Cyberchef MCP Server
by doublegateio.github.doublegate/cyberchef-mcpv4.2.0
GCHQ CyberChef's encryption, encoding, compression and forensics operations, plus analysis tools such as hash identification, cipher solving and RSA attacks.
context tax
queued
security
queued
cold start
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freshness
Active5d ago
Install Cyberchef MCP server
Install in Claude Code
claude mcp add cyberchef -- npx -y cyberchef-mcpInstall in Cursor
{
"mcpServers": {
"cyberchef": {
"command": "npx",
"args": [
"-y",
"cyberchef-mcp"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"cyberchef": {
"command": "npx",
"args": [
"-y",
"cyberchef-mcp"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"cyberchef": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"cyberchef-mcp"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"cyberchef": {
"command": "npx",
"args": [
"-y",
"cyberchef-mcp"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Freshness
Active — last maintenance signal 5d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-04 · 5d ago · GitHub
Latest release
2026-09-12 · 28d ago · GitHub · v4.2.0
Package published
no data · npm/PyPI
Registry entry updated
2026-09-12 · 28d ago · official registry · v4.2.0
FAQ
›How do I install the Cyberchef MCP server in Claude Code?
Run: claude mcp add cyberchef -- npx -y cyberchef-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Cyberchef require an API key?
No required environment variables are declared in its published metadata.
›Can I use Cyberchef as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Cyberchef in the official MCP registry?
Yes, as io.github.doublegate/cyberchef-mcp.
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