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

# Health check (root)

> Returns service status and metadata for ALB and infrastructure health checks



## OpenAPI

````yaml /ste/api-reference/stl-api.yaml get /health
openapi: 3.1.0
info:
  title: Symmetry Tax Logic API
  description: >-
    NOTE: All `/v1/*` endpoints require a Bearer token.


    **To authenticate:** call `GET /authentication/login` on the Symmetry API
    with your API key in the `api-key` header, then use the returned
    `accessToken` as the Bearer token below.
  contact:
    name: Symmetry Software
    url: https://www.symmetry.com/
    email: support@symmetry.com
  license:
    name: Terms of Use
    url: https://www.symmetry.com/terms
  version: 2026.7.1
servers:
  - url: https://api.symmetry.com/stl
security:
  - BearerAuth: []
tags:
  - name: Symmetry Tax Logic
    description: >-
      Generate AI-powered tax calculation explanations using the Symmetry Tax
      Engine
  - name: Health
    description: Service health and readiness checks
paths:
  /health:
    get:
      tags:
        - Health
      summary: Health check (root)
      description: >-
        Returns service status and metadata for ALB and infrastructure health
        checks
      operationId: health_check_health_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                additionalProperties: true
                type: object
                title: Response Health Check Health Get
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: >-
        Obtain a token by calling GET /authentication/login with your Symmetry
        API key in the api-key header. Paste the accessToken value here.

````