OpenInsider-MCP

Overview

The OpenInsider MCP server integrates 16 investment-research tools directly into MCP-compatible LLM clients such as Claude Desktop, Cursor, and VS Code. By tapping into public endpoints from OpenInsider, SEC EDGAR, FINRA, and Yahoo Finance, it enables automated retrieval of Form 4 insider transactions, 8-K material events, short interest metrics, and live quotes. Every response is cached in memory and structured as typed observations with zero opinionated scoring, ensuring the orchestrator LLM retains full reasoning control.

Capabilities

• ▸Search insider trades by ticker or CIK
• ▸Track live market-wide insider trade firehose
• ▸Find top insider buys, sells, and multi-insider cluster buys
• ▸Screen trades using multi-variable filters like role, transaction type, and value
• ▸Retrieve recent SEC 8-K material events and item codes
• ▸Check late filing notices (NT-10K/NT-10Q) and activist filings (Schedule 13D)
• ▸Fetch bi-monthly short interest snapshots and daily short volume
• ▸Access SEC failures-to-deliver data and Reg SHO threshold list status
• ▸Obtain live stock quotes with valuation and earnings calendar data

Best for

Querying recent Form 4 insider trades for a specific stock ticker during financial analysis sessions., Investigating market-wide cluster buys and top insider purchases over various time horizons., Checking recent SEC EDGAR corporate filings like 8-K material events, late-filing notices, and Schedule 13D activist filings., Analyzing short interest, daily short-sale flow, and failures-to-deliver for short squeeze research., Pulling real-time stock quotes including price, valuation metrics, and dividend information.

Works with

Security considerations

The server scrapes public data sources and accesses public SEC, FINRA, and Yahoo Finance APIs. It identifies itself via a configurable User-Agent header and implements local in-memory caching to respect rate limits.

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