# Microcks vs Mock Service Worker (MSW)

**Leader by Vioscale score:** Mock Service Worker (MSW)

| Attribute | Microcks | Mock Service Worker (MSW) |
|---|---|---|
| **Vioscale score** | 29.9 (63% (medium)) | 58.1 (81% (high)) |
| activity.commits_last_30d | 0 | - |
| adoption.dependent_repos | 439 | 11,851 |
| adoption.github_stars | 2,520 | 18,168 |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | - |
| description.long | Microcks enables developers to generate mock APIs from specifications like OpenAPI and AsyncAPI, simulate API behavior, and run automated contract tests against implementations. It supports multiple protocols including gRPC, GraphQL, and SOAP, with customizable mock data generation and integration into CI/CD pipelines. | An API mocking library that intercepts network requests at the browser and Node.js levels, allowing consistent mock responses across testing frameworks, tools, and applications without requiring client-specific stubs or configuration. |
| integrations.count | 10 | 8 |
| integrations.list | `[{"name":"Postman"},{"name":"OpenAI"},{"name":"Keycloak"},{"name":"Backstage"},{"name":"Docker Desktop"},{"name":"OpenAPI"},{"name":"AsyncAPI"},{"name":"gRPC"},{"name":"GraphQL"},{"name":"SOAP"}]` | `[{"name":"Vitest"},{"name":"Playwright"},{"name":"Storybook"},{"name":"React Native"},{"name":"Express"},{"name":"fetch"},{"name":"axios"},{"name":"react-query"}]` |
| language.primary | JavaScript | TypeScript |
| license.spdx | MIT | MIT |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","summary":"Open source","freeTier":true,"sourceUrl":"https://microcks.io","retrievedAt":"2026-08-18T12:21:33.825Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://mswjs.io","retrievedAt":"2026-08-17T21:32:17.412Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| release.cadence_days | - | 2 |
| release.history | `[{"url":"https://github.com/biati-digital/glightbox/releases/tag/v3.3.1","date":"2025-01-21T01:02:32Z","type":"stable","version":"v3.3.1"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/glightbox%404.0.0-beta.8","date":"2024-03-31T17:26:02Z","type":"prerelease","version":"glightbox@4.0.0-beta.8"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/%40glightbox/video%401.0.0-beta.4","date":"2024-03-30T08:45:59Z","type":"prerelease","version":"@glightbox/video@1.0.0-beta.4"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/%40glightbox/image%401.0.0-beta.4","date":"2024-03-30T08:45:56Z","type":"prerelease","version":"@glightbox/image@1.0.0-beta.4"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/%40glightbox/drag-navigation%401.0.0-beta.4","date":"2024-03-30T08:45:54Z","type":"prerelease","version":"@glightbox/drag-navigation@1.0.0-beta.4"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/glightbox%404.0.0-beta.7","date":"2024-03-29T13:03:48Z","type":"prerelease","version":"glightbox@4.0.0-beta.7"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/glightbox%404.0.0-beta.6","date":"2024-03-28T13:01:06Z","type":"prerelease","version":"glightbox@4.0.0-beta.6"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/%40glightbox/video%401.0.0-beta.3","date":"2024-03-28T13:01:18Z","type":"prerelease","version":"@glightbox/video@1.0.0-beta.3"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/%40glightbox/plugin-core%401.0.0-beta.3","date":"2024-03-28T13:01:15Z","type":"prerelease","version":"@glightbox/plugin-core@1.0.0-beta.3"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/%40glightbox/keyboard-navigation%401.0.0-beta.3","date":"2024-03-28T13:01:12Z","type":"prerelease","version":"@glightbox/keyboard-navigation@1.0.0-beta.3"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/%40glightbox/image%401.0.0-beta.3","date":"2024-03-28T13:01:09Z","type":"prerelease","version":"@glightbox/image@1.0.0-beta.3"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/%40glightbox/drag-navigation%401.0.0-beta.3","date":"2024-03-28T13:01:03Z","type":"prerelease","version":"@glightbox/drag-navigation@1.0.0-beta.3"},{"url":"https://github.com/biati-digital/glightbox/releases/tag/3.2.0","date":"2022-03-12T15:34:04Z","type":"stable","version":"3.2.0"}]` | `[{"url":"https://github.com/mswjs/msw/releases/tag/v2.15.0","date":"2026-07-08T01:43:13Z","type":"stable","version":"v2.15.0"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.14.7","date":"2026-07-07T18:24:49Z","type":"stable","version":"v2.14.7"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.14.6","date":"2026-05-11T09:41:54Z","type":"stable","version":"v2.14.6"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.14.5","date":"2026-05-08T01:51:55Z","type":"stable","version":"v2.14.5"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.14.4","date":"2026-05-07T12:26:03Z","type":"stable","version":"v2.14.4"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.14.3","date":"2026-05-04T17:14:11Z","type":"stable","version":"v2.14.3"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.14.2","date":"2026-04-29T15:37:39Z","type":"stable","version":"v2.14.2"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.14.1","date":"2026-04-29T15:11:07Z","type":"stable","version":"v2.14.1"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.14.0","date":"2026-04-29T14:12:53Z","type":"stable","version":"v2.14.0"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.13.6","date":"2026-04-24T15:53:44Z","type":"stable","version":"v2.13.6"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.13.5","date":"2026-04-23T01:46:05Z","type":"stable","version":"v2.13.5"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.13.4","date":"2026-04-16T16:25:47Z","type":"stable","version":"v2.13.4"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.13.3","date":"2026-04-14T01:44:10Z","type":"stable","version":"v2.13.3"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.13.2","date":"2026-04-08T11:18:18Z","type":"stable","version":"v2.13.2"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.13.1","date":"2026-04-07T18:14:15Z","type":"stable","version":"v2.13.1"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.13.0","date":"2026-04-06T12:37:48Z","type":"stable","version":"v2.13.0"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.12.14","date":"2026-03-21T01:42:04Z","type":"stable","version":"v2.12.14"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.12.13","date":"2026-03-17T11:36:51Z","type":"stable","version":"v2.12.13"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.12.12","date":"2026-03-17T01:42:36Z","type":"stable","version":"v2.12.12"},{"url":"https://github.com/mswjs/msw/releases/tag/v2.12.11","date":"2026-03-15T19:07:45Z","type":"stable","version":"v2.12.11"}]` |
| security.scorecard | 2.9 | 6.2 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=glightbox&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=msw&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (API Mocking)

| Capability | Microcks | Mock Service Worker (MSW) |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Mocking mode | - | - |
| Stateful scenarios | - | - |
| Fault chaos injection | - | - |
| Openapi import | - | - |
| Proxy passthrough | - | - |
| Admin API | - | - |
| Deployment | - | - |
| Legacy protocol virtualization | - | - |
| Collaboration sharing | - | - |
| Ci cd integration | - | - |
| Open source | - | - |
| Market segment | - | - |
| Pricing model | - | - |

*Source: Vioscale. Generated 2026-09-01T17:44:46.580Z. "-" = undocumented, not absent.*