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onetool-mcp vs foundryvtt-mcp
onetool-mcp logo
onetool-mcp
★ 19
vs
foundryvtt-mcp logo
foundryvtt-mcp
★ 24

onetool-mcp vs foundryvtt-mcp

onetool-mcp: OneTool MCP is a single MCP server that bundles 100+ tools — Brave search, Google, Context7, AWS, Playwright, Chrome DevTools, Excel, database operations, and more. Instead of registering each tool individually and burning context on their definitions, agents write short Python code to call any tool on demand. Anthropic engineering research backs this approach: code execution reduces token usage by over 98%, cutting costs dramatically when agents need many external tools.; foundryvtt-mcp: An MCP server that integrates with FoundryVTT, enabling AI assistants to roll dice, query game data, and generate content via natural language. It supports live connection via Socket.IO, provides MCP resources, and includes diagnostics when the REST API module is available. Installation is simple with npx or bunx, and it works with MCP-compatible clients like Claude Desktop and VS Code.

01

TL;DR

onetool-mcp logoChoose onetool-mcp if…

Cutting MCP token overhead when an agent needs 10+ external tools

foundryvtt-mcp logoChoose foundryvtt-mcp if…

Roll dice for attack rolls

02

Side-by-Side Comparison

Field
onetool-mcp logoonetool-mcp
foundryvtt-mcp logofoundryvtt-mcp
Category
API Integration
Dev Tooling
Stars
★ 19
★ 24
License
GPL-3.0
MIT
Updated
1d ago
2w ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
claude, claude-code, llm
foundryvtt-module, mcp-server, mcp-servers
03

Features

onetool-mcp logoonetool-mcp
01100+ tools in one MCP server: search, AWS, Playwright, databases, Excel, and more
02Code mode: agents write Python API calls instead of loading tool definitions
0396% fewer tokens vs loading individual MCP servers
04Works with Claude Code or any MCP-compatible client
05uv-based install with optional tool groups
foundryvtt-mcp logofoundryvtt-mcp
01Dice Rolling — standard RPG notation with any formula
02Data Querying — search and inspect actors, items, scenes, journals
03Game State — combat tracking, chat messages, user presence
04Content Generation — NPCs, loot tables, rule lookups
05Live Connection — Socket.IO loads complete world state on connect
04

Use Cases

onetool-mcp logoonetool-mcp
↳Cutting MCP token overhead when an agent needs 10+ external tools
↳Browser automation and web scraping within a unified MCP setup
↳Database queries, file operations, and API calls from one MCP server
foundryvtt-mcp logofoundryvtt-mcp
↳Roll dice for attack rolls
↳Query NPCs and items in a scene
↳Search world for dragon-related content
05

Best For

onetool-mcp logoonetool-mcp
Hidden GemEssential
foundryvtt-mcp logofoundryvtt-mcp
TrendingMemory & Context
FAQ

FAQ

What is the difference between onetool-mcp and foundryvtt-mcp?
Both onetool-mcp and foundryvtt-mcp are in the API Integration category. onetool-mcp has 19 stars, while foundryvtt-mcp has 24 stars.
Which is better, onetool-mcp or foundryvtt-mcp?
The best choice depends on your use case. Choose onetool-mcp if Cutting MCP token overhead when an agent needs 10+ external tools, and foundryvtt-mcp if Roll dice for attack rolls.
Is onetool-mcp free or open source?
Yes, onetool-mcp is open source on GitHub (GPL-3.0).
Is foundryvtt-mcp free or open source?
Yes, foundryvtt-mcp is open source on GitHub (MIT).
→

Related

Alternatives to onetool-mcp →Alternatives to foundryvtt-mcp →onetool-mcp details →foundryvtt-mcp details →
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