Umbra open SAR archive (io.github.reesehammer/umbra-mcp@0.1.1)

Umbra open SAR archive, a server that enables search, quicklook, and measurement of Umbra's open SAR archive from any MCP client, was published as v0.1.1 to the official MCP registry on 2026-08-21, distributed as umbra-py on PyPI. The server declares four environment variables, including UMBRA_CANOPY_TOKEN for authenticated commercial archive access and ANTHROPIC_API_KEY/OPENAI_API_KEY for two opt-in model tools, while all other tools are deterministic. The mcpindex gate pins tool contracts to prevent silent drift, and the tool has not yet received a clearing verdict, so agents should treat it as not-yet-cleared.

← Index /leaderboard Umbra open SAR archive Search, quicklook and measure Umbra's open SAR archive from any MCP client. The current version, v0.1.1, was published to the official MCP registry on 2026-08-21. It is distributed as umbra-py on PyPI, filed under Search by this index, and declares 4 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts /stats put this record in context. Using Umbra open SAR archive in Claude, Cursor, Gemini CLI, Cline, or Zed? MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself use Install this server for that . Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less uv tool install mcpindex-gate && mcpindex-config-wire method /methodology Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands 15/150 labels to graduation . The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits /methodology . Own this server? Screen its description → /screen That verdict was true at screening time snapshot 2026-08-21 . Contracts can change after screening, with no version bump. The gate pins Umbra open SAR archive’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday. See your first HOLD in 2 minutes → /guides/install-the-gate-first-hold Related: how to trust an MCP server /guides/how-to-trust-an-mcp-server · screen before install /guides/screen-mcp-server-before-install · silent contract drift /guides/mcp-silent-contract-drift UMBRA CANOPY TOKEN Canopy API token. Set it and the same search tools query Umbra's authenticated commercial archive instead of the open bucket; leave it unset for the open data, which needs no credentials. UMBRA INDEX DB Path to a local catalog index built with 'umbra index build' or fetched with 'umbra index fetch' . Without one the server walks the public bucket per search, which is correct but slow. ANTHROPIC API KEY Enables the two opt-in model tools, describe scene and narrate change. Every other tool is deterministic and calls no model. OPENAI API KEY Alternative provider for the same two model tools, and the encoder behind find similar text. methodology /methodology YTDL RMCPai.dinglebear/rytdl /server/ai-dinglebear-rytdl yt-dlp search, download, metadata, delivery, and Plex workflows over MCP and CLI. Fodda Topic & Trend Researchai.fodda/topic-research /server/ai-fodda-topic-research Trend, stats & insight search across PSFK expert graphs with citable sources. io.github.ref-tools/ref-tools-mcpio.github.ref-tools/ref-tools-mcp /server/io-github-ref-tools-ref-tools-mcp Token efficient search for coding agents over public and private documentation.