> ## Documentation Index
> Fetch the complete documentation index at: https://www.posted.cc/llms.txt
> Use this file to discover all available pages before exploring further.

# Verify a recent session

> Reauthenticates the current session. A passkey-protected account receives a second-factor challenge before recent authentication is renewed.

A signed-in human session is required. API keys and MCP bearer credentials cannot replace that session.

Reauthenticates the current session. A passkey-protected account receives a second-factor challenge before recent authentication is renewed.

[Request conventions](/api-reference/overview) · [API keys](/api-keys) · [MCP connections](/mcp-connections)


## OpenAPI

````yaml api-reference/openapi.json POST /api/auth/reauth
openapi: 3.1.0
info:
  title: Posted HTTP API
  version: 0.2.0
  description: >-
    All registered application, account, OAuth, MCP transport and health
    endpoints. Publishing and draft request schemas come from the shared runtime
    validators. Replace the example server with your installation. Documentation
    uses simple request examples and does not execute live publishing requests.
servers:
  - url: https://posted-api.example.com
security: []
paths:
  /api/auth/reauth:
    post:
      tags:
        - Account and sessions
      summary: Verify a recent session
      description: >-
        Reauthenticates the current session. A passkey-protected account
        receives a second-factor challenge before recent authentication is
        renewed.


        A signed-in human session is required. API keys and MCP bearer
        credentials cannot replace that session.
      operationId: post_api_auth_reauth
      parameters:
        - name: Origin
          in: header
          required: true
          schema:
            type: string
            format: uri
          description: >-
            The exact configured Posted UI origin. Required for browser
            mutations carrying session cookies.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                password:
                  type: string
                  minLength: 1
                  maxLength: 1024
              required:
                - password
              additionalProperties: false
      responses:
        '200':
          description: >-
            Successful response. Examples are illustrative; field values vary by
            record.
          content:
            application/json:
              schema:
                type: object
                properties:
                  ok:
                    type: boolean
                additionalProperties: true
              example:
                ok: true
        default:
          description: >-
            Request failure. Inspect code, message and requestId; respect
            Retry-After on HTTP 429.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      security:
        - sessionCookie: []
components:
  schemas:
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - code
            - message
            - requestId
          properties:
            code:
              type: string
            message:
              type: string
            requestId:
              type: string
  securitySchemes:
    sessionCookie:
      type: apiKey
      in: cookie
      name: posted_session
      description: >-
        Signed-in human browser session; mutation requests also need the exact
        UI Origin

````

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