{ "info": { "_postman_id": "736913c7-8585-428a-b0ad-6b5c8b1a6f87", "name": "Theta Data v3 At-Time FlatFile API", "description": "Real-time and historic stock, options, and index data!", "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json", "createdAt": "2026-07-28T03:11:27.000Z", "updatedAt": "2026-07-28T03:11:27.000Z", "lastUpdatedBy": "35240", "uid": "35240-736913c7-8585-428a-b0ad-6b5c8b1a6f87" }, "item": [ { "name": "option", "item": [ { "name": "flat_file", "item": [ { "name": "trade_quote", "item": [ { "name": "Option Flat File Trade Quote", "id": "cc6a7650-ae4f-452e-bb07-eb157eb568e1", "protocolProfileBehavior": { "disableBodyPruning": true }, "request": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/option/flat_file/trade_quote?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "option", "flat_file", "trade_quote" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] }, "description": "Bulk download all option trade/quote ticks for a given date as a CSV stream. Returns one row per tick, grouped by contract. Requires a Professional options subscription.\n" }, "response": [ { "id": "da418633-d60e-43ec-afd2-f778ebaa8cba", "name": "CSV stream of all option trade/quote ticks for the given date", "originalRequest": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/option/flat_file/trade_quote?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "option", "flat_file", "trade_quote" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "[\n {\n \"root\": \"\",\n \"expiration\": \"\",\n \"strike\": \"\",\n \"right\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n },\n {\n \"root\": \"\",\n \"expiration\": \"\",\n \"strike\": \"\",\n \"right\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n }\n]", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-da418633-d60e-43ec-afd2-f778ebaa8cba" } ], "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-cc6a7650-ae4f-452e-bb07-eb157eb568e1" } ], "id": "678030da-2961-4082-b944-da577aa45fce", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-678030da-2961-4082-b944-da577aa45fce" }, { "name": "eod", "item": [ { "name": "Option Flat File EOD", "id": "de48651b-706f-40a2-8821-244e3e2dca69", "protocolProfileBehavior": { "disableBodyPruning": true }, "request": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/option/flat_file/eod?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "option", "flat_file", "eod" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] }, "description": "Bulk download all option end-of-day ticks for a given date as a CSV stream. Returns one row per tick, grouped by contract. Requires a Professional options subscription.\n" }, "response": [ { "id": "d64926d4-fac2-4647-ba30-e157faf1ad13", "name": "CSV stream of all option EOD ticks for the given date", "originalRequest": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/option/flat_file/eod?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "option", "flat_file", "eod" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "[\n {\n \"root\": \"\",\n \"expiration\": \"\",\n \"strike\": \"\",\n \"right\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n },\n {\n \"root\": \"\",\n \"expiration\": \"\",\n \"strike\": \"\",\n \"right\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n }\n]", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-d64926d4-fac2-4647-ba30-e157faf1ad13" } ], "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-de48651b-706f-40a2-8821-244e3e2dca69" } ], "id": "03074dc4-41e7-4e39-9322-6dab2d8b770c", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-03074dc4-41e7-4e39-9322-6dab2d8b770c" }, { "name": "open_interest", "item": [ { "name": "Option Flat File Open Interest", "id": "8c83569b-6f2c-4d25-a400-9c29b736d9ea", "protocolProfileBehavior": { "disableBodyPruning": true }, "request": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/option/flat_file/open_interest?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "option", "flat_file", "open_interest" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] }, "description": "Bulk download all option open interest ticks for a given date as a CSV stream. Returns one row per tick, grouped by contract. Requires a Professional options subscription.\n" }, "response": [ { "id": "40251468-67a4-4f70-8315-4f4463f82a88", "name": "CSV stream of all option open interest ticks for the given date", "originalRequest": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/option/flat_file/open_interest?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "option", "flat_file", "open_interest" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "[\n {\n \"root\": \"\",\n \"expiration\": \"\",\n \"strike\": \"\",\n \"right\": \"\",\n \"ms_of_day\": \"\",\n \"open_interest\": \"\",\n \"date\": \"\"\n },\n {\n \"root\": \"\",\n \"expiration\": \"\",\n \"strike\": \"\",\n \"right\": \"\",\n \"ms_of_day\": \"\",\n \"open_interest\": \"\",\n \"date\": \"\"\n }\n]", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-40251468-67a4-4f70-8315-4f4463f82a88" } ], "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-8c83569b-6f2c-4d25-a400-9c29b736d9ea" } ], "id": "d37c12e2-515b-4e22-8381-0f469c884151", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-d37c12e2-515b-4e22-8381-0f469c884151" } ], "id": "e0287fc9-cccc-4651-8adc-1717dfd5b3d7", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-e0287fc9-cccc-4651-8adc-1717dfd5b3d7" } ], "id": "b2929452-fbdd-43fb-9f30-0fa34a7da822", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-b2929452-fbdd-43fb-9f30-0fa34a7da822" }, { "name": "stock", "item": [ { "name": "flat_file", "item": [ { "name": "trade_quote", "item": [ { "name": "Stock Flat File Trade Quote", "id": "f1da9e3d-92cf-4cf6-bf64-cdc164d221af", "protocolProfileBehavior": { "disableBodyPruning": true }, "request": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/stock/flat_file/trade_quote?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "stock", "flat_file", "trade_quote" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] }, "description": "Bulk download all stock trade/quote ticks for a given date as a CSV stream. Returns one row per tick, grouped by symbol. Requires a Professional stock subscription.\n" }, "response": [ { "id": "ce9f4c6f-cc9f-48df-8c71-9f66b31371d4", "name": "CSV stream of all stock trade/quote ticks for the given date", "originalRequest": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/stock/flat_file/trade_quote?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "stock", "flat_file", "trade_quote" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "[\n {\n \"root\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n },\n {\n \"root\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n }\n]", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-ce9f4c6f-cc9f-48df-8c71-9f66b31371d4" } ], "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-f1da9e3d-92cf-4cf6-bf64-cdc164d221af" } ], "id": "a18e0f45-96df-4708-a491-a576ca8b41a5", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-a18e0f45-96df-4708-a491-a576ca8b41a5" }, { "name": "eod", "item": [ { "name": "Stock Flat File EOD", "id": "22ea3953-4987-43d7-800b-57bf23987d25", "protocolProfileBehavior": { "disableBodyPruning": true }, "request": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/stock/flat_file/eod?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "stock", "flat_file", "eod" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] }, "description": "Bulk download all stock end-of-day ticks for a given date as a CSV stream. Returns one row per tick, grouped by symbol. Requires a Professional stock subscription.\n" }, "response": [ { "id": "c3d4ad16-e125-4c83-a571-198a3706f62c", "name": "CSV stream of all stock EOD ticks for the given date", "originalRequest": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/stock/flat_file/eod?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "stock", "flat_file", "eod" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "[\n {\n \"root\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n },\n {\n \"root\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n }\n]", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-c3d4ad16-e125-4c83-a571-198a3706f62c" } ], "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-22ea3953-4987-43d7-800b-57bf23987d25" } ], "id": "b503c783-54b5-492a-aadd-a1eb0e0eb84f", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-b503c783-54b5-492a-aadd-a1eb0e0eb84f" } ], "id": "f48dde24-f63f-4187-9c13-4900c3a746ed", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-f48dde24-f63f-4187-9c13-4900c3a746ed" } ], "id": "0fe13e28-4fc3-438a-88e9-aebe12e131bf", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-0fe13e28-4fc3-438a-88e9-aebe12e131bf" }, { "name": "index", "item": [ { "name": "flat_file", "item": [ { "name": "eod", "item": [ { "name": "Index Flat File EOD", "id": "fa210185-6632-4094-9143-2385a57f318a", "protocolProfileBehavior": { "disableBodyPruning": true }, "request": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/index/flat_file/eod?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "index", "flat_file", "eod" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] }, "description": "Bulk download all index end-of-day ticks for a given date as a CSV stream. Returns one row per tick, grouped by symbol. Requires a Professional indices subscription.\n" }, "response": [ { "id": "0c95502b-353a-42b1-baf8-4323326f6d15", "name": "CSV stream of all index EOD ticks for the given date", "originalRequest": { "method": "GET", "header": [ { "key": "Accept", "value": "text/csv" } ], "url": { "raw": "{{baseUrl}}/index/flat_file/eod?date=&format=csv", "host": [ "{{baseUrl}}" ], "path": [ "index", "flat_file", "eod" ], "query": [ { "description": "(Required) The date to fetch data for.", "key": "date", "value": "" }, { "description": "The format of the data when returned to the user.", "key": "format", "value": "csv" } ] } }, "status": "OK", "code": 200, "_postman_previewlanguage": "json", "header": [ { "key": "Content-Type", "value": "application/json" } ], "cookie": [], "responseTime": null, "body": "[\n {\n \"root\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n },\n {\n \"root\": \"\",\n \"ms_of_day\": \"\",\n \"date\": \"\"\n }\n]", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-0c95502b-353a-42b1-baf8-4323326f6d15" } ], "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-fa210185-6632-4094-9143-2385a57f318a" } ], "id": "33d25023-f22b-462c-8988-4321a2442651", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-33d25023-f22b-462c-8988-4321a2442651" } ], "id": "17cd75ae-363c-4c5f-9a4b-e1edc0091cf3", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-17cd75ae-363c-4c5f-9a4b-e1edc0091cf3" } ], "id": "e91dc50d-6dbd-475a-a633-4220a034365e", "createdAt": "2026-07-28T03:11:28.000Z", "updatedAt": "2026-07-28T03:11:28.000Z", "uid": "35240-e91dc50d-6dbd-475a-a633-4220a034365e" } ], "variable": [ { "key": "baseUrl", "value": "http://127.0.0.1:25503/v3" } ] }