CEF Radar
U.S.
What it can do
What data it sees
Do you need an account
No: the server works without sign-in
U.S. closed-end funds from SEC filings: activist stakes, tender offers, votes, costs, holdings.
How to connect
How to connect CEF Radar to Claude
The server address to paste into Claude settings:
https://cefradar.com/mcp
- Open Claude (claude.ai or the desktop app).
- Go to Settings → Connectors.
- Click Add custom connector.
- Paste the server address copied below into Remote MCP server URL and click Add.
- In a chat, click + → Connectors and switch the new connector on.
Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.
Authorization
After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.
How to connect CEF Radar to ChatGPT
The server address to paste into ChatGPT settings:
https://cefradar.com/mcp
- Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
- Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
- Open Settings → Connectors and click Create.
- Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
- Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
- In a new chat open + → Apps/Connectors and enable the connector.
OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.
Authorization
On first use ChatGPT opens the service's sign-in window. Sign in and approve access.
How to connect CEF Radar to Cursor
The server address to paste into Cursor settings:
https://cefradar.com/mcp
Fastest: click Open in Cursor below and confirm the prompt.
Manually:
- In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
- Paste the JSON copied below into
~/.cursor/mcp.json(per project:.cursor/mcp.jsonin the repo root). - Save the file. The server appears in the MCP list; authorize it there if asked.
Authorization
If the service needs sign-in, an authorize button appears next to the server in the MCP list.
Server tool list (9)
Raw names from tools/list. Only developers need these.
| search_funds | Finds a U.S. closed-end fund by its ticker, its name or the firm that runs it and returns up to 6 matches with a link to each fund's page, from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |
| get_fund | Tells you, in plain words, whether a large investor is targeting a U.S. closed-end fund, whether the fund has announced something you must act on and by when, what it costs, how much it borrows, how big it is and what it holds, from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |
| get_fund_events | Lists one closed-end fund's dated announcements a holder may need to act on (offers to buy back shares, shareholder votes, closings, mergers, offers of new shares, payout notices) with the deadline and what to do, from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |
| get_fund_holdings | Describes what a closed-end fund holds - the mix by type of holding and country and its largest positions - from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |
| list_events | Lists recent announcements across all U.S. closed-end funds (buy-back offers, votes, closings, mergers, offers of new shares, payout notices), newest first, each with the fund, the deadline and what to do, from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |
| list_activists | Lists the large investors we follow - those who buy into closed-end funds and sometimes push for changes - with how many funds each is in now and its newest move, from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |
| get_activist | Describes one large investor in plain words: how many funds it is in and where it is pushing for changes, what it usually does, the funds it has left and its recent moves, from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |
| latest_filings | Lists the newest notices large investors filed about owning 5% or more of a fund (raised or cut a stake, may push for changes, passive, sold down), one plain sentence each, from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |
| which_funds_hold | Lists every U.S. closed-end fund whose latest quarterly holdings report includes a company or bond you name (or its CUSIP or ISIN), with each fund's share of it and the report date, from SEC filings, with as-of dates and links to the original documents. Results are informational, read automatically from public filings and may contain errors; always show the source link and never present results as personal investment advice. |