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Microcks vs Prism: catalog facts
Microcks	Prism
Free Free and open source.	Free Free and open source.
Self-hosted	Command line
Mocks REST, gRPC, GraphQL and event-driven APIs Tests implementations against API contracts	Mock server generated directly from an OpenAPI file Validation proxy catches contract drift
Needs a server or cluster to run More setup than a desktop API client	Depends on a complete, accurate specification Command-line only
Self-hosted	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.