{ "openapi": "3.0.1", "info": { "title": "Polymarket vs Kalshi API: Matched Markets, Gaps & Sports", "description": "The same prediction market on Polymarket and Kalshi, matched and verified, with both prices, the gap and alerts when a gap opens. Elections, economics, crypto and sports: winner, spread and total lines in 100+ leagues. Instant API. $3 per 1,000 rows.", "version": "0.0", "x-build-id": "wpln8O81O3bZboER8" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/forgedata~prediction-markets-api/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-forgedata-prediction-markets-api", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$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/forgedata~prediction-markets-api/runs": { "post": { "operationId": "runs-sync-forgedata-prediction-markets-api", "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/forgedata~prediction-markets-api/run-sync": { "post": { "operationId": "run-sync-forgedata-prediction-markets-api", "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": { "mode": { "title": "What to get", "enum": [ "pairs", "alerts", "markets", "refresh" ], "type": "string", "description": "Pairs: the same market on Polymarket and Kalshi with both prices and the gap. Markets: every open market on both platforms in one format.", "default": "pairs" }, "q": { "title": "Keywords", "type": "string", "description": "Keep rows that mention all of these words, e.g. senate, fed rate, bitcoin, trump. Leave empty for everything.", "default": "" }, "category": { "title": "Category", "type": "string", "description": "Optional, e.g. Elections, Politics, Economics, Crypto, Financials, Science and Technology, Entertainment, Climate and Weather.", "default": "" }, "sports": { "title": "Sports (pairs and alerts)", "enum": [ "", "only", "exclude" ], "type": "string", "description": "Only sports games, no sports, or both.", "default": "" }, "league": { "title": "League (sports)", "type": "string", "description": "Comma-separated Polymarket league codes, e.g. nba, nfl, nhl, cfb, epl, lal, cs2.", "default": "" }, "type": { "title": "Bet type (sports)", "enum": [ "", "moneyline", "spread", "total" ], "type": "string", "description": "Game winner, spread or total points.", "default": "" }, "tier": { "title": "Match quality (pairs)", "enum": [ "verified", "candidate", "all" ], "type": "string", "description": "Verified pairs passed every check: names, numbers, thresholds and deadlines agree. Candidates are close matches that failed at least one check, with the reason in notes.", "default": "verified" }, "minGap": { "title": "Minimum gap in points (pairs)", "minimum": 0, "type": "integer", "description": "Only pairs whose Yes prices differ by at least this many cents.", "default": 0 }, "minEdge": { "title": "Minimum pre-fee edge in points (pairs)", "minimum": 0, "type": "integer", "description": "Only pairs where buying Yes on one side and No on the other would lock in at least this many cents before fees.", "default": 0 }, "hours": { "title": "Alert window in hours (alerts)", "minimum": 1, "maximum": 72, "type": "integer", "description": "Alerts: gaps that opened within this many hours (max 72).", "default": 6 }, "tradedToday": { "title": "Traded in the last 24 hours on both platforms (pairs)", "type": "boolean", "description": "Only pairs with volume in the last 24 hours and live quotes on both sides.", "default": false }, "platform": { "title": "Platform (markets)", "enum": [ "", "polymarket", "kalshi" ], "type": "string", "description": "Markets mode: which platform to list.", "default": "" }, "minVolume": { "title": "Minimum total volume", "minimum": 0, "type": "integer", "description": "Dollars on Polymarket, contracts on Kalshi. For pairs, both sides must reach it.", "default": 0 }, "closesBefore": { "title": "Closes before (markets)", "type": "string", "description": "Optional date, e.g. 2026-12-31.", "default": "" }, "sort": { "title": "Sort by", "enum": [ "gap", "edge", "volume", "volume24h", "closes" ], "type": "string", "description": "How to order the results.", "default": "gap" }, "maxResults": { "title": "Max results", "minimum": 1, "maximum": 100000, "type": "integer", "description": "Most rows to return.", "default": 100 }, "signupUrl": { "title": "Signup link for the public page (refresh only)", "type": "string", "description": "Link for the Get early access button on the public page.", "default": "" }, "showApiUrl": { "title": "Show the API address on the public page (refresh only)", "type": "boolean", "description": "Shows the API address at the bottom of the public page.", "default": false }, "includeSports": { "title": "Include sports markets (refresh only)", "type": "boolean", "description": "On by default.", "default": true }, "approvePairs": { "title": "Approve pairs by id (refresh only)", "type": "array", "description": "Pair ids like 516706~KXALIENS-27 to mark as verified. Saved for future runs.", "default": [], "items": { "type": "string" } }, "rejectPairs": { "title": "Reject pairs by id (refresh only)", "type": "array", "description": "Pair ids that are not the same market. Saved for future runs.", "default": [], "items": { "type": "string" } } } }, "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 }, "PROXY_UNBLOCKER_UNITS": { "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 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } } } } } } } } }