Kael MCP Server is listed as active in the registry but did not answer our last check. Last commit 20 Mar 2026.
16 AI-native tools with dual SSE + streamable-http transport. Free tier available.
What the code does
We read the source, 10 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
const result = execSync(`whois ${domain.replace(/[^a-zA-Z0-9.-]/g, "")} 2>/dev/null`, {
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.
claude mcp add kael-mcp-server --transport http https://www.kael.ink/mcp/sse{
"mcpServers": {
"kael-mcp-server": {
"url": "https://www.kael.ink/mcp/sse"
}
}
}[mcp_servers.kael-mcp-server]
url = "https://www.kael.ink/mcp/sse"{
"mcpServers": {
"kael-mcp-server": {
"url": "https://www.kael.ink/mcp/sse"
}
}
}{
"mcpServers": {
"kael-mcp-server": {
"url": "https://www.kael.ink/mcp/sse"
}
}
}This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://www.kael.ink/mcp/sse | sse | answering | 452 ms | 6 min ago |
| https://www.kael.ink/mcp/stream | streamable-http | answering | 447 ms | 6 min ago |
Alternatives to Kael MCP Server
same job, measured the same wayAI-native HTTP security testing MCP server — 17 tools with raw HTTP/1.1 + HTTP/2 control
Next.js development tools MCP server with stdio transport
Streamable HTTP MCP server exposing planner flows, tasks, and squads.
SQLite MCP server with OAuth 2.1, HTTP/SSE, 122 tools, and smart tool filtering
Swift-native MCP server for Word (.docx) manipulation with 148 tools
Proton Mail MCP via Bridge (IMAP/SMTP) · 13 tools · dual transport stdio + HTTP.
MCP server for serial port communication. 25 tools, resources, prompts, and stdio/HTTP transports.
Streamable HTTP MCP server for Google Calendar and Sheets with OAuth login.
Kael MCP Server — questions
Answers built from our own checks of this server.