Alternatives
Compare us to anyone.
58 side-by-side, verified.
Already using a prediction-market analytics tool, dashboard, or AI agent? Here is what SimpleFunctions adds on top of the same Kalshi + Polymarket feeds — a causal thesis system, autonomous trading, computed indicators across the live market universe, calibration scoring, CLI/API surfaces, and an MCP adapter for compatible hosts.
Comparisons
58
Categories
6
Listicle hubs
4
Live SimpleFunctions data
/calibration
Listicle hubs
By category — every major option ranked.
11 APIs
Prediction Market APIs
11 APIs ranked by venue, auth, pricing, agent compatibility.
10 providers
Data Providers
10 data providers across REST, WebSocket, SDK, SQL, CSV, Parquet.
9 servers
MCP Servers
9 MCP servers ranked by tool count, venue coverage, install path.
3 head-to-head
Neutral comparisons
Kalshi vs Polymarket, Polymarket vs Metaculus, markets vs polls — head-to-head.
On top of raw data
Five things you do not
get from a data terminal.
Causal thesis system
Decompose any thesis into a tree of testable sub-claims, inject news as signals, evaluate on a heartbeat.
POST /api/thesis/createAutonomous trading
Portfolio Autopilot — 1M-context LLM, 13 data sources, 7-gate risk cascade.
sf runtime startComputed indicators
Implied yield, cliff risk, liquidity availability, event overround — pre-computed across the indicator universe.
GET /api/public/screenMCP server
Live tool catalog. One-line install for Claude Code, Cursor, or any MCP client.
claude mcp add simplefunctionsCalibration baseline
Live Brier scores by venue, category, price bucket. Audit our own accuracy before trusting it.
GET /api/calibrationBrowse by category
All comparisons hourly-refreshedAI agents
LLM-powered trading and research agents on top of prediction markets.
SimpleFunctions vs Astron
AI agent protocol for prediction markets; flagship Raven 1.0 claims up to 98% short-term forecasting accuracy.
SimpleFunctions vs Bankr
Crypto AI agent with Polymarket integration plus an AI-assisted crypto wallet on X.
SimpleFunctions vs BetterAI
Multi-model AI prediction platform delivering real-time, explainable insights for Polymarket and Kalshi.
SimpleFunctions vs Fere AI
Multi-agent AI crypto assistant including Polymarket prediction market discovery.
SimpleFunctions vs Inside Edge
Identifies market inefficiencies on Polymarket with quantified edge percentages.
SimpleFunctions vs Jatevo
Deep-research platform powered by a 6-agent AI pipeline with Polymarket integration.
SimpleFunctions vs Octagon AI
AI deep-research platform with model-driven event forecasts.
SimpleFunctions vs Polybro
Autonomous AI Polymarket trading agent doing structured research across academic papers, news, and live data.
SimpleFunctions vs Polyfactual
AI-powered platform blending prediction markets with social-narrative truthfulness signals.
SimpleFunctions vs PolyOracle
Multi-LLM consensus system that analyzes Polymarket's most active markets.
SimpleFunctions vs Polyseer
Open-source multi-agent research platform for Polymarket and Kalshi using Bayesian aggregation.
SimpleFunctions vs Polytrader
AI-driven analysis, automated strategies, and social sentiment tracking for Polymarket.
SimpleFunctions vs Predly
Identifies mispricings on Polymarket and Kalshi by comparing market prices to AI-calculated probabilities.
SimpleFunctions vs Pricediction
AI-powered toolkit for deep research, automatic analysis, and direct trading on Kalshi and Polymarket.
Analytics & aggregators
Dashboards and unified APIs that surface Kalshi + Polymarket data.
SimpleFunctions vs Adjacent News
Forward-looking news platform with a unified API across 40,000+ prediction markets.
SimpleFunctions vs Dome
Developer infrastructure for prediction market data — acquired by Polymarket 2026-02-19, standalone API service in wind-down.
SimpleFunctions vs EventWaves
Polymarket analytics for finding high-edge markets via trader skill and momentum tracking.
SimpleFunctions vs FinFeedAPI
Mature normalized REST API across Polymarket, Kalshi, Manifold, and Myriad, built on CoinAPI enterprise infrastructure.
SimpleFunctions vs Hashdive
Polymarket and Kalshi analytics platform centered on its proprietary Smart Scores.
SimpleFunctions vs Marketlens
Tick-level Polymarket orderbook history and backtesting via a Python SDK; tiered Free / Pro $39/mo / Enterprise $199/mo.
SimpleFunctions vs Markium
Prediction markets data, wallet analytics, and watchlist alerts.
SimpleFunctions vs MobyScreener
Live feed tracking top Polymarket traders' buys and sells in real time.
SimpleFunctions vs Oddpool
Bloomberg for prediction markets — paid SaaS data terminal with WebSocket feeds and trader-level attribution.
SimpleFunctions vs Parsec
Real-time data analytics and insights for Polymarket.
SimpleFunctions vs Polyguana
Independent Polymarket analytics with leaderboards, market stats, and performance tracking.
SimpleFunctions vs PolymarketDash
Trader analytics and real-time monitoring for Polymarket with a smart-money focus.
SimpleFunctions vs PolyRouter
Single API for normalized prediction market data across Kalshi, Polymarket, Limitless.
SimpleFunctions vs PolyScope
Real-time Polymarket monitoring suite tracking trending markets and smart trader activity.
SimpleFunctions vs Polysights
AI-powered Polymarket analytics with 30+ custom metrics, news insights, and AI summaries.
SimpleFunctions vs Polysimplr
Polymarket interface with AI-powered chat and analysis aimed at making prediction markets accessible.
SimpleFunctions vs Prediedge
Real-time analytics and whale tracking for Polymarket and Kalshi.
SimpleFunctions vs Probalytics
REST + ClickHouse SQL + Parquet bulk export with 1ms orderbook resolution across Polymarket and Kalshi.
SimpleFunctions vs Sharpe Terminal
Professional prediction-market trading terminal in public beta; trader-focused UI similar to Verso.
SimpleFunctions vs TREMOR
Data terminal for Polymarket and Kalshi with SQL analytics and AI assistant across 140K+ active markets.
SimpleFunctions vs Verso
Bloomberg-style institutional prediction-market terminal for Polymarket and Kalshi, distributed via polymark.et.
SimpleFunctions vs Wandly
Prediction market analytics with filters and a calendar view for Polymarket and Kalshi.
Cross-venue terminals
Pro terminals that aggregate execution across multiple PM venues.
SimpleFunctions vs Converge
First aggregator and pro trading terminal across Polymarket, Kalshi, Limitless.
SimpleFunctions vs Matchr
Universal prediction-market aggregator searching 1,500+ markets across Polymarket, Kalshi, and others.
SimpleFunctions vs OkayBet
Prediction-market infrastructure with AI agents, market aggregation, and parlay betting.
SimpleFunctions vs Prediction Hunt
Cross-exchange comparison and arbitrage detection across Kalshi, Polymarket, PredictIt.
SimpleFunctions vs TradeFox
Prime-brokerage-style prediction-market aggregator backed by Alliance DAO and CMT Digital.
Forecasting platforms
Community or panel-based forecasting (Metaculus-style).
SimpleFunctions vs Futuur
Real-money and play-money prediction markets with multi-crypto deposit support.
SimpleFunctions vs Good Judgment
Superforecaster platform spun out of the Good Judgment Project (GJP).
SimpleFunctions vs Hypermind
Closed-panel champion-forecaster platform with a Forecasting Machine LLM ensemble.
SimpleFunctions vs Manifold Markets
Largest open play-money prediction market with a full public API and embeddable widgets.
SimpleFunctions vs Metaculus
Community forecasting platform with a research API and an AI Forecasting Bot Tournament.
News & journalism
Newsrooms and feeds that surface PM odds inline with reporting.
SimpleFunctions vs Boring News
Daily AI-powered news show using Polymarket odds as the foundation for unbiased delivery.
SimpleFunctions vs DeepNewz
AI-powered news app pairing personalized stories with real-time prediction-market odds.
SimpleFunctions vs Polynews
Real-time news platform that turns Polymarket odds into live headlines.
SimpleFunctions vs PROPHET
Expert-backed prediction newsletter covering politics, finance, and geopolitics.
SimpleFunctions vs The Oracle by Polymarket
Polymarket's in-house newsletter and podcast.
On-chain markets
Crypto-native PM protocols and L2 betting layers.
SimpleFunctions vs Azuro
EVM infrastructure for sportsbook + event-prediction front-ends with shared liquidity.
SimpleFunctions vs Drift BET
Solana perpetual-trading protocol's prediction-market sub-product.
SimpleFunctions vs Limitless
Base-L2 short-duration binary market protocol, settled by Pyth oracle.
SimpleFunctions vs Myriad Markets
Prediction market integrated with media properties (Decrypt, Rug Radio); $20M raise Feb 2026.
SimpleFunctions vs Opinion
AI-driven on-chain prediction-market protocol — reported ~31% of global PM volume by 2026-Q1; OPN token launched March 2026; Hack VC + Jump-led $20M raise.
SimpleFunctions vs Predict.fun
Prediction market on BNB Chain with official Python and TypeScript SDKs.
SimpleFunctions vs SX Bet
Peer-to-peer betting exchange on the SX Network Arbitrum rollup with sub-0.5% vig.
FAQ
Common questions about prediction-market alternatives.
What is the best alternative to Kalshi or Polymarket for AI agents?
For AI agents that need normalized cross-venue data plus thesis system plus calibration plus CLI/API-first agent surfaces, SimpleFunctions is the deepest agent-callable surface — it covers Kalshi + Polymarket today and ships the agent layer above raw prices. For maximum venue breadth across PredictIt + ProphetX + Opinion in addition to K + P, Prediction Hunt v2. For enterprise SLA-grade feed, FinFeedAPI. For HFT-grade tick orderbook + SQL, Probalytics. See /compare/prediction-market-apis for the full 11-API comparison.
How do you verify these comparisons?
Each comparison page is generated from a fact-reviewed candidate paragraph (see scripts/alternatives/candidates.ts) and validated through a structured-output schema. Public-fact claims about competitors are restricted to what their docs, websites, or public statements say. SimpleFunctions claims are computed live from /api/calibration, /api/public/cross-venue/pairs, and /api/public/markets — re-verifiable with curl. Verification dates are stamped on each page.
Is SimpleFunctions free?
Public CLI and REST/Data API reads are available on the free tier with rate limits; MCP is available as an adapter for compatible hosts. API keys and paid tiers unlock higher request and SF-token limits for authenticated thesis, intent, and Portfolio Autopilot workflows. Public datasets are CC-BY-4.0 on HuggingFace and Kaggle.
Which alternatives have MCP servers?
SimpleFunctions ships the largest first-party MCP catalog in this comparison. Several open-source MCPs exist for individual venues: JamesANZ/prediction-market-mcp (multi-venue), guangxiangdebizi/PolyMarket-MCP (Polymarket), Baozi MCP (Solana), TanmayDhobale/polymcp, berlinbra/polymarket-mcp, PolyVision MCP. Full comparison at /compare/prediction-market-mcp-servers.
What is the difference between an alternative and a comparison?
On this site, /alternatives/* is "SimpleFunctions vs X" — head-to-head where SimpleFunctions is one of the two products being compared. /compare/* is neutral X-vs-Y where SimpleFunctions may or may not be involved (e.g. /compare/kalshi-vs-polymarket has no SimpleFunctions). The /compare hub also contains listicle ranking pages where multiple products are compared side-by-side.
Why are some categories larger than others?
"AI agents" and "Analytics & aggregators" are the two largest categories because most prediction-market tools either (a) ship an LLM-powered trading or research agent, or (b) ship a normalized data feed across multiple venues. "Forecasting platforms" is smaller because the panel-forecasting space (Metaculus, Manifold, GJOpen) has fewer well-known products. "News" is small because few newsrooms publish PM odds inline with reporting. "On-chain markets" reflects the crypto-native venue list (Limitless, Azuro, Drift BET, Myriad, SX Bet, Opinion, Predict.fun).
How often is the alternatives list updated?
New entries are added when a notable PM tool launches or when SimpleFunctions's SERP research surfaces a missing competitor. The 2026-05 batch added Opinion (OPN protocol), Verso (Bloomberg-style terminal), FinFeedAPI, Probalytics, Predict.fun, Marketlens, Sharpe Terminal, and Octagon AI; the Dome row was updated to reflect Polymarket's 2026-02-19 acquisition. See git log on scripts/alternatives/candidates.ts for the full change history.
Start for free.
Public endpoints are available on the free tier and rate-limited for reliability. Authenticated endpoints — thesis system, intents, autopilot — follow the current tier limits. No credit card to start.