onetool-mcp
★ 19
vs
claude-slack-bridge
★ 28
onetool-mcp vs claude-slack-bridge
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.; claude-slack-bridge: Claude ↔ Slack Bridge is a two-way bridge enabling Claude Code to pause and ask questions via Slack, wait for replies, and resume. It also allows tagging a bot in Slack to run Claude with full project context based on the channel. The system uses a daemon+session model for multiple concurrent sessions with zero polling.
01
TL;DR
Choose onetool-mcp if…Cutting MCP token overhead when an agent needs 10+ external tools
Choose claude-slack-bridge if…Claude needs human approval during a task: it posts a question to Slack, waits for a reply, and continues.
02
Side-by-Side Comparison
03
Features
onetool-mcp01100+ 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
claude-slack-bridge01Two-way communication: Claude asks questions via Slack and resumes after reply; Slack mentions launch Claude with project context.
02Multi-session support: handles concurrent Claude sessions independently via daemon and per-session Docker exec.
03Project-aware bot: maps Slack channels to project directories, runs claude -p with correct context.
04Git worktree support: route Slack messages to different branches without config changes.
05Optional access control: restrict bot usage by user and channel with flexible/strict modes.
04
Use Cases
onetool-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
claude-slack-bridge↳Claude needs human approval during a task: it posts a question to Slack, waits for a reply, and continues.
↳Developer wants to quickly run Claude on a specific project: they tag the bot in the project's Slack channel.
↳Working on multiple branches concurrently: each worktree routes to separate Slack threads without config changes.
05
Best For
onetool-mcpHidden GemEssential
claude-slack-bridgeTrendingAPI Integration
FAQ
FAQ
What is the difference between onetool-mcp and claude-slack-bridge?
Both onetool-mcp and claude-slack-bridge are in the API Integration category. onetool-mcp has 19 stars, while claude-slack-bridge has 28 stars.
Which is better, onetool-mcp or claude-slack-bridge?
The best choice depends on your use case. Choose onetool-mcp if Cutting MCP token overhead when an agent needs 10+ external tools, and claude-slack-bridge if Claude needs human approval during a task: it posts a question to Slack, waits for a reply, and continues..
Is onetool-mcp free or open source?
Yes, onetool-mcp is open source on GitHub (GPL-3.0).
Is claude-slack-bridge free or open source?
Yes, claude-slack-bridge is open source on GitHub (MIT).
→