MirageAPI vs WireMock
WireMock is a mature open-source (Apache 2.0) HTTP stubbing tool that runs as a standalone server, in Docker, or embedded in JVM tests. It is extremely flexible, and that flexibility means you describe each stub yourself. MirageAPI instead reads your OpenAPI spec and mocks every endpoint automatically.
Feature comparison
| Feature | MirageAPI | WireMock |
|---|---|---|
| How you run it | In the browser, or a Node.js CLI | Standalone JAR, Docker, or embedded in JVM tests |
| Install required | No (web app) | Yes (Java or Docker) |
| Setup from an OpenAPI spec | Automatic — every path is mocked | Write stub mappings; OpenAPI import in WireMock Cloud |
| Response data | Generated from schema constraints | Defined per stub, with response templating |
| Advanced request matching | Path and method | Headers, body, query, JSON path and more |
| Record and playback | No | Yes |
| Fault and delay simulation | Status codes and delays (no connection faults) | Yes |
| Validates requests against an OpenAPI spec | Yes | Via WireMock Cloud |
| Stateful scenarios | Not yet | Yes |
| Browser UI and shareable URL | Yes, free | WireMock Cloud (commercial) |
| Price | Free, MIT-licensed | Free, Apache 2.0; commercial WireMock Cloud |
Last reviewed September 2026. Both tools evolve quickly — check the WireMock documentation for its latest features.
Choose WireMock if…
- You are writing JVM integration tests and want stubs in code.
- You need precise request matching, record/playback or fault injection.
- You mock APIs that have no OpenAPI spec.
Choose MirageAPI if…
- You have an OpenAPI spec and want every endpoint mocked with no stub writing.
- You want realistic, schema-valid data without authoring responses.
- You want a zero-install, browser-based mock for demos and frontend work.
You can try MirageAPI with your own spec right now — no signup. Launch the app →
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