# opensrc-mcp

> Use this tool when you need to efficiently search and browse large codebases without overwhelming the context window. The opensrc-mcp server fetches and queries dependency source code from npm, PyPI, crates.io, and GitHub, allowing for context-efficient searching through server-side JavaScript execution. It provides a codemode interface for agents to input queries and receive relevant code outputs.

Canonical page: https://skillsregistry.net/skills/dmmulroy-opensrc-mcp  
JSON: https://api.skillsregistry.net/v1/skills/dmmulroy-opensrc-mcp

## Description

A codemode MCP server for fetching and querying dependency source code from npm, PyPI, crates.io, and GitHub. It allows agents to execute server-side JavaScript for context-efficient searching and browsing of large codebases without overwhelming the LLM's context window.

## Trust

- **Trust score (0–1):** 0.92
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** version-control
- **Updated:** 2026-09-28

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/dhnnqoyloj)
- **Repository:** <https://github.com/dmmulroy/opensrc-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "dmmulroy-opensrc-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/dmmulroy-opensrc-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/dmmulroy-opensrc-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt