Umbra open SAR archive

Name: Umbra open SAR archive
Author: reesehammer

MCP serverMCP

Search, preview, and measure Umbra open SAR from any MCP client. Umbra ships no search API.

by reesehammerrepository ↗homepage ↗v0.1.4

Is this yours?

This record is unclaimed

Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.

Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"umbra-open-sar-archive","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.

Claim this record

Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability20/20 checks ok

when	check	result	http	latency	detail
4 h ago	mcp initialize	ok	200	162 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
12 h ago	mcp initialize	ok	200	161 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
20 h ago	mcp initialize	ok	200	158 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
28 h ago	mcp initialize	ok	200	156 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
2 d ago	mcp initialize	ok	200	175 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
2 d ago	mcp initialize	ok	200	185 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
2 d ago	mcp initialize	ok	200	161 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
3 d ago	mcp initialize	ok	200	163 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
3 d ago	mcp initialize	ok	200	160 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools
3 d ago	mcp initialize	ok	200	180 ms	server umbra 0.1.4 · protocol 2025-06-18 · 19 tools

Tools observed via MCP handshake

search_catalog — Search Umbra's catalog and return compact context cards. Filters (all optional, combine freely): ``bbox`` as ``[min_lon, min_lat, max_lon, max_lat]`` i
find_repeat_sites — Rank the archive's most repeat-imaged sites — where change detection has something to measure. The discovery step *before* every analysis verb. ``chang
get_item — Return the full context card for one item. ``url`` is the JSON URL of an open-data STAC sidecar, a GEC/SICD (or other product) filename such as ``2025-
geocode_place — Resolve a free-text place name to a bounding box via Nominatim. Returns ``{"bbox": [min_lon, min_lat, max_lon, max_lat], "display_name": ...}`` so the
index_stats — Report on the local catalog index, if one has been built or fetched. Lets a long-running agent decide whether searches will be instant (index present)
quicklook — Return a scene's quicklook PNG as an image block. Prefers a baked catalog preview (``preview="auto"``, the default) so a public host can show the radar
change_composite — Composite 2-3 passes of one site into a change image. Pass the STAC URLs of two or three acquisitions of the *same* site in time order. Colors encode c
timescan — Summarize a whole time series into one activity image. Pass the STAC URLs of a site's passes; the timescan encodes per-pixel temporal statistics so bri
stack_stats — Measure how much a site changed across its passes, as numbers. The quantitative counterpart to ``change_composite`` / ``timescan``: those return a pict
stack_provenance — Check whether a site's passes are one measurement, before measuring them. ``stack_stats`` refuses a selection whose rasters were made by *different* ``
pick_change_interval — Scan a site's whole series and name the two passes worth narrating. The deterministic first half of the "watch a site over time" story, and the step th
download_asset — Download one asset of an item to local disk, gated by a size check. SAR products can be multiple GB, so this is a two-step handshake: call it first wit
watch_site — Report only the acquisitions **new** since the last check of this site. SAR's value for monitoring is its cadence, so the natural workflow is *standing
find_similar — Find archived scenes that **look like** the acquisition at ``url``. This is the one search that lives in the pixels, not the metadata: where ``search_c
find_similar_text — Find archived scenes matching a plain-language ``query`` over their imagery. Text-to-scene search: embeds ``query`` ("ships at a berth", "a flooded field")
describe_scene — Return a SAR-literate reading of the scene at ``url``. The picture and the metadata card are produced deterministically; a model only interprets them.
narrate_change — Return a grounded reading of *what changed* between passes. Sibling of :func:`describe_scene`. The composite and the per-block dB grid are produced det
stamp_description — Validate a client-produced scene reading and stamp provenance. This is the interpretation boundary for the no-key kit path: you read the picture ``desc
stamp_narration — Validate a client-produced change narration and stamp provenance. Sibling of :func:`stamp_description` for the no-key ``narrate_change`` kit. Pass the

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

Official MCP Registryio.github.reesehammer/umbra-mcp

first seen 2 mo ago · fetched 3 d agoopen ↗

PyPIumbra-py

first seen 2 mo ago · fetched 18 h agoopen ↗

Field history (12 recent events)

4 d ago · observed · packageFacts → {"name":"umbra-py","registry":"pypi","publishedAt":"2026-10-26T21:43:50.672985Z","latestVersion":"0.1.4"}
6 d ago · declared · version → "0.1.4"
16 d ago · observed · packageFacts → {"name":"umbra-py","registry":"pypi","publishedAt":"2026-10-16T03:01:56.773946Z","latestVersion":"0.1.3"}
16 d ago · declared · version → "0.1.3"
2 mo ago · declared · homepageUrl → "https://umbra-py.space/"
2 mo ago · observed · packageFacts → {"name":"umbra-py","registry":"pypi","publishedAt":"2026-09-02T19:43:50.916007Z","latestVersion":"0.1.2"}
2 mo ago · declared · summary → "Search, preview, and measure Umbra open SAR from any MCP client. Umbra ships no search API."
2 mo ago · declared · description → "Search, preview, and measure Umbra open SAR from any MCP client. Umbra ships no search API."
2 mo ago · declared · version → "0.1.2"
2 mo ago · declared · repoUrl → "https://github.com/reesehammer/umbra-py"
2 mo ago · declared · publisherName → "reesehammer"
2 mo ago · declared · protocols → ["mcp"]

Umbra open SAR archive

This record is unclaimed

Evidence

What the publisher says

Capabilities

Where this record came from