PredMCP

Safe, read-only market data for AI trading agents.

44 MCP tools that cross Polymarket prediction markets, Hyperliquid perps, and HIP-4 native predictions. Plug your agent into live trading data — without ever giving it the ability to execute orders.

Live, hosted, free during early access: predmcp.com

Why read-only matters

The #1 worry when wiring an LLM to a trading venue is the same in every conversation: "and it can't actually trade, right?" PredMCP is built so that question has a single answer.

No execution endpoint. Zero order-placement code exists in this codebase. Not gated, not commented out — not implemented. There is nothing to enable.
No private keys touched. We use the public Hyperliquid Info API and Polymarket Gamma API. Your wallet, your seed phrase, your accounts — never seen, never asked for.
44 tools, all queries. Markets, orderbooks, funding rates, whale activity, signals. Every tool is a read. Your agent reasons about markets; you stay the only one who can act on them.

What's in the box

Public data (any free key)

Family	Tools
Polymarket	`get_markets` · `get_odds` · `get_orderbook` · `get_whale_positions` · `search_markets` · `get_movers` · `get_markets_near_resolution` · `get_volume_spikes` · `get_late_game_sports`
Hyperliquid perps	`get_funding_rates` · `get_open_interest` · `get_whale_trades` · `get_orderbook_depth` · `get_top_funding_rates` · `get_oi_near_cap` · `get_funding_momentum`
Macro & price	`get_price_summary` · `get_basic_macro` · `get_recent_news` · `get_simple_iv`

Intelligence (early access — free during the open phase)

Family	Tools
Cross-venue signals	`get_signals` · `get_market_context` · `get_pm_hl_divergences` · `get_hl_funding_pm_correlation` · `get_hip4_vs_pm_arb` · `get_whale_convergence`
Signal intelligence	`get_signal_backtest` · `get_conviction_score` · `get_funding_curve_anomaly` · `get_setup_quality` · `explain_signal`
Macro & flow	`get_macro_context` · `get_macro_liquidity` · `get_cex_outflows` · `get_upcoming_catalysts` · `get_news_correlation`
Agent-native UX	`get_portfolio_risk` · `get_options_iv` · `get_social_velocity` · `get_whale_label`

Each tool is one verb your agent can call. Self-documenting via MCP.

Examples

Iran — what prediction markets say right now:

"US x Iran peace deal by May 15"    → YES 20%  ($9M volume)
"US x Iran peace deal by May 31"    → YES 34%  ($16M volume, +4% today)
"Iranian regime falls before 2027"  → YES 15%  ($17M volume)
"US invades Iran before 2027"       → YES 21%  ($26M volume)

One get_market_context call.

BTC cross-platform signal:

HL perps:  $79,740  |  funding: neutral  |  OI: 31,100 BTC
HIP-4:     BTC > $81,041 by 6am tomorrow  →  YES 12%  (market says no)
Signal:    ✓ ALIGNED — perps neutral, prediction bearish

When these diverge, it's a signal. get_signals computes it.

24h movers:

"Will Bitcoin hit $150k by June 30?"   $5.8M traded in 24h
"US x Iran permanent peace deal"       $3.2M in 24h  (+4% move)
Athletics vs Phillies                  +55% price move

Use the hosted server (recommended)

Get a free API key (email, no credit card, 100 calls/day) at predmcp.com/signup, then drop into your claude_desktop_config.json:

{
  "mcpServers": {
    "predmcp": {
      "type": "http",
      "url": "https://predmcp.com/mcp",
      "headers": { "x-api-key": "YOUR_KEY" }
    }
  }
}

Also works with Cursor, Windsurf, Claude.ai (OAuth), and any MCP client that supports HTTP transport.

Ask your agent:

"What are prediction markets saying about Iran right now?"
"Is there a divergence between BTC perp traders and prediction markets?"
"What markets moved the most in the last 24 hours?"
"Are any whales active on both Hyperliquid and Polymarket for BTC right now?"

Early access

We're in an open early-access phase: all 44 tools, no gating, no credit card. The first 50 signups stay grandfathered for 90 days when paid plans launch.

Self-host

The public OSS core covers the read-only data layer (Polymarket + Hyperliquid wrappers, MCP server, signup/auth). The intelligence/private tools (signals, conviction scores, macro flow) live in a private side module — the hosted version exposes them, the OSS one doesn't.

git clone https://github.com/RavioleLabs/predmcp
cd predmcp
npm install
npm run build
IP_HASH_PEPPER="$(openssl rand -hex 32)" npm start

Server runs on http://localhost:3000/mcp. Public data sources require no upstream API keys.

Stack

TypeScript · Fastify · MCP SDK · SQLite (better-sqlite3) · Polymarket Gamma API · Hyperliquid Info API

License

MIT — Raviole Labs.