Regex/Email/URL Validator MCP Server

by apished Your server? Claim it

answering

Regex/Email/URL Validator is answering right now. Last checked 6 min ago. It exposes 4 tools.

Regex matching, email/URL format validation, and JSON Schema validation.

Uptime history 14 days of history

14 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

184 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Regex/Email/URL Validator every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add regex-email-url-validator --transport http https://apished.com/mcp/v1/validate

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

{
  "mcpServers": {
    "regex-email-url-validator": {
      "url": "https://apished.com/mcp/v1/validate"
    }
  }
}

~/.codex/config.toml

[mcp_servers.regex-email-url-validator]
url = "https://apished.com/mcp/v1/validate"

.cursor/mcp.json

{
  "mcpServers": {
    "regex-email-url-validator": {
      "url": "https://apished.com/mcp/v1/validate"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "regex-email-url-validator": {
      "url": "https://apished.com/mcp/v1/validate"
    }
  }
}

Available tools 4

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

email_validate

Checks value is a single, bare RFC 5322 email address — syntax only, not a deliverability check. user@localhost is valid (no TLD required). "Name <email>" display syntax is rejected.

jsonschema

jsonschema_validate

Validates document against schema (JSON Schema draft-07 or 2020-12). Reports one specific violation per call, not an aggregated list.

regex

regex_match

Tests input against pattern (Go's regexp package: RE2 syntax, not PCRE — no backreferences or lookaround; use inline flags like (?i) for case-insensitive matching). Returns the full match and captured groups.

url

url_validate

Checks value is a well-formed absolute URL (has both a scheme and a host) — syntax only, not a reachability check.

Endpoints

URL	Transport	State	Latency	Checked
https://apished.com/mcp/v1/validate	streamable-http	answering	242 ms	6 min ago

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Regex/Email/URL Validator — questions

Answers built from our own checks of this server.

What can Regex/Email/URL Validator do?

It exposes 4 tools, read directly from the server on our last check. Among them: email_validate, jsonschema_validate, regex_match, url_validate. 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 Regex/Email/URL Validator working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 184 ms. The bar chart above shows every period we have measured.

How do I connect Regex/Email/URL Validator?

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 Regex/Email/URL Validator need an API key?

No. Regex/Email/URL Validator completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Regex/Email/URL Validator?

It answers our handshake in 184 ms on average, which is faster than 75% 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.