Real-time data your agent can trade on.
670+ live capabilities — prediction markets, stocks, sports, news, and economic data — on one MCP endpoint.
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FAQ
What is Preference?
Preference is an MCP server that gives AI agents structured access to prediction markets and the real-world data that moves them. Agents connect once and can query Polymarket, Kalshi, Hyperliquid, and dFlow alongside 1,800+ data sources — satellite imagery, maritime and aviation tracking, weather, government filings, and news — through a single interface designed for agentic workflows.
What data and markets does it cover?
Markets: Polymarket, Kalshi, Hyperliquid, and dFlow — covering politics, sports, crypto, commodities, and event derivatives. World data: 1,800+ sources spanning satellite/earth observation, vessel and aircraft tracking, weather and climate, regulatory and government filings, news and media monitoring, and on-chain identity (KOL wallets, smart-money tracking, Ethos reputation). The point is co-location: the markets and the signals that price them live in the same query surface.
How do I connect it to my agent or client?
Add https://pref.trade/mcp to your MCP client. Autonomous agents that do not already have a key should register with POST https://pref.trade/v1/agents/register; the response shows a one-time pref_agent_* key. Signed-in humans configuring a client should create an account API key in onboarding or the portal. Configure the client with Authorization: Bearer <your key>, then call preference_account_status to verify the client is not anonymous. Once connected, use search_tools to discover available tools and call them directly — no separate SDK install or per-source authentication.
Is it read-only or can my agent trade?
Read-only by design for now. Preference is a data and reasoning layer, not an execution venue. Agents can search markets, pull positions, analyze KOL wallets, query world data, and run SQL over session artifacts — but order placement happens through the venue's own infrastructure or your trading stack. This separation keeps the surface auditable and removes a class of risks that come with letting an LLM hold trading keys. We will support agentic trading in the future with a secure agent-first solution.
What does it cost?
It’s free. Preference is in open beta with no payment required — connect your client, run queries, build agents on top of it. There are sensible per-account quotas to keep the service stable, but no card, no trial clock, and no feature gates. Paid tiers will come later for high-volume and commercial workloads; everything available today stays available.
What can I actually build with it?
Cross-venue arbitrage scanners between Polymarket and Kalshi. Smart-money mirroring strategies that track the top 100 wallets in real time. Event-driven trading agents that watch tanker traffic in the Strait of Hormuz and act on oil-linked markets. Backtesting pipelines over historical market data plus the world signals that moved each market. Custom research agents that produce analyst-grade memos with full source provenance.
How fresh is the data and where does it come from?
Market data is real-time from venue APIs & proprietary sources. World data freshness varies by source: satellite imagery and weather refresh on each provider's cadence (typically hourly to daily), maritime and aviation tracking is near-real-time, government filings appear as published. Every result preserves provenance — you can trace any data point back to its upstream source, which matters both for citation and for trusting what an agent acts on.