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HydraDNS MCP server

by hydradns·io.github.hydradns/hydra-mcp·v0.1.0·1 stars
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Manage a self-hosted DNS firewall: block domains, create policies, read query logs and metrics.

C68/100grade C
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Safety scan
C68/100

full report

Adoption
New

1 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

HydraDNS tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.10 · 2026-10-30 · same rubric, same numbers if you re-run it

no findings
  • –Code scanpackage could not be scannedn/a
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 33 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 68/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How HydraDNS compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
68/100
higher than 30% of 48,255 servers
GitHub stars
1
more than 65% of 28,688 servers

Install HydraDNS in Claude Code, Cursor or VS Code

claude mcp add hydra-mcp -- docker run -i --rm ghcr.io/hydradns/hydra-cli:0.1.0
Add to Cursor

What the publisher says

From the HydraDNS repository's README, as published. We do not edit it. Read it on GitHub

HydraDNS

A self-hosted DNS firewall in Go. Blocks ads, malware and trackers network-wide, like Pi-hole. API-first control plane, a real dashboard, a CLI, and a built-in Model Context Protocol server so Claude or any MCP agent can manage policy for you.

Screenshots and product site at hydradns.app (a marketing site with static screenshots, not an interactive demo)

HydraDNS vs Pi-hole

Choose Pi-hole today for battle-tested stability, regex rules, and community support. Choose HydraDNS for a hackable Go codebase, an API-first control plane, and AI-agent management over MCP that self-hosted alternatives only get through third-party bridges.

Honest limits: like every DNS-layer filter, HydraDNS cannot stop a client that hardcodes a DoH server by raw IP. Pair it with a firewall rule on 443/853 to close that path. For the fuller list (no TLS on the dashboard/gRPC yet, no DNSSEC, regex/wildcard policies not enforced, and more), see docs/limitations.md.

Why HydraDNS

I spent 15 months building an enterprise next-generation firewall in Go, and kept wishing the self-hosted version of that tooling existed: something a home or small-office network could run, with a real API and a control plane you could drive from a script or an AI agent instead of a settings page. HydraDNS is that tool. The built-in Model Context Protocol server comes from the same work I do upstream as a CNCF Jaeger contributor, where I build MCP tooling for observability.

It is pre-1.0 and moving fast. If it is useful to you, a star and an issue both help.

Built by Roshan Singh (@lopster568).

Quick Start

# Clone (single repo, no submodules)
git clone https://github.com/hydradns/hydradns.git
cd hydradns

# Start everything
docker compose up -d

# Verify DNS is working
dig @localhost example.com

# Check the dashboard
open http://localhost:3000

Port 53 already in use? On Linux or WSL2, systemd-resolved may already hold port 53.

Free it before starting: sudo systemctl disable --now systemd-resolved (then set a DNS

server in /etc/resolv.conf), or edit the port mapping in docker-compose.yml.

See docs/pi-deployment.md for details.

That's it. DNS filtering is active. Give this machine a static IP and point your router's DNS to it. See docs/pi-deployment.md for static IP setup on Linux, macOS, and Windows plus per-router DNS instructions.

Architecture

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Grade history

  • 2026-10-30downgradeB → Cscore 68

HydraDNS: common questions

Is HydraDNS MCP server safe?
With care: it is graded C, so read the findings first (68/100). Read the HydraDNS safety report
How do I install HydraDNS?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does HydraDNS need an API key?
Yes. The registry entry asks for HYDRA_TOKEN.
Is HydraDNS maintained?
The last commit was 38 days ago (2026-09-27). The latest release is v0.1.0.
What can I use instead of HydraDNS?
Servers from other publishers that do the same job: Netdata MCP server and Domain Liveness MCP server.
How does HydraDNS compare with other MCP servers?
safety score 68/100 (higher than 30% of 48,255 servers); github stars 1 (more than 65% of 28,688 servers). Full comparison.

Alternatives to HydraDNS

Same job from other publishers: the closest match first, then the best rated.

  • Netdata
    Real-time infrastructure monitoring with metrics, logs, alerts, and ML-based anomaly detection.
    A
  • Domain Liveness
    Is this business's website still there? Checks apex and www, and DNS separately from HTTP.
    A