A remote MCP server for finding and downloading catalogue items, previewing assets, looking up places, and viewing index statistics. MCP is a standard way for an AI assistant to call external tools.

It is for searching a catalogue, opening or downloading assets, geocoding places, and checking index information.

It lets an assistant use Umbra's catalogue and location services without those tools being built into the coding environment.

umbra — MCP server by reesehammer/umbra-py

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/reesehammer/umbra-py

Made for: Claude Code.

Or install umbra-sar, the plugin that ships this one along with the rest of its 1 skill, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/reesehammer/umbra-py/umbra-sar-umbra/github.svg)](https://agentmods.dev/mcp/reesehammer/umbra-py/umbra-sar-umbra)

Your own site

<a href="https://agentmods.dev/mcp/reesehammer/umbra-py/umbra-sar-umbra"><img src="https://agentmods.dev/badge/mcp/reesehammer/umbra-py/umbra-sar-umbra/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/mcp/reesehammer/umbra-py/umbra-sar-umbra"><img src="https://agentmods.dev/badge/mcp/reesehammer/umbra-py/umbra-sar-umbra.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

Socket warn 17 Oct 2026

How audits are shown

Origin original No closer match found in the catalogue.

Security

Grade A, and why

umbra scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

integrations/agent-plugin/umbra-sar/.mcp.json · 14 lines

What it actually says

{
  "umbra": {
    "type": "http",
    "url": "https://api.umbra-py.space/mcp",
    "enabled_tools": [
      "search_catalog",
      "get_item",
      "quicklook",
      "download_asset",
      "geocode_place",
      "index_stats"
    ]
  }
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

8d ago First seen · 14 lines scan A f55f4e822099

Subscribe to this mod's changes

umbra is an MCP server published in the GitHub repository reesehammer/umbra-py (0 stars, last pushed yesterday), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-17.

Research earth-observation sar

umbra

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

Other mcp servers, from other repositories

bhoonidhi-mcp

sar-train-mcp

scigantic-mcp

kanari-wildfires

rea

bls-mcp