# json-server vs Microcks

**Leader by vioscaleAI score:** json-server

| Attribute | json-server | Microcks |
|---|---|---|
| **vioscaleAI score** | 62.5 (64% (medium)) | 50.2 (78% (high)) |
| activity.commits_last_30d | - | 32 |
| adoption.dependent_repos | 85,674 | 8 |
| adoption.github_stars | 75,731 | 2,044 |
| content.faq | `[{"answer":"An open-source tool that generates a full-featured REST API server from a JSON or JSON5 file, enabling rapid prototyping and testing without backend development. It is indexed under API Mocking.","source":"https://github.com/pricing","question":"What is json-server?","confidence":0.6},{"answer":"json-server is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://github.com/pricing","question":"Is json-server free to use?","confidence":0.6},{"answer":"json-server supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://github.com/pricing","question":"What platforms does json-server support?","confidence":0.6},{"answer":"Yes. json-server can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://github.com/pricing","question":"Can json-server be self-hosted?","confidence":0.6},{"answer":"Yes. json-server is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/typicode/json-server","question":"Is json-server open source?","confidence":0.95}]` | `[{"answer":"An open source platform that creates mock APIs and performs contract testing across multiple API specification formats including OpenAPI, AsyncAPI, gRPC, GraphQL, and SOAP to accelerate API development and validation. It is indexed under API Mocking.","source":"https://microcks.io","question":"What is Microcks?","confidence":0.6},{"answer":"Microcks is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://microcks.io","question":"Is Microcks free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Microcks. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://microcks.io","question":"What platforms does Microcks support?","confidence":0.6},{"answer":"Yes. Microcks can be deployed cloud / SaaS and on-premise, so it does not have to run on the vendor's infrastructure.","source":"https://microcks.io","question":"Can Microcks be self-hosted?","confidence":0.6},{"answer":"We have confirmed 10 integrations for Microcks, including Postman, OpenAI, Keycloak, Backstage, Docker Desktop, OpenAPI, AsyncAPI and gRPC, plus 2 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://microcks.io","question":"What does Microcks integrate with?","confidence":0.6},{"answer":"Yes. Microcks is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/microcks/microcks","question":"Is Microcks open source?","confidence":0.95}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"on_prem":true}` |
| description.long | An open-source tool that generates a full-featured REST API server from a JSON or JSON5 file, enabling rapid prototyping and testing without backend development. | An open source platform that creates mock APIs and performs contract testing across multiple API specification formats including OpenAPI, AsyncAPI, gRPC, GraphQL, and SOAP to accelerate API development and validation. |
| features.capabilities | `{"deployment":"cli_binary","open_source":true,"mocking_mode":"static","pricing_model":"open_source","market_segment":"dev-tool"}` | `{"deployment":"docker","open_source":true,"mocking_mode":"dynamic_templating","pricing_model":"open_source","market_segment":"dev-tool","openapi_import":true,"ci_cd_integration":true}` |
| integrations.count | - | 10 |
| integrations.list | - | `[{"name":"Postman"},{"name":"OpenAI"},{"name":"Keycloak"},{"name":"Backstage"},{"name":"Docker Desktop"},{"name":"OpenAPI"},{"name":"AsyncAPI"},{"name":"gRPC"},{"name":"GraphQL"},{"name":"SOAP"}]` |
| language.primary | JavaScript | Java |
| license.spdx | MIT | Apache-2.0 |
| platform.support | `{"cli":true,"web":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","summary":"Free, open-source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-17T21:30:41.016Z"}` | `{"type":"open_source","sourceUrl":"https://microcks.io","retrievedAt":"2026-09-02T11:26:33.107Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 6 | 43 |
| release.history | `[{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.15","date":"2026-03-23T19:40:05Z","type":"stable","version":"v1.0.0-beta.15"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.14","date":"2026-03-20T15:15:06Z","type":"stable","version":"v1.0.0-beta.14"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.13","date":"2026-03-13T00:36:40Z","type":"stable","version":"v1.0.0-beta.13"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.12","date":"2026-02-28T00:44:28Z","type":"stable","version":"v1.0.0-beta.12"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.10","date":"2026-02-26T22:49:44Z","type":"stable","version":"v1.0.0-beta.10"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.9","date":"2026-02-19T23:37:59Z","type":"stable","version":"v1.0.0-beta.9"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.8","date":"2026-02-19T23:08:52Z","type":"stable","version":"v1.0.0-beta.8"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.7","date":"2026-02-19T22:46:20Z","type":"stable","version":"v1.0.0-beta.7"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.6","date":"2026-02-14T22:48:17Z","type":"stable","version":"v1.0.0-beta.6"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.5","date":"2026-01-22T09:26:14Z","type":"stable","version":"v1.0.0-beta.5"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.4","date":"2026-01-21T22:57:31Z","type":"stable","version":"v1.0.0-beta.4"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.3","date":"2024-09-24T13:21:29Z","type":"stable","version":"v1.0.0-beta.3"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.2","date":"2024-08-19T13:12:26Z","type":"stable","version":"v1.0.0-beta.2"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.1","date":"2024-06-04T10:10:16Z","type":"stable","version":"v1.0.0-beta.1"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-beta.0","date":"2024-05-13T13:29:13Z","type":"stable","version":"v1.0.0-beta.0"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-alpha.23","date":"2024-01-26T17:34:24Z","type":"stable","version":"v1.0.0-alpha.23"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-alpha.22","date":"2024-01-22T15:08:04Z","type":"stable","version":"v1.0.0-alpha.22"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-alpha.21","date":"2024-01-13T22:50:00Z","type":"stable","version":"v1.0.0-alpha.21"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-alpha.20","date":"2024-01-13T01:43:42Z","type":"stable","version":"v1.0.0-alpha.20"},{"url":"https://github.com/typicode/json-server/releases/tag/v1.0.0-alpha.19","date":"2024-01-12T00:10:55Z","type":"stable","version":"v1.0.0-alpha.19"}]` | `[{"url":"https://github.com/microcks/microcks/releases/tag/1.15.0","date":"2026-08-05T07:48:13Z","type":"stable","version":"1.15.0"},{"url":"https://github.com/microcks/microcks/releases/tag/1.15.0-rc1","date":"2026-06-22T11:45:41Z","type":"stable","version":"1.15.0-rc1"},{"url":"https://github.com/microcks/microcks/releases/tag/1.14.0","date":"2026-04-29T08:15:31Z","type":"stable","version":"1.14.0"},{"url":"https://github.com/microcks/microcks/releases/tag/1.14.0-rc2","date":"2026-03-31T13:09:39Z","type":"stable","version":"1.14.0-rc2"},{"url":"https://github.com/microcks/microcks/releases/tag/1.14.0-rc1","date":"2026-03-27T14:21:30Z","type":"stable","version":"1.14.0-rc1"},{"url":"https://github.com/microcks/microcks/releases/tag/1.13.2","date":"2026-01-06T16:45:49Z","type":"stable","version":"1.13.2"},{"url":"https://github.com/microcks/microcks/releases/tag/1.13.1","date":"2025-12-08T15:51:55Z","type":"stable","version":"1.13.1"},{"url":"https://github.com/microcks/microcks/releases/tag/1.13.0","date":"2025-10-25T15:08:00Z","type":"stable","version":"1.13.0"},{"url":"https://github.com/microcks/microcks/releases/tag/1.12.1","date":"2025-07-21T12:44:11Z","type":"stable","version":"1.12.1"},{"url":"https://github.com/microcks/microcks/releases/tag/1.12.0","date":"2025-05-28T09:49:29Z","type":"stable","version":"1.12.0"},{"url":"https://github.com/microcks/microcks/releases/tag/1.11.2","date":"2025-03-25T15:24:45Z","type":"stable","version":"1.11.2"},{"url":"https://github.com/microcks/microcks/releases/tag/1.11.1","date":"2025-03-06T13:48:14Z","type":"stable","version":"1.11.1"},{"url":"https://github.com/microcks/microcks/releases/tag/1.11.0-fix-3","date":"2025-02-10T13:41:50Z","type":"stable","version":"1.11.0-fix-3"},{"url":"https://github.com/microcks/microcks/releases/tag/1.11.0-fix-2","date":"2025-02-10T09:50:00Z","type":"stable","version":"1.11.0-fix-2"},{"url":"https://github.com/microcks/microcks/releases/tag/1.11.0-fix-1","date":"2025-01-20T09:32:55Z","type":"stable","version":"1.11.0-fix-1"},{"url":"https://github.com/microcks/microcks/releases/tag/1.11.0","date":"2025-01-15T13:11:20Z","type":"stable","version":"1.11.0"},{"url":"https://github.com/microcks/microcks/releases/tag/1.10.1-fix-1","date":"2024-10-10T06:52:45Z","type":"stable","version":"1.10.1-fix-1"},{"url":"https://github.com/microcks/microcks/releases/tag/1.10.1","date":"2024-09-30T14:41:48Z","type":"stable","version":"1.10.1"},{"url":"https://github.com/microcks/microcks/releases/tag/1.10.0","date":"2024-08-02T09:34:39Z","type":"stable","version":"1.10.0"},{"url":"https://github.com/microcks/microcks/releases/tag/1.9.1-fix-1","date":"2024-06-13T15:10:09Z","type":"stable","version":"1.9.1-fix-1"}]` |
| security.scorecard | 3.6 | 7.5 |
| security.trust_center | https://github.com/security | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=json-server&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=io.github.microcks%3Amicrocks-model&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (API Mocking)

| Capability | json-server | Microcks |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Mocking mode | Static | Dynamic templating |
| Stateful scenarios | - | - |
| Fault chaos injection | - | - |
| Openapi import | - | ✓ |
| Proxy passthrough | - | - |
| Admin API | - | - |
| Deployment | CLI binary | Docker |
| Legacy protocol virtualization | - | - |
| Collaboration sharing | - | - |
| Ci cd integration | - | ✓ |
| Open source | ✓ | ✓ |
| Market segment | Dev tool | Dev tool |
| Pricing model | Open source | Open source |

*Source: vioscaleAI. Generated 2026-10-16T20:12:34.962Z. "-" = undocumented, not absent.*