Tag
API
Index99 entries
01Unified Prediction Market API (2026): One Schema for 15+ VenuesWhat a unified prediction market API is, what normalization covers, and how one schema and one key read Polymarket, Kalshi and 15+ venues.APIOct 18, 2026→02Sports Prediction Market API (2026): Kalshi, Polymarket, Novig and MoreHow to get sports markets from Kalshi, Polymarket, Novig and ProphetX by API, and how to compare the same game and line across venues in one call.APIOct 18, 2026→03Prediction Market WebSocket vs REST API (2026): When to Use EachWhen to use REST and when to use WebSockets for prediction market data, how Polymarket and Kalshi streams work, and how to stream every venue.APIOct 18, 2026→04Prediction Market Order Book API (2026): Depth Across Every VenueHow Polymarket and Kalshi order book APIs differ, a live script that normalizes both, and how to read books from 15+ venues in one shape.APIOct 18, 2026→05Prediction Market Historical Data API (2026): OHLCV for Every VenueHow to pull Polymarket price history and Kalshi candlesticks for free, and OHLCV candles for 15+ venues in one call at 12 resolutions.APIOct 18, 2026→06Prediction Market MCP Server (2026): Connect AI Agents to Every VenueHow to connect Claude, Cursor and other AI clients to 15+ prediction market venues with one MCP server: setup, tools, paper trading and trading.APIOct 18, 2026→07Prediction Market Odds API (2026): Live Probabilities From Every VenueHow to get live prediction market odds from Polymarket and Kalshi, convert prices to American and decimal odds, and read 15+ venues at once.APIOct 18, 2026→08Prediction Market Data in Google Sheets and Excel (2026)How to pull live Polymarket and Kalshi prices into Google Sheets with Apps Script and into Excel with Power Query, with tested code and steps.APIOct 18, 2026→09How to Build a Prediction Market Dashboard With an API (2026)Build a live prediction market dashboard in about 40 lines of Node.js from Polymarket and Kalshi data, then scale it to 15+ venues with one API.APIOct 18, 2026→10Prediction Market API Pricing (2026): What Every Provider ChargesWhat prediction market APIs cost in 2026: free venue APIs, Predictefy plans and credits, and published prices from other data providers.APIOct 18, 2026→11Polymarket Liquidity Rewards (2026): How Maker Rebates WorkHow Polymarket liquidity rewards and maker rebates work: the scoring rule, epochs, rebate rates by category, and how to find rewarded markets.APIOct 18, 2026→12Polymarket Arbitrage Bot in Python (2026)Build a Polymarket arbitrage bot in Python: find YES/NO and negative-risk sets under $1 after fees, size them from depth, and place FOK orders.APIOct 15, 2026→13ProphetX API (2026): Access, Keys and What It CoversHow to get ProphetX API access in 2026: the Trading, Parlay and Market Data APIs, access and secret keys, the sandbox, endpoints and limits.APIOct 15, 2026→14Polymarket Subgraph (2026): GraphQL Endpoints and What Replaced ThemPolymarket's hosted subgraphs now return a deprecation error. What they indexed, why they stopped and which Data API routes replace them.APIOct 15, 2026→15Polymarket Top Holders API (2026): See Who Holds Each MarketPull any Polymarket market's top holders from the Data API, tell net from gross balances, and measure how concentrated each outcome really is.APIOct 15, 2026→16Polymarket RTDS to PolyBolt (2026): What Changed and How to MigratePolymarket moved reference prices from RTDS to PolyBolt. Here is the topic mapping, new auth, snapshots, limits, close codes, timeline and a checklist.APIOct 15, 2026→17Polymarket Heartbeat (2026): Keep WebSockets and Orders AliveHow Polymarket heartbeats work: the order heartbeat that cancels resting orders after 10 seconds, plus the PING and pong rules for every WebSocket.APIOct 15, 2026→18Polymarket Dune Analytics (2026): Dashboards, Queries and DataDune keeps curated Polymarket tables on Polygon. Here is which ones are free to query, plus SQL for daily volume, top markets and a wallet.APIOct 15, 2026→19Polymarket Comments API (2026): Read Market Comments in CodeRead Polymarket comments, replies and commenter positions with Gamma's comments API, and learn why polling has replaced the live stream.APIOct 15, 2026→20py-clob-client v2 (2026): Migrating to the Unified Polymarket SDKHow to move from py-clob-client-v2 to polymarket-client: install commands, auth changes, a method mapping table and the pitfalls to avoid.APIOct 12, 2026→21Polymarket Whale Tracker (2026): How to Track Big Wallets With the APITrack Polymarket whales with the public Data API: filter trades by dollar size, profile the wallets behind them and follow what they do next.APIOct 12, 2026→22Polymarket Perps (2026): How Perpetual Futures Work and the APIHow Polymarket Perps works in 2026: 88 markets up to 50x, hourly funding, fees, margin, invite codes, liquidity rewards and the REST and WebSocket API.APIOct 12, 2026→23Kalshi 15 Minute Bitcoin Bot (2026): How to Build One With the APIBuild a Kalshi 15 minute Bitcoin bot: find the live KXBTC15M window, read its CF Benchmarks rules, fund shard 2, and place and cancel orders.APIOct 12, 2026→24Prediction Market TradingView Charts (2026): Polymarket and KalshiTradingView does not list Polymarket or Kalshi markets. How to feed their candles and live trades into an Advanced Charts datafeed.APIOct 7, 2026→25Polymarket Sports API (2026): Live Scores, Markets and StreamsPolymarket sports data in 2026: Gamma sports, market type and team endpoints, game events, and live scores from the public Sports WebSocket.APIOct 7, 2026→26Polymarket Builders Program (2026): Builder Codes, Tiers and RewardsHow the Polymarket Builders Program works: bytes32 builder codes, fee caps of 1% taker and 0.5% maker, tier limits, rewards and the public leaderboard API.APIOct 7, 2026→27Novig API (2026): Access, Keys and DocumentationHow the Novig API works in 2026: management and trading keys, NOVIG-V3 request signing, public endpoints, rate limits and the WebSocket.APIOct 7, 2026→28Polymarket Search API (2026): Find Markets and Events by KeywordSearch Polymarket events, markets and trader profiles by keyword with Gamma's public-search endpoint, including its tag and status filters.APIOct 5, 2026→29Polymarket Order Types (2026): GTC, GTD, FOK and FAK ExplainedPolymarket's four order types explained: GTC, GTD, FOK and FAK, plus post-only, GTD expiry rules, SDK and API fields, and the errors that reject orders.APIOct 5, 2026→30Polymarket and Kalshi Rust SDKs (2026): Clients and ExamplesPolymarket's official Rust crate and the community crates for Kalshi in 2026: versions, feature flags, the CLOB host to set and a first example.APIOct 5, 2026→31Polymarket Deposit Wallet (2026): How It Works and the APIWhat a Polymarket Deposit Wallet is, how it differs from proxy and Safe wallets, how to find its address, and how gasless WALLET batches work.APIOct 5, 2026→32Polymarket Combos (2026): How Parlays and the RFQ API WorkHow Polymarket Combos work: multi-leg YES and NO positions priced by RFQ, the requester and market maker APIs, builders, collateral return and settlement.APIOct 5, 2026→33Kalshi Whale Tracker (2026): How to Spot Big Trades With the APIKalshi trades carry no user IDs, so a whale tracker follows size. How to pull big trades, block trades and order book walls from Kalshi's API.APIOct 5, 2026→34Kalshi Subaccounts API (2026): Create, Fund and Trade ThemHow Kalshi subaccounts work: the Advanced tier rule, the 63 limit, the create and transfer endpoints, restricted API keys and the subaccount field.APIOct 5, 2026→35Kalshi Sports API (2026): Markets, Odds and Live DataHow Kalshi organizes sports into series, events and markets, how to pull a league's games and odds, and how to get live scores from the API.APIOct 5, 2026→36Polymarket Tick Size (2026): Minimum Ticks, Changes and the APIPolymarket tick sizes run from 0.1 to 0.0001 and can change mid-market. How to read the active tick, catch changes and avoid rejected orders.APIOct 2, 2026→37Polymarket Price to Beat API (2026): How to Get the Start PricePolymarket publishes the price to beat for crypto Up or Down markets in the Gamma API, but minutes late. How to read it, and how to track it live.APIOct 2, 2026→38Kalshi Incentive Program (2026): Liquidity Rewards and the APIKalshi pays resting liquidity from pools of $1 to $1,000 per market per day. How the scoring works and how to pull every program from the API.APIOct 2, 2026→39Kalshi Demo API (2026): Keys, URL and EndpointsThe Kalshi demo API mirrors production with mock funds and separate keys. The demo URLs, how to get a demo key, and what changes when you go live.APIOct 2, 2026→40Polymarket US API (2026): Keys, Endpoints and Rate LimitsThe Polymarket US API pairs a no-key public gateway for market data with a signed API for trading, limited to 25 requests a second.APIOct 2, 2026→41Polymarket Redeem API (2026): How to Redeem Winning PositionsRedeem Polymarket winnings with one SDK call or a gasless relayer transaction, plus the checks that fix most failed redemptions.APIOct 2, 2026→42Polymarket Contract Addresses (2026): CTF, Exchange and pUSDEvery Polymarket contract address on Polygon, from the CTF Exchange and Neg Risk exchange to pUSD and the collateral adapters, and when to use each.APIOct 2, 2026→43Kalshi MCP Server (2026): Connect Claude to Kalshi MarketsKalshi's own MCP server searches its docs. To give Claude live Kalshi markets, order books and trading, connect Predictefy's MCP server in one line.APIOct 2, 2026→44Polymarket Relayer API (2026): Gasless Transactions ExplainedPolymarket's relayer submits signed wallet transactions with no gas, using builder or relayer keys. Predictefy returns unsigned steps you sign.APISep 27, 2026→45Kalshi Weather Bot (2026): How to Build One With the APIKalshi weather bots price KXHIGHNY brackets from forecasts, and the markets settle on The Weather Company data. Test yours on Predictefy paper trading.APISep 27, 2026→46Kalshi RFQ API (2026): Request for Quote and Block TradesKalshi's RFQ API gets private maker quotes on a market and size, then accept and confirm. Predictefy prices the same outcome across 15+ venues.APISep 27, 2026→47Polymarket Paper Trading (2026): How to Practice for FreePolymarket's docs offer no demo account. Predictefy paper trading fills simulated orders against Polymarket's live order books, free on every plan.APISep 26, 2026→48Polymarket Leaderboard API (2026): How to Pull Top TradersPolymarket ranks traders through GET /v2/leaderboard by PnL or volume. Predictefy adds leaderboards across four venues and a smart-money feed.APISep 26, 2026→49Polymarket CLOB API (2026): Keys, Endpoints and Rate LimitsPolymarket's CLOB API serves order books publicly and takes orders with L1 and L2 signed keys. Predictefy reads it with 15+ venues on one key.APISep 26, 2026→50Kalshi SDK (2026): Which One to Install and WhyKalshi's official SDKs are kalshi_python_sync, kalshi_python_async and kalshi-typescript. Predictefy's SDK adds 15+ venues through one client.APISep 26, 2026→51Kalshi Paper Trading (2026): Demo Account vs Real Order BooksKalshi's demo uses mock funds on a separate exchange. Predictefy paper trading fills against Kalshi's real order books, free on every plan.APISep 26, 2026→52How to Increase Your Polymarket Rate Limit (2026)Raising a Polymarket rate limit depends on the limiter: trading tiers rise with volume, Builder tiers by approval. Predictefy publishes limits up to 3,000 a minute.APISep 20, 2026→53How to Increase Your Kalshi Rate Limit (2026)Raise your Kalshi rate limit free with one call that upgrades Basic to Advanced permanently. Predictefy publishes its own limits up to 3,000 requests a minute.APISep 20, 2026→54Polymarket Proxy Wallet: Find It and Use It via APIOn Polymarket the signing address and the funded wallet usually differ, which breaks most API integrations. Predictefy keeps signing in your own process.APISep 19, 2026→55How to Find a Polymarket Market ID and Condition IDA Polymarket market carries five identifiers that are not interchangeable, from the Gamma id to CLOB token ids. Predictefy gives each outcome one normalized id.APISep 19, 2026→56Polymarket Gamma API: Discovery Across 16 VenuesThe Gamma API is Polymarket's native catalog of events, markets and CLOB token ids. Predictefy normalizes market discovery across 16 venues with one method.APISep 19, 2026→57Polymarket API Keys Explained: Reads, Trading and AuthYou need no Polymarket API key for public reads; trading needs a wallet signature and CLOB credentials. One Predictefy key reads Polymarket and 15 more venues.APISep 19, 2026→58Polymarket API Rate Limits: Gamma, CLOB, and DataPolymarket publishes every endpoint's rate limit, from 1,500 per 10 seconds on CLOB books to 300 on Gamma markets. Predictefy publishes limits up to 3,000 a minute.APISep 19, 2026→59Polymarket Data API: Trades, Positions and Wallet ActivityPolymarket's Data API v2 serves public wallet trades, positions and activity with cursor pagination. Predictefy adds a normalized trade tape and wallet intelligence.APISep 19, 2026→60Kalshi Order Book API: Depth in TypeScript and PythonKalshi's order book returns YES and NO bid ladders with no explicit asks. Predictefy converts them into a normalized book with bids and asks in TypeScript or Python.APISep 19, 2026→61Kalshi FIX API: Access, Specs, and Who QualifiesKalshi's FIX gateway runs six session types on two hosts, reusing your REST API key pair. Predictefy adds one normalized API across Kalshi and 15 more venues.APISep 19, 2026→62Prediction Market Arbitrage SDK: TypeScript QuickstartInstall the Predictefy SDK and call client.router.fetchArbitrage to price arbitrage across 16 venues in TypeScript, with typed errors and normalized responses.APISep 17, 2026→63How to Use a Prediction Market Arbitrage API Across Multiple VenuesUse an arbitrage API across venues by separating discovery, matching and live-ask assessment. Predictefy runs every step for 16 venues behind one API.APISep 17, 2026→64Best Institutional Prediction Market API (2026)Predictefy is the best institutional prediction market API of 2026, with normalized data, matching, assessed arbitrage and guarded execution across 16 venues.APISep 17, 2026→65How to Build an AI Prediction Market Arbitrage Agent With an API and SDKBuild an AI arbitrage agent by keeping the money logic deterministic and the model's role narrow. Predictefy's API and SDK supply matched markets and assessed books.APISep 17, 2026→66Polymarket Order Book API (2026): How to Get Live DepthPolymarket's order book API returns live depth per CLOB token id, with no auth needed to read. Predictefy returns normalized books for Polymarket and 15 more venues.APISep 16, 2026→67Kalshi API vs Polymarket API: Which Should You Build On?Build on Kalshi or Polymarket directly for a single-venue product. For anything comparing both, Predictefy is the better foundation, normalizing 16 venues.APISep 16, 2026→68Polymarket API Arbitrage: Building the ScannerA Polymarket arbitrage scanner pulls the catalog, matches events across venues, compares live asks and gates on fees and rules. Predictefy runs all four stages.APISep 15, 2026→69Limitless Exchange API (2026): Endpoints, Keys, LimitsThe Limitless API is open for reads and needs a scoped token plus an HMAC signature to trade. Predictefy serves Limitless and 15 more venues through one API.APISep 14, 2026→70Polymarket MCP Server: Connect Claude to Live Markets (2026)A Polymarket MCP server lets Claude fetch live markets itself. Predictefy's installs in one line and covers Polymarket plus 15 more venues through the same tools.APISep 11, 2026→71Polymarket WebSocket API: Limits, Ping and PythonPolymarket's public CLOB WebSocket streams after a two-field subscribe, with a PING every 10 seconds. Predictefy streams 16 venues over one connection.APISep 10, 2026→72Kalshi WebSocket API: Rate Limits, Orderbook and ExamplesThe Kalshi WebSocket API authenticates in the handshake and streams a snapshot, then deltas. Predictefy streams Kalshi and 15 more venues over one connection.APISep 10, 2026→73What is The Best Oddpool Alternative?Predictefy is the best Oddpool alternative, covering 16 venues behind one normalized schema with a free plan of 25,000 credits a month and live streaming.APISep 9, 2026→74Best Prediction Market Data API (2026)Predictefy is the best prediction market data API of 2026, normalizing 16 venues behind one schema with a free plan of 25,000 credits a month and live streaming.APISep 9, 2026→75How Do I Make My First Prediction Market API CallYour first prediction market API call is one authenticated GET. With Predictefy it takes a free key and returns normalized markets from any of 16 venues.APISep 5, 2026→76Is There One API for All Prediction MarketsNo official one exists, but Predictefy is the closest thing: one key, one schema and one base URL that read 16 prediction market venues.Prediction MarketsSep 3, 2026→77How to Build a Prediction Market Screener With an APIBuild a prediction market screener by pulling every market in one router call, then filtering on price, time and liquidity. Predictefy searches all 16 venues.Prediction MarketsAug 27, 2026→78Robinhood Prediction Markets API: What Exists in 2026Robinhood publishes no trading API for event contracts, which trade only in its app. Predictefy offers one API across 16 prediction market venues instead.Prediction MarketsAug 25, 2026→79How to Build Prediction Market Copy Trading With an APIBuild prediction market copy trading by watching the public trade tape and mirroring fills through an execution API. Predictefy provides both across its venues.Prediction MarketsAug 25, 2026→80SX Bet API (2026): Endpoints and AuthenticationThe SX Bet API is free and open for market data, with one header and an EIP-712 signature to trade. Predictefy serves SX Bet and 15 more venues in one API.Prediction MarketsAug 25, 2026→81Prediction Market MCP Servers and AI Agent Tools (2026)Predictefy's MCP server covers Polymarket, Kalshi and 14 more venues in one install, where Polymarket and Kalshi ship no official MCP server of their own.APIAug 24, 2026→82How to Build Prediction Market Price Alerts With an APIBuild prediction market price alerts by polling order books or subscribing over WebSocket, then firing on a threshold. One Predictefy key alerts across 16 venues.APIAug 24, 2026→83How to Build a Prediction Market Telegram Bot With an APIA prediction market Telegram bot is two calls: stream order books from Predictefy and post to Telegram on a threshold. One key watches all 16 venues.APIAug 24, 2026→84How to Stream Live Prediction Market Prices With a WebSocket APIStream live prediction market prices over one Predictefy WebSocket: subscribe, get a snapshot, then an update on every tick across 16 venues on the free plan.APIAug 23, 2026→85How to Find Cross-Platform Arbitrage Opportunities Between Kalshi and PolymarketFind Kalshi and Polymarket arbitrage by matching contracts that settle the same way, then pricing both legs on live asks with fees. Predictefy does this for you.ArbitrageAug 21, 2026→86What Is Prediction Market ArbitragePrediction market arbitrage buys complementary outcomes when their combined cost is below the payout, like 42 plus 54 cents for $1. Predictefy finds the real ones.APIAug 20, 2026→87Best Prediction Market Arbitrage Strategy (2026)The most robust prediction market arbitrage strategy is size-aware: match equivalent markets and price both legs on live depth after fees. Predictefy automates it.APIAug 19, 2026→88Polymarket vs Kalshi Arbitrage Trading Bot: Complete Guide to Automated Prediction Market Arbitrage in 2026The simplest Polymarket and Kalshi arbitrage bot runs on Predictefy, which walks both live books at your size and passes only pairs that clear fees and rules.APIAug 19, 2026→89How to Programmatically Identify Arbitrage Opportunities on PolymarketThe fastest way to find Polymarket arbitrage in code is Predictefy's fetchArbitrage, which checks live books at your size and labels only real opportunities.Prediction MarketsAug 19, 2026→90How to Build a Prediction Market Arbitrage Bot (2026)Build a prediction market arbitrage bot on Predictefy's fetchArbitrage, which qualifies each cross-venue gap against live books at your trade size before you act.TutorialAug 18, 2026→91The Polymarket SDK in 2026: Which One to Install and WhyThe official Polymarket SDKs in 2026 are polymarket-client on PyPI and @polymarket/client on npm. Predictefy's SDK covers Polymarket and 15 more venues at once.APIAug 13, 2026→92How to Get a Kalshi API Key (2026)Get a Kalshi API key in your profile settings: Kalshi issues a key pair and a Key ID, and your code signs each request. One Predictefy key reads 16 venues.APIAug 11, 2026→93Kalshi API Rate Limits Explained (2026)Kalshi meters rate limits in tokens: Basic gives 200 read and 100 write tokens a second, about 20 reads and 10 orders. Predictefy publishes its limits per plan.APIAug 11, 2026→94How to Build a Kalshi Trading Bot (2026)A Kalshi trading bot reads prices over REST, decides, then signs orders with an API key. Predictefy lets the same bot read 16 venues and trade through one SDK.APIAug 7, 2026→95What Is a Prediction Market API? A Complete Beginner's GuideA prediction market API lets software read live odds, order books and history, and often trade. Predictefy is the multi-venue option, reading 16 venues from one key.Prediction MarketsAug 6, 2026→96Polymarket API: The Complete Guide for Developers (2026)The Polymarket API changed completely with the April 2026 CLOB V2 cutover, breaking old SDKs and tutorials. Predictefy normalizes Polymarket alongside 15 venues.APIAug 2, 2026→97Kalshi API: The Complete Guide for Developers (2026)The Kalshi API offers REST, WebSocket and FIX on a CFTC-regulated exchange, with fixed-point dollar pricing in 2026. Predictefy normalizes it alongside 15 venues.Prediction MarketsAug 2, 2026→98Risk-Free Arbitrage in Prediction Markets in 2026Prediction market arbitrage buys both sides of one event on two venues so the payout matches either way. Predictefy finds and checks these gaps across 16 venues.Prediction MarketsAug 2, 2026→997 Best Prediction Market APIs and SDKs in 2026Predictefy leads the best prediction market APIs and SDKs of 2026, normalizing 16 venues with matched markets and arbitrage that single-venue APIs lack.Prediction MarketsAug 1, 2026→