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

Headbase IT Solution
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At Headbase IT Solutions, established in 2018, our experienced team boasts over 8 years in the industry. We specialize in a range of IT services, including graphic design, responsive web design, website development, e-commerce site creation, professional logo design and branding, domain registration
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Surat, Gujarat, In
Services Provided+9 Services
12% Custom Web Application Development
5% Mobile App Development (iOS & Android)
3% API Development & Integration
8% CRM Consulting and SI
AI Summary
“Headbase IT Solutions, founded in 2018, provides comprehensive IT services including web and graphic design, branding, hosting, and digital marketing, emphasizing innovation, user-friendly solutions, and transparency.”
Spyk Technolohy
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Spyk Technology is a results-oriented IT firm that provides web and mobile app development, as well as SEO services. We create scalable, high-performance digital solutions designed to assist businesses in generating leads, enhancing their online presence, and attaining long-term growth.
Highlights
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
8% E-Commerce Development
13% Mobile App Development (iOS & Android)
5% API Development & Integration
15% Mobile App UI Design
AI Summary
“Spyk Technology is an IT firm specializing in scalable web and mobile app development and SEO, delivering digital solutions that enhance online presence, generate leads, and support business growth.”
BYTELARK PRIVATE LIMITED
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BYTELARK PRIVATE LIMITED is an agile technology and digital solutions firm committed to fostering business growth through innovative, scalable, and results-oriented digital services. Founded in 2026 and based in Kochi, Kerala, the company operates as a private limited entity under the Companies Act,
Highlights
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
9% Custom Web Application Development
8% Mobile App Development (iOS & Android)
5% E-Commerce Development
4% API Development & Integration
AI Summary
“BYTELARK PRIVATE LIMITED delivers innovative, scalable digital solutions including web and app development, UI/UX design, cloud services, and digital marketing to enhance business growth and efficiency.”
7pixs
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7pixs is a tech-focused company established in 2025, committed to offering innovative and dependable digital solutions for businesses of all sizes. Our dedicated team of developers and designers is skilled in creating modern web applications, mobile apps, and custom software tailored to specific bus
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
8% E-Commerce Development
4% API Development & Integration
9% Custom Web Application Development
5% Mobile App Development (iOS & Android)
AI Summary
“7pixs, founded in 2025, delivers innovative, tailored digital solutions including web, mobile apps, e-commerce, and custom software, focusing on client collaboration and measurable business growth.”
LyteHosting LLC
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LyteHosting is a technology firm based in the US that offers advanced web hosting, mobile app development, website design, and AI automation solutions to businesses around the globe. With a client base exceeding 10,000 and a strong reputation for reliability and performance, we enable both startups
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+8 Services
13% Mobile App Development (iOS & Android)
10% Custom Web Application Development
3% API Development & Integration
3% Product UX Strategy
AI Summary
“LyteHosting LLC is a US-based technology company providing reliable web hosting, mobile app development, website design, and AI automation solutions to global businesses for growth and efficiency.”
kyiv.solutions
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We specialize in software development and can research, design, create, and tailor a variety of software applications, such as desktop applications, mobile apps, websites, APIs, and embedded software for microcontrollers. Our expertise spans several areas of computing, including information security
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided+8 Services
6% Custom Web Application Development
6% Mobile App Development (iOS & Android)
5% API Development & Integration
4% CMS Development & Customization
AI Summary
“Kyiv.solutions develops diverse software solutions including desktop, mobile, web, APIs, and embedded systems, with expertise in AI, security, distributed computing, and system programming.”
H
Huzam Hussain
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I have more than four years of experience as a product developer.
Highlights
< $25/hr
Avg Hourly Rate
Services Provided+3 Services
12% Custom Web Application Development
10% API Development & Integration
5% E-Commerce Development
7% Mobile App Development (iOS & Android)
AI Summary
“Huzam Hussain is a product developer with over four years of experience, demonstrating broad capabilities in designing and developing various products across sectors.”
WebAppetize Technologies
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We are a group of self-taught and experienced professionals passionate about open source. We develop tailored software, websites, and mobile applications to enhance your business. Our business intelligence platform empowers owners to make data-driven decisions.
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+6 Services
6% Mobile App Development (iOS & Android)
8% Custom Web Application Development
5% Backend Development
4% API Development & Integration
AI Summary
“WebAppetize Technologies develops customized software, websites, and mobile apps, offering an open-source driven business intelligence platform to support data-driven decision-making for businesses.”
Dadtech
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Nous offrons des solutions sur mesure pour vos projets de développement web et mobile. Que vous ayez besoin d'un site vitrine, d'une boutique en ligne avec un système de gestion, ou d'une application mobile personnalisée, je vous accompagne tout au long du processus, de la conception à la réalisatio
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+3 Services
12% Mobile App Development (iOS & Android)
12% Custom Web Application Development
7% Backend Development
3% API Development & Integration
AI Summary
“Dadtech delivers tailored web and mobile development solutions, including e-commerce, CRM, and custom applications, offering end-to-end support from design to deployment.”
Instincts
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At our foundation, we are an agile team of eight talented professionals, including developers, UI/UX designers, data analysts, SEO experts, and product managers. Our goal is to serve as your comprehensive resource for digital excellence. We provide a wide range of services customized to meet your ne
Highlights
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+6 Services
15% Custom Web Application Development
13% Mobile App Development (iOS & Android)
5% API Development & Integration
15% E-Commerce Development
AI Summary
“Instincts is a skilled eight-member team delivering tailored digital solutions—websites, apps, e-commerce platforms, and maintenance services—focused on enhancing online presence and performance.”

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Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

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