{ "openapi": "3.0.1", "info": { "title": "Polymarket & Kalshi Prediction Market Scraper", "description": "Scrape live prediction market odds from Polymarket and Kalshi in one normalized dataset: prices, implied probability, bid/ask, volume, liquidity, close dates, and settled winners. Search by keyword; filter by category, status, volume, or end date. Fast public-API scraping — no browser, no login.", "version": "0.0", "x-build-id": "NqbUfpaWh5goaGNtP" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/teodor_banea~polymarket-kalshi-prediction-market-scraper/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-teodor_banea-polymarket-kalshi-prediction-market-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/teodor_banea~polymarket-kalshi-prediction-market-scraper/runs": { "post": { "operationId": "runs-sync-teodor_banea-polymarket-kalshi-prediction-market-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/teodor_banea~polymarket-kalshi-prediction-market-scraper/run-sync": { "post": { "operationId": "run-sync-teodor_banea-polymarket-kalshi-prediction-market-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "properties": { "platforms": { "title": "Platforms", "uniqueItems": true, "type": "array", "description": "Select which prediction market platforms to scrape. Both are selected by default and the result cap is split evenly between them.", "items": { "type": "string", "enum": [ "polymarket", "kalshi" ], "enumTitles": [ "Polymarket", "Kalshi" ] }, "default": [ "polymarket", "kalshi" ] }, "searchQuery": { "title": "Search query", "type": "string", "description": "Enter keywords to search markets (e.g. \"bitcoin\", \"fed rate\", \"champions league\"). Polymarket is searched server-side by relevance; Kalshi markets are matched on question, event title, and outcome — every word must appear." }, "category": { "title": "Category", "type": "string", "description": "Filter markets by category or tag, matched case-insensitively as a substring (e.g. \"politics\", \"sports\", \"crypto\", \"economics\", \"weather\"). Leave empty for all categories." }, "status": { "title": "Market status", "enum": [ "active", "resolved", "all" ], "type": "string", "description": "Choose which markets to return: currently trading, already resolved (with final prices), or both.", "default": "active" }, "minVolume": { "title": "Minimum volume", "minimum": 0, "maximum": 1000000000, "type": "integer", "description": "Skip markets with total volume below this value (USD on Polymarket, contracts on Kalshi). Use it to drop dead markets nobody trades.", "default": 0 }, "minLiquidity": { "title": "Minimum liquidity", "minimum": 0, "maximum": 1000000000, "type": "integer", "description": "Skip markets with liquidity below this value in USD. Polymarket only — Kalshi does not publish liquidity, so setting this limits the run to Polymarket.", "default": 0 }, "endingAfter": { "title": "Ending after", "type": "string", "description": "Only include markets that close on or after this date. Useful for skipping markets that are about to end." }, "endingBefore": { "title": "Ending before", "type": "string", "description": "Only include markets that close on or before this date (inclusive). Useful for \"what resolves this week\" runs." }, "maxMarkets": { "title": "Maximum markets", "minimum": 0, "maximum": 100000, "type": "integer", "description": "Cap on how many markets are returned in total (split evenly when both platforms are selected). Set to 0 for unlimited — unlimited runs without narrowing filters are capped at 10,000 to protect against surprise bills.", "default": 200 }, "maxConcurrency": { "title": "Maximum concurrency", "minimum": 1, "maximum": 10, "type": "integer", "description": "How many requests run in parallel. Each platform paginates sequentially, so the default of 2 is already optimal — raise it only if retries pile up.", "default": 2 }, "maxRequestsPerMinute": { "title": "Maximum requests per minute", "minimum": 10, "maximum": 300, "type": "integer", "description": "Throttle the overall request rate. Both APIs tolerate the default comfortably.", "default": 60 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } }