Teams build better APIs, faster, with StopLight.

StopLight API Designer

API Designer

Swagger + RAML

No lock-in. Easy import & export to your favorite specs.


Works with teams of any size, and reduces development friction.

JSON Schema Editors

Future proof, standards based API descriptions.


Never lose work to editing conflicts again.

Prism API Proxy

Request + Response Transformation

Unlock APIs with transformations, written in familiar Javascript.

Request + Response Validation

Reduce errors, and improve inter-team communication.

HTTP Traffic Capture

Better debugging across your team with shared traffic logs.

Dynamic API Mocking

Get more done by decoupling your frontend and backend teams.

Join the Beta