Pyslang MCP

Name: Pyslang MCP
Author: ariklapid

pyslang-mcp · by ariklapid

pyslang-mcp is a read-only Model Context Protocol server for compiler-backed Verilog and SystemVerilog analysis. It uses pyslang to parse HDL projects, report diagnostics, inspect design units and hierarchy, and expose structured semantic information to AI tools.

20 10 tools GitHub PyPI

No known CVEs

Apache-2.0 license

Maintained

Last commit 73d ago

Works with most clients

Transport: stdio, sse

10 tools · ~996 tok

Grade B · 0.5% of 200K ctx

MCPpedia last refreshed this data 22h ago

This server has been archived and is no longer actively maintained.

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Pyslang MCP is an MCP server that pyslang-mcp is a read-only Model Context Protocol server for compiler-backed Verilog and SystemVerilog analysis. It uses pyslang to parse HDL projects, report diagnostics, inspect design units and hierarchy, and expose structured semantic information to AI tools. Its tool list has not been published yet over stdio and sse, requires no API key, and scores 71/100 on MCPpedia's security, maintenance and efficiency rubric.

Developer Tools

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "pyslang-mcp": {
      "args": [
        "-m",
        "pyslang_mcp",
        "--transport",
        "stdio"
      ],
      "command": "/path/to/python"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/pyslang-mcp)](https://mcppedia.org/s/pyslang-mcp)

Read me

What Pyslang Mcp does

pyslang-mcp is an alpha-quality, local-first Model Context Protocol server for read-only, compiler-backed analysis of Verilog and SystemVerilog projects using pyslang.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

uvx 'pyslang-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

71/100across 5 weighted dimensions

How we score →

0255075100

−29

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked pyslang-mcp against OSV.dev.

Inventory

Tools (10)

Click any tool to inspect its schema.

~996 tokens total

Community

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Frequently Asked Questions

Is Pyslang Mcp safe to use?: Pyslang Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.
How do I install Pyslang Mcp?: Pyslang Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Pyslang Mcp do?: Pyslang Mcp provides 10 tools: pyslang_parse_files, pyslang_parse_filelist, pyslang_get_diagnostics, pyslang_list_design_units, pyslang_describe_design_unit and 5 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Pyslang Mcp?: Pyslang Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.
Is Pyslang Mcp actively maintained?: Pyslang Mcp is recently maintained — last commit was 73 days ago. It has 20 GitHub stars.

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Community

Discussion

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Frequently Asked Questions

Is Pyslang Mcp safe to use?

Pyslang Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.

How do I install Pyslang Mcp?

Pyslang Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Pyslang Mcp do?

Pyslang Mcp provides 10 tools: pyslang_parse_files, pyslang_parse_filelist, pyslang_get_diagnostics, pyslang_list_design_units, pyslang_describe_design_unit and 5 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Pyslang Mcp?

Pyslang Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse transport.

Is Pyslang Mcp actively maintained?

Pyslang Mcp is recently maintained — last commit was 73 days ago. It has 20 GitHub stars.