Regex Lab MCP server

Read from the package source without running it. The installed server may list more.

• replace_regex

  Replace matches in a string using a regex pattern and replacement string.

• test_regex

  Test a regex pattern against a string. Returns all matches with positions and capture groups.

• validate_regex

  Check if a regex pattern is syntactically valid.

• Code scan3 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitylocal package, no credentials required12/15
• Maintenancelast push 214 days ago4/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Safety score

75/100

higher than 45% of 48,255 servers

Tools

3

the typical server has 7

Tools that change things

0%

typical: 0%. Fewer write tools means less an agent can break

GitHub stars

1

more than 65% of 28,688 servers

Regex Lab: common questions

Is Regex Lab MCP server safe?

Mostly: it is graded B (75/100). Read the Regex Lab safety report

How do I install Regex Lab?

It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.

Does Regex Lab need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Regex Lab maintained?

The last commit was 251 days ago (2026-02-25). The latest release is v1.0.2.

What can I use instead of Regex Lab?

Servers from other publishers that do the same job: Keploy MCP server.

How does Regex Lab compare with other MCP servers?

safety score 75/100 (higher than 45% of 48,255 servers); tools 3 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.