Regex runs on your own machine — the client starts it, so there is no endpoint to ping. 27 installs a week from npm. Last commit 21 Mar 2026.
Regex test, explain, replace patterns for AI agents
Today is the operative word: we check Regex every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add regex -- npx -y @rog0x/mcp-regex-tools
{
"mcpServers": {
"regex": {
"args": [
"-y",
"@rog0x/mcp-regex-tools"
],
"command": "npx"
}
}
}
[mcp_servers.regex]
command = "npx"
args = ["-y", "@rog0x/mcp-regex-tools"]
{
"mcpServers": {
"regex": {
"args": [
"-y",
"@rog0x/mcp-regex-tools"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"regex": {
"args": [
"-y",
"@rog0x/mcp-regex-tools"
],
"command": "npx"
}
}
}
Test, explain, and generate regular expressions
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MCP server for regex testing, matching, replacing, and validation
Answers built from our own checks of this server.