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

# Health check

> Liveness probe for the Atlas process. Returns plain-text `200` when the process is up — not a dependency check, and not a trading-engine readiness signal.



## OpenAPI

````yaml /api-reference/openapi/calibri.yaml get /api/v2/atlas/public/health/alive
openapi: 3.1.0
info:
  title: Calibri API
  version: 1.0.0
  description: >-
    The Calibri API. Discover markets, read live books, place signed orders, and
    manage positions and account data.

    Routed by path prefix to the service that answers it — which is an
    implementation detail, not something a caller has to reason about.
servers:
  - description: Production
    url: https://calibri.io
security: []
tags:
  - name: Health
    description: Service liveness.
    x-displayName: Health
  - name: Events
    description: Discover events and their metadata.
    x-displayName: Events
  - name: Markets
    description: List markets and load market detail for trading.
    x-displayName: Markets
  - name: Series
    description: Recurring event series.
    x-displayName: Series
  - name: Tags
    description: Editorial shelves used to browse the catalogue.
    x-displayName: Tags
  - name: Market Data
    description: Order book, depth, trade tape, tickers, and candles.
    x-displayName: Market Data
  - name: Assets
    description: Underlying asset price history for price-feed markets.
    x-displayName: Assets
  - name: Community
    description: Leaderboard and platform activity.
    x-displayName: Community
  - name: Currencies
    description: Currency registry.
    x-displayName: Currencies
  - name: Trade
    description: Place, list, and cancel orders.
    x-displayName: Trade
  - name: Positions
    description: Your matched contracts.
    x-displayName: Positions
  - name: Wallet
    description: Self-custody Safe, passkey, session keys, and relay.
    x-displayName: Wallet
  - name: Rewards
    description: Maker rebates and referral earnings.
    x-displayName: Rewards
  - name: Account
    description: Balances, ledger, PnL, limits, preferences, and profile.
    x-displayName: Account
  - name: Categories
    description: Categories
    x-displayName: Categories
  - name: Other
    description: Other
    x-displayName: Other
externalDocs:
  description: ''
  url: ''
paths:
  /api/v2/atlas/public/health/alive:
    get:
      tags:
        - Health
      summary: Health check
      description: >-
        Liveness probe for the Atlas process. Returns plain-text `200` when the
        process is up — not a dependency check, and not a trading-engine
        readiness signal.
      parameters: []
      responses:
        '200':
          content:
            text/plain:
              schema:
                type: string
          description: Alive. The body is the literal string `200`, as `text/plain`.
      security: []

````

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