nasa-cmr.granules.search

SERVERApibase SOURCEapibase-mcp-client

Low RISK CLASS

Category Read

Parameters 70 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-whiteknightonhorse-apibase/nasa-cmr.granules.search.md

WHAT IT DOES

What nasa-cmr.granules.search does on Apibase

AI agents call nasa-cmr.granules.search to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`bbox`	string	—	Bounding box spatial filter as "west,south,east,north" decimal degrees (e.g. "-10.0,35.0,30.0,60.0" for Europe). Returns granules with spatial coverage intersec
`page_size`	integer	—	Number of granules to return per page (1–20, default 10).
`short_name`	string	—	Collection short name to search granules for (e.g. "MOD09GA", "GPM_3IMERGHHE"). Alternative to collection_concept_id for well-known datasets.
`temporal_end`	string	—	End of temporal filter in ISO 8601 UTC format (e.g. "2023-01-31T23:59:59Z"). Returns granules with data acquisition time overlapping this range.
`day_night_flag`	string	—	Filter granules by illumination condition during acquisition: "day" (daylight pass), "night" (nighttime pass), or "unspecified".
`temporal_start`	string	—	Start of temporal filter in ISO 8601 UTC format (e.g. "2023-01-01T00:00:00Z"). Returns granules with data acquisition time overlapping this range.
`collection_concept_id`	string	—	CMR concept ID of the parent collection to search granules within (e.g. "C2515837343-GES_DISC"). Obtain from nasa-cmr.datasets.search results. Provide this or s

Parameters from the server's own tool schema.

RISK

Why nasa-cmr.granules.search is rated Low

Queries NASA CMR database for scientific data metadata and file locations without modifying or executing operations.

From the tool's definition Search for individual data granules, filter, returns granule IDs, acquisition times, download URLs.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs nasa-cmr.granules.search safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For nasa-cmr.granules.search, this is the rule to start with:

nasa-cmr.granules.search Allowed

nasa-cmr.granules.search is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "nasa-cmr.granules.search": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Apibase, apply this rule, and every nasa-cmr.granules.search call is checked against it from then on.

FAQ

Questions about nasa-cmr.granules.search

What does the nasa-cmr.granules.search tool do? +

Search for individual data granules (files) within a NASA CMR collection. Filter by collection concept ID or short name (e.g. "MOD09GA"), temporal range, spatial bounding box, and day/night acquisition flag. Returns granule IDs, titles, acquisition times, cloud cover percentage, file size (MB), online access status, browse image availability, and direct download URLs. Granules are the individual science data files (HDF, NetCDF, GeoTIFF) that agents can download for analysis. Use nasa-cmr.datasets.search first to find the collection concept ID, then use this tool to locate specific files by time/area. Source: NASA CMR — US Gov public domain, no auth required. It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.

What parameters does nasa-cmr.granules.search accept? +

nasa-cmr.granules.search accepts 7 parameters: bbox, page_size, short_name, temporal_end, day_night_flag, temporal_start, collection_concept_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on nasa-cmr.granules.search? +

Register the Apibase MCP server in PolicyLayer and add a rule for nasa-cmr.granules.search: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Apibase. Nothing to install.

What risk level is nasa-cmr.granules.search? +

nasa-cmr.granules.search is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit nasa-cmr.granules.search? +

Yes. Add a rate_limit block to the nasa-cmr.granules.search rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block nasa-cmr.granules.search completely? +

Set action: deny in the PolicyLayer policy for nasa-cmr.granules.search. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides nasa-cmr.granules.search? +

nasa-cmr.granules.search is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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