MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Other

CEF Radar

By cefradar.com Verified namespace

U.S. closed-end funds from SEC filings: activist stakes, tender offers, votes, costs, holdings.

Website
Connect to CEF Radar
Checks passed
13 / 22

1 failed · 8 not measured

Median response
220 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
9

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 220 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name cefradar.

  • Pass
    Lists tools

    tools/list returned 9 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 220 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 220 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    12 of 12 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-09-18T00:45:00.794533Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using CEF Radar

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http cef-radar https://cefradar.com/mcp

Capabilities

Tools 9

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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected220 ms9

Related servers

All alternatives

Same function and industry, ranked by checks passed then median latency.

  • Responded16 / 22 checks passed
    Catalyst evidence graph

    catalystproject.aiVerified

    Findings on what compounds and supplements do in the body, with evidence strength, quote and paper.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 699 ms · Last checked

  • Responded15 / 22 checks passed
    wcway

    wcway.comVerified

    Find the nearest public toilet worldwide. Read-only tools, no account, no API key.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 49 ms · Last checked

  • Responded15 / 22 checks passed
    Pick My Costume

    pickmycostume.comVerified

    Recommends Halloween costumes you can actually build, with step-by-step DIY build guides.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 57 ms · Last checked

  • Responded15 / 22 checks passed
    Routine Run: write a routine

    routinerun.comVerified

    Write a step-by-step routine and get a link that opens it in Routine Run on iPhone. No sign-in.

    OtherOther

    • Passed: Handshake
    • Passed: Tools listed
    • Passed: Updated recently

    Median latency 62 ms · Last checked

Explore alternatives to CEF Radar