HYRR

Radio-isotope production, activity and dose for charged-particle beams on stacked targets

What does this entry provide?

HYRR is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 78/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding HYRR to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 78/100
Install method: pypi
Repo: exoma-ch/hyrr
Repo updated: Sep 28, 2026

Install command

uvx hyrr-mcp==0.22.0

Install method: pypi

Review the upstream source before running this command.

GitHub project Homepage

Quality

Repo stars

Repo updated

Sep 28, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.
Documentation (10) and description quality (10): parsed manifest or SKILL.md frontmatter, and a real description rather than a placeholder.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-09-28T19:40:08.022734Z",
      "publishedAt": "2026-09-28T19:40:08.022734Z",
      "statusChangedAt": "2026-09-28T19:40:08.022734Z"
    }
  },
  "server": {
    "name": "io.github.exoma-ch/hyrr",
    "icons": [
      {
        "src": "https://exoma-ch.github.io/hyrr/hyrr-icon-192.png",
        "sizes": [
          "192x192"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "HYRR",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.22.0",
    "packages": [
      {
        "version": "0.22.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "hyrr-mcp",
        "runtimeHint": "uvx",
        "registryType": "pypi",
        "registryBaseUrl": "https://pypi.org",
        "environmentVariables": [
          {
            "name": "HYRR_DATA",
            "format": "filepath",
            "description": "nucl-parquet data directory. Unset: the matching data release is fetched once into ~/.hyrr/nucl-parquet"
          },
          {
            "name": "HYRR_LIBRARY",
            "format": "string",
            "description": "Nuclear data library id, e.g. tendl-2023-iso (default) or endfb-8.1"
          }
        ]
      }
    ],
    "repository": {
      "id": "1179986153",
      "url": "https://github.com/exoma-ch/hyrr",
      "source": "github",
      "subfolder": "py-mcp"
    },
    "websiteUrl": "https://exoma-ch.github.io/hyrr/",
    "description": "Radio-isotope production, activity and dose for charged-particle beams on stacked targets"
  }
}

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