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.

How this list is built

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

Azorics
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At Azorics, we focus on providing innovative, high-performance software solutions that enable businesses to evolve, improve, and grow in the digital era. Our goal is to connect technology with business objectives, allowing organizations to leverage modern software for tangible success. We take pride
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+2 Services
20% API Development & Integration
23% Custom Web Application Development
7% Mobile App Development (iOS & Android)
25% Product UX Strategy
AI Summary
“Azorics delivers innovative, scalable software solutions and digital transformation services across industries, enabling businesses to enhance operations, engage customers, and drive sustainable growth.”
InfoLake LLC
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Established in 2017, InfoLake has reliably delivered satisfactory services to its business clients to help them achieve their objectives more quickly.
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Diamond Bar, California, Us
Services Provided+1 Services
25% Custom Web Application Development
20% Mobile App Development (iOS & Android)
20% API Development & Integration
20% E-Commerce Development
AI Summary
“InfoLake LLC, founded in 2017, provides dependable business services aimed at accelerating client goal achievement through consistent and satisfactory solutions across various domains.”
Metastic World
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At Metastic World Pvt Ltd, we don't merely follow technology trends; we are at the forefront of creating them. Our cutting-edge IT solutions aim to advance your business into the future, helping you maintain a competitive edge. We focus on Web, App, Software, and Game Development, as well as Digital
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Noida, Uttar Pradesh, In
Services Provided+1 Services
15% Mobile App Development (iOS & Android)
18% Custom Web Application Development
12% API Development & Integration
5% E-Commerce Development
AI Summary
“Metastic World Pvt Ltd leads in innovative IT solutions across web, app, software, game development, and digital marketing, empowering businesses to stay competitive and future-ready.”
Comfygen Technologies
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We create your next idea with revenue-generating web and mobile applications. Comfygen is a leading development company specializing in building strong web and mobile apps tailored to meet the needs of both businesses and end-users. Our team of over 150 skilled developers and marketers is adept at d
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Jaipur, Rajasthan, In
Services Provided+2 Services
13% Mobile App Development (iOS & Android)
8% API Development & Integration
7% E-Commerce Development
10% Custom Web Application Development
AI Summary
“Comfygen Technologies develops innovative web and mobile applications across diverse industries, leveraging technologies like Blockchain, AI, and IoT to deliver tailored, revenue-generating solutions for businesses and users.”
Ezcloudllc
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Ezcloudllc is a leading IT solutions provider located in Brooklyn, NY, specializing in customized technology services to cater to various business requirements. Known for our expertise in e-commerce platforms such as Amazon, Walmart, eBay, Shopify, and Odoo, we also offer tailored software solutions
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Woodbury, Minnesota, Us
Services Provided+2 Services
15% Custom Web Application Development
18% E-Commerce Development
10% API Development & Integration
5% Backend Development
AI Summary
“Ezcloudllc is a Brooklyn-based IT firm delivering customized e-commerce, software, and automation solutions with expertise in platforms like Amazon, Walmart, Shopify, and Odoo, fostering business growth.”
Designoweb Technologies
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A comprehensive Full Stack Development Team that offers cutting-edge solutions for mobile, web, and wearable technologies, utilizing advancements such as AR, VR, the Metaverse, IoT, and Generative AI. We are the visionaries shaping the future of digital experiences, creating websites and application
Highlights
$25,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Flower Mound, Texas, Us
Services Provided+2 Services
28% Mobile App Development (iOS & Android)
7% E-Commerce Development
15% API Development & Integration
25% Generative AI
AI Summary
“Designoweb Technologies is a full stack development team specializing in innovative mobile, web, and wearable solutions utilizing AR, VR, Metaverse, IoT, and AI to enhance digital experiences.”
AltronixSoft
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AltronixSoft is an information technology firm focused on software development and consulting services. We support clients in the US and EU in turning their concepts into reality through comprehensive software solutions. What sets us apart from other companies is our careful analysis of our clients'
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Tallinn, Harju, Ee
Services Provided+2 Services
13% E-Commerce Development
15% API Development & Integration
17% Custom Web Application Development
5% Legacy System Modernization
AI Summary
“AltronixSoft is an IT firm offering tailored software development and consulting services in the US and EU, focusing on client needs and delivering customized, effective solutions.”
Heligon Systems
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Discover our wide range of services for digital transformation. We provide everything from strategic consulting to web and mobile app development, all aimed at helping you advance.
Highlights
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+1 Services
20% API Development & Integration
30% Mobile App Development (iOS & Android)
20% Product UX Strategy
15% Mobile App UI Design
AI Summary
“Heligon Systems specializes in digital transformation, offering strategic consulting and expertise in web and mobile app development to support business advancement across industries.”
White Cloak Technologies, Inc.
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White Cloak is a software development firm that designs personalized digital solutions to enhance your business. Founded in 2014, White Cloak has been aiding businesses in their growth and performance improvement by providing software specifically tailored to meet their objectives.
Highlights
50-249
Employees
Pasig, Metro Manila, Ph
Services Provided+1 Services
9% API Development & Integration
17% Custom Web Application Development
8% Mobile App Development (iOS & Android)
33% Managed IT Services
AI Summary
“White Cloak Technologies, Inc. specializes in developing customized software solutions to help businesses enhance growth and improve performance, aligning technology with client objectives since 2014.”
Protonshub Technologies
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Protonshub Technologies is a premier company specializing in AI and blockchain development, with a global reach that includes locations in India, Dubai, Sweden, and the USA. Our team of over 200 skilled developers focuses on providing state-of-the-art solutions in artificial intelligence, blockchain
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Indore, Madhya Pradesh, In
Services Provided+7 Services
13% Custom Web Application Development
15% Mobile App Development (iOS & Android)
13% API Development & Integration
10% Blockchain & Web3 Development
AI Summary
“Protonshub Technologies delivers advanced AI, blockchain, mobile, and web development services globally, offering innovative, scalable, and secure solutions tailored to business needs for digital transformation.”

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Latest insights & expert perspectives

Explore data-backed surveys with inputs from top industry experts.

Minimum project sizes stated by UX audit firms listed on Edverise, with the no-minimum and $1,000 bands shaded

Vendor Selection

UX Audit Cost: Price Tables Say $8,000, Most Firms Start Lower

Agency tables put a full UX audit at $8,000 and up. 60% of 3,038 listed audit firms state a $1,000 minimum or none. Here is what to pay and what to demand.

Akash Mohapatra

11/9/2026