**Base API URL**: https://api.configcat.com If you prefer the swagger documentation, you can find it here: [Swagger UI](https://api.configcat.com/swagger). The purpose of this API is to access the ConfigCat platform programmatically. You can **Create**, **Read**, **Update** and **Delete** any entities like **Feature Flags, Configs, Environments** or **Products** within ConfigCat. The API is based on HTTP REST, uses resource-oriented URLs, status codes and supports JSON and JSON+HAL format. Do not use this API for accessing and evaluating feature flag values. Use the [SDKs instead](https://configcat.com/docs/sdk-reference/overview). # OpenAPI Specification The complete specification is publicly available here: [swagger.json](v1/swagger.json). You can use it to generate client libraries in various languages with [OpenAPI Generator](https://github.com/OpenAPITools/openapi-generator) or [Swa
Last checked Sep 4, 2026 · uptime 24h 100% / 7d 100% / 30d 100%
Excellent production-readiness signals.