What is contract testing in API development?

Contract testing is a methodology used to ensure that two services (a provider and a consumer) share a common understanding of their API interface, preventing integration failures.

Can this skill identify breaking changes?

Yes, it specifically includes functionality to check for backward compatibility, alerting you to any changes that would break existing API integrations.

Does it support OpenAPI specifications?

Yes, it validates API requests and responses against provided OpenAPI documentation to ensure your implementation matches your design.

How does this skill use Pact?

The skill generates Pact consumer contracts and provider verification tests to ensure that the API provider meets the specific expectations of its consumers.

API Contract Testing & Validation

Name: API Contract Testing & Validation
Author: jeremylongshore

byjeremylongshore

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884

Security & Testing

Validates API contracts and ensures service compatibility using consumer-driven testing and OpenAPI specifications.

About

This skill empowers Claude to automate the creation and validation of API contracts, ensuring seamless communication between service providers and consumers. By leveraging Pact for consumer-driven contract testing and OpenAPI for strict specification compliance, it helps developers identify breaking changes early, generate provider verification tests, and maintain backward compatibility throughout the development lifecycle.

Key Features

884 GitHub stars
Automated Pact contract generation
OpenAPI specification validation
Provider verification test creation
Consumer-driven contract testing (CDCT)
Backward compatibility checking

Use Cases

Preventing breaking changes during API updates
Validating API responses against OpenAPI specs
Generating consumer-driven contract tests with Pact

About

Key Features

884 GitHub stars
Automated Pact contract generation
OpenAPI specification validation
Provider verification test creation
Consumer-driven contract testing (CDCT)
Backward compatibility checking

Use Cases

Preventing breaking changes during API updates
Validating API responses against OpenAPI specs
Generating consumer-driven contract tests with Pact