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

Read-only probes

StackData

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io.stackdata/stackdata

stackdata.ioVerified

Official statistics, China censuses & yearbooks, and as-of customs tariffs with legal citations.

Knowledge & research

GovernmentIs StackData down?Alternatives

12 of 22 checks passed

  • Handshake
  • Tools listed
  • Updated recently

Responded

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

Connect to server
Median latency
507 ms
Uptime, 30 days
Not measured
Last checked

Measurement details

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 507 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-06-18, serverInfo.name stackdata.

  • Pass
    Lists tools

    tools/list returned 6 tools.

  • Pass
    Current protocol

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

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 507 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 507 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

    15 of 18 parameters have a description (83%). The bar is 80%.

  • Fail
    Safety hints

    6 tools set neither readOnlyHint nor 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 2026-08-28T23:50:00.573706Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Tools

  • get_series

    Fetch ONE series with every dimension named by you (no guessing or relaxing): dataset, ISO3 countries, an ISO period range and a member code for every dimension from get_structure. Returns status ok/empty/refused with each value's provenance, and the missing country-periods listed. A bad request is a named 400 error saying which field and what is allowed.

    Measured

  • get_structure

    The published structure of one dataset, free: its dimensions with every member code and label, frequencies, period coverage, the ISO3 countries it serves, and whether it is servable. Call this before get_series to learn the codes to send. Dataset ids come from search_datasets.

    Measured

  • get_table

    Fetch a STORED table whole, by dataset id (families cn-nbs-census and cn-nbs-yearbook): labelled rows × columns with original-language labels, English overlay, units, and provenance down to the source file. Ids look like 'cn-nbs-census:2010_a0101a'.

    Measured

  • resolve_data

    Ask a data question in English ('unemployment rate in Japan', 'compare GDP in Japan and Germany') — resolves to the best covering dataset and returns the observations, with coverage honesty (missing countries are reported, never papered over).

    Measured

  • search_datasets

    Search StackData's catalog of 50k+ official statistical datasets (SDMX/World Bank dataflows, China censuses and yearbooks, tariff schedules). Multilingual: an English query finds Chinese-titled tables. Returns dataset ids usable with the other tools.

    Measured

  • tariff_lookup

    As-of customs-tariff lookup: which measures/duty rates apply to a goods code in a jurisdiction (eu, us, uk, jp), optionally from an origin, on a date. Duty expressions are verbatim; every measure carries its legal citation. Not legal advice.

    Measured

Probe history

  • ok507 ms6 tools

Status and uptime

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The image links back to this page. It shows checks passed, or uptime, and the colour follows the latest status. Responses are cached for 5 to 15 minutes.

MCP Heartbeat badge

Markdown

[![MCP Heartbeat](https://mcpheartbeat.com/badge/io.stackdata/stackdata.svg)](https://mcpheartbeat.com/s/io.stackdata/stackdata)

HTML

<a href="https://mcpheartbeat.com/s/io.stackdata/stackdata"><img alt="MCP Heartbeat" src="https://mcpheartbeat.com/badge/io.stackdata/stackdata.svg"></a>

Uptime markdown

[![MCP Heartbeat uptime](https://mcpheartbeat.com/badge/io.stackdata/stackdata.svg?kind=uptime)](https://mcpheartbeat.com/s/io.stackdata/stackdata)

Served from https://mcpheartbeat.com.

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Connect to this server

Claude Code

claude mcp add --transport http stackdata https://api.stackdata.io/mcp

Cursor .cursor/mcp.json

{
  "mcpServers": {
    "stackdata": {
      "url": "https://api.stackdata.io/mcp"
    }
  }
}

VS Code .vscode/mcp.json

{
  "servers": {
    "stackdata": {
      "type": "http",
      "url": "https://api.stackdata.io/mcp"
    }
  }
}