API Testing Services - DeviQA
DeviQA Logo

API Testing Services

Ensure that your API is defined and implemented correctly before you publish it

5.0

37 reviews

Software testing company with 5-star reviews on Clutch, GoodFirms, and G2.

Years on the market

14 +

Software QA engineers

200 +

Locations

6

Projects tested from scratch

300 +

Integrations into an existing development & testing process

200 +

Clients over the globe

300 +

Developing an API can empower a business with increased flexibility, collaboration opportunities, innovation, and the ability to adapt to changing market demands. It's a strategic investment that can contribute to the overall growth and competitiveness of a business in today's interconnected digitalized world. However, like any piece of software, an API requires rigorous testing to ensure it adheres to the given requirements. That's where our API Testing Services come in, ensuring all the aspects of your API meet the highest standards.

Our Solutions For Your API Testing Challenges

At DeviQA, we understand the intricacies of API testing and the challenges that come with it. Our expertise lets us address all these challenges efficiently, propelling your development and quality assurance processes forward. Here are some common API testing challenges and the ways we tackle them:

Dependency on External Services

Challenge

Modern APIs may depend on external services that are not always available or reliable during testing. This poses a serious challenge.

Solution

We simplify test configuration through automation. Our experts provide user-friendly tools that enable you to effortlessly set up test environments. With our solutions, you can save time and eliminate errors associated with manual configurations.

Data Sensitivity

Challenge

Testing APIs often involves sensitive data, making it challenging to create realistic test scenarios without exposing sensitive information.

Solution

Our QA experts leverage mock servers or stubs to simulate external services. In such a way testing is executed in controlled environments without relying on the availability of external dependencies.

Security Vulnerabilities

Challenge

Identifying and addressing security vulnerabilities is critical but challenging.

Solution

We conduct thorough security testing, including penetration testing, and regularly update security measures collaborating with security experts to ensure a robust security posture.

The Scope of Our API Testing Services

Executing a wide range of tests both manual and automated, DeviQA’s experts check diverse aspects of API operations.

API Functional Testing

Ensure that your API functions as intended by thoroughly testing its individual components and functionalities. We validate inputs, outputs, and expected behaviors to detect any issues early in the development process.

API Performance Testing

Optimize the speed and efficiency of your API with performance testing. We evaluate response time, scalability, and resource usage to identify and address bottlenecks, ensuring your API can handle peak loads with ease.

API Security Testing

We perform the whole scope of security tests to identify possible vulnerabilities. We check for common security issues, such as SQL injection, cross-site scripting (XSS), and proper handling of sensitive information.

API Integration Testing

Verify the smooth integration of your API with other software components. We thoroughly examine how your API interacts with third-party services, ensuring that seamless data flows.

API Fuzz Testing

Identify potential vulnerabilities in your API by subjecting it to a wide range of unexpected inputs and data formats. This method helps uncover hidden issues that might not be apparent during regular testing.

Endpoint Verification

We rigorously test each API endpoint to ensure that it accepts requests, processes them correctly, and returns expected responses. Particular attention is paid to parameters, request methods, and response status codes.

Input and Output Validation

We send requests with valid and invalid to verify that the API handles input validation correctly. Similarly, we validate the output data to ensure it matches the expected format and values.

API Documentation Testing

We validate that the API documentation is accurate and up-to-date and ensure that it provides clear instructions on how to use the API, including endpoints, parameters, authentication methods, and example requests and responses.

Partner With Us: See the Difference

Test coverage :

90%

Before
After

2.5 weeks to run regression testing

1 day to run regression testing

7 days to run smoke testing

1 day to run smoke testing

Outdated test cases

60% increase in the number of regression tests and relevant test cases

50% test coverage

90% test coverage

Supported localizations were not tested

27 localizations supported by QA engineers

No automation testing

>1500 automated test scenarios created

Read Story

Dev capacity:

+15%

Before
After

Didn’t have a formal QA process

Built smooth and well-working processes

Didn’t make automated testing

Test automation : smoke, API, UI on all supported browsers

Testing was carried out by the devs

Full coverage of the application by test cases

Read Story

Test coverage :

97%

Before
After

Existing workflow in Jira didn’t allow to understand how many bugs were left unfixed before the release and their priorities

Adjusted the Jira workflow, integrated TestRail with Jira to be able to see statisticls of the issues per release

The lack of test documentation

Developed necessary test artifacts that adhere to industry standards and are easily maintainable

No Automation test coverage

Added multithreading to run tests in parallel on 10 different threads, which reduced the time of the test run in 7 times

Read Story

Choose Your Cooperation Model

We provide a selection of three flexible and user-friendly engagement models. Just tell us about your business objectives and project requirements, and we'll help you make the right choice.

Project-based API Testing

Pay as you go and get comprehensive API testing for individual projects. Ideal for startups and small businesses, it's cost-effective and flexible and delivers quick results without long-term commitments.

Best for: Startups and Small Businesses

  • Cost-effective for one-off testing needs

  • Cost-effective for one-off testing needs

  • Minimization of risks before a main release

Go for project-based testing

Continuous API Testing

Ensure ongoing API quality and performance with our continuous testing model. Perfect for medium to large enterprises, it streamlines development, offers real-time issue monitoring, and saves time and resources.

Perfect for: Medium to Large Enterprises

  • Early bug detection

  • Improved API quality

  • Faster release cycles

  • Reduced overall testing costs

Go for continuous testing

Consulting on API Testing

Get expert guidance to optimize your API testing processes. Efficient testing and cost savings are just a consultation away. Ideal for enterprises seeking to enhance their testing practices.

Perfect for: Enterprises Seeking Optimization

  • Access to expert knowledge

  • Customized solutions

  • Efficient use of API testing resources

Go for consulting

What you get

Average time saved by implementing our multithreaded test automation

300%

Reduction in your costs by using outsourced software testing

60%

Improvement in time to market for your products and projects

35%

Accelerate development by

30%

Increase test coverage to

95%

Enhancing project quality by

60%

Feel the improvement in

3 days

Reduce bugs up to

87%

Automation faster in parallel by

56x

We serve

Our expertise and resources allow us to cover the unique needs of each project, ensuring the delivery of high-quality software that meets your requirements and business goals.

Deliver Globally

DeviQA's client base encompasses a wide range of businesses, including startups, scale-ups, and publicly listed corporations, from all corners of the globe. Our clients span the United States, the European Union, the UK, Canada, the Middle East, and Australia.

Irrespective of your location on our pale blue dot, we can help you achieve your QA goals no matter how big, small, or unique they are.

Elevate your software quality with our cutting-edge QA solutions.

Don’t let software bugs and performance issues jeopardize your reputation. Surpass your competitors with our specialized data-driven QA solutions that ensure detection and rectification of up to 95% of potential issues. Enter your business email below for a free Proof of Concept to start enhancing your software reliability today.

Here’s what people are saying about DeviQA

arrowLeft

Testing for Diabetes Care Firm

Improving testing process efficiency and remaining mindful of the client’s requirements for the project, DeviQA has been an impressive partner. The firm’s project managers have kept the engagement moving smoothly and have made sure the team is available despite working in a different time zone.

Dale Vosburgh

Dale Vosburgh

Director, Diabetes Care Firm

Read Full Review
Descript

Application Testing for Audio Editing Platform

The engagement met the expectations of the internal team, resulting in an easy to maintain testing framework. DeviQA establishes a smooth workflow through consistent communication. The team leverages their technical expertise and experience to produce quality results.

Ulf Schwekendiek

Ulf Schwekendiek

Lead Engineer, Descript

Read Full Review

SaaS System Testing for FinTech Startup

Through DeviQA’s involvement, the high-quality product has performed reliably and attracted positive customer feedback. The team’s commitment to excellence, consistent availability, and reasonable price point continue to drive success.

Raanan Tauber

Raanan Tauber

QA Manager, Tipalti

Read Full Review
arrowRight
  • 0
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

QA Tools & Platforms We Hold Expertise In

Automation Testing

Cucumber

Selenium

Appium

Mocha

Playwright

Robot Framework

Specflow

TestNG

WebdriverIO

Selenide

Calabash

Watir

Codeception

Cypress

Security Testing Tools

HCL AppScan

Nessus

NMAP

BurpSuite

Acunetix

OWASP ZAP

Metasploit

Wireshark

DBeaver

Rdp-Sec-Check

SNMPCHECK

AiR

SSLSCAN

Performance Testing Tools

JMeter

Load Runner

Visual Studio

k6

API Testing

Rest API

GraphQL

Apiary

Bluetooth Low Energy API

Apple Pay

Google Pay

Apple Maps

Fingerprint API

API Testing Tools

Postman

Swagger

Charles Proxy

Ready API

ACCELQ

Katalon Platform

REST-Assured

Database Testing

SQL Server

MySQL

Oracle

PostgreSQL

Cassandra

MongoDB

RethinkDB

Amazon S3

Redshift

DynamoDB

Amazon RDS

DocumentDB

Amplify

Lambda

Amazon EC2

Elasticache

Azure Datalake

Blob Storage

CosmosDB

SQL Database

Synapse Analytics

Google Cloud SQL

Google Cloud Datastore

Certifications

DeviQA is an ISO 9001:2015 Certified Company

ISO 9001:2015

At DeviQA, we take pride in being an ISO 9001:2015 certified company. This certification represents our unwavering commitment to maintaining the highest standards of quality in every aspect of our software testing services. With a focus on customer satisfaction, we adhere to internationally recognized quality management practices to ensure that our clients receive exceptional and reliable testing solutions. Through continuous improvement and compliance with regulatory requirements, we consistently deliver top-notch testing services that exceed our clients' expectations

DeviQA is an ISO 20000 Certified Company

ISO 20000

We understand the crucial role of IT services in modern businesses. As an ISO 20000 certified company, we excel in delivering efficient and effective IT services to our clients. Our customer-centric approach enables us to tailor our testing solutions to suit your unique requirements, ensuring a seamless integration of testing processes into your software development lifecycle. With a focus on continual service improvement, we optimize our IT Service Management practices to guarantee a smooth and satisfying experience for our valued clients

DeviQA is an ISO 27001 Certified Company

ISO 27001

The security of our clients' data is of paramount importance to us. As an ISO 27001 certified company, we go above and beyond to protect sensitive information and ensure the confidentiality and integrity of all data entrusted to us. With our robust Information Security Management System (ISMS), we implement stringent security controls, evaluate risks, and take proactive measures to safeguard against potential threats. Rest assured that partnering with us means your valuable data is handled with the utmost care and subject to the highest security standards

DeviQA is an ISTQB Certified Company

ISTQB

As a testament to our team's expertise and commitment to excellence, our software testing professionals hold the esteemed ISTQB (International Software Testing Qualifications Board) certifications. The ISTQB certification is a globally recognized standard for software testing professionals, signifying their proficiency in the latest testing methodologies, best practices, and industry standards. With ISTQB-certified experts on board, we bring a wealth of knowledge and skills to every testing project, ensuring thorough and precise testing to uncover even the most intricate software defects. Partner with us and benefit from our skilled ISTQB-certified professionals who are dedicated to elevating the quality and reliability of your software products

Awards and Recognitions

Top B2B Company by Clutch in 2022
Top 1000 Companies by Clutch in 2022
Leading Testing Provider by SoftwareTestingNews in 2021
Top Software Testing and QA Company by Superbcompanies in 2023
Finalist of the European Testing Awards in 2019
Finalist of the Software Testing & QA Awards in 2019

Collaboration Process overview

Initial Contact

During our initial call, we aim to understand your testing requirements and goals

Assessment

We evaluate your current testing process and create a tailored plan to enhance it

Proof of Concept

We offer a complimentary Proof of Concept, allowing you to experience our proficiency and expertise

Trial and evaluation of performance

We start a trial period with you, and once complete, we review the results together and discuss options

Contract Signing and Full-Scale QA Implementation

Upon mutual agreement, we move forward with the QA process by signing a contract and beginning work

Partnership with flexibility

Our engagement options give you commercial flexibility to dial up and dial down resources depending on your own needs

Let’s schedule a call

Flexible collaboration options allow you to choose the level of support that best meets your needs

Frequently Asked Questions

faq

FAQ

API testing is crucial for ensuring the functionality, reliability, and security of your API by helping you identify and resolve issues before they impact users.

    We offer a range of API testing services, including functional testing to ensure correct API behavior, security testing to identify vulnerabilities, performance testing to assess scalability, and integration testing to validate API interactions with different third-party services.

      Our testing services include thorough authentication and authorization testing. We validate token generation, assess access controls, and conduct tests to ensure that APIs handle user permissions and security measures effectively.

        Sure. We have expertise in testing APIs that rely on external services and third-party integrations. Our approach includes using mock servers or stubs to simulate external dependencies, ensuring comprehensive testing in controlled environments.

          To adhere to industry best practices and standards, we stay updated on the latest trends, use tools like Swagger or OpenAPI for documentation, and conduct testing in accordance with security protocols and regulatory requirements.