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WeatherMCP serverFirst audited Nov 13, 2026

DataSnack

Seven-day forecasts of real-world numbers, linked and graded daily; sign-in adds Excel exports.The vendor's description, from its MCP Registry listing.

Passed public checksAudited Nov 13, 2026

Every public check ran and passed. Public audit: we connect as an AI client would, list the tools and check what they say. We do not run them. How we audit

Does it work?
YesConnected in 322 ms.
Sign-up?
None neededIt answered without any account or key.
Can it change things?
YesSome tools say they can change things. Your AI client should ask you first.
Endpointhttps://datasnack.ai/mcp

Website Streamable HTTP · protocol 2025-11-25 · server version datasnack-business-20261112160907-c04ed02

What we checked, the evidence, and the tools it offers.

What we checked

Security

  • Passed: Connections are encrypted (HTTPS).

  • Passed: No hidden instructions found in tool text.

Safety labels

  • Note: 5 tools are labelled as able to change things.

    Expected for tools that send, write or buy. Your AI client should ask before calling them.

    • follow_model
    • unfollow_model
    • cover_market
    • export_model
    • start_checkout
  • Passed: Every tool says whether it only reads or can change things.

Tools

  • Passed: 21 tools listed.

  • Passed: Every tool describes its inputs with a valid schema.

Protocol

  • Passed: The MCP handshake works (Streamable HTTP).

  • Passed: Protocol version 2025-11-25 (latest).

  • Passed: Unknown requests are refused.

Connection

  • Passed: The server responds.

Tools (21)

As the server describes them. The labels are the server's own: it says whether each tool only reads or can change things.

  • search_modelsSearch DataSnack's public forecasting models of prediction-market questions. Each result gives the question, the market's number now (and which market it comes from), DataSnack's forecast for seven d…Read-only
  • get_modelRead one DataSnack model: the question, the market's number now, the model's forecast for seven days from now, how the model works, its sources and its graded record including misses.Read-only
  • worldDataSnack's World Machine: models of real-world numbers (fuel and food prices, freight, yields and mortgage rates, shipping, currencies, AI model ratings, company value), each predicting its number i…Read-only
  • head_to_headDataSnack's numbers beside big forecasters' published numbers for the same months, each made the day before theirs from public data, prediction markets and the news, and graded the same way. The equa…Read-only
  • world_scenarioSet one World Machine model's number in seven days and read the models that move through the links. These are the models' numbers under that assumption, not predictions that it will happen.Read-only
  • overnightWhat DataSnack's agents did last night: rounds run, model changes kept and rejected, the biggest miss, where DataSnack and the market differ most, and the scoreboard.Read-only
  • scoreboardHow DataSnack's models and agents did over the last 30 days: how far off the seven-day forecasts landed, how often they beat standing still, and how often the direction was right.Read-only
  • calibrationHow often prediction markets came true at each price, by days before they closed, from the markets DataSnack follows that have resolved.Read-only
  • get_reference_workbookA free DataSnack Excel workbook with working formulas: the tariffs → mortgage rates lab, a chain of five models fitted on public FRED data (import prices, producer prices, consumer prices, the 10-yea…Read-only
  • get_meThe signed-in reader's DataSnack account: handle, plan, and coverage used this month.Read-only
  • list_libraryThe models the signed-in reader follows and the markets they cover.Read-only
  • follow_modelFollow a model (or market) so its changes show in the reader's DataSnack Library and notices.Can change things
  • unfollow_modelStop following a model (or market).Can change things
  • list_noticesThe signed-in reader's DataSnack notices from the last 48 hours: changes to followed and covered models.Read-only
  • cover_statusWhether the signed-in reader can cover a market now (so DataSnack builds or keeps working its model every night) and, if not, why; with the reader's allowance and credits.Read-only
  • cover_marketCover a market for the signed-in reader: DataSnack builds a model for it (or keeps working the one it has) every night, and the reader can export it to Excel. Uses one of the month's coverages from t…Can change things
  • export_optionsWhether the signed-in reader can export a model to Excel now and, if not, why (they need to cover its market).Read-only
  • export_modelCreate an Excel workbook of a DataSnack model the signed-in reader covers, with the model's equations as working formulas, its inputs and its record, and return a download link. Waits up to 20 second…Can change things
  • get_exportThe status of an Excel export and, when it is ready, its download link.Read-only
  • list_exportsThe signed-in reader's recent Excel exports.Read-only
  • start_checkoutA Stripe checkout link for the signed-in reader to open in their browser and pay: DataSnack Plus monthly or yearly, or one market coverage. Nothing is charged by this tool.Can change things

Audit history

  1. Nov 13Passed

What we sent

Every request in this audit, with the answer and how long it took. We never send credentials and never call a tool.

RequestAnswerTime
initializeHTTP 200322 ms
initializedHTTP 202294 ms
tools/listHTTP 20094 ms
unknown-methodHTTP 20097 ms

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