Contract Testing using OpenAPI Specs as Executable Contracts

When Downstream Services Lag: Designing Reliable APIs with 202 responses As systems get distributed, synchronous calls to downstream services become fragile. When a downstream service

When Dependencies Timeout: Engineering Tests that Produce a 429 response Simulating backend slowdowns and verifying that your API returns a proper 429 response is a

Table of Contents In this walkthrough we'll show how to use Specmatic MCP server for API testing (Contract and Resiliency) and Mocking as a guardrail

API resiliency testing: how to keep your services standing when dependencies fail The fragile truth about modern systems Resiliency matters, and yet we still underestimate

Table of Contents Mastering Testing AWS Lambda Functions with LocalStack and Specmatic With fast-evolving data ecosystems, building reliable and scalable data products is essential. One

Exploring the challenges and limitations of using Pact for contract testing in a microservices environment.  In the domain of microservices, ensuring seamless communication between different

Imagine turning a plain-English business requirement into a working API without writing a single line of code. That is the promise of modern natural-language driven

Table of Contents API workflow testing with Arazzo and Specmatic: Visual authoring, workflow mocking, and backend verification Here we'll walk through a practical approach to

Understanding the Shortcomings of gRPC and How Contract Testing Can Bridge the Gap  In the ever-evolving world of API design, development, and testing, the pursuit

We recently shared a hands-on walkthrough with Specmatic where we explored practical approaches for Testing MCP servers, and in this post we want to expand