Testing & QA
Mock Service Worker Local API Mocking
Explore this developer service’s ongoing no-cost allowance, restrictions and official documentation before deploying.
MIT-licensed browser and Node.js API mocking library for REST, GraphQL and other network requests; no vendor-imposed mock-handler, request or test-run quota for the local package.
Plan details
What do these plan and deployment labels mean?
- Plan
- Ongoing free allowance
- Deployment model
- Local / embedded
- Credit card
- Not required
- Commercial use
- Allowed
- Added to directory (UTC)
- 2026-11-04
- Last checked
- 2026-11-03
Important restrictions
Mocks run in your app or test environment; no managed mock API hosting or persistent cloud service is included. Your own test infrastructure and any external network dependencies may cost money. Consult the versioned MSW docs when upgrading handlers or request interception.
Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.