Maven Dependencies MCP Server

The Maven Dependencies MCP Server bridges the gap between language models and the vast ecosystem of Java libraries hosted on Maven Central. By exposing a set of lightweight tools, it allows an AI assistant to query real‑time metadata about any Maven coordinate—verifying existence, discovering the latest stable releases, and filtering out pre‑release candidates. For developers building or maintaining Java projects, this capability eliminates the need to manually search repositories or run command‑line utilities; instead, an assistant can answer questions like “What is the newest version of ?” or “Does version 1.2.0 of exist?” with a single tool invocation.

At its core, the server implements several key features that are valuable for modern development workflows. It supports full Maven coordinates, including optional packaging and classifier components, ensuring compatibility with diverse build tools such as Gradle, SBT, and Mill. The tool for retrieving the latest release automatically excludes pre‑release artifacts—alpha, beta, milestone, RC, and snapshot versions—unless explicitly requested, providing developers with production‑ready version numbers by default. Additionally, the server can list all available versions for a dependency and verify the existence of a specific version, giving assistants the flexibility to perform both exploratory searches and precise validations.

Real‑world scenarios that benefit from this server include automated dependency updates in CI pipelines, intelligent code completion for build files, and proactive vulnerability scanning. For example, an assistant integrated into a code editor could suggest upgrading a dependency to the newest stable release as a developer writes a , or a security tool could flag when a project references an outdated artifact. Because the server communicates via the Model Context Protocol, it can be seamlessly added to any MCP‑compliant client—whether a desktop AI assistant like Claude or a custom IDE plugin—without altering the underlying model.

The server’s transport options further enhance its versatility. By default it uses standard input/output for local interactions, but it also offers Server‑Sent Events (SSE) over HTTP, enabling remote deployment behind a firewall or in a distributed micro‑service environment. This dual mode allows teams to expose the Maven lookup functionality as an internal service, ensuring consistent access for all developers regardless of network topology.

In summary, the Maven Dependencies MCP Server empowers AI assistants to act as a real‑time, authoritative source of Java library information. Its focused set of tools, robust filtering logic, and flexible deployment options make it a standout addition for any development environment that relies on Maven Central for dependency management.