Spring-AI-showcase-with-simple-MCP-Server

A local Spring Boot demo that exposes an MCP server providing simple real-time Date/Time tools (current time/date/year/week day) for an LLM (e.g., via LM Studio).

Evaluated Apr 04, 2026 (17d ago)

Repo ↗ DevTools java spring-boot spring-ai mcp llm-tools local-development docker-compose date-time showcase

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

Rate Limits

🔒 Security

TLS Enforcement

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

MCP endpoint is configured as http://localhost:58090/mcp with no documented auth. README explicitly warns that the LM Studio server is not secure when served on local network; no equivalent MCP security guidance is provided. TLS requirements, secret management, and input validation/error-handling are not described.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Best When

You run everything locally (trusted network) and want an easy MCP-style tool bridge for an LLM.

Avoid When

You need strong network security controls, authentication, or a public-facing service endpoint.

Use Cases

• Local agent/LLM experimentation with tool calling
• Building a minimal MCP server that aggregates real-time data
• Prototyping prompt/tool patterns for time-based questions

Not For

• Production deployments on untrusted networks (per README warning)
• Security-sensitive environments without hardening/authentication

Interface

REST API

GraphQL

gRPC

MCP Server

Yes ↗

SDK

Webhooks

Authentication

OAuth: No Scopes: No

README does not describe authentication/authorization for the MCP endpoint; LM Studio chat server guidance mentions it is not secure when exposed on local network.

Pricing

Free tier: No

Requires CC: No

Project is a demo; no pricing information provided.

Agent Metadata

Pagination

none

Idempotent

False

Retry Guidance

Not documented

Known Gotchas

⚠ Only a small set of tools (DateTimeTools) is provided, so it’s not a general-purpose tool suite.
⚠ README indicates no differentiation between tools/resources/prompts.
⚠ No tests; some performance observations are manual.

Alternatives

Other MCP servers/libraries and examples for Spring AI Generic time/date tools via existing agent toolkits Build a small REST service + OpenAPI for tool calling instead of MCP

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API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-04-04.