Nexus Repository MCP Server: Let AI Query Artifacts and Components

Why Give AI Access to Nexus Repository?

Sonatype Nexus Repository is the artifact manager that teams use to host Maven, npm, Docker, PyPI, and other package repositories. When you need to check if an artifact version exists, find the latest snapshot, or verify component security status, you navigate the Nexus UI and search through repositories.

An MCP server for Nexus lets your AI agent search artifacts, check versions, query component details, and review repository health directly from Claude, Cursor, or Windsurf.

What Becomes Possible

Once your AI agent has Nexus access:

• "What's the latest version of our payments-sdk artifact?"
• "Is there a snapshot build from today for the API module?"
• "Which repositories contain the auth-commons library?"
• "What vulnerabilities are reported for this component version?"
• "How much storage is the Docker hosted repo using?"
• "List all artifacts published in the last 24 hours"

How It Works

1. Go to DataFaucet and enter your Nexus URL (e.g. https://nexus.company.com)
2. Log into your Nexus Repository Manager
3. Browse repositories, search artifacts, view components as you normally would
4. Each action becomes an MCP tool your AI can call
5. Deploy and connect to Claude, Cursor, or Windsurf

Works with Nexus Repository OSS and Pro. The AI agent gets whatever access your user token permits.

Security Best Practices

• Read-only role — create a user with nx-repository-view-*-*-read only
• Repository-scoped — restrict to specific repositories, not all
• No deploy permissions — prevent AI from publishing or deleting artifacts
• Audit logging — Nexus logs all API access for compliance
• Token-based auth — use user tokens instead of passwords

Use Cases by Role

Backend developers: Version checks. "What's the latest release of our shared library?" without searching Nexus manually.

DevOps engineers: Repository management. "How much disk space is the Docker registry using?" for capacity planning.

Security engineers: Vulnerability review. "Which components have known CVEs?" for compliance audits.

Release managers: Artifact verification. "Is the 2.3.0 release artifact published to the releases repo?" before deploy.

Nexus UI vs AI Agent

Getting Started

Create a read-only user for AI access:

1. Go to Security → Users → Create Local User
2. Assign the nx-repository-view-*-*-read role
3. Scope to specific repositories if needed
4. Generate a user token under your profile

Then point DataFaucet at your Nexus instance, authenticate with the read-only user, and your AI agent can query artifacts and components as MCP tools.