Architectural sensor for Python codebases.
Archy MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. Architectural sensor for Python codebases.
I built archy after watching coding agents produce changes that passed review and rotted the import graph underneath. Then I measured whether that happens, and it barely does.
The server ships on PyPI as archy, 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.
Once Archy is connected, these are the calls the assistant has available:
archy.cli — archy.duplicatesarchy.graph — archy.indexarchy.mcp — archy.parserarchy.simulate — archy.watcherTree — sitter powered.** Robust to in-flight edits and partial files; survives syntax errors that would crash astMulti — language analysismeasurement — subjectMode — CommandInspection — archy graph, archy cyclesPlenty of developer tooling 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. Archy's toolset — archy.cli, archy.graph, archy.mcp and 6 more — is a fair guide to whether it matches your workflow. It is maintained by hslee16; 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We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| archy.cli | archy.duplicates |
| archy.graph | archy.index |
| archy.mcp | archy.parser |
| archy.simulate | archy.watcher |
| Tree | sitter powered.** Robust to in-flight edits and partial files; survives syntax errors that would crash ast. |
| Multi | language analysis |
| measurement | subject |
| Mode | Command |
| Inspection | archy graph, archy cycles |
{
"mcpServers": {
"archy": {
"command": "uvx",
"args": ["archy"]
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
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