toolgrep / MCP servers / coldHat
Alternatives to coldHat
coldHat: Public working-rule sets ('hats') that an AI assistant can adopt in a chat via an 'open sesame' command and a hat address. 8 products similar to coldHat, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 7 of 8 have an API, 8 of 8 offer an MCP server, 3 of 8 are open source.
- knowsme
One memory of you and your work, shared by AI agents that speak MCP
- Model Context Protocol (MCP)
An open-source standard for connecting AI applications to external systems.
- CometChat MCP Server
Model Context Protocol server exposing CometChat documentation and implementation bundles to AI coding agents.
- Nerdit
The cloud for small software built with AI
- UseMyContext.ai
A private, user-owned personal context layer for AI assistants, served over MCP
- Keelen
Autonomous AI coding agent for GitHub repositories, managed via a hosted MCP server
- Teebots
Local AI assistant that runs a team of bots on your own device
- HackMD
Real-time collaborative Markdown workspace for teams, communities, and AI agents
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| coldHat | Free | yes | yes | yes | no | yes |
| knowsme | Freemium · from $5/month | yes | yes | yes | no | no |
| Model Context Protocol (MCP) | Free | yes | yes | yes | yes | yes |
| CometChat MCP Server | Free | yes | yes | yes | no | yes |
| Nerdit | Freemium · from $20/month (Pro); free tier for linking your own machines | yes | yes | yes | — | yes |
| UseMyContext.ai | Freemium · from $0 | yes | yes | yes | yes | — |
| Keelen | Freemium · from $29 | yes | yes | yes | no | no |
| Teebots | Free | yes | no | yes | no | — |
| HackMD | Freemium · from $5 per seat/month (Prime, billed annually); Free tier available; Enterprise custom pricing | yes | yes | yes | no | no |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/coldhat/alternatives