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

# Identity User Session


## API Docs

- Session setup [Create an auth session](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-create-auth-session.md)
- Session setup [Create an invitation session](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-create-invitation.md)
- Session setup [Get session settings](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/get-identity-user-session-get-user-session-settings.md)
- Session setup [Get session theme settings](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/get-identity-user-session-get-session-theme-settings.md)
- Login [Login within session](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-login.md)
- Registration [Register — verify phone (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-register-step-verify-phone.md)
- Registration [Register — verify email (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-register-step-verify-email.md)
- Registration [Register — create user (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-register-step-create.md)
- Registration [Check contract eligibility (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/get-identity-user-session-check-eligibility.md)
- Registration [Check email or phone existence (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-check-existence-of-email-or-phone.md)
- Contract signing [Check pending signatures (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/get-identity-user-session-has-more-to-sign.md)
- Contract signing [List contract types (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/get-identity-user-session-get-all-request-types.md)
- Contract signing [Create business request (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-create-type-id.md)
- Contract signing [Customer sign — validate OTP (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-customer-sign-step-validate-otp.md)
- Contract signing [Customer sign — validate payment (session)](https://docs.vlenseg.com/api-reference/vlens-api/identity-user-session/post-identity-user-session-customer-sign-step-validate-payment.md)

## OpenAPI Specification

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