Mock API platform

OpenAPI mock serverPoint it at a spec and every path answers.Hosted mock serverOne stable URL, close to the team calling it.Latency and errorsMake it slow, make it fail, see what breaks.API proxyProxy the real API, mock what is missing.

PR environmentsA mock server for every pull request.History and replayEvery request kept, any of them replayed.Fake JSON APIServe your own JSON files on a real URL.All featuresEverything the mock server does.

Resilient Backends

OverviewProvider APIs, rebuilt for testing.Payment backendsAuthorisations, refunds, 3DS and decline codes.Identity: KYC and KYBDocument checks, screening and applicant flows.Self-hostedThe same providers, inside your own network.

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Mockoon alternative: keep your mock API in sync with your OpenAPI spec Stoplight Prism alternative: an OpenAPI mock server with a URL WireMock alternative: mock an OpenAPI spec without writing stubs All articles

Mock API platform

Mock API plansFree to start, then monthly or yearly.Custom planSet your own limits and see the price.

Resilient Backends

Hosted backendsPriced per provider, on top of your plan.Self-hosted backendsPriced per provider. No plan needed.

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Articles on payments

One article tagged payments.

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1 article in English.

Mock the Stripe API in CIStripe's OpenAPI document is 6.1 MB and 419 paths. Here is how to trim it to the endpoints your tests call and mock Stripe in CI with a GitHub Action.stripecigithub-actionspaymentsSep 3, 2026·7 min read