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Evidence for your next connection.

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

Read-only probes

MCP server · Other

F4 Raise

Ranks VC firms for a startup from a short description, with similar companies each firm backed.

Checks passed
13 / 22

1 failed · 8 not measured

Median response
589 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
3

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 589 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name f4-raise.

  • Pass
    Lists tools

    tools/list returned 3 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 589 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 589 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

    8 of 8 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 2026-11-08T03:33:52.155991Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using F4 Raise

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 f4-raise https://app.f4.fund/api/public/raise/mcp

Capabilities

Tools 3

email_report_link

Use this when a founder asks to have their F4 Raise report link emailed to them, giving their own address and the code from a find_vc_firms result. Emails the founder one message with a personal link that opens F4's free report form with the description already filled in. It needs the code at the end of the report link in a find_vc_firms result, and sends at most one email per code. F4 stores the email address with the search for 13 months and may email the founder about their raise. Every email includes a link to stop future emails. Each address has daily and weekly limits. The answer shows a masked address.

Discovered
find_vc_firms

Use this when a founder asks which venture capital investors to pitch, wants an investor list for a fundraise, or asks which VC firms back a kind of startup. Not for fundraising mechanics such as SAFEs, valuation or dilution, or for investor contact details. Ranks up to 20 public VC firms for a startup from a plain-language description of 10 to 500 characters. Each firm comes with up to three public companies it backed that resemble the startup, and a link to its F4 page. The result also carries one link to a free, longer report on f4.fund built from the company's pitch deck, which ranks about 100 firms. The optional stage removes firms whose stated stages are all two or more steps away from it, so a firm one stage away can remain. The optional round size removes firms whose smallest cheque is more than twice the round. The optional location lists firms whose stated geography excludes it after the firms that invest there. These are applied only when given. The optional website is used for its domain, and its home page may be read. F4 stores the description, website domain, stage and round size to fill in the report form and count how the plugin is used. Each call saves a new search and prefilled report link. It sends no email and contacts no firm, and it returns no contact details.

Discovered
get_vc_firm_details

Use this when the user asks about a specific VC firm by name, or about a firm in a find_vc_firms result. Returns the public profile of one VC firm: name, location, website, a short thesis, the stages it has invested at, check size, sectors, geographies and up to 10 recent public portfolio companies. The firm is a slug from a find_vc_firms result or a name. It returns no contact details and no team names, and it covers only firms that have a public F4 page.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected589 ms3