RegexForge MCP Server

by walkojas-boop Your server? Claim it

answering

RegexForge is answering right now. Last checked 1 min ago. It exposes 1 tools.

Deterministic regex synthesis from labeled examples. Zero LLM, proof matrix, backtracking audit.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 47 days of history

47 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

102 ms

Response time

average over 24h

open, no key

Access

streamable-http

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add regexforge --transport http https://regexforge.jason-12c.workers.dev/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "regexforge": {
      "url": "https://regexforge.jason-12c.workers.dev/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.regexforge]
url = "https://regexforge.jason-12c.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "regexforge": {
      "url": "https://regexforge.jason-12c.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "regexforge": {
      "url": "https://regexforge.jason-12c.workers.dev/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

regexforge

regexforge_synth

Synthesize a battle-tested regex from labeled examples. Input: optional natural-language description + 20 examples (10 positive, 10 negative, or any mix of ≥4). Output: regex + flags + test matrix proving every example is handled correctly + backtracking-risk analysis. Deterministic; no LLM at serve time.

Endpoints

URL	Transport	State	Latency	Checked
https://regexforge.jason-12c.workers.dev/mcp	streamable-http	answering	100 ms	1 min ago

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RegexForge — questions

Answers built from our own checks of this server.

What can RegexForge do?

It exposes 1 tools, read directly from the server on our last check. Among them: regexforge_synth. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is RegexForge working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 102 ms. The bar chart above shows every period we have measured.

Is RegexForge still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect RegexForge?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does RegexForge need an API key?

No. RegexForge completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is RegexForge?

It answers our handshake in 102 ms on average, which is faster than 83% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.