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io.github.daedalus/mcp-pyright

Official registry Other

MCP server that exposes Pyright language server functionality

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

PYPI package mcp-pyright
Claude Code 
claude mcp add mcp-pyright -- uvx mcp-pyright==0.1.0
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "mcp-pyright": {
            "command": "uvx",
            "args": [
                "mcp-pyright==0.1.0"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. mcp-pyright
  2. Install
  3. Usage
  4. Development
  5. License

mcp-pyright

MCP server that exposes Pyright language server functionality

mcp-name: io.github.daedalus/mcp-pyright

Install

pip install mcp-pyright

Usage

The MCP server can be used with any MCP-compatible client. It exposes the following tools:

Type Checking
from mcp_pyright import mcp

# Run type checking
result = check_types(code="x: int = 'hello'")
Get Hover Information
# Get type information at position
result = get_hover(code="x: int = 1", position=0)
Get Completions
# Get code completions
result = get_completions(code="prin", position=4)
Get Definition
# Find definition location
result = get_definition(code="def foo(): pass\nfoo()", position=15)
Find References
# Find all references
result = find_references(code="x = 1\nx", position=5)
Get Document Symbols
# Get all symbols in document
result = get_document_symbols(code="class Foo: pass\ndef bar(): pass")
Format Code
# Format Python code
result = format_code(code="x=1\ny=2")

Development

git clone https://github.com/daedalus/mcp-pyright.git
cd mcp-pyright
pip install -e ".[test]"

# run tests
pytest

# format
ruff format src/ tests/

# lint
ruff check src/ tests/

# type check
mypy src/

License

MIT

Frequently asked questions

What is io.github.daedalus/mcp-pyright?

MCP server that exposes Pyright language server functionality

How do I install io.github.daedalus/mcp-pyright?

It runs on your machine. In Claude Code: claude mcp add mcp-pyright -- uvx mcp-pyright==0.1.0. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.daedalus/mcp-pyright need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.daedalus/mcp-pyright open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains io.github.daedalus/mcp-pyright?

It is published by daedalus. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.