io.github.kastelldev/kastell
Server security audit (413 checks), hardening, and fleet management across 4 cloud providers.
MCP server · by kastelldev
About
io.github.kastelldev/kastell is an MCP server published by kastelldev. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-13.
What it asks for
- Runs on your machine
- Secrets: 4
- Settings: 4
Requires: DIGITALOCEAN_TOKEN (secret), HETZNER_TOKEN (secret), LINODE_TOKEN (secret), VULTR_TOKEN (secret)
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Package
- npm downloads/week: 108 (2026-10-13)
- npm downloads/month: 790 (2026-10-13)
- Latest version on npm: 2.3.1, published 2026-06-30
No known vulnerabilities in OSV for 1.14.0 (checked 2026-10-13)
npm facts come from the public npm registry (registry.npmjs.org, api.npmjs.org). Each figure is the registry's own and is never added to another. A registry that publishes no figure shows none: no number is not zero. Vulnerability records come from OSV.dev (CC BY 4.0) and concern the declared version only; a listing that declares no version gets no answer. We do not scan code.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: npm package
Built from what Official MCP Registry declares.
claude mcp add --env "DIGITALOCEAN_TOKEN=<YOUR_DIGITALOCEAN_TOKEN>" --env "HETZNER_TOKEN=<YOUR_HETZNER_TOKEN>" --env "LINODE_TOKEN=<YOUR_LINODE_TOKEN>" --env "VULTR_TOKEN=<YOUR_VULTR_TOKEN>" --transport stdio kastell -- npx -y kastell
[mcp_servers.kastell]
command = "npx"
args = ["-y", "kastell"]
[mcp_servers.kastell.env]
DIGITALOCEAN_TOKEN = "<YOUR_DIGITALOCEAN_TOKEN>"
HETZNER_TOKEN = "<YOUR_HETZNER_TOKEN>"
LINODE_TOKEN = "<YOUR_LINODE_TOKEN>"
VULTR_TOKEN = "<YOUR_VULTR_TOKEN>"
{
"mcpServers": {
"kastell": {
"command": "npx",
"args": [
"-y",
"kastell"
],
"env": {
"DIGITALOCEAN_TOKEN": "<YOUR_DIGITALOCEAN_TOKEN>",
"HETZNER_TOKEN": "<YOUR_HETZNER_TOKEN>",
"LINODE_TOKEN": "<YOUR_LINODE_TOKEN>",
"VULTR_TOKEN": "<YOUR_VULTR_TOKEN>"
}
}
}
}
Replace the values in angle brackets with your own. We show the names of the settings, never values.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.14.0 | Downloads/month (npm): 790 Downloads/week (npm): 108 Forks (GitHub): 2 Stars (GitHub): 60 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
mastyf.ai io.github.mastyf-ai/mastyf.ai
Runtime proxy for MCP security, cost governance & audit
-
mcp io.github.runsec-io/mcp
RunSec MCP server for workspace security scanning and remediation workflows.
-
qualys-mcp io.github.rijul170/qualys-mcp
Full Qualys portal management over MCP: VMDR, PC, WAS, Cloud Agent, Container Security & more
-
turva-mcp dev.turva/turva-mcp
Read-only MCP server for turva.dev, an agent-readiness audit and advisory service.
-
heimdall io.github.caglarbozkurt/heimdall
Scan an MCP server or agent config for injection, exfiltration, and risky capabilities.
-
stackhawk com.stackhawk/stackhawk
An MCP server that provides interaction with StackHawk's security scanning platform.
-
mcp io.github.shieldly-io/mcp
AI-Powered AWS security analysis: scan IAM policies and CloudFormation for risks and escalation.
-
4da-mcp-server io.github.4DA-Systems/4da-mcp-server
Upgrade intelligence for AI agents: what an upgrade changes, where it touches your code, CVE scans.
-
Historical AWS analysis CLI; not a current Cyntrisec product.
-
mcp-audit-server io.github.joepangallo/mcp-audit-server
Thin MCP and CLI proxy for AI agent and MCP security auditing via a hosted backend
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
MCP security gateway that wraps any MCP server with per-tool policies, Ed25519-signed decision receipts, and human approval gates. Shadow mode (default) logs every tool call…
-
Drive the ARMO Cloud and Kubernetes security platform from natural language: incidents, CVEs, posture, runtime, and policies, with dry-run safety on every mutation.
-
agent-discover io.github.keshrath/agent-discover
Find, install and enable MCP servers mid-session on any host, with consent and tool pinning
-
Secure MCP servers with OAuth 2.1, token introspection, dynamic client registration, and CIMD so AI agents can call your MCP tools with verified identities
-
AI-native security intelligence. Query your security posture, investigate threats, triage alerts, and run SQL against all your connected data sources — directly from Claude Code.
Has a listing on Claude Code: claude-plugins-official (5)
-
Operational skill for installing, configuring, operating, and debugging CrowdSec (cscli, LAPI/CAPI, hub, bouncers, WAF/AppSec) across bare-metal, Docker, and Kubernetes.
-
Dynatrace observability skills: DQL query patterns, application and infrastructure monitoring, log analysis, problem investigation, and incident response workflows, with the…
-
Hosted MCP server for AI-assisted Grafana Cloud observability — no local installation required.
-
Investigate incidents, review code and execute UAT for release readiness, scan code for vulnerabilities, and run penetration tests with AWS DevOps Agent and AWS Security Agent.
-
Generate more accurate Terraform and automate workflows for HCP Terraform and Terraform Enterprise
Has a listing on Claude: knowledge-work-plugins (5)
-
Hosted MCP server for AI-assisted Grafana Cloud observability — no local installation required.
-
The Vanta plugin connects Claude Code to Vanta's security and compliance platform through the Vanta MCP server. It combines Vanta's test-specific remediation intelligence with…
-
Query the StackHawk platform API for security posture reporting, findings analysis, and app management. Guides agents through authentication, data retrieval, and result…
-
Official SigNoz plugin for MCP setup, docs, queries, dashboards, and alerts
-
Deploy, debug, and monitor applications on Render. Includes skills, an agent, slash commands, and a render.yaml validation hook.
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Cloudflare platform plugin with curated skills for Workers, Wrangler, and Agents SDK plus the official Cloudflare API MCP server.
-
Codex Security workflows for security scans, analysis, and investigation.
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
-
CrowdStrike Falcon Fusion skills for authoring, deploying, and executing Fusion workflows. Includes live action discovery, YAML authoring with schema validation, workflow import…
-
Available for US1 customers only. Analyze, investigate, and act on your Datadog telemetry directly from ChatGPT using natural language. Ask questions about your production…
Has a listing on Community GitHub marketplaces (5)
-
4da-mcp-server io.github.4DA-Systems/4da-mcp-server
Upgrade intelligence for AI agents: what an upgrade changes, where it touches your code, CVE scans.
-
cybersec-toolkit io.github.26zl/cybersec-toolkit
Authorization-gated MCP server to discover and run 670+ security tools for CTF, pentest, and DFIR.
-
Operational skill for installing, configuring, operating, and debugging CrowdSec (cscli, LAPI/CAPI, hub, bouncers, WAF/AppSec) across bare-metal, Docker, and Kubernetes.
-
Dynatrace observability skills: DQL query patterns, application and infrastructure monitoring, log analysis, problem investigation, and incident response workflows, with the…
-
Investigate incidents, review code and execute UAT for release readiness, scan code for vulnerabilities, and run penetration tests with AWS DevOps Agent and AWS Security Agent.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Interactive GitHub Copilot canvas for discovering, connecting, and managing hosted MCP servers from an Azure Connector Namespace.
-
Transform Claude into an Azure expert. This plugin integrates the Azure MCP server and specialized Azure skills to move beyond generic advice. It enables Claude to perform…
-
A focused set of prompts, instructions, and a chat mode to help triage incidents and respond quickly with DevOps tools and Azure resources.
-
Use Datadog directly in Copilot / VS Code through a preconfigured Datadog MCP server. Query logs, metrics, traces, dashboards, and more through natural conversation.
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Advanced Security plugin for GitHub Copilot.
-
mcp-apps
Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
model-apps
Build and deploy Power Apps generative pages for model-driven apps with specialist agents for planning, entity creation, and parallel code generation. Requires PAC CLI >= 2.7.0…
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
Has a listing on Cursor: cursor/plugins (5)
-
CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.
-
Fan large tasks out across parallel cloud agents with planners, workers, verifiers, and structured handoffs.
-
Inspect and manage feature gates, experiments, dynamic configs, and metrics.
-
Build apps, scripts, and automations with the TypeScript SDK.
-
Scaffold and validate new agent plugins.
Has a listing on Docker MCP Catalog (5)
-
stackhawk com.stackhawk/stackhawk
An MCP server that provides interaction with StackHawk's security scanning platform.
-
Starting point for using the awslabs MCP servers.
-
Dynatrace-mcp io.github.dynatrace-oss/Dynatrace-mcp
[DEPRECATED] Dynatrace MCP Server. Migrate to dynatrace-for-ai or Dynatrace Remote MCP Server.
-
AI interface to troubleshoot and observe Kubernetes/Container workloads.
-
AI-powered DevOps assistant for managing cloud infrastructure and applications.
Has a listing on Official MCP Registry (5)
-
mastyf.ai io.github.mastyf-ai/mastyf.ai
Runtime proxy for MCP security, cost governance & audit
-
mcp io.github.runsec-io/mcp
RunSec MCP server for workspace security scanning and remediation workflows.
-
qualys-mcp io.github.rijul170/qualys-mcp
Full Qualys portal management over MCP: VMDR, PC, WAS, Cloud Agent, Container Security & more
-
turva-mcp dev.turva/turva-mcp
Read-only MCP server for turva.dev, an agent-readiness audit and advisory service.
-
heimdall io.github.caglarbozkurt/heimdall
Scan an MCP server or agent config for injection, exfiltration, and risky capabilities.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Is this your plugin?
Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.