What is pentagonal?
pentagonal is a MCP server by Pentagonal-ai that generate, audit, fix and compile smart contracts on Ethereum, Solana, Base and other chains, with adversarial multi-agent pen testing and honeypot detection. It is listed under Security and has 1 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | Pentagonal-ai |
| Repository | Pentagonal-ai/pentagonal |
| Popularity | 1 GitHub stars |
| Category | Security |
| Security | Low risk (84/100) |
| Rank | #3,603 of 4,418 MCP servers; #200 in Security |
| License | MIT |
| Last commit | 2026-07-27 |
| Runs | Cloud service |
| Language | TypeScript |
Is pentagonal safe to install?
pentagonal scores 84/100 on the MCPMods security check: Low risk. Things to review: sends your data to a cloud service. It passed 4 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 |
| Sends your data to a cloud service | Review |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install pentagonal?
- 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/Pentagonal-ai/pentagonal
- 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 pentagonal -- <command from README> claude mcp add --transport http pentagonal <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 pentagonal for you:
Add the "pentagonal" MCP server from https://github.com/Pentagonal-ai/pentagonal 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.