Mockbin

Mock an API endpoint in seconds

Mockbin is an open-source, fully-free tool that lets you spin up a fixed-response API endpoint and inspect requests sent to it. Upload an OpenAPI document and we'll generate a mock from your schemas and examples.

Create an OpenAPI bin

Upload an OpenAPI v3.1 document and we'll use its schemas and examples to mock it.

Drop your OpenAPI 3.x file here, or click below to browseJSON · YAML

Create a new bin

Specify the response below and we'll create an endpoint in a jiffy.

Mockbin is free of sign-ups. Bin IDs are only stored in your browser storage.