{"slug": "app-oddsrail-polymarket-kalshi-trading-app-oddsrail-polymarket-kalshi-trading-0", "title": "app.oddsrail/polymarket-kalshi-trading (app.oddsrail/polymarket-kalshi-trading@0.14.0)", "summary": "MCP Index screened app.oddsrail/polymarket-kalshi-trading v0.14.0, a cross-venue prediction market server for AI agents integrating Polymarket and Kalshi, and found no manipulation pattern in its description, though the deterministic conformance probe has not yet run. The server, published to the official MCP registry on 2026-09-07 and distributed as oddsrail on PyPI, declares 4 environment variables and is designed for use in Claude, Cursor, Gemini CLI, Cline, or Zed.", "body_md": "[← Index](/leaderboard)\n\n# app.oddsrail/polymarket-kalshi-trading\n\nCross-venue prediction markets for AI agents: Polymarket + Kalshi, costed and attributed\n\nThe current version, v0.14.0, was published to the official MCP registry on 2026-09-07. It is distributed as oddsrail on PyPI, filed under Other by this index, and declares 4 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; [the index's current counts](/stats) put this record in context.\n\n## Using app.oddsrail/polymarket-kalshi-trading in Claude, Cursor, Gemini CLI, Cline, or Zed?\n\nMCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and **HOLDs the call** when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use **Install this server** for that).\n\nRewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less\n\n```\nuv tool install mcpindex-gate && mcpindex-config-wire\n```\n\n[method](/methodology)\n\nSemantic screen found no manipulation pattern in the description. Conformance probe not yet run.\n\n`mcpindex.integrity.description` passINFO\nevidence“No malicious instructions”via static_description\n\n- - Semantic screen only - the deterministic conformance probe has not run on this server\n- - Confidence is reported but not yet calibrated (v1)\n- - Screen reads the tool description, not the live behavior\n- - advisory\n- - registry description only no input schema\n- - screen model 8b\n- - The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not\n\nSemantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.\n\nOwn this server? [Screen its description →](/screen)\n\n## That verdict was true at screening time (snapshot 2026-09-07).\n\nContracts can change after screening, with no version bump. The gate pins app.oddsrail/polymarket-kalshi-trading’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.\n\n[See your first HOLD in 2 minutes →](/guides/install-the-gate-first-hold)\n\nRelated: [how to trust an MCP server](/guides/how-to-trust-an-mcp-server) · [screen before install](/guides/screen-mcp-server-before-install) · [silent contract drift](/guides/mcp-silent-contract-drift)\n\nPeople vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.\n\n```\n[Independent trust record for app.oddsrail/polymarket-kalshi-trading](https://mcpindex.ai/server/app-oddsrail-polymarket-kalshi-trading) - screening verdict, registry provenance, and contract drift monitoring.\nIndependent trust record for app.oddsrail/polymarket-kalshi-trading - screening verdict, registry provenance, and contract drift monitoring.\n```\n\nA live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.\n\n```\n[](https://mcpindex.ai/server/app-oddsrail-polymarket-kalshi-trading)\n![\"mcpindex](\"https://mcpindex.ai/api/v1/badge/app-oddsrail-polymarket-kalshi-trading\")
\n```\n\n`ODDSRAIL_DRY_RUN`\n1 (default) simulates orders; 0 enables real trading\n\n`ODDSRAIL_BUILDER_CODE`\nbytes32 Polymarket builder code for on-chain attribution\n\n`POLYMARKET_PRIVATE_KEY`\noperator wallet key; only needed for real trading\n\n`POLYMARKET_WALLET_ADDRESS`\nproxy/deposit wallet address, if used\n\n[methodology](/methodology)\n\n[AgentRoamai.agentroam/agentroam](/server/ai-agentroam-agentroam)\n\nBuy travel eSIMs, gift cards and mobile top-ups with crypto — user confirms before any order.\n\n[Authoryzeai.authoryze/authoryze](/server/ai-authoryze-authoryze)\n\nGive your AI agent a spending limit: approval controls and single-use virtual cards.\n\n[app.odyssey365/mcp-serverapp.odyssey365/mcp-server](/server/app-odyssey365-mcp-server)\n\nOdyssey 앱의 할일·메모·프로젝트·타임라인을 MCP 클라이언트에서 관리", "url": "https://wpnews.pro/news/app-oddsrail-polymarket-kalshi-trading-app-oddsrail-polymarket-kalshi-trading-0", "canonical_source": "https://mcpindex.ai/server/app-oddsrail-polymarket-kalshi-trading", "published_at": "2026-09-07 15:50:30+00:00", "updated_at": "2026-09-07 16:25:44.067407+00:00", "lang": "en", "topics": ["ai-tools", "ai-agents", "ai-infrastructure"], "entities": ["MCP Index", "Polymarket", "Kalshi", "oddsrail", "Claude", "Cursor", "Gemini CLI", "Cline"], "alternates": {"html": "https://wpnews.pro/news/app-oddsrail-polymarket-kalshi-trading-app-oddsrail-polymarket-kalshi-trading-0", "markdown": "https://wpnews.pro/news/app-oddsrail-polymarket-kalshi-trading-app-oddsrail-polymarket-kalshi-trading-0.md", "text": "https://wpnews.pro/news/app-oddsrail-polymarket-kalshi-trading-app-oddsrail-polymarket-kalshi-trading-0.txt", "jsonld": "https://wpnews.pro/news/app-oddsrail-polymarket-kalshi-trading-app-oddsrail-polymarket-kalshi-trading-0.jsonld"}}