> ## 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. # Intraday Index: Index Reference > A private API reference scoped to the indices this key may access. The Intraday Index is available to authorized clients. Your API token must have the required permissions added — contact [david@compute-index.com](mailto:david@compute-index.com) to request access. ## Example Fetch a self-contained reference scoped to your token: ```bash theme={null} curl -H "Authorization: Bearer $TOKEN" \ "https://data-api.compute-index.com/v1/custom-index/reference" ``` ## OpenAPI ````yaml pricing/openapi.json GET /v1/custom-index/reference 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/custom-index/reference: get: tags: - Custom Index summary: Get Custom Index Reference description: A private API reference scoped to the indices this key may access. operationId: get_custom_index_reference_v1_custom_index_reference_get responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/CustomIndexReference' example: endpoints: GET /v1/custom-index/as-of: >- Value as of a UTC time (capped at now). Params: as_of, index_id. GET /v1/custom-index/available: >- List the indices your key can access + their interval ranges. GET /v1/custom-index/current: 'Latest realized value. Params: index_id.' GET /v1/custom-index/history: >- Time series. Params: index_id, start, end, resolution, limit, offset. fields: blended_value: Raw (unsmoothed) blended index ($/GPU/hr). index_units: usd_per_gpu_per_hr. index_value: >- EWMA-smoothed blended index ($/GPU/hr) — the headline (half-life ~1.94d). p5 / p95: Blended envelope band (unsmoothed). timestamp: Interval start, UTC ISO-8601 (30-min grid). indices: - contract_type: combined description: >- NVIDIA H100 · US · neocloud · combined (on-demand+reserved) — intraday blended index first_timestamp: '2024-04-01T00:00:00+00:00' gpu_family: hopper gpu_model: h100 index_id: h100-us index_name: h100 index_units: usd_per_gpu_per_hr last_timestamp: '2026-07-16T07:00:00+00:00' region_group: US total_intervals: 40143 vendor_category: neocloud notes: - All timestamps are UTC. - >- Only realized intervals are returned (interval_start <= now); future buffer is never exposed. - >- history is paginated: use total_count / has_more / next_offset to page through. - >- Unsupported filter values or an index_id you are not authorized for return an error. '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: CustomIndexReference: properties: indices: items: $ref: '#/components/schemas/AvailableCustomIndex' type: array title: Indices description: Indices this key is authorized for endpoints: additionalProperties: true type: object title: Endpoints description: Endpoint usage summary fields: additionalProperties: true type: object title: Fields description: Field descriptions for each data point notes: items: type: string type: array title: Notes description: Methodology / behavior notes type: object required: - indices - endpoints - fields - notes title: CustomIndexReference description: >- Private, per-caller API reference for the custom-index section. Returned by the auth-gated /v1/custom-index/reference endpoint; lists only the indices the caller's key is authorized for (the public /docs hides this section). AvailableCustomIndex: properties: index_id: type: string title: Index Id description: Index identifier (e.g., h100-us) description: type: string title: Description description: Human-readable index description index_name: type: string title: Index Name description: Index name (e.g., h100) gpu_family: type: string title: Gpu Family description: GPU family (hopper) gpu_model: type: string title: Gpu Model description: GPU group (h100) region_group: type: string title: Region Group description: Region group contract_type: type: string title: Contract Type description: Contract type vendor_category: type: string title: Vendor Category description: Vendor category index_units: type: string title: Index Units description: Units of the index value default: usd_per_gpu_per_hr first_timestamp: type: string title: First Timestamp description: Earliest available interval, UTC ISO-8601 last_timestamp: type: string title: Last Timestamp description: Latest realized interval (<= now), UTC ISO-8601 total_intervals: type: integer title: Total Intervals description: Number of 30-min intervals with a blended value (<= now) type: object required: - index_id - description - index_name - gpu_family - gpu_model - region_group - contract_type - vendor_category - first_timestamp - last_timestamp - total_intervals title: AvailableCustomIndex description: Available custom index series metadata securitySchemes: HTTPBearer: type: http scheme: bearer ````