> ## Documentation Index > Fetch the complete documentation index at: https://docs.messari.io/llms.txt > Use this file to discover all available pages before exploring further. # List ETF Metrics > Returns the metric catalog for both ETF datasets in one response: the provider grain, one series per issuer, and the asset grain, one series per underlying crypto asset. Both publish a dataset slugged overview, so each entry carries a grain telling them apart. Use the metric slugs here to read the point arrays the ETF time series endpoints return. ## OpenAPI ````yaml GET /metrics/v2/protocols/etfs/metrics openapi: 3.0.0 info: description: OpenAPI specification for the entire Messari API title: Messari API - Metrics V2 version: 1.0.0 servers: - description: Messari API url: https://api.messari.io security: [] paths: /metrics/v2/protocols/etfs/metrics: get: tags: - metrics/protocols/etfs summary: List ETF Metrics description: >- Returns the metric catalog for both ETF datasets in one response: the provider grain, one series per issuer, and the asset grain, one series per underlying crypto asset. Both publish a dataset slugged overview, so each entry carries a grain telling them apart. Use the metric slugs here to read the point arrays the ETF time series endpoints return. operationId: getETFsTimeseriesCatalog parameters: [] responses: '200': content: application/json: schema: properties: data: $ref: '#/components/schemas/ETFTimeseriesCatalog' error: type: string required: - data type: object example: error: null data: datasets: - grain: providers slug: overview granularities: - 1d metrics: - name: Timestamp slug: time description: Timestamp of the data point. is_timestamp: true - name: AUM (USD) slug: aum-usd description: >- Assets under management across the provider's crypto ETF products in USD. Sourced from Blockworks Research. is_timestamp: false - name: Flow (USD) slug: flow-usd description: >- Daily net flow across the provider's crypto ETF products in USD. Sourced from Blockworks Research. is_timestamp: false - name: Product Count slug: num-products description: >- Number of active products with positive AUM. Sourced from Blockworks Research. is_timestamp: false - name: Weighted Expense Ratio slug: weighted-aum-expense-ratio description: >- AUM-weighted average expense ratio. Sourced from Blockworks Research. is_timestamp: false - name: Bitcoin AUM Share slug: bitcoin-aum-perc description: >- Share of AUM in bitcoin products (0-1). Sourced from Blockworks Research. is_timestamp: false - name: Spot AUM Share slug: spot-aum-perc description: >- Share of AUM in delta-one (spot) products (0-1). Sourced from Blockworks Research. is_timestamp: false - name: Rolling 30d Flow (USD) slug: rolling-30d-flow-usd description: >- Rolling 30-day net flow in USD. Sourced from Blockworks Research. is_timestamp: false - name: AUM 30d Change slug: aum-30d-change-perc description: >- AUM change versus 30 days ago as a ratio. Sourced from Blockworks Research. is_timestamp: false - grain: assets slug: overview granularities: - 1d metrics: - name: Timestamp slug: time description: Timestamp of the data point. is_timestamp: true - name: Spot AUM (USD) slug: type-spot-aum-usd description: >- Spot product AUM in USD. Sourced from Blockworks Research. is_timestamp: false - name: Spot Flow (USD) slug: type-spot-flow-usd description: >- Spot product daily net flow in USD. Sourced from Blockworks Research. is_timestamp: false - name: Spot Product Count slug: type-spot-product-count description: >- Number of spot products. Sourced from Blockworks Research. is_timestamp: false - name: Futures AUM (USD) slug: type-futures-aum-usd description: >- Futures product AUM in USD. Sourced from Blockworks Research. is_timestamp: false - name: Futures Flow (USD) slug: type-futures-flow-usd description: >- Futures product daily net flow in USD. Sourced from Blockworks Research. is_timestamp: false - name: Futures Product Count slug: type-futures-product-count description: >- Number of futures products. Sourced from Blockworks Research. is_timestamp: false - name: US Spot AUM (USD) slug: type-spot-unitedstates-aum-usd description: >- US spot product AUM in USD. Sourced from Blockworks Research. is_timestamp: false - name: US Spot Flow (USD) slug: type-spot-unitedstates-flow-usd description: >- US spot product daily net flow in USD. Sourced from Blockworks Research. is_timestamp: false - name: US Spot Product Count slug: type-spot-unitedstates-product-count description: >- Number of US spot products. Sourced from Blockworks Research. is_timestamp: false - name: Europe Spot AUM (USD) slug: type-spot-europe-aum-usd description: >- European spot product AUM in USD. Sourced from Blockworks Research. is_timestamp: false - name: Europe Spot Flow (USD) slug: type-spot-europe-flow-usd description: >- European spot product daily net flow in USD. Sourced from Blockworks Research. is_timestamp: false - name: Europe Spot Product Count slug: type-spot-europe-product-count description: >- Number of European spot products. Sourced from Blockworks Research. is_timestamp: false - name: APAC Spot AUM (USD) slug: type-spot-apac-aum-usd description: >- APAC spot product AUM in USD. Sourced from Blockworks Research. is_timestamp: false - name: APAC Spot Flow (USD) slug: type-spot-apac-flow-usd description: >- APAC spot product daily net flow in USD. Sourced from Blockworks Research. is_timestamp: false - name: APAC Spot Product Count slug: type-spot-apac-product-count description: >- Number of APAC spot products. Sourced from Blockworks Research. is_timestamp: false - name: Delta-One AUM (USD) slug: strategy-deltaone-aum-usd description: >- Delta-one strategy AUM in USD. Sourced from Blockworks Research. is_timestamp: false - name: Delta-One Flow (USD) slug: strategy-deltaone-flow-usd description: >- Delta-one strategy daily net flow in USD. Sourced from Blockworks Research. is_timestamp: false - name: Delta-One Product Count slug: strategy-deltaone-product-count description: >- Number of delta-one products. Sourced from Blockworks Research. is_timestamp: false - name: Leveraged AUM (USD) slug: strategy-leveraged-aum-usd description: >- Leveraged strategy AUM in USD. Sourced from Blockworks Research. is_timestamp: false - name: Leveraged Flow (USD) slug: strategy-leveraged-flow-usd description: >- Leveraged strategy daily net flow in USD. Sourced from Blockworks Research. is_timestamp: false - name: Leveraged Product Count slug: strategy-leveraged-product-count description: >- Number of leveraged products. Sourced from Blockworks Research. is_timestamp: false - name: Total Volume (USD) slug: total-volume-usd description: >- Total traded volume in USD. Sourced from Blockworks Research. is_timestamp: false - name: US Volume (USD) slug: volume-unitedstates-usd description: >- US traded volume in USD. Sourced from Blockworks Research. is_timestamp: false - name: Europe Volume (USD) slug: volume-europe-usd description: >- European traded volume in USD. Sourced from Blockworks Research. is_timestamp: false - name: APAC Volume (USD) slug: volume-apac-usd description: >- APAC traded volume in USD. Sourced from Blockworks Research. is_timestamp: false description: OK '400': content: application/json: schema: properties: data: {} error: type: string required: - data type: object description: Bad Request '401': content: application/json: schema: properties: data: {} error: type: string required: - data type: object description: Unauthorized '500': content: application/json: schema: properties: data: {} error: type: string required: - data type: object description: Internal Server Error security: - apiKey: [] components: schemas: ETFTimeseriesCatalog: type: object properties: datasets: type: array items: $ref: '#/components/schemas/ETFTimeseriesDataset' required: - datasets ETFTimeseriesDataset: type: object properties: grain: type: string enum: - providers - assets description: >- Which collection the dataset belongs to. The two grains are independent cuts of the same data, so both publish the same dataset slug under different collections. slug: type: string description: Dataset slug, as it appears in the time series paths. granularities: type: array items: type: string description: Granularities the dataset serves. metrics: type: array items: $ref: '#/components/schemas/metricsPointSchema' description: >- One entry per column of a point, in point order. The first is always the timestamp. required: - grain - slug - granularities - metrics metricsPointSchema: type: object description: Schema for metricsPointSchema properties: {} additionalProperties: true securitySchemes: apiKey: in: header name: X-Messari-API-Key type: apiKey ````