> ## Documentation Index > Fetch the complete documentation index at: https://data.ornn.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Get the Token Volume Index by day > The Token Volume Index: settled daily token volume for the closed frontier labs (`anthropic`, `openai`, `google`), with each lab indexed to 100 at its first settled day (`growthIndex`), its share of the closed-lab daily total (`share`), and the combined total indexed to 100 (`totalGrowthIndex`). The index is fixed-base: baselines anchor to each lab's first settled day ever, not to the first day of the requested window, so overlapping windows return identical values for the same date. A lab absent for a day is left out of that day's `labs` array rather than carried as a zero. Daily grain only. Requires an API key - like the Workload Cost Index there is no free tier. ## Overview The Token Volume Index: settled daily token volume for the closed frontier labs (`anthropic`, `openai`, `google`). Each lab carries its volume indexed to 100 at its first settled day (`growthIndex`) and its share of the closed-lab daily total (`share`); the combined total rides alongside as `totalGrowthIndex`. Both `startDate` and `endDate` are required - the series is read over an explicit window. The window selects which days come back; baselines stay anchored to each lab's first settled day in the full history, so overlapping windows return identical values for the same date. A lab that settled no volume on a day is left out of that day's `labs` array rather than reported as zero. Daily grain only. Requires an API key - like the Workload Cost Index, no part of this dataset has a free tier. ## OpenAPI ````yaml openapi.yaml GET /api/token-volume openapi: 3.1.0 info: title: Ornn Data API version: 1.0.0 description: > Read-only REST API for GPU and memory market data. The price index is the going rate of compute in USD per GPU-hour, a weighted average of all verified compute transactions across the market. servers: - url: https://api.ornnai.com security: - bearerAuth: [] tags: - name: Current Prices - name: Historical Prices - name: Analytics - name: Memory - name: Token Prices - name: Workload Cost - name: LLM Coding - name: Token Volume - name: Model Frontier - name: Compute Buyers - name: Neo-Cloud Sites - name: Reference paths: /api/token-volume: get: tags: - Token Volume summary: Get the Token Volume Index by day description: > The Token Volume Index: settled daily token volume for the closed frontier labs (`anthropic`, `openai`, `google`), with each lab indexed to 100 at its first settled day (`growthIndex`), its share of the closed-lab daily total (`share`), and the combined total indexed to 100 (`totalGrowthIndex`). The index is fixed-base: baselines anchor to each lab's first settled day ever, not to the first day of the requested window, so overlapping windows return identical values for the same date. A lab absent for a day is left out of that day's `labs` array rather than carried as a zero. Daily grain only. Requires an API key - like the Workload Cost Index there is no free tier. parameters: - name: startDate in: query required: true description: Inclusive start of the settlement-date window in YYYY-MM-DD. schema: type: string example: '2026-07-01' - name: endDate in: query required: true description: Inclusive end of the settlement-date window in YYYY-MM-DD. schema: type: string example: '2026-07-31' responses: '200': description: >- One row per settlement day, each carrying the labs that settled volume that day. content: application/json: example: success: true startDate: '2026-07-01' endDate: '2026-07-31' granularity: daily access: premium labs: - anthropic - openai - google baselines: - lab: anthropic date: '2026-06-04' totalTokens: 181000000 - lab: openai date: '2026-06-04' totalTokens: 262000000 - lab: google date: '2026-06-04' totalTokens: 199000000 totalBaseline: date: '2026-06-04' totalTokens: 642000000 count: 31 data: - date: '2026-07-01' totalTokens: 703000000 totalGrowthIndex: 109.5 labs: - lab: anthropic totalTokens: 201000000 growthIndex: 111 share: 0.286 - lab: openai totalTokens: 287000000 growthIndex: 109.5 share: 0.408 - lab: google totalTokens: 215000000 growthIndex: 108 share: 0.306 '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' x-codeSamples: - lang: bash label: cURL source: > curl "https://api.ornnai.com/api/token-volume?startDate=2026-07-01&endDate=2026-07-31" \ -H "Authorization: Bearer YOUR_API_KEY" - lang: python label: Python source: | import requests days = requests.get( "https://api.ornnai.com/api/token-volume", params={"startDate": "2026-07-01", "endDate": "2026-07-31"}, headers={"Authorization": "Bearer YOUR_API_KEY"}, ).json()["data"] for day in days: for lab in day["labs"]: print(day["date"], lab["lab"], lab["growthIndex"], lab["share"]) - lang: javascript label: JavaScript source: | const res = await fetch( "https://api.ornnai.com/api/token-volume?startDate=2026-07-01&endDate=2026-07-31", { headers: { Authorization: "Bearer YOUR_API_KEY" } }, ); const { data } = await res.json(); - lang: php label: PHP source: > true, CURLOPT_HTTPHEADER => ["Authorization: Bearer YOUR_API_KEY"], ]); $data = json_decode(curl_exec($ch), true); - lang: go label: Go source: "package main\n\nimport (\n\t\"io\"\n\t\"net/http\"\n)\n\nfunc main() {\n\tendpoint := \"https://api.ornnai.com/api/token-volume?startDate=2026-07-01&endDate=2026-07-31\"\n\treq, _ := http.NewRequest(\"GET\", endpoint, nil)\n\treq.Header.Set(\"Authorization\", \"Bearer YOUR_API_KEY\")\n\tresp, _ := http.DefaultClient.Do(req)\n\tdefer resp.Body.Close()\n\tbody, _ := io.ReadAll(resp.Body)\n\t_ = body\n}\n" - lang: java label: Java source: > import java.net.URI; import java.net.http.HttpClient; import java.net.http.HttpRequest; import java.net.http.HttpResponse; HttpClient client = HttpClient.newHttpClient(); HttpRequest request = HttpRequest.newBuilder( URI.create("https://api.ornnai.com/api/token-volume?startDate=2026-07-01&endDate=2026-07-31")) .header("Authorization", "Bearer YOUR_API_KEY") .build(); HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString()); - lang: ruby label: Ruby source: > require "net/http" require "json" uri = URI("https://api.ornnai.com/api/token-volume?startDate=2026-07-01&endDate=2026-07-31") req = Net::HTTP::Get.new(uri) req["Authorization"] = "Bearer YOUR_API_KEY" res = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(req) } data = JSON.parse(res.body) components: responses: BadRequest: description: A required parameter is missing or invalid. content: application/json: schema: $ref: '#/components/schemas/Error' Unauthorized: description: Missing, invalid, or revoked API key. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: Unauthorized message: 'API key required. Use Authorization: Bearer YOUR_API_KEY' schemas: Error: type: object properties: error: type: string example: Bad request message: type: string example: >- Invalid GPU type. Allowed: H100 SXM, H200, A100 SXM4, RTX 5090, B200, RTX PRO 6000 WS securitySchemes: bearerAuth: type: http scheme: bearer description: API key passed as a Bearer token. Create one in the dashboard. ````