> For the complete documentation index, see [llms.txt](https://finext.gitbook.io/one-kyc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://finext.gitbook.io/one-kyc/api/api-reference.md).

# API reference (Swagger / OpenAPI)

The Tenant API specification is available in OpenAPI 3.0 format and contains the complete description of every endpoint, request, and response schema. The single specification covers both **KYC** endpoints (sessions, applicants, verification links, etc.) and **KYB** endpoints (`/v1/kyb/businesses`, `/v1/kyb/businesses/{id}`, etc.).

* **OpenAPI 3.0 JSON:** [/tenant/docs/openapi3.json](https://github.com/ONE-KYC/backend/tree/main/tenant/docs/openapi3.json)
* **Interactive documentation (Swagger UI):** [/tenant/docs/](https://github.com/ONE-KYC/backend/tree/main/tenant/docs/README.md)

The topical sections of this documentation (Applicants, Verification links, Webhooks, etc.) embed the request and response blocks from the same specification. The complete endpoint list is below: