Best API Access Prediction Markets (2026)

outcometick

outcometick sells historical tick data for the crypto Up/Down markets on Polymarket (BTC, ETH, SOL, XRP, DOGE, BNB, HYPE) and Predict.fun (BTC, ETH, BNB), archived since June 2026. It carries the Chainlink streams these markets settle on (with the TWAP streams on Polymarket), plus order books, Polymarket trade prints and each market's strike and outcome, so results can be recomputed. Files are checksummed, downloaded by API. A hosted sandbox runs Python or Node.js strategies on the same data.

PMWallets

PMWallets is a Polymarket smart-money leaderboard built from its own ledger of the Polygon chain. Wallets that trade as one are scored as one trader; win rates come with a 95% confidence interval, profit is shown without the single best market, and published records are never rewritten. Follow any trader and get every fill over WebSocket or signed webhook in about a second, from $0.01 per wallet per hour. API, MIT SDKs, an open-source copy-trading bot and a browser extension.

Live dashboard of what Kalshi's top-earning, ID-verified traders hold and trade, ranked by lifetime profit. Track whales in trending markets, browse top earners' trades in the trade explorer, get alerts when top traders enter a market, and review every settled win. The free ranking at kalshispy.com/top-kalshi-traders updates hourly; names and profits are verifiable on kalshi.com. An MCP server and OpenAPI let ChatGPT, Claude and Cursor answer with the same live data.

Historical Polymarket order book snapshots, trades and resolutions via REST, WebSocket and MCP for backtesting, trading bots and AI agents.

0xinsider

Polymarket analytics for sports and esports in real-time. 0xinsider grades every tracked Polymarket wallet S to F on its settled P&L, shows which side the profitable wallets hold on every game, lists large trades with the grade of the wallet behind each one, and publishes a daily pick on a public record, win or lose. The same data is available through a REST API and a read-only remote MCP server with 33 tools.

Kairos

Kairos is the professional trading terminal for prediction markets. One book across Kalshi, Polymarket and Predict.fun, with real-time data, global best bid and best ask, professional order types and low-latency execution. The API also serves Hyperliquid HIP-4 market data.

Scanverity

Scanverity provides read-only research on supported Polymarket contracts: written resolution rules, named sources, timestamped evidence and order-book context. The research workspace and Resolution API are separate offerings. API access is a limited, approval-required private beta; paid production use requires separate approval. No trade execution or guaranteed outcome.

Sonist

Sonist automates live mention-market trading on Kalshi and Polymarket. It brings markets from both exchanges into one interface and monitors live audio, subtitle feeds, or accessibility captions for configured words. When a word is said, Sonist applies your risk limits and sends the trade through your account, letting you use the lowest-latency source available for each event and guaranteeing profit.

Rivo is a prediction market terminal covering both Polymarket and Kalshi. Track large trades with the trader, market, side, size and entry price attached, see traders ranked on settled performance rather than self-reported numbers, and review resolved win/loss history. Backtest a rule against markets that already resolved, run it on paper, then execute it on Autopilot through your own connected account. Live autopilot runs on Kalshi via your own API key; Polymarket is research, alerts and paper trading for now. Non-custodial: funds stay at the venue. Includes a REST API and a remote MCP server.

wAiq

wAiq (formerly PolyWin) is a non-custodial Telegram bot for Polymarket. It runs copy trading and counter-trading of any wallet, with sizing that can auto-match the leader own portfolio percentage rather than a flat dollar amount, plus take-profit, stop-loss and daily caps. Ai AutoSnipe runs two automated strategies — Final Snipe, and Reversal limit-order ladders — on BTC, ETH, SOL, XRP, DOGE, BNB and HYPE across 5m, 15m, 1h and 4h, using presets validated against historical data and rechecked daily. When no setting for a market tests profitable, the bot shows no preset rather than a losing one. Ai Picks reads more than 20 million on-chain fills to rank 120,000+ traders every 6 hours, removes farmers and hedgers, and publishes its scoring method. Also included: backtests, price alerts, watchlists, limit orders, partial sells, CSV ledger export, and up to 5 wallets with 2FA on withdrawals and key exports. Keys are encrypted per wallet and exportable; no KYC, and a seed phrase is never requested. Deposits arrive from 13 chains including Bitcoin, Solana and Tron, auto-bridged to USDC on Polygon. Interface in English, Russian, Chinese and Spanish. Live since May 2026.

Live edge terminal for Kalshi and Polymarket. Scans thousands of markets continuously, models a fair value for each one, and ranks the mispriced ones by expected value with quarter-Kelly position sizing. Before a cross-venue pair is labelled arbitrage, an automated verifier confirms both legs resolve on identical criteria; genuinely ambiguous pairs are withheld rather than shown as risk-free. Opportunities are priced off live ask prices using each venue's exact fee curve rather than midpoints, and ranked by annualised return instead of raw spread. The scanner, the analyzer, the trade journal and the smart-money whale feed are free with no card. Pro ($12.99/mo) adds the cross-venue arbitrage feed, alerts within minutes and unlimited watchlists. A separate data API runs from free to 1,000,000 requests a month, with Python and JavaScript SDKs, WebSocket streaming and an MCP server. Read-only by design: it cannot place trades or move funds. Not financial advice.

Polyman

Polyman is a prediction markets platform built on Polymarket — instant copy trading of the top traders, live sports markets, card and Apple Pay deposits, limit orders, up/down crypto markets, paper mode with a virtual balance, parlays, whale alerts, and a public agent API with an MCP server. Web plus Telegram Mini App.

Edge Market

EdgeMarket is a real-time intelligence platform for prediction markets and crypto. Track Polymarket order flow, whale positioning and market structure, monitor smart-money activity, receive live alerts, and access measured market signals, sentiment data and research tools from one dashboard.

Polyrama is a real-time prediction-market terminal for Polymarket and Kalshi. It combines live odds, cross-venue market search, public-wallet analytics, trader leaderboards, whale and mispricing signals, dashboard state, historical backtests, REST API access, and an open-source MCP server for AI agents. The MCP exposes research and paper-trading tools only; it does not place live orders.

EdgeMarket

EdgeMarket is live at https://edgemarket.co. It covers Polymarket and crypto perps (Binance, Bybit, OKX, Hyperliquid) in one product. The public register publishes every Oracle call on BTC/ETH/SOL/XRP with the outcome — including misses — and names the confirmation step (T+180s on a 5-minute slot). Operators are ranked by measured alpha, not displayed P&L. Structure screens show funding, open interest and liquidations, sampled every 60s. Observer is free; Operator $39/mo (signals at emission, Telegram, pulse); Principal $79/mo (chart read, L2 true cost, API after 90 days of register).

Prediction Bubbles

The busiest open Polymarket and Kalshi markets on one live bubble board, sized by volume and colored by probability, with a free embeddable widget and no signup.

A remote Model Context Protocol (MCP) server that gives Claude, ChatGPT, Cursor and any MCP-compatible agent 23 prediction-market quant tools over Streamable HTTP. No install, and no API key for the free surface. Endpoint: https://predictionmarketspicks.com/api/mcp/mcp 16 tools are callable with no key — EV, Kelly sizing, probability conversion, Bayesian updating, base-rate gap, combo edge, plus eight fantasy-football draft tools. Two more (cross-venue arbitrage detection and a six-category market pulse) return capped results with no key and full depth with one. Five Pro tools cover NFL model edges and player props, options-implied commodity edge, the daily mispricing scan, and the live edge-alerts feed. Built by PredictionMarketsPicks. Listed on Smithery, Glama (Official), PulseMCP and the official MCP registry.

Independent analysis and quant tooling for Kalshi, Polymarket, DraftKings Predictions and FanDuel Predicts, published by the analyst collective The 7 Oracles. 25 quant tools on the site, most of them free: EV calculator, Kelly sizing, probability/odds conversion, Bayesian updater, base-rate scanner, a fully-free combo edge builder with a 7-tier verdict ladder, KL-divergence, a cross-platform Kalshi/Polymarket arbitrage scanner, a daily mispricing scan, commodity and metals edge signals driven by options-implied volatility, NFL power ratings and win probability, and a state-by-state legality map. The same engine is exposed to AI agents as a Model Context Protocol server — 23 tools callable from Claude, ChatGPT and Cursor, 16 of them with no API key. Coverage is numbers-first and calibrated: model-vs-market reads, a published graded track record on every signal feed, and explicit methodology on every tool. Prediction markets are treated as event derivatives rather than as a sportsbook — trader, position, contract. Free tier includes the newsletter, daily movers and email-gated tools. Pro is $14.99/mo or $150/yr.

Spectral Edge

Spectral Edge is a suite of trading signals built specifically for BTC prediction markets using physics-trained AI. SpectralBot reads every BTC 15-minute prediction market in real time and delivers a clear UP or DOWN signal every 5 seconds. Start with a free trial.

PolyOrderBooks

Historical Polymarket market data API for research and backtesting. Access archived L2 order books, price history, liquidity metrics, and market data through a REST API or Python SDK. Includes a free tier for getting started.

Solana native prediction markets. Bond curve trading so no seeded liquidity is required. Trade brand new Memecoins through to Majors, Sport & Politics etc.

Early-stage creator-first YES/NO prediction market on Base using native USDC. Eligible adults in permitted regions can trade sourced, time-bounded markets or create their own. Rules, UTC deadline, public resolution source, and the 2% trading fee are shown before signing. Full loss is possible.

PredictionHero

PredictionHero aggregates prediction markets across Polymarket, Kalshi, Limitless, Predict.Fun, and Opinion into a single consensus view — then explains it. See market-wide probabilities, the biggest moves of the day, where platforms disagree, and why probabilities are shifting. Not just odds comparison, but an alternative news and intelligence source.

Predmart

Trade on Polymarket with up to 5x leverage on your highest-conviction trades. PredMart is a margin account for prediction markets — borrow USDC against your shares, or earn yield by supplying liquidity to leverage traders.

Wingo tool

Predection bigg smll

GhostLeg

GhostLeg is a sports betting and prediction-market intelligence platform that centralized sportsbooks, Kalshi and Polymarket in one feed. We expose the underlying odds data, custom analytics, and derived signals (team streaks, predictions, line velocity, etc.) via an intelligence dashboard and Data API.

Auspex Terminal

Auspex Terminal is an advanced trading terminal for prediction market traders. Aggregates live data from all platforms into one interface. Surface arbitrage opportunities in real time, analyze probability charts with full technical overlays, track live positions across all your API supported accounts with advanced portfolio tracking/insight and much more. Built by traders, for traders.

Mesh

Mesh provides searchable transcripts, speaker profiles, topic taxonomy, and time-series analysis tools for prediction market-relevant events — earnings calls, political speeches, Fed proceedings, and more. Access everything through a REST API or MCP server for AI agent integration.

socialpredict

The open prediction market engine for everyone SocialPredict lets anyone – individuals, classrooms, companies, and even governments – tap into the power of prediction markets.

Struct

Real-time Polymarket API, webhooks, and AI automations for traders, agents, and developers.

Delphi Terminal

The Largest Aggregated Prediction Market Platform We currently own and operate the world's largest Level 1, Level 2, and Level 3 dataset across multiple exchanges.

Predexon

Unified API for Prediction Market Data and Trading Granular Historical Data, Smart Wallet Analytics, Cross Platform Market Matching, Trading APIs/SDK, Real Time Websockets