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Starwell: World Data & Statistics MCP server

by starwell.dev·dev.starwell/world-data-statistics·v0.2.2
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Statistics from 28 agencies: FRED, Eurostat, ECB, World Bank, OECD. Cited values, computed answers.

B82/100grade B
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Starwell: World Data & Statistics tools (11, 2 write)

write = sends, deletes, buys or posts
  • answerFree

    The flagship: ask a natural-language question about the served official statistics. Returns a COMPUTED answer (real Python runs in a sandbox over the verified store, nothing is estimated by a model), the Plotly chart, the Python code, citations to the official tables, and a verification badge per series. CROSS-SOURCE: one question may join series from DIFFERENT agencies, e.g. unemployment from the US BLS, Statistics Canada and the UK ONS in a single call, for correlations, ratios, and like-for-like comparison. How many series one question may join is set by the caller's plan; asking for more returns a series_limit error naming that cap. Returns a refusal when no served series can answer. Takes 10-40 seconds. Requires a free API key (create at /account on the Starwell host; pass Authorization: Bearer dlk_... or set STARWELL_API_KEY on the starwell-mcp bridge). Keyless calls return key_required.

  • create_monitorwrite actionFree

    Create a monitor: when the store's refresh lands a new period or a revised value for the series, a series.updated webhook fires to your URL with the new value, verification status, and citation. Requires an API key (free with an account at /account); webhook must be https. Manage with list_monitors / delete_monitor.

  • deep_analysisFree

    The moat: a PLANNED multi-section report on a question. The engine designs 3-4 orthogonal analyses (trend, statistics, outliers, cross-series relationships), runs real Python for each in the sandbox over the verified store, and synthesizes one decision-ready report. Every number computed, every series cited and verification-badged. Sections can join series from DIFFERENT agencies in one report, up to the caller's plan width; over it, the call returns a series_limit error naming that cap. Slower than answer (60-180 seconds), so use it for "analyze", "break down", "give me a full picture" asks; use the answer tool for a single direct question. Requires a free API key (create at /account on the Starwell host; pass Authorization: Bearer dlk_... or set STARWELL_API_KEY on the starwell-mcp bridge). Keyless calls return key_required.

  • delete_monitorwrite actionFree
  • get_observationsFree

    Observation values for one series. Every value carries provenance (the exact source URL it came from, retrieval time, connector version) and the envelope carries the series verification status + citation. Defaults to the latest 60 points; use start/end (YYYY-MM-DD) or latest to control the window.

  • get_seriesFree

    Full metadata for one series: indicator, unit, frequency, geography, coverage, its VERIFICATION STATUS (passing/stale/failing/unverified from golden-value + freshness checks against the live source), recent check records, and the citation to the official table.

  • get_series_statsFree

    Latest value, previous, all-time min/max, mean, and change vs the previous period and vs a year ago — computed over the verified store, with the citation attached. The cheap way to answer "what is it now and how has it moved" without a full analysis run.

  • list_datasetsFree

    List the datasets (official releases/tables) available in one source, with coverage dates and links to the official table pages.

  • list_monitorsFree

    Monitors on your API key, with delivery health (last fired, failures, active).

  • list_sourcesFree

    List the official statistical sources served by this data layer (e.g. Statistics Canada, FRED), with dataset/series counts, cadence notes, and terms links. Start here to see what exists.

  • search_catalogFree

    Find series across ALL sources in one call: case-insensitive search over series ids, indicator names, geographies, and dataset titles (e.g. "unemployment canada", "10-year treasury", "CPI"). Returns candidate series with units, coverage, verification status, and license, plus datasetMatches from the wider dataset index — datasets whose series can be requested by source-native id and are fetched from the official source on first call. The fastest path from a question to the exact series id to fetch or pin in the answer tool.

Public scan report

scanner v0.1.9 · 2026-09-23 · same rubric, same numbers if you re-run it

1 high
  • Code scan2 source files scanned25/25
  • Live reliabilityremote reachable in 878ms20/20
  • Tool poisoning11 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 2 write-action tools with no auth3/15
  • Maintenancelast push 41 days ago12/15
  • Maintainer identitynamespace and repository owner differ; GitHub account older than a year; website matches verified namespace7/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

What the publisher says

From the Starwell: World Data & Statistics repository's README, as published. We do not edit it. Read it on GitHub

starwell-mcp

Starwell is the verified data layer for AI: official statistics from Statistics Canada, FRED, the U.S. Bureau of Labor Statistics, the World Bank, SEC EDGAR, the U.S. Treasury, the European Central Bank, the UK Office for National Statistics, INSEE (France), the Australian Bureau of Statistics, the OECD, Eurostat, INE (Spain), the Czech National Bank, ILOSTAT, Statistics Netherlands, the CDC, Statistics Sweden, Statistics Norway, Statistics Finland, Statistics Austria, the Department of Statistics Malaysia, the U.S. Bureau of Economic Analysis, the Central Statistics Office of Ireland, Statistics Denmark, Statistics Poland, Statistics Estonia, Statistics Iceland, and the U.S. Bureau of Transportation Statistics, served as MCP tools. Every observation carries provenance, every series carries a verification status backed by golden-value checks against the live source, and the answer tool returns computed results cited to the official table.

This package is a thin stdio bridge to the Starwell remote MCP server. The tool surface always matches the server, so new sources and tools appear without a package update.

Tools (12): searchcatalog, listsources, listdatasets, getseries, getseriesstats, getobservations, factorystatus, answer, deepanalysis, createmonitor, listmonitors, deletemonitor. Reads are open; answer, deepanalysis, and the monitor tools need a free API key (STARWELLAPI_KEY).

Install per client

Remote-capable clients can skip this package and add the URL directly: https://starwell.dev/api/starwell/mcp (Streamable HTTP).

Claude Code

claude mcp add --transport http starwell https://starwell.dev/api/starwell/mcp
# or via stdio:
claude mcp add starwell -- npx -y starwell-mcp

Claude Desktop / claude.ai

Settings, Connectors, Add custom connector, URL https://starwell.dev/api/starwell/mcp. On plans without remote connectors, use the desktop config:

{
  "mcpServers": {
    "starwell": { "command": "npx", "args": ["-y", "starwell-mcp"] }
  }
}

Cursor

.cursor/mcp.json:

{
  "mcpServers": {
    "starwell": { "command": "npx", "args": ["-y", "starwell-mcp"] }
  }
}

OpenAI Codex CLI

~/.codex/config.toml:

[mcp_servers.starwell]
command = "npx"
args = ["-y", "starwell-mcp"]

Gemini CLI

~/.gemini/settings.json:

{
  "mcpServers": {
    "starwell": { "httpUrl": "https://starwell.dev/api/starwell/mcp" }
  }
}

ChatGPT (developer mode)

Settings, Apps, enable developer mode, add connector with the remote URL above.

Configuration

  • STARWELLMCPURL: override the endpoint (staging, self-hosted).
  • STARWELLAPIKEY: Bearer key from https://starwell.dev/account (free). Data reads work without one; answer, deep_analysis, and monitors require it.

Data licensing

Only openly licensed official sources are served, each with its license and attribution in every response. The set covers U.S. federal statistical works (public domain), the Statistics Canada Open Licence, World Bank CC BY-4.0, and the respective open licences of the ECB, OECD, ONS, INSEE, and ABS. This product uses the FRED API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.

Docs: https://starwell.dev/docs

<!-- generated: scripts/sync-mcp-mirror.ts in the Starwell monorepo. Edit there, not here. --> This repository is the source of the starwell-mcp npm package. It is generated from Starwell's main repository, so pull requests here may be applied upstream by hand — but issues are read and very welcome.

Nothing above is checked by us. What we check is on the safety report.

Install directly

claude mcp add --transport http world-data-statistics https://starwell.dev/api/starwell/mcp
Add to Cursor

Starwell: World Data & Statistics: common questions

Is Starwell: World Data & Statistics MCP server safe?
Mostly: it is graded B (82/100). Read the Starwell: World Data & Statistics safety report
How do I install Starwell: World Data & Statistics?
It runs remotely at starwell.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Starwell: World Data & Statistics need an API key?
Yes. The registry entry asks for STARWELL_API_KEY.
Is Starwell: World Data & Statistics maintained?
The last commit was 42 days ago (2026-08-13). The latest release is v0.2.2.
Is Starwell: World Data & Statistics up?
100% of our last 21 checks got an answer. We check remote servers about four times a day.
What can I use instead of Starwell: World Data & Statistics?
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