> ## Documentation Index > Fetch the complete documentation index at: https://doc.prometheus.services/llms.txt > Use this file to discover all available pages before exploring further. # List benchmarks > Benchmark indices and sector ETFs. ## OpenAPI ````yaml /openapi.json get /api/v1/indices openapi: 3.1.0 info: title: Prometheus API version: 1.0.0 description: >- Audit-grade financial data: SEC 10-K/10-Q/8-K filings parsed from XBRL into standardized statements where every number links back to its source fact; earnings-call transcripts turned into verified observations and guidance scorecards; a bitemporal (point-in-time) macro cube; benchmark, commodity and compute-price series; and a validated causal claim graph. Tiers: `public` endpoints need no credentials. Everything else takes an **API key** — create one on the Developers page in the terminal (https://www.prometheus.services/developers) and send it as `X-API-KEY: pk_live_...` (or `Authorization: Bearer pk_live_...`). Signed-in terminal sessions may use their Cognito ID token instead. Rate limits and quotas are per plan (fixed UTC windows): Free — 30 req/min, 250 req/day; Build ($200/mo) — 300 req/min, 100,000 req/month; Scale — custom. Responses carry RateLimit-* and X-Quota-* headers; a 429 carries `Retry-After` and a machine `code` of rate_limited or quota_exceeded. Not investment advice. See /terms. contact: email: sales@prometheus.finance termsOfService: https://www.prometheus.services/terms servers: - url: https://www.prometheus.services security: [] tags: - name: Search & Meta description: Entity resolution and platform metadata. - name: Company Data description: Profiles, structure, leadership, calendars. - name: Financial Statements description: >- Standardized XBRL-derived statements — every line traceable to its filing via fact provenance. - name: SEC Filings description: The filing index and parsed section text. - name: 8-K Events description: Material events, typed by family, with extracted item text. - name: Transcripts & Calls description: Earnings-call transcripts, span-anchored observations, IR decks. - name: Guidance & Scorecards description: What management promised vs. what happened. - name: Ownership & Insiders description: 13F holders, Forms 3/4/5, the people registry. - name: Macro description: Point-in-time economic series and central-bank text. - name: Market Data description: Daily bars for stocks, benchmarks, commodities and compute. - name: Intelligence description: Narratives, the validated claim graph, scenario simulation. - name: Analytics description: Correlation and charting over any catalog series. paths: /api/v1/indices: get: tags: - Market Data summary: List benchmarks description: Benchmark indices and sector ETFs. operationId: get-list-benchmarks responses: '200': description: OK content: application/json: schema: type: object additionalProperties: true example: indices: - symbol: SPY name: SPDR S&P 500 ETF Trust short_name: S&P 500 category: broad_market benchmark_role: market sector_key: null index_family: S&P 500 issuer: State Street expense_ratio: 0.0945 inception_date: '1993-01-22' last_price: 765.719971 last_price_date: '2026-08-21' return_1d: 0.004091260291358756 return_1w: -0.013679645040381216 return_1m: 0.023306705142601025 return_ytd: 0.12885560863708556 return_1y: 0.21816440082463728 return_5y: 0.847878538609889 low_52w: 629.280029 high_52w: 779.369995 volatility_30d: 0.12358656186305594 price_rows: 8448 days_stale: 3 - symbol: QQQ name: Invesco QQQ Trust, Series 1 short_name: Nasdaq-100 category: broad_market benchmark_role: none sector_key: null index_family: Nasdaq-100 issuer: Invesco expense_ratio: 0.2 inception_date: '1999-03-10' last_price: 713.440002 last_price_date: '2026-08-21' return_1d: 0.0035305993905367927 return_1w: -0.024115344400936434 return_1m: 0.006304965207052593 return_ytd: 0.16411036717849448 return_1y: 0.27268141471996343 return_5y: 0.9991140896122617 low_52w: 555.599976 high_52w: 748.650024 volatility_30d: 0.21897382889282002 price_rows: 6906 days_stale: 3 - symbol: DIA name: SPDR Dow Jones Industrial Average ETF short_name: Dow 30 category: broad_market benchmark_role: none sector_key: null index_family: Dow Jones Industrial Average issuer: State Street expense_ratio: 0.16 inception_date: '1998-01-14' last_price: 532.219971 last_price_date: '2026-08-21' return_1d: 0.009765199544523151 return_1w: -0.007710040455795486 return_1m: 0.021382576900711436 return_ytd: 0.11701306676802092 return_1y: 0.2063183455157358 return_5y: 0.6524115739244694 low_52w: 450.160004 high_52w: 546.75 volatility_30d: 0.1276985638829502 price_rows: 7192 days_stale: 3 '400': description: Invalid parameter. content: application/json: schema: $ref: '#/components/schemas/Error' '401': description: Missing or invalid bearer token. content: application/json: schema: $ref: '#/components/schemas/Error' '404': description: Unknown company, country, symbol or resource. content: application/json: schema: $ref: '#/components/schemas/Error' '429': description: Rate limited. Honour Retry-After. content: application/json: schema: $ref: '#/components/schemas/Error' security: - apiKey: [] - cognitoIdToken: [] components: schemas: Error: type: object required: - error properties: error: type: string description: Human-readable message. code: type: string description: >- Stable machine code when present: unauthenticated, upgrade_required, rate_limited, quota_exceeded. enum: - unauthenticated - upgrade_required - rate_limited - quota_exceeded securitySchemes: apiKey: type: apiKey in: header name: X-API-KEY description: >- Prometheus API key (pk_live_...), created on the Developers page in the terminal. Also accepted as `Authorization: Bearer pk_live_...`. x-default: pk_live_YOUR_KEY cognitoIdToken: type: http scheme: bearer bearerFormat: JWT description: >- Amazon Cognito ID token (token_use=id) for the Prometheus user pool — the terminal's own session credential. API consumers should use an API key instead. ````