Cyclr provides Swagger documentation for the API, the location depends on your instance.

Instance Docs
US api.cyclr.com/docs/index
US2 api.us2.cyclr.com/docs/index
UK api.cyclr.uk/docs/index
APAC api.apac.cyclr.com/docs/index
EU api.eu.cyclr.com/docs/index
Private https://{your-api-instance}/docs/index