Regex Tester API
Test, validate and explain regular expressions with match highlighting. x402 micropayment.
MCP server · by Br0ski777
About
Regex Tester API is an MCP server published by Br0ski777. 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 remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
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.
Works with
- Claude Code
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
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 remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport sse regex-generator https://regex-generator.api.klymax402.com/mcp{
"mcpServers": {
"regex-generator": {
"url": "https://regex-generator.api.klymax402.com/mcp"
}
}
}The endpoint speaks SSE. Codex connects to STDIO and streamable HTTP servers only, so it has no config here.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.1.0 | Forks (GitHub): 0 Stars (GitHub): 1 |
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.
-
Test regular expressions in a timeout-guarded worker, explain them, find catastrophic backtracking.
-
Explain a regex in plain English and detect catastrophic backtracking risk.
-
regex-mcp io.github.mrfentmen/regex-mcp
Test, describe, and validate regular expressions locally. No network and no key.
-
Regex matching, email/URL format validation, and JSON Schema validation.
-
Extract regular expressions from code, each with a ReDoS safety verdict.
-
regex io.github.rog0x/regex
Regex test, explain, replace patterns for AI agents
-
Detects catastrophic-backtracking (ReDoS) regex risk via AST parsing, with JS-safe rewrites.
-
Deterministic regex synthesis from labeled examples. Zero LLM, proof matrix, backtracking audit.
-
17 tools for code analysis, JSON repair, encoding fix, format conversion, diff, and regex.
-
regex-lab io.github.ryudi84/regex-lab
MCP server for regex testing, matching, replacing, and validation
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)
-
Turn LLM instructions (skills, plugins, prompts) into standalone, deterministic scripts — more reliable than agent calls, with no token cost and faster execution.
-
Run Codeflash as a background agent in Claude Code to automatically optimize Python, Java, JavaScript, and TypeScript code for performance. Codeflash analyzes your code…
-
AI code review that catches production-breaking bugs, business logic issues, and security vulnerabilities — directly in Claude Code.
-
LLM security for AI coding agents. Protect applications from prompt injection, PII leakage, and data exfiltration. Provides MCP tools for scanning text, redacting PII, and…
-
Code knowledge graph MCP extension — semantic code search, symbol lookup, and dependency analysis powered by tree-sitter and vector embeddings
Has a listing on Claude Code: claude-plugins-official (5)
-
Your code review partner. CodeRabbit provides external validation using a specialized AI architecture and 40+ integrated static analyzers—offering a different perspective that…
-
MCP server for terminal commands, file operations, and process management
-
Deep vulnerability scanning of your own code, run entirely inside your Claude Code session at a chosen effort tier, with every finding challenged before it is reported and the…
-
Automate API security directly in Claude Code with 42Crunch - automatically audit OpenAPI specs, detect vulnerabilities aligned with OWASP API Security risks (including…
-
CodSpeed is the all-in-one performance testing toolkit. Dive into benchmarking results, flamegraphs, and performance comparisons — give Claude granular profiling context to…
Has a listing on Claude: knowledge-work-plugins (5)
-
MCP server for terminal commands, file operations, and process management
-
Security review for Claude-generated code. Pattern-based warnings on edits, LLM-powered diff review on Stop, and an agentic commit reviewer that catches injection, XSS, SSRF…
-
Bring Qodo's codebase intelligence, coding standards, and code review into your coding agent.
-
Skills for working with Langfuse, the open-source LLM engineering platform for tracing, prompt management, and evaluation.
-
A suite of agent skills for the full GrowthBook feature flag and experimentation lifecycle.
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
-
AI-powered code review in Codex, powered by CodeRabbit.
-
Inspect repositories, triage pull requests and issues, debug CI, and publish changes through a hybrid GitHub connector and CLI workflow.
-
Build with OpenAI APIs, Agents SDK, and ChatGPT Apps, and create and save OpenAI API keys from Codex.
-
Use MagicPath to find, inspect, install, create, and edit UI components from Codex.
Has a listing on Community GitHub marketplaces (5)
-
Checks every Python file Claude writes, before you read it: syntax, lint, types, an AST security policy and a credential scan, with the exact fix when there is one.
-
Token-efficient code exploration via tree-sitter AST parsing. 70+ languages, 86-99% token savings.
-
Community of Consciousness MCP Server — upload and explore collective wisdom via GitHub.
-
GodPrompt MCP + Agent Skill for coding agents with TDD, debugging, verification, and task routing.
-
Sourcery security findings for AI coding agents: triage and minimal-change remediation via the public Sourcery API (12 MCP tools + skills).
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Shows live prompt-cache reuse, expiry, token composition, and AIU cost for the current GitHub Copilot session without making model calls.
-
Model, visualize, and deploy applications with Radius from the GitHub Copilot app and CLI.
-
Plain-English translation layer for non-technical Copilot CLI users. Translates every approval prompt, error message, and technical output into clear, jargon-free English with…
-
Meta prompts that help you discover and generate curated GitHub Copilot agents, instructions, prompts, and skills.
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Advanced Security plugin for GitHub Copilot.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Navigate and interact with your C++ code using the Microsoft C++ Language Server.
-
Bring Azure DevOps work-item, repository, and pull-request workflows into GitHub Copilot.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
Has a listing on Cursor: cursor/plugins (5)
-
playwright-mcp io.github.microsoft/playwright-mcp
Playwright Tools for MCP
-
Iterative self-referential AI loops using the Ralph Wiggum technique.
-
Build apps, scripts, and automations with the TypeScript SDK.
-
CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.
-
Browse and automate the web with TinyFish: run multi-step web automations, search the web, extract clean page content, and drive remote stealth browser sessions.
Has a listing on Docker MCP Catalog (5)
-
MCP server for using Semgrep to scan code for security vulnerabilities.
-
Educational Python refactoring assistant that provides guided suggestions for AI assistants.
-
MCP server for terminal commands, file operations, and process management
-
Stop stitching context for Copilot and Cursor. With Sequa MCP, your AI tools know your entire codebase and docs out of the box.
-
playwright-mcp io.github.microsoft/playwright-mcp
Playwright Tools for MCP
Has a listing on Official MCP Registry (5)
-
Test regular expressions in a timeout-guarded worker, explain them, find catastrophic backtracking.
-
Explain a regex in plain English and detect catastrophic backtracking risk.
-
regex-mcp io.github.mrfentmen/regex-mcp
Test, describe, and validate regular expressions locally. No network and no key.
-
Regex matching, email/URL format validation, and JSON Schema validation.
-
Extract regular expressions from code, each with a ReDoS safety verdict.
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.