API Testing Services

Leading API Testing Since 2013: Proven Expertise

BIT Studios has been a trusted QA partner in API testing services for over a decade. Ensuring the entire system of your software application functions flawlessly, we bring unparalleled quality and efficiency to our clients’ digital landscapes.

API Testing Services

Building Success with Leading Brands

BIT Studios API Testing Services

Line Chart APIAPI Performance Testing
Custom Web Application DevelopmentAutomated API Testing
Shield LockAPI Security Testing
Puzzle APIAPI Integration Testing
Database ArrowsData Driven API Testing
API Documentation Testing

Web API Testing Services

Soap APISOAP API Testing
GraphQL API Testing

Specialized API Testing Services

DDoS ProtectionRuntime Error Detection
Backward Arrow BugRegression Testing
Application TestingCompliance Testing
Gear WrenchFunctional Testing
GaugeLoad Testing
Globe Magnifying GlassLocalization Testing
Web Browser Smoke SymbolSmoke Testing
Linear PathwayEnd-to-End Testing
BalanceBoundary Testing
Full StackAPI Versioning Testing
Device Tablet InteractiveAPI Usability Testing

Experience seamless API Testing with BIT Studios’ expertise.

Why API Testing Matters: Key Advantages for Your Software

A Glimpse into Our Vast API Testing Projects

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Our Awards and Recognitions

What Our Happy Clients Say

Why Choose BIT Studios for API Testing Services

29+ Years of ExperienceWith over ten years of expertise, BIT Studios has been at the forefront of the API testing landscape.
MicroscopeWe employ cutting-edge API testing tools, ensuring unparalleled precision and efficiency.
PuzzleOur specialists are adept in diverse API protocols, addressing unique industry requirements.
Cost-Effective, Risk-Free ProcessSystem performance is paramount to us, ensuring robust and high-speed applications.
RobotWe excel in automating API testing, delivering prompt results without sacrificing quality.
TrophyOur rich history and proven track record speak to our unwavering commitment to excellence.

Let’s map out your API Testing journey together.

Connect with BIT Studios.

Our Collaboration Approaches for API Testing

BIT Studios API Test Methodologies

BIT Studios Guide to Our API Test Process

At BIT Studios, we’ve meticulously created a flexible approach to ensure every aspect of your API performs optimally. We customize our process depending on the methodology we use. Here’s a detailed breakdown of our process:


Requirement Analysis

  • Understand the client’s business goals and API objectives
  • Define the scope and boundaries of the API test
  • Identify the primary API functions and associated data
  • Analyze which API testing requires specific configurations or scenarios

Test Planning

  • Design a test strategy outlining the testing objectives and resources
  • Select suitable API testing tools based on project requirements
  • Allocate tasks to QA professionals with specific expertise
  • Establish a timeline and set milestones for the testing phase

Test Design and Setup

  • Define and prepare the test environment to secure configurations
  • Create detailed test cases, providing comprehensive coverage
  • Set up data repositories and logging mechanisms for test runs
  • Determine metrics to be collected during the testing process

Test Execution

  • Initiate automated or manual test runs as per the plan
  • Capture and log any anomalies or defects detected
  • Monitor system performance during the tests to identify bottlenecks
  • Ensure every test scenario identified during the analysis is executed

Result Analysis and Reporting

  • Collect and analyze the test results against predefined metrics
  • Identify any deviations from the expected API behavior
  • Document insights, including performance graphs and defect details
  • Share a comprehensive report with stakeholders highlighting the findings

Feedback and Iteration

  • Gather feedback from the development team on the reported defects
  • Re-run tests after defect fixes to ensure robustness.
  • Adjust test cases if new requirements emerge or changes are implemented
  • Repeat the testing cycle until the API meets the set standards

Our Tech Stack: Driving Excellence in API Tests

Test Automation Frameworks & Tools

Postman is an enterprise API platform for developers


An essential tool for API endpoint testing, allowing both manual and automated testing.

SoapUI is an open-source web service testing application for Simple Object Access Protocol and representational state transfers


Designed specifically for SOAP and REST API testing, offering comprehensive testing features.

The Apache HTTP Server is a free and open-source cross-platform web server software, released under the terms of Apache License 2.0. It is developed and maintained by a community of developers under the auspices of the Apache Software Foundation.


While primarily known as a performance testing tool, JMeter is versatile and extensively used for API testing.

REST Assured


A Java library crafted for validating REST services, ensuring seamless integration with Java projects.

API Mocking and Service Virtualization

WireMock is a tool for building mock APIs.


This flexible library lets developers stub and mock web services during development.

MockServer is an open source mocking framework for HTTP and HTTPS released under the Apache License.


A versatile tool that mimics any server or service, making testing against mock data easy.

Swagger Doc - A framework for API specification that includes a suite of tools for auto-generating documentation, client SDK generation, and API testing.


Besides offering API design tools, Swagger features a mock server to simulate API responses.

Performance Testing

loader.io is a cloud-based load and scalability testing service SaaS that allows developers to test their web applications and API with thousands of concurrent connections.


This cloud-based tool offers robust performance testing designed explicitly for APIs.

BlazeMeter is a continuous testing platform that was acquired in 2021 by Perforce Software, which is based in Minneapolis, Minnesota.


Building on the foundation of JMeter, Blazemeter offers cloud-based performance testing.

Dynatrace, Inc. is a global technology company listed on the NYSE that provides a software intelligence platform based on artificial intelligence and automation.


These tools specialize in monitoring application performance, providing insights into bottlenecks and inefficiencies.

Security Testing

OWASP ZAP is an open-source web application security scanner


A trusted tool in the security community, ZAP identifies vulnerabilities in web applications.

Burp Suite

Burp Suite

A comprehensive toolset tailored for web application security testing, offering automated and manual testing functionalities.

CI/CD Integration



As an open-source automation server, Jenkins is a pillar in continuous integration efforts.

Travis CI

Travis CI

This cloud-based platform streamlines continuous integration for software development projects.

Circle CI


A platform known for its robust continuous integration and delivery features.

API Documentation and Collaboration

Swagger Doc - A framework for API specification that includes a suite of tools for auto-generating documentation, client SDK generation, and API testing.

Swagger / OpenAPI

This framework specifies APIs and auto-generates interactive documentation, making developer collaboration more efficient.

Redoc is an open-source tool for generating documentation from OpenAPI (fka Swagger) definitions.


Specializing in rendering OpenAPI specifications, Redoc offers interactive API documentation.

API Monitoring

Runscope is a SaaS-based company that sells software for API performance testing, monitoring and debugging.


This tool monitors APIs, checking for uptime, performance, and data validation.

Assertible enables businesses of all shapes and sizes to confidently monitor the quality and stability of their APIs, allowing for faster iteration and development cycles without compromising correctness in the applications.


Designed to automate QA, Assertible excels in post-deploy testing and consistent API monitoring.

Precision API Test Coverage for Every Industry

Software Development for Real Estate | software and mobile app solutionsReal Estate
Software Development for Healthcare | software and mobile app solutionsHealthcare
Telecommunications Software Development | software and mobile app solutionsTelecommunications
Software Development for ManufacturingManufacturing
Software Development for InsuranceInsurance
Business and productivity software and mobile app solutionsBusiness and Productivity
distribution software and mobile app solutionsDistribution
Oil and Gas Software DevelopmentOil and Gas
agronomy software development | software and mobile app solutionsAgriculture
construction software and mobile app solutionsConstruction
Software Development for Automotive | software and mobile app solutionsAutomotive