Use Insidewell MCP with Gemini CLI

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

Remote MCP server (Streamable HTTP), nothing to install. Free: 100 free/day · Paid: Keys $19/mo

Set it up

Run the command, or add the server to settings.json under "mcpServers".
Start Gemini CLI and run /mcp to list the server and its tools.
Ask a question the tools can answer.

Run:

gemini mcp add --transport http insidewell-api 'https://insidewell-api.cybermaxtools.com/mcp?via=use-with-gemini-cli'

Or add it to settings.json yourself::

{
  "mcpServers": {
    "insidewell-api": {
      "httpUrl": "https://insidewell-api.cybermaxtools.com/mcp?via=use-with-gemini-cli"
    }
  }
}

With a paid key:

gemini mcp add --transport http --header "x-api-key: YOUR_KEY" insidewell-api 'https://insidewell-api.cybermaxtools.com/mcp?via=use-with-gemini-cli'

Use the project file only if it is not committed with the key in it.

Where it goes:

~/.gemini/settings.json (user)
.gemini/settings.json (project, the default for the add command)

Config format checked 2026-10-09 against Gemini CLI's MCP documentation.

Tools you get

Endpoint checked 2026-10-09: https://insidewell-api.cybermaxtools.com/mcp answered an MCP initialize (protocol 2025-06-18) and tools/list with 3 tools, all marked read-only. No key was used and no tool was called.

Tool	What it does	Required inputs
`insider_trades`	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.	none
`cluster_buys`	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.	none
`data_status`	When Insidewell last pulled new Form 4 filings from EDGAR and which filed dates it covers.	none

Test the endpoint from a terminal

This lists the tools without a key and without calling any of them:

curl -s https://insidewell-api.cybermaxtools.com/mcp \
  -H 'content-type: application/json' \
  -H 'accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

If it does not work

Use "httpUrl" for Streamable HTTP; "url" is for the older SSE transport.
The docs note that for unpaid-tier and Google One users, Gemini CLI was replaced by Antigravity CLI on 18 June 2026.
The free tier has a daily limit (see the pricing line above); a paid key raises it.

Insidewell in other clients

Cursor VS Code (GitHub Copilot)Claude Code Claude Desktop and claude.ai Windsurf (Devin Desktop)Cline OpenAI Codex CLI

More MCP servers for Gemini CLI

All Insidewell setups · All Gemini CLI setups · All