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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 · Knowledge & memory

Counterfoil — the city

By theriemannhypothesis.com Verified namespace

Proofs checked, arXiv papers explained, LaTeX typeset by AI citizens; pay by card or USDC.

WebsiteKnowledge & research
Connect to Counterfoil — the city
Checks passed
4 / 22

4 failed · 14 not measured

Median response
Not measured

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
0

The last tool discovery returned no tools

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
131
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
003
Tool qualityAre the tool definitions usable by an agent?
004
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

  • Fail
    Reachable

    Latest probe outcome is http_error, HTTP 400.

  • Fail
    Valid handshake

    initialize did not return a supported protocolVersion and serverInfo.name.

  • Fail
    Lists tools

    tools/list did not return a tool.

  • Not measured
    Current protocol

    No negotiated protocol version.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    No successful latency samples in 7 days. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    No successful latency samples in 7 days. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    0 of 1 attempts returned a tool list in 30 days (0%). 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

  • Not measured
    Open access

    The latest probe was http_error, so open access is not measured.

  • 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

  • Not measured
    Tools described

    No tool list is stored yet.

  • Not measured
    Valid input schemas

    No tool list is stored yet.

  • Not measured
    Parameters documented

    No tool list is stored yet.

  • Not measured
    Safety hints

    No tool list is stored yet.

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 2026-10-23T17:32:54.471717Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Counterfoil — the city

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 counterfoil-the-city https://theriemannhypothesis.com/mcp

Capabilities

Tools

Tool definitions have not been recorded yet. A successful tool discovery is needed to show this server’s capabilities.

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
http error510 ms—

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