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

# Informational Index: Available Indices

> Returns available index names with their date ranges

## Example

List which indices have data and their coverage windows:

```bash theme={null}
curl -H "Authorization: Bearer $TOKEN" \
  "https://data-api.compute-index.com/v1/info-index/available"
```


## OpenAPI

````yaml pricing/openapi.json GET /v1/info-index/available
openapi: 3.1.0
info:
  title: GPU Pricing API
  description: |2-

        **GPU Pricing API** provides real-time and historical pricing data
        for GPU compute across 50+ cloud providers and GPU marketplaces.

        ## Features
        - Search current prices across vendors
        - Historical price trends
        - GPU transaction data
        - **Informational Price Index** — EWMA-smoothed composite indices by GPU family, region, and contract type
        - **Transaction Price Index** — smoothed indices derived from verified GPU transactions
        - **Custom Index** — EWMA-smoothed H100 sub-model indices by region, contract type, and vendor category
        - Global region coverage (US, EU, APAC)
        - GPU availability tracking
        - Scope-based API key access control

        ## Authentication
        Send your token as a Bearer token in the `Authorization` header on every request:
        ```
        Authorization: Bearer YOUR_TOKEN
        ```
        Example:
        ```bash
        curl -H "Authorization: Bearer $TOKEN" "https://data-api.compute-index.com/v1/vendors"
        ```
        Tokens are issued by Compute Index (david@compute-index.com); long-lived, treat as secrets.

        > The legacy `X-API-Key` header is deprecated — use the `Authorization: Bearer` header above.

        ## Rate Limits
        - **Free tier**: 100 requests/minute, 10,000/day
        - **Pro tier**: 1,000 requests/minute, 100,000/day
        - **Enterprise**: Custom limits

        ## Data Coverage
        - 50+ vendors (AWS, Azure, GCP, Oracle, CoreWeave, Lambda, RunPod, Vast.AI, FluidStack, Vultr, etc.)
        - 30M+ historical pricing records
        - Updated multiple times daily

        ## Support
        - Support: david@compute-index.com
        
  contact:
    name: API Support
    email: david@compute-index.com
  license:
    name: Commercial License
    url: https://compute-desk.com/license
  version: 1.0.0
servers:
  - url: https://data-api.compute-index.com
security: []
paths:
  /v1/info-index/available:
    get:
      tags:
        - Informational Index
      summary: List available informational indices
      description: Returns available index names with their date ranges
      operationId: get_available_indices_v1_info_index_available_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AvailableIndicesResponse'
              example:
                data:
                  - first_date: '2025-04-02'
                    gpu_family: blackwell
                    gpu_model: null
                    index_name: blackwell
                    index_units: usd_per_gpu_per_hr
                    last_date: '2026-07-16'
                    total_days: 471
                  - first_date: '2024-02-02'
                    gpu_family: hopper
                    gpu_model: null
                    index_name: hopper
                    index_units: usd_per_gpu_per_hr
                    last_date: '2026-07-16'
                    total_days: 896
                total: 2
        '401':
          description: Unauthorized — missing or invalid credentials
          content:
            application/json:
              schema:
                title: ErrorResponse
                type: object
                properties:
                  detail:
                    type: string
                required:
                  - detail
              examples:
                missing_credentials:
                  summary: No credentials supplied
                  value:
                    detail: >-
                      Authentication required. Provide an X-API-Key header or an
                      Authorization: Bearer token.
                invalid_token:
                  summary: Invalid or expired token
                  value:
                    detail: Invalid or expired token
        '403':
          description: Forbidden — key lacks the required scope
          content:
            application/json:
              schema:
                title: ErrorResponse
                type: object
                properties:
                  detail:
                    type: string
                required:
                  - detail
              examples:
                missing_scope:
                  summary: Key lacks the required scope
                  value:
                    detail: >-
                      Access denied. Your API key does not have permission to
                      access this resource.
        '429':
          description: >-
            Too Many Requests — limit and reset are returned in X-RateLimit-*
            headers; the limit reflects your key's tier
          content:
            application/json:
              schema:
                title: ErrorResponse
                type: object
                properties:
                  detail:
                    type: string
                required:
                  - detail
              examples:
                minute_limit:
                  summary: Per-minute limit exceeded (figure reflects your key's tier)
                  value:
                    detail: 'Rate limit exceeded: 100 requests per minute'
      security:
        - HTTPBearer: []
components:
  schemas:
    AvailableIndicesResponse:
      properties:
        data:
          items:
            $ref: '#/components/schemas/AvailableIndex'
          type: array
          title: Data
        total:
          type: integer
          title: Total
      type: object
      required:
        - data
        - total
      title: AvailableIndicesResponse
      description: Response listing all available informational indices
    AvailableIndex:
      properties:
        index_name:
          type: string
          title: Index Name
          description: Index identifier (e.g., hopper, h100, b200)
        gpu_family:
          anyOf:
            - type: string
            - type: 'null'
          title: Gpu Family
          description: GPU family
        gpu_model:
          anyOf:
            - type: string
            - type: 'null'
          title: Gpu Model
          description: GPU model (if model-level index)
        index_units:
          type: string
          title: Index Units
          description: Units of the index value
          default: usd_per_gpu_per_hr
        first_date:
          type: string
          title: First Date
          description: Earliest available date (YYYY-MM-DD)
        last_date:
          type: string
          title: Last Date
          description: Latest available date (YYYY-MM-DD)
        total_days:
          type: integer
          title: Total Days
          description: Number of days with index data
      type: object
      required:
        - index_name
        - first_date
        - last_date
        - total_days
      title: AvailableIndex
      description: Available index metadata
  securitySchemes:
    HTTPBearer:
      type: http
      scheme: bearer

````