What is mastyf.ai?
mastyf.ai is a MCP server by mastyf-ai that runtime security proxy for MCP that blocks prompt injection, SSRF, shell/SQL injection and credential exfiltration, plus trust scores for npm MCP packages. It is listed under Security and has 21 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | mastyf-ai |
| Repository | mastyf-ai/mastyf.ai |
| Popularity | 21 GitHub stars |
| Category | Security |
| Security | Low risk (80/100) |
| Rank | #1,297 of 4,418 MCP servers; #61 in Security |
| License | AGPL-3.0 |
| Last commit | 2026-10-14 |
| Runs | Locally |
| Language | TypeScript |
| Platforms | macOS, Windows, Linux |
Is mastyf.ai safe to install?
mastyf.ai scores 80/100 on the MCPMods security check: Low risk. Things to review: can take actions such as send, write or deploy. It passed 3 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Runs on your machine only | Pass |
| Needs an API key or account login | Note |
| Can take actions such as send, write or deploy | Review |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install mastyf.ai?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/mastyf-ai/mastyf.ai
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add mastyf-ai -- <command from README> claude mcp add --transport http mastyf-ai <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs mastyf.ai for you:
Add the "mastyf.ai" MCP server from https://github.com/mastyf-ai/mastyf.ai to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.