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

Pixzelle Studio
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
From concept to creation. We offer software development, mobile applications, artificial intelligence, cloud infrastructure, and specialized product teams for businesses operating with a serious approach, no matter where they are located globally.
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Ciudad de Mexico, Mexico City, Mx
Services Provided+19 Services
2% QA & Software Testing
5% Mobile App Development (iOS & Android)
3% API Development & Integration
2% E-Commerce Development
AI Summary
“Pixzelle Studio delivers comprehensive software solutions including mobile apps, AI, cloud infrastructure, and dedicated product teams to support serious businesses worldwide with end-to-end development expertise.”
isprint
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Our journey started in 2018 as a specialized technology division of PHC Global. By 2025, we had contributed to over 50 projects and created innovations in healthtech, edtech, AI/ML, and data analytics. Acknowledging our expanding expertise, we established iSprint as an independent company dedicated
Highlights
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+3 Services
10% Mobile App Development (iOS & Android)
11% Custom Web Application Development
4% API Development & Integration
25% Business Intelligence (BI) Dashboard Development
AI Summary
“iSprint, an independent company since 2025, specializes in innovative web, mobile, AI, and data analytics solutions, emphasizing curiosity, precision, and collaborative co-creation for adaptive technologies.”
Wise Accelerate
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Wise Accelerate is an expanding technology partner that provides impactful software development and AI-based solutions to clients worldwide. We create robust engineering teams that assist businesses in scaling effectively, updating their systems, and speeding up digital transformation. Our company c
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Hanoi, Vn
Services Provided+17 Services
9% Custom Web Application Development
3% QA & Software Testing
6% Legacy System Modernization
3% Code Review & Technical Audits
AI Summary
“Wise Accelerate is a global technology partner delivering software development and AI solutions, fostering engineering excellence and driving clients' digital transformation with collaborative, ownership-driven teams.”
TeloPak Agence Digitale
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
TeloPak Agence Digitale is a diverse tech and creative powerhouse focused on turning ambitious concepts into leading digital products. We offer comprehensive solutions that blend strategic insights, advanced technology, and top-notch design. Our extensive range of services encompasses: Software Engi
Highlights
$5,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Thionville, Fr
Services Provided+11 Services
4% Legacy System Modernization
8% Custom Web Application Development
3% API Development & Integration
5% UX Research & Usability Testing
AI Summary
“TeloPak Agence Digitale delivers comprehensive digital solutions, integrating software engineering, UI/UX design, branding, marketing, and video editing to drive business growth and innovation.”
Kpyxal Solutions LLP
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Kpyxal Solutions LLP is a comprehensive ecommerce solutions provider focused on creating, developing, and integrating websites using Magento and Laravel. We leverage the latest insights to optimize your online store for higher conversion rates and to enhance customer retention. We also offer persona
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Services Provided+3 Services
20% E-Commerce Development
10% Custom Web Application Development
3% API Development & Integration
14% Search Engine Optimization (SEO)
AI Summary
“Kpyxal Solutions LLP specializes in ecommerce development, digital marketing, and UX design, delivering tailored Magento and Laravel solutions that enhance online performance, visibility, and user engagement.”
centocode-technologies
View Profile
Is this your business? Become an Edverise partner & Claim Now
We have faith in the transformative impact of excellence. We create it with careful attention to detail, making sure every aspect is fine-tuned for peak performance and efficiency. Our commitment to excellence goes beyond the technical side. We recognize that outstanding service defines a genuine pa
Highlights
Gurugram, Haryana, In
Services Provided+4 Services
10% Mobile App Development (iOS & Android)
11% Custom Web Application Development
4% API Development & Integration
13% Product UX Strategy
AI Summary
“Centocode Technologies excels in delivering meticulously crafted, high-quality solutions combined with personalized support, fostering genuine partnerships that drive business growth and operational efficiency.”
AVASOFT
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
AVASOFT is a next-generation product company focused on accelerating digital transformation for businesses and consumers by leveraging modern workplace solutions, data science, mobility, and cloud technology. Headquartered in Pennsylvania, with additional offices in Malaysia and India, we design our
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
250-999
Employees
Blue Bell, Pennsylvania, Us
Services Provided+14 Services
4% API Development & Integration
9% Custom Web Application Development
5% Mobile App Development (iOS & Android)
5% ERP & CRM Development
AI Summary
“AVASOFT accelerates digital transformation through scalable workplace solutions, data science, cloud technology, and mobility, delivering cost-effective, customized products with proven global success and expert leadership.”
Kerss Technology
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Kerss Technology – Turning Ideas into Scalable Software Solutions At Kerss Technology, we focus on creating innovative, scalable, and dependable web solutions that help businesses thrive in the digital landscape. Whether you're a startup seeking to launch your minimum viable product (MVP) or an es
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
2-9
Employees
Services Provided+5 Services
10% Custom Web Application Development
7% Mobile App Development (iOS & Android)
7% SaaS Product Development
5% E-Commerce Development
AI Summary
“Kerss Technology delivers innovative, scalable web and mobile software solutions, specializing in custom development, SaaS, e-commerce, UI/UX design, and digital transformation for global clients.”
Digitalhype
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Our value proposition includes the following: We offer information technology services to international clients in the Healthcare, IoT, Fintech, and Ecommerce sectors, among others, helping them create digital products with teams composed of top-tier talent. Our team members possess both technical a
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Aguascalientes, Aguascalientes, Mx
Services Provided+20 Services
3% API Development & Integration
3% Frontend Development
2% Mobile App Development (iOS & Android)
3% E-Commerce Development
AI Summary
“Digitalhype delivers high-quality IT services across Healthcare, IoT, Fintech, and Ecommerce sectors, combining skilled teams, timely communication, and cost-effective solutions close to US clients.”
Sybrid Private Limited
View Profile Visit Website
Is this your business? Become an Edverise partner & Claim Now
Sybrid (Pvt) Ltd., part of the Lakson Group, is a prominent IT solutions and BPO provider founded in 2008. Based in Pakistan, with a significant presence in the USA and UAE, Sybrid enhances business operations through a range of technology-based services. Their extensive offerings include: Managed I
Highlights
1000-9999
Employees
Karachi, Sindh, Pk
Services Provided+20 Services
6% Custom Web Application Development
6% Mobile App Development (iOS & Android)
2% API Development & Integration
3% Search Engine Optimization (SEO)
AI Summary
“Sybrid Private Limited, part of Lakson Group, delivers comprehensive IT, BPO, healthcare, digital marketing, and software solutions with global reach, supporting diverse industries and innovative technology products.”

...

...

...

Latest insights & expert perspectives

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

Stated minimum project sizes among the firms listed under software development services on Edverise, with the $50,000 band shaded

Vendor Selection

Questions to Ask a Software Development Agency: Six With Proof

A vetting script for second-round agency calls: six questions, the document each answer has to produce, and what a directory listing or a badge really proves.

Nihar Ranjan Rout

10/31/2026

Three software development quotes of $38,000, $94,000 and $210,000 converted to effective hourly rates of $79, $73 and $87.50

Vendor Selection

How to Compare Software Development Quotes Priced 5x Apart

Three bids for the same build are rarely comparable as written. A normalization checklist, a weighted grid adapted from FAR Part 15.3, and the hourly arithmetic.

Akash Mohapatra

10/31/2026

Chart of minimum project size stated by firms listed under AI agent development on Edverise, with the $50,000 band highlighted

Vendor Selection

AI Agent Development Cost: Build, Tokens, Reliability

An AI agent has three costs. Compute the monthly token bill from published list prices, then set the build quote against what listed firms actually charge.

Santanu Prasad Sahoo

10/31/2026

Check All Our Blogs

One Platform. One Promise. One Trust.

Edverise is building the trusted way to find tech vendors. List your company early, or talk to us about backing the platform.

Top API Development & Integration Firms

List of the Best API Development & Integration Agencies

Where buyers look next

Latest insights & expert perspectives

Questions to Ask a Software Development Agency: Six With Proof

How to Compare Software Development Quotes Priced 5x Apart

AI Agent Development Cost: Build, Tokens, Reliability

One Platform. One Promise. One Trust.