If you prefer to directly download the Credentially OpenAPI specification file in JSON format (for example to import it into Postman or other development tool you can do so via direct link:
https://app.credentially.io/gateway/api-docs
https://app.credentially.io/webhook-gateway/api-docs
There is an autogenerated swagger website but we recommend using this portal as it has better navigation and friendlier descriptions
https://app.credentially.io/gateway/swagger-ui.html
https://app.credentially.io/webhook-gateway/swagger-ui.html