JSR MCP Server

MCPOpen SourceMIT13.9

by wyattjoh • Security & Privacy

An MCP server that exposes the JavaScript Registry (JSR) API to LLMs and agents for searching, inspecting, and managing packages and scopes.

Example Use Cases

1
Search the JSR registry and retrieve package metadata, versions, and dependency information programmatically.
2
Manage scopes, invite or update members, and perform package publishing or version operations with authenticated write access.
3
Obtain registry-wide statistics, list packages, or handle OAuth-style authorizations and publishing task status checks.

Description

This MCP server provides 40 tools to access and manipulate the JSR registry, including searching packages, fetching package details and versions, managing scopes, members and publishing workflows, and retrieving registry statistics. It is designed for integration with LLMs (via the Model Context Protocol) so agents can perform read operations without authentication and perform authenticated write operations using a JSR API token. The server is implemented as a Deno monorepo with packages for core JSR access and the MCP server, and includes examples for running directly, installing globally, and integrating with Claude Desktop.

Capabilities(40 total)

Tools (40)

jsr_search_packages

Search for packages in the JSR registry. Returns a list of packages matching the query.

query:stringlimit:numberskip:number

jsr_get_package

Get detailed information about a specific package in the JSR registry.

scope:string*name:string*

jsr_get_package_version

Get detailed information about a specific version of a package.

scope:string*name:string*version:string*

jsr_list_package_versions

List all available versions of a specific package.

scope:string*name:string*limit:numberpage:number

jsr_get_scope

Get detailed information about a scope in the JSR registry.

scope:string*

Quick Actions

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Security

Scanned 2 month(s) ago

Risk Level

MINIMAL

Read-only data retrieval, no side effects

Trust Score

C51/100

5/17 checks passed

Scores are informational only and provided “as is” without warranty. AgentHotspot assumes no liability for actions taken based on these ratings.

Quick Stats

Service TypeMCP

Pricing ModelFree

Capabilities40 Tools / 0 Prompts / 0 Resources

Ownerwyattjoh

CategorySecurity & Privacy

DependenciesStandalone

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