What is horizon-shield?
horizon-shield is a MCP server by ogasurfproject-jpg that verify AI-agent evidence records on the Bitcoin-anchored JIDEC ledger: fetch record bytes, recompute the SHA-256 and check the OpenTimestamps timestamp. It is listed under Security and has 2 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | ogasurfproject-jpg |
| Repository | ogasurfproject-jpg/horizon-shield |
| Popularity | 2 GitHub stars |
| Category | Security |
| Security | Low risk (84/100) |
| Rank | #2,792 of 4,418 MCP servers; #138 in Security |
| License | MIT |
| Last commit | 2026-10-18 |
| Runs | Cloud service |
| Language | TypeScript |
Is horizon-shield safe to install?
horizon-shield 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 horizon-shield?
- 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/ogasurfproject-jpg/horizon-shield/tree/main/workers/hs-jidec-mcp
- 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 horizon-shield -- <command from README> claude mcp add --transport http horizon-shield <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 horizon-shield for you:
Add the "horizon-shield" MCP server from https://github.com/ogasurfproject-jpg/horizon-shield/tree/main/workers/hs-jidec-mcp 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.