Cloudless Sky MCP Server

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Local serverstdioPython

What is the Cloudless Sky MCP server?

Connect Cloudless Sky to Claude, Cursor or any other MCP client and it stops being a tab you switch to. . The cloudless sky mcp server is what makes that connection.

Installation

The server ships on npm as osmp-protocol, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Precision — crlibm-derived, correctly-rounded, audit-grade. For regulated industries (medical IEC 62304, aerospace DO-178C, nuclear IEC 61513), audit-grade
  • Two — tier corpus compression** — D:PACK applies OSMP encoding followed by lossless dictionary-based compression for at-rest storage. Two profiles
  • Macro — Purpose
  • MEDEVAC — Clinical MEDEVAC chain template — heart-rate threshold → casualty report → broadcast evacuation
  • Corpus — Source
  • ICD-10-CM — CMS FY2026
  • Model — JSON Compliance
  • GPT-4o — 85%
  • GPT-4o-mini — 88%
  • SDK — Install
  • TypeScript — npm install osmp-protocol
  • Rust — cargo add osmp

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • With 14 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Cloudless Sky.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Where it fits

Plenty of file and storage access servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Cloudless Sky's toolset — Precision, Two, Macro and 11 more — is a fair guide to whether it matches your workflow. It is maintained by octid-io; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Available tools

ToolWhat it does
Precisioncrlibm-derived, correctly-rounded, audit-grade. For regulated industries (medical IEC 62304, aerospace DO-178C, nuclear IEC 61513), audit-grade finance, cryptographic protocol-frame hash inputs. **Available under commerc
Twotier corpus compression** — D:PACK applies OSMP encoding followed by lossless dictionary-based compression for at-rest storage. Two profiles: D:PACK/LZMA (full-corpus) and D:PACK/BLK (zstd block-level, microcontroller ta
MacroPurpose
MEDEVACClinical MEDEVAC chain template — heart-rate threshold → casualty report → broadcast evacuation
CorpusSource
ICD-10-CMCMS FY2026
ModelJSON Compliance
GPT-4o85%
GPT-4o-mini88%
SDKInstall
TypeScriptnpm install osmp-protocol
Rustcargo add osmp
ComponentFunction
SALBridgeBoundary translation for non-OSMP peers; propagation by contact

How to install the Cloudless Sky MCP server

{
  "mcpServers": {
    "cloudless-sky": {
      "command": "npx",
      "args": ["-y", "osmp-protocol"]
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Example prompts to try

  • Use Cloudless Sky to Precision.
  • Use Cloudless Sky to Two.
  • Use Cloudless Sky to Macro.

Frequently asked questions

It connects Cloudless Sky to MCP-compatible AI assistants such as Claude and Cursor, exposing 14 tools (Precision, Two, Macro, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Cloudless Sky directly.