gtfs-scorecard

The scoring pipeline, command-line tool, and read-only MCP server behind GTFS Scorecard, which grades public GTFS Schedule feeds and turns validator notices into plain-language fixes.

What it does

• scorecard try <feed-url> scores one GTFS Schedule zip with the MobilityData validator (Java 17 or newer must be on PATH) and prints the grade, the category scores, and the top fixes.
• scorecard-mcp is a read-only Model Context Protocol server over stdio. Its tools read the published scorecards on gtfsscorecard.org: search tracked agencies, get a scorecard and its fixes, read a feed's grade history, and explain a validator finding. It needs no key and has no write surface.
• gtfs-scorecard is the same MCP server under the distribution's name, so uvx gtfs-scorecard starts it.

The Python import package is scorecard_pipeline. The distribution was named scorecard-pipeline until 1.5.1; PyPI refused that name as too similar to an existing project, and nothing was uploaded under it.

Install

Once gtfs-scorecard is on PyPI, these work:

uvx gtfs-scorecard
uvx --from gtfs-scorecard scorecard try https://example.org/gtfs.zip
pip install gtfs-scorecard

The first starts the MCP server. The second runs the command-line tool, which has its own name, so uvx needs --from to find the package that provides it. Check https://pypi.org/project/gtfs-scorecard/ for the versions that exist. Before then, or to run code that is not released yet, install from the repository:

uvx --from "git+https://github.com/ChelseaKR/gtfs-scorecard#subdirectory=pipeline" scorecard-mcp

Connect an assistant

An MCP client config that starts the server from PyPI (once it is there; use the repository form above until then):

{
  "mcpServers": {
    "gtfs-scorecard": {
      "command": "uvx",
      "args": ["gtfs-scorecard"]
    }
  }
}

Set SCORECARD_BASE_URL to point it at a fork or a local preview.

More

• Site and scorecards: https://gtfsscorecard.org/
• Report bundle for programs that support many agencies: https://gtfsscorecard.org/bundle/
• MCP tools and what they refuse to say: https://github.com/ChelseaKR/gtfs-scorecard/blob/main/docs/mcp.md
• GitHub Action that gates a build on a feed's grade: https://github.com/marketplace/actions/gtfs-scorecard-gate
• Source, issues, and changelog: https://github.com/ChelseaKR/gtfs-scorecard

Apache-2.0.