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Insidewell

by cybermax.cybermax-tools.workers.dev · remote · no sign-in to list tools · v1.1.2 · published by dev.workers.cybermax-tools.cybermax

Insider trading API + MCP: SEC Form 4 buys/sells, cluster buys. Keys $19/mo; 100 free/day.

Final · 1Changes · 1
CompareRegistry entry

3 tools: 1 do something that can't be undone, 1 change things and 1 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http insidewell-api https://insidewell-api.cybermaxtools.com/mcp?via=mcp-registry

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warninsider_trades

    The server marks "insider_trades" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

3 tools

Can't be undone 1Claude Code: ask
  • insider_tradesLatest insider transactions from SEC Form 4 filings (EDGAR, refreshed about once a minute), newest filed first, up to 100 rows: ticker, insider, role, code (P buy, S sale, ...), sh…1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "insider_trades" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Latest insider transactions from SEC Form 4 filings (EDGAR, refreshed about once a minute), newest filed first, up to 100 rows: ticker, insider, role, code (P buy, S sale, ...), shares, price, dollar value, dates and the filing link. Defaults to open-market buys and sales filed in the last 7 days.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true
    • destructiveHint: false
Changes things 1Claude Code: ask
  • cluster_buysCompanies where 2+ different insiders bought the stock on the open market within 7 days (window, minimum insiders and minimum dollars adjustable), with each insider, total dollars …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Companies where 2+ different insiders bought the stock on the open market within 7 days (window, minimum insiders and minimum dollars adjustable), with each insider, total dollars and filing links.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true
    • destructiveHint: false
Only reads 1Claude Code: allow
  • data_statusWhen Insidewell last pulled new Form 4 filings from EDGAR and which filed dates it covers.No findings

    Why it is in this group

    • The name "data_status" says "status": a word for reading.
    Description, as the server wrote it
    When Insidewell last pulled new Form 4 filings from EDGAR and which filed dates it covers.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
    • idempotentHint: true
    • destructiveHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.1.2. Values in angle brackets are yours to fill in.

claude mcp add --transport http insidewell-api https://insidewell-api.cybermaxtools.com/mcp?via=mcp-registry

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__insidewell-api__data_status"
    ],
    "ask": [
      "mcp__insidewell-api__insider_trades",
      "mcp__insidewell-api__cluster_buys"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as insidewell-api. Review it before you use it.