> ## Documentation Index > Fetch the complete documentation index at: https://docs.delphimarkets.com/llms.txt > Use this file to discover all available pages before exploring further. # Download Dataset by Date > Download RFQ or MVE trades data for a specific date as presigned S3 URLs. Returns a finalized daily Parquet file if the day is complete, or live hourly JSONL parts if the day is still in progress. Requires a Max or Admin plan. ## What you get - Presigned S3 download URLs (valid for 5 minutes) - Automatic detection of finalized vs live data - Full daily Parquet file for completed days - Hourly JSONL parts for the current day ## Use cases - Bulk download historical data for backtesting - Build local analytics pipelines - Feed data into Pandas, Polars, or DuckDB - Stream today's data hour-by-hour for near-real-time analytics ## Datasets - rfq: Kalshi Request for Quote events (same schema as the /klsi/{id}/rfq endpoint) - mve_trades: Kalshi Multi-Value Event parlay trades (same schema as the /klsi/{id}/mve_trades endpoint) ## Example - Request: `GET /api/v1/data/rfq?date=2026-02-25` - Header: `X-API-Key: YOUR_API_KEY` ## OpenAPI ````yaml /openapi-parlays.json get /api/v1/data/{dataset} openapi: 3.0.3 info: title: Delphi Markets Parlays API description: >- Kalshi RFQ (Request for Quote) and MVE (Multi-Value Event) parlay trade data, plus bulk data export endpoints. version: 1.0.0 contact: name: Delphi Markets url: https://delphimarkets.com servers: - url: https://api.delphiterminal.co description: Delphi Markets API security: - ApiKeyAuth: [] tags: - name: Parlays description: >- Kalshi RFQ (Request for Quote) and MVE (Multi-Value Event) parlay trade data. Includes individual RFQ lookups, parlay trade history, and bulk data export in Parquet/JSONL format. paths: /api/v1/data/{dataset}: get: tags: - Parlays summary: Download Dataset by Date description: >- Download RFQ or MVE trades data for a specific date as presigned S3 URLs. Returns a finalized daily Parquet file if the day is complete, or live hourly JSONL parts if the day is still in progress. Requires a Max or Admin plan. ## What you get - Presigned S3 download URLs (valid for 5 minutes) - Automatic detection of finalized vs live data - Full daily Parquet file for completed days - Hourly JSONL parts for the current day ## Use cases - Bulk download historical data for backtesting - Build local analytics pipelines - Feed data into Pandas, Polars, or DuckDB - Stream today's data hour-by-hour for near-real-time analytics ## Datasets - rfq: Kalshi Request for Quote events (same schema as the /klsi/{id}/rfq endpoint) - mve_trades: Kalshi Multi-Value Event parlay trades (same schema as the /klsi/{id}/mve_trades endpoint) ## Example - Request: `GET /api/v1/data/rfq?date=2026-02-25` - Header: `X-API-Key: YOUR_API_KEY` parameters: - name: dataset in: path required: true schema: type: string enum: - rfq - mve_trades description: Dataset to download example: rfq - name: date in: query required: false schema: type: string format: date description: Date in YYYY-MM-DD format. Defaults to today (UTC). example: '2026-02-25' - name: hour in: query required: false schema: type: string description: >- Hour filter (00-23). Only applies to live (non-finalized) days. Returns only parts for that specific hour. example: '14' responses: '200': description: Data export with presigned download URLs content: application/json: schema: $ref: '#/components/schemas/DataExportResponse' '400': $ref: '#/components/responses/BadRequest' '403': description: Forbidden - requires Max or Admin plan '404': $ref: '#/components/responses/NotFound' security: - ApiKeyAuth: [] components: schemas: DataExportResponse: type: object description: >- Response containing presigned S3 download URLs for a dataset export. The status field indicates whether this is a finalized daily Parquet or live hourly JSONL parts. properties: dataset: type: string description: Dataset name (rfq or mve_trades) example: rfq date: type: string format: date description: Date of the data (YYYY-MM-DD) example: '2026-02-25' status: type: string enum: - final - live description: >- Whether the data is finalized (full daily Parquet) or live (hourly JSONL parts) format: type: string enum: - parquet - jsonl.gz description: File format of the downloadable parts hour: type: string description: Hour filter applied (only present when filtering live data by hour) example: '14' parts: type: array items: $ref: '#/components/schemas/DataExportPart' description: List of downloadable file parts with presigned URLs DataExportPart: type: object description: A single downloadable file part with a presigned S3 URL. properties: key: type: string description: S3 object key example: parquet_exports/rfq/dt=2026-02-25/daily.parquet url: type: string description: Presigned download URL (valid for 5 minutes) size_bytes: type: integer description: File size in bytes last_modified: type: string format: date-time description: Last modified timestamp responses: BadRequest: description: Bad request content: application/json: schema: $ref: 7c883300-dac6-45b5-8d4b-ec6633419325 NotFound: description: Not found content: application/json: schema: $ref: 7c883300-dac6-45b5-8d4b-ec6633419325 securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-Key description: Your API key (get one from the test-key endpoint above) ````