AgentIndex icon
AgentIndex
montycat-mcp logo
montycat-mcp
★ 28
vs
3dcitydb-mcp-server logo
3dcitydb-mcp-server
★ 18

montycat-mcp vs 3dcitydb-mcp-server

montycat-mcp: Montycat MCP is a self-hosted server that provides AI agents with persistent, searchable memory, enabling them to retain context and decisions across sessions. It supports various Model Context Protocol clients, allowing multiple agents to read from and write to a single shared memory store with hybrid search capabilities.; 3dcitydb-mcp-server: The 3DCityDB MCP Server enables AI assistants to access and reason about semantic 3D city models stored in a 3DCityDB v5 geodatabase using natural language. It dynamically resolves CityGML schema, properties, and attributes, allowing AI to execute SQL queries and understand spatial and semantic information without manual prompt engineering.

01

TL;DR

montycat-mcp logo
montycat-mcpMemory & Context · ★ 28

Storing and recalling team decisions and preferences

Read montycat-mcp full review →
3dcitydb-mcp-server logo
3dcitydb-mcp-serverMemory & Context · ★ 18

Enabling AI assistants to answer natural language queries about 3D city models.

Read 3dcitydb-mcp-server full review →
02

Side-by-Side Comparison

Field
montycat-mcp logomontycat-mcp
3dcitydb-mcp-server logo3dcitydb-mcp-server
Category
Memory & Context
Memory & Context
Stars
★ 28
★ 18
License
MIT
Apache-2.0
Install Command
pip install montycat-mcp
pip install 3dcitydb-mcp-server
Updated
2w ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
AI Agents, Shared Memory, Persistent Memory
3D City Models, CityGML, PostgreSQL
03

Features

montycat-mcp logomontycat-mcp
01Persistent memory across chat sessions
02Single shared memory for multiple AI agents
03Hybrid search (vector, keyword, BM25) for recall
04Self-hosted server, engine, and embeddings
3dcitydb-mcp-server logo3dcitydb-mcp-server
01Dynamic schema resolution for CityGML object classes and properties.
02Secure read-only SQL query execution against 3DCityDB.
03Integrated Gradio chat UI with multi-LLM support and live reasoning traces.
04One-click import functionality for CityGML, CityJSON, and IFC files (Docker Fullstack).
04

Use Cases

montycat-mcp logomontycat-mcp
↳Storing and recalling team decisions and preferences
↳Maintaining project context and progress across AI agent interactions
↳Facilitating collaboration among multiple AI agents through shared scopes
↳Providing persistent knowledge base for AI assistants
3dcitydb-mcp-server logo3dcitydb-mcp-server
↳Enabling AI assistants to answer natural language queries about 3D city models.
↳Developing software to interact with OGC CityGML compliant 3D city models.
↳Performing complex spatial and semantic analyses on 3D city data through an interactive chat interface.
FAQ

FAQ

What is the difference between montycat-mcp and 3dcitydb-mcp-server?
Both montycat-mcp and 3dcitydb-mcp-server are in the Memory & Context category. montycat-mcp has 28 stars, while 3dcitydb-mcp-server has 18 stars.
Which is better, montycat-mcp or 3dcitydb-mcp-server?
The best choice depends on your use case. Choose montycat-mcp if Storing and recalling team decisions and preferences, and 3dcitydb-mcp-server if Enabling AI assistants to answer natural language queries about 3D city models..
Is montycat-mcp free or open source?
Yes, montycat-mcp is open source on GitHub (MIT).
Is 3dcitydb-mcp-server free or open source?
Yes, 3dcitydb-mcp-server is open source on GitHub (Apache-2.0).
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