---
search:
  tags:
    - Sessions
    - POST
seo:
  description: >-
    Canonical V0 token-refresh endpoint (Decision D1). Mints… Reference for the
    POST /v1/sessions/{session_id}/client-token endpoint in the AVTR Public API
    v1 API.
sidebar:
  badge: POST
  label: Mint a fresh short-lived client token (canonical V0)
title: Mint a fresh short-lived client token (canonical V0)
type: openapi-operation
---
Canonical V0 token-refresh endpoint (Decision D1). Mints a new short-lived (5-minute) HMAC-signed `client_token` for an existing session. Use this for reconnects, delayed connections, or browser sleep recovery.

Requires normal `/v1/` API-key authentication. The deployed Worker also exposes this operation at `/v1/sessions/{session_id}/ws-token`; that path is a bridge/internal alias only. New integrations MUST use `/client-token`.

<Operation source="reference" id="post-v1-sessions-session-id-client-token" />