websites and applications with sleek UI/UX design and scalable development, providing forward-thinking solutions to enhance business success online.”
JITO
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At Jito, we go beyond being just a team; we are your collaborators in developing cutting-edge digital solutions. Our dedicated team of over 20 experts focuses on turning obstacles into innovative digital products, guiding you from the initial idea to final execution. **Core Industries:** AI, FinTe
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+10 Services
5% Frontend Development
5% Backend Development
7% SaaS Product Development
7% Custom Web Application Development
AI Summary
“JITO delivers innovative digital products by integrating advanced AI technologies, custom software development, and user-centric UX/UI design, supporting startups and businesses globally across AI, FinTech, and Web3 sectors.”
SoftronicLabs
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SoftronicLabs is a leading software services firm that focuses on custom software development, cloud services, and thorough IT consulting across various sectors. We collaborate with companies—ranging from dynamic startups to well-established businesses—to create, develop, and implement scalable tech
Highlights
< $25/hr
Avg Hourly Rate
2-9
Employees
Bhogadi, Karnataka, In
Services Provided+9 Services
6% Mobile App Development (iOS & Android)
4% E-Commerce Development
3% Legacy System Modernization
5% API Development & Integration
AI Summary
“SoftronicLabs delivers custom software development, cloud services, IT consulting, and digital transformation to diverse clients, emphasizing scalable, tailored technology solutions and strong partnerships.”
AR Technolabs
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AR Technolabs is your comprehensive partner for web, mobile, and digital marketing consultation. We manage every phase, from the initial idea to design, development, integration, implementation, and ongoing maintenance. Our complete range of services ensures that your digital visions become a realit
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Ahmedabad, Gujarat, In
Services Provided+10 Services
3% API Development & Integration
7% Custom Web Application Development
6% Mobile App Development (iOS & Android)
4% Backend Development
AI Summary
“AR Technolabs provides end-to-end digital solutions including web and mobile development, software design, and digital marketing, delivering scalable, customized technology services worldwide.”
Techniverse Software Consulting Pvt. Ltd.
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At Techniverse Software Consulting Pvt. Ltd., we have a dedicated team of enthusiastic and innovative IT engineers. We have a deep understanding of the Agile SDLC methodology, covering all phases from concept and inception to iteration, release, and maintenance. The combination of our skills, divers
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Rajkot, Gujarat, In
Services Provided+6 Services
5% E-Commerce Development
5% Custom Web Application Development
8% Mobile App Development (iOS & Android)
2% API Development & Integration
AI Summary
“Techniverse Software Consulting Pvt. Ltd. delivers comprehensive IT solutions including mobile and web app development, UI/UX design, quality assurance, and technical support, ensuring timely, high-quality product delivery.”
CometForge
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CometForge is an agile tech firm focused on advanced software services and innovative products. We specialize in developing scalable solutions such as website design, e-commerce systems, AI/ML integrations, and customized SaaS applications. Committed to outstanding quality, our team equips businesse
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
10% Mobile App Development (iOS & Android)
18% Custom Web Application Development
8% API Development & Integration
15% SaaS Product Development
AI Summary
“CometForge is a dynamic technology company delivering advanced software services and innovative, scalable solutions including AI, e-commerce, and custom SaaS applications to drive business growth and innovation.”

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Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

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