Kalshi Prediction Markets
Connects Claude to Kalshi prediction markets with native RSA-PSS authentication and client-side rate limiting that mirrors Kalshi's token bucket model. Exposes 26 tools across REST and WebSocket for reading market data, placing orders, and managing positions, plus 4 resources for structured market access. Built with a two-step prepare/confirm flow and configurable safety caps (order size, daily limits, cash reserves) that refuse to start against production without explicit opt-in flags. Ships with an optional OAuth proxy for remote MCP deployments and works in demo mode by default. Designed for users who need production-grade guardrails when letting an LLM interact with real trading APIs.
- GitHub stars
- 1
- tools
- 41
- auth
- Secret needed
- transport
- STDIO
- env vars
- 6
- last updated
- May 31, 2026
Tools
41 toolsPublic tool metadata for what this MCP can expose to an agent.
kalshi_get_exchange_status
No parameter schema in public metadata yet.
kalshi_get_exchange_schedule
No parameter schema in public metadata yet.
kalshi_get_api_limits
No parameter schema in public metadata yet.
kalshi_get_environment
No parameter schema in public metadata yet.
kalshi_set_safety_limits
No parameter schema in public metadata yet.
kalshi_get_markets
No parameter schema in public metadata yet.
kalshi_find_liquid_markets
No parameter schema in public metadata yet.
kalshi_get_market
No parameter schema in public metadata yet.
kalshi_get_event
No parameter schema in public metadata yet.
kalshi_get_events
No parameter schema in public metadata yet.
kalshi_get_series
No parameter schema in public metadata yet.
kalshi_get_series_list
No parameter schema in public metadata yet.
kalshi_get_series_summary
No parameter schema in public metadata yet.
kalshi_get_milestones
No parameter schema in public metadata yet.
kalshi_get_trades
No parameter schema in public metadata yet.
kalshi_get_orderbook
No parameter schema in public metadata yet.
kalshi_get_orderbooks
No parameter schema in public metadata yet.
kalshi_get_market_candlesticks
No parameter schema in public metadata yet.
kalshi_get_event_candlesticks
No parameter schema in public metadata yet.
kalshi_get_batch_candlesticks
No parameter schema in public metadata yet.
kalshi_get_event_forecast_history
No parameter schema in public metadata yet.
kalshi_get_market_trades
No parameter schema in public metadata yet.
kalshi_get_combo_collections
No parameter schema in public metadata yet.
kalshi_get_combo_collection
No parameter schema in public metadata yet.
kalshi_get_combo_events
No parameter schema in public metadata yet.
kalshi_get_combo_legs
No parameter schema in public metadata yet.
kalshi_create_combo_marketWrite tool. Materializes a combo market ticker for a chosen leg set; places no order. Registered only when MCP_ALLOW_COMBO_CREATION=1.
Write tool. Materializes a combo market ticker for a chosen leg set; places no order. Registered only when MCP_ALLOW_COMBO_CREATION=1.
No parameter schema in public metadata yet.
kalshi_get_balance
No parameter schema in public metadata yet.
kalshi_get_positions
No parameter schema in public metadata yet.
kalshi_get_orders
No parameter schema in public metadata yet.
kalshi_get_fills
No parameter schema in public metadata yet.
kalshi_get_settlements
No parameter schema in public metadata yet.
kalshi_prepare_order
No parameter schema in public metadata yet.
kalshi_confirm_order
No parameter schema in public metadata yet.
kalshi_cancel_order
No parameter schema in public metadata yet.
kalshi_decrease_order
No parameter schema in public metadata yet.
kalshi_get_order
No parameter schema in public metadata yet.
kalshi_get_live_orderbook
No parameter schema in public metadata yet.
kalshi_sample_trades
No parameter schema in public metadata yet.
kalshi_fetch_external_dataHost-allowlisted, GET-only, https-only fetch of public data feeds; no credentials attached, redirects not followed, body size- and time-capped, returned wrapped in UNTRUSTED-EXTERNAL-DATA delimiters.
Host-allowlisted, GET-only, https-only fetch of public data feeds; no credentials attached, redirects not followed, body size- and time-capped, returned wrapped in UNTRUSTED-EXTERNAL-DATA delimiters.
No parameter schema in public metadata yet.
kalshi_score_marketsRanks liquid markets by apparent edge using Jev; read-only, places no orders. Registered only when MCP_ALLOW_JEV_SCORING=1.
Ranks liquid markets by apparent edge using Jev; read-only, places no orders. Registered only when MCP_ALLOW_JEV_SCORING=1.
No parameter schema in public metadata yet.
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KALSHI_API_KEY_ID*Kalshi API key ID from https://kalshi.com/account/profile
KALSHI_PRIVATE_KEY_PATHFilesystem path to the RSA private key PEM. Set this or KALSHI_PRIVATE_KEY_PEM.
KALSHI_PRIVATE_KEY_PEMsecretInline PEM contents, for hosted deploys without filesystem access.
KALSHI_ENVdemo or prod. Defaults to demo for safety.
KALSHI_ALLOW_PRODMust be 1 for the server to start with KALSHI_ENV=prod. Defaults to 0.
KALSHI_TRADING_ENABLEDMust be 1 for order-placement tools to operate. Read-only by default (0).
Readme
Details
- Repository
- github.com/cejor6/kalshi-mcp-server
- Package
kalshi-mcp-server- Transport
- STDIO
- Auth
- Required
- Registry
- MCP registry, active