0xinsider MCP¶

Remote MCP server (Streamable HTTP, Bearer auth) + npm stdio client - real-time Polymarket analytics for sports and esports markets. Traders and analysts get S-F wallet grades from settled records, large-trade and whale flows, smart-money movement and insider-radar flags as typed agent tools, with a public OpenAPI contract covering 57 operations and a machine-readable developer index.

Server type: Remote (Streamable HTTP) + local stdio via npm
Auth: Bearer API key (discovery and health endpoints are public)
Endpoint: https://api.0xinsider.com/api/v1/mcp
OpenAPI: https://0xinsider.com/api/v1/openapi.json
npm: @0xinsider/mcp (global install, command: 0xinsider)
Tools: 33 read-only MCP tools (57 REST operations documented)
Category: Finance
Built by: 0xinsider (0xinsider.com)

Why This Matters for Operators¶

Prediction-market analytics have real operational uses: sentiment readouts for event-driven teams, research on market structure, and trader-level edge analysis. 0xinsider packages the raw Polymarket data into typed operations - listSharpMoneyFlows and listSmartMoneyFlows separate informed flow from noise, getWhaleTrade surfaces the trades that move a market, and getEventReplaySince gives durable replay for post-event review instead of a live-only stream. The MCP endpoint lets an agent drive all of it from one toolset.

Tools & Capabilities¶

Area	Operations
Markets	`exploreMarkets`, `getMarketSnapshot`, `getMarketCandles`, `getMarketIntel`, `batchGetMarketIntel`
Traders	`getTrader`, `getTraderContext`, `getTraderPnl`, `batchGetTraders`, `getTraderContextMarkdown`
Positions	`listPositions`, `listLargePositions`, `getPositionTimeline`, `getPositionTimelineById`
Flow	`getWhaleTrade`, `listSharpMoneyFlows`, `listSmartMoneyFlows`, `listLeaderboard`
Radar	`listInsiderRadar`, `getInsiderRadarFlag`, `listSportsEdgeObservations`
Reports	`getDailyReportSnapshot`, `getWeeklyReportSnapshot`, `getMonthlyReportSnapshot`, `getPickOfTheDay`, `getPickOfTheDayArchive`
Replay	`getEventReplaySince`, `getStream`

57 operations in the published OpenAPI contract; the MCP surface exposes the read-only subset (33 tools). Webhooks with signed delivery and an export pipeline (downloadTraderExport) extend the API for automation.

Installation¶

claude mcp add 0xinsider --transport http https://api.0xinsider.com/api/v1/mcp
npm install --global @0xinsider/mcp

Use the remote endpoint when the client can attach the key as a bearer Authorization header; use the npm package for a local stdio MCP client. Discovery and health endpoints are public, so getApiDiscovery works before any key exists.

Configuration¶

{
  "mcpServers": {
    "0xinsider": {
      "url": "https://api.0xinsider.com/api/v1/mcp"
    }
  }
}

Attach the key as the authorization header. Rate limits and error behavior are documented in the auth guide at 0xinsider.com/auth.md.

Business Relevance¶

Quant and event-driven desks get typed market, trader and flow data without building Polymarket scrapers.
Research teams use getEventReplaySince for post-event analysis of market reaction.
Sports media and data products pull pick-of-the-day archives and weekly report snapshots.
Compliance and risk teams use insider-radar flags as a review signal on trader activity.

Integration with CorpusIQ¶

0xinsider provides the external market-intelligence stream for operators whose business touches prediction markets; CorpusIQ holds their first-party business data. A CorpusIQ agent covering an event-driven vertical can combine 0xinsider market snapshots and sharp-money flows with the operator's own revenue and funnel metrics to correlate market sentiment with business outcomes in one report.

Limitations¶

New listing: no third-party track record and no public source repo for the server itself.
Bearer-key auth on the remote endpoint; no OAuth PKCE flow documented.
Sports and esports market focus - general news and politics markets are thinner.
Data is as fresh as the underlying Polymarket APIs; treat candles and snapshots as retrieved-time values.