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WeatherMCP serverFirst audited Nov 13, 2026

NASA Data

NASA data: near-Earth objects, space weather, and astronomy picturesThe vendor's description, from its MCP Registry listing.

Passed, with 2 warningsAudited Nov 13, 2026
  • Warning: The server only speaks the first MCP version (2024-11-05).
  • Warning: 3 of 3 tools do not say whether they can change things.

Nothing failed, but there is something to know or fix. 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 428 ms.
Sign-up?
None neededIt answered without any account or key.
Can it change things?
Doesn't sayIts tools do not say whether they only read, so treat them as able to change things.
Endpointhttps://nasa.memoryapi.org/mcp

Streamable HTTP · protocol 2024-11-05 · server version 1.0.0

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

  • Warning: 3 of 3 tools do not say whether they can change things.

    MCP lets a server label each tool as read-only or destructive, so clients can ask the user before risky calls. Unlabelled tools are treated as able to change things.

    • get_near_earth_objects
    • get_space_weather
    • get_apod

Tools

  • Passed: 3 tools listed.

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

Protocol

  • Warning: The server only speaks the first MCP version (2024-11-05).

    Newer versions (latest 2025-11-25) add tool safety labels, structured output and a safer authorization model.

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

  • Passed: Unknown requests are refused.

Connection

  • Passed: The server responds.

Tools (3)

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

  • get_near_earth_objectsGet Near Earth Objects (asteroids) from NASA NeoWs. Returns asteroid data including size, hazard status, closest approach distance and velocity.Doesn't say
  • get_space_weatherGet space weather events from NASA DONKI. Includes solar flares, coronal mass ejections (CME), and geomagnetic storms.Doesn't say
  • get_apodGet NASA Astronomy Picture of the Day. Returns image/video with title, explanation, and URLs.Doesn't say

Audit history

  1. Nov 13Warnings

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 200428 ms
initializedHTTP 20039 ms
tools/listHTTP 20096 ms
unknown-methodHTTP 20097 ms

Run this server, or disagree with the result?

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