> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://fyno.io/docs/api-reference/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://fyno.io/docs/_mcp/server.

# API Reference


## API Docs

- API Reference > Notification Event [Notify a single user](https://fyno.io/docs/api-reference/notify-a-single-user.md)
- API Reference > Notification Event [Notify multiple users](https://fyno.io/docs/api-reference/notify-multiple-users.md)
- API Reference > Fyno Verify [Verify OTP](https://fyno.io/docs/api-reference/verify-otp.md)
- API Reference > User Profiles [Get user profile](https://fyno.io/docs/api-reference/get-user-profile.md)
- API Reference > User Profiles [Create user profile](https://fyno.io/docs/api-reference/create-user-profile.md)
- API Reference > User Profiles [Update user profile](https://fyno.io/docs/api-reference/update-user-profile.md)
- API Reference > User Profiles [Merge user profiles](https://fyno.io/docs/api-reference/merge-user-profiles.md)
- API Reference > User Profiles [Add/Update channel data](https://fyno.io/docs/api-reference/add-update-channel-data.md)
- API Reference > User Profiles [Delete channel data](https://fyno.io/docs/api-reference/delete-channel-data.md)
- API Reference > User Profiles [Delete user profile](https://fyno.io/docs/api-reference/delete-user-profile.md)
- API Reference > User Subscriptions [Get user preference](https://fyno.io/docs/api-reference/get-user-preference.md)
- API Reference > User Subscriptions [Update user preference](https://fyno.io/docs/api-reference/update-user-preference.md)
- API Reference > User Subscriptions [Update user preference (single)](https://fyno.io/docs/api-reference/update-user-preference-single.md)
- API Reference > User Properties [Update User Property](https://fyno.io/docs/api-reference/update-user-property.md)
- API Reference > User Properties [Set an Unset Property](https://fyno.io/docs/api-reference/set-an-unset-property.md)
- API Reference > User Properties [Increment/Decrement Numeric Property](https://fyno.io/docs/api-reference/increment-decrement-numeric-property.md)
- API Reference > User Properties [Append Values to List](https://fyno.io/docs/api-reference/append-values-to-list.md)
- API Reference > User Properties [Remove Value From List](https://fyno.io/docs/api-reference/remove-value-from-list.md)
- API Reference > User Properties [Unset User Property](https://fyno.io/docs/api-reference/unset-user-property.md)
- API Reference > User Properties [Batch Update User Properties](https://fyno.io/docs/api-reference/batch-update-user-properties.md)
- API Reference > Suppression List [Get Users](https://fyno.io/docs/api-reference/suppression-list/get-users.md)
- API Reference > Suppression List [Add User to Suppression List](https://fyno.io/docs/api-reference/suppression-list/add-user-to-suppression-list.md)
- API Reference > Suppression List [Delete User from Suppression List](https://fyno.io/docs/api-reference/suppression-list/delete-user-from-suppression-list.md)
- API Reference > Suppression List [Ingest New](https://fyno.io/docs/api-reference/suppression-list/ingest-new.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://fyno.io/docs/api-reference/openapi.json)
- [OpenAPI YAML](https://fyno.io/docs/api-reference/openapi.yaml)