draw.io
Create draw.io diagrams in chat from Mermaid or XML, shown live and interactive. 10,000+ shapes.
Runs in the cloud✓ service owner · draw.ioTried by the PopNx team
Email Validator
What it does
Cloudflare Workers MCP server: email-validator
- Connects Runs in the cloud
- Account or key No key needed
- Category Chat & email
Install
Pick the AI app you use, then copy the settings.
Passed 3/5 checks · What you ask goes through the maker’s server (api.lazy-mac.com) · ✓ Commands checked Nov 13, 2026
First: which AI do you use?
Pick your app and the steps appear below.
Works with Claude · about 2 min
No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it
Open Claude’s Connectors page
CustomizeConnectors
Click “Add” → “Custom” → “Web” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameEmail ValidatorRemote MCP server URL · Addresshttps://api.lazy-mac.com/email-validator/mcpClick Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add
Turn it on in a chat
+ConnectorsEmail Validator
Try it
Use Email Validator and tell me what you can do for me, then show me one thing✓ If Claude says it is using Email Validator or shows a Email Validator tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with ChatGPT, depending on your plan
Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only
Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameEmail ValidatorConnection · Addresshttps://api.lazy-mac.com/email-validator/mcpPick Email Validator in a chat
Start a new chat and pick Email Validator from your plugins before typing
Try it
Use Email Validator and tell me what you can do for me, then show me one thing✓ If ChatGPT says it is using Email Validator or shows a Email Validator tool in the answer, you are connected
Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with Claude Code · about 2 min
No key, nothing to install
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Paste this command and press Enter
claude mcp add --transport http --scope user email-validator https://api.lazy-mac.com/email-validator/mcpType /mcp in Claude Code
You should see Email Validator listed as connected
Try it
Use Email Validator and tell me what you can do for me, then show me one thing✓ If Claude Code says it is using Email Validator or shows a Email Validator tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with Cursor · about 2 min
No key, nothing to install
Open the AI chat in Cursor in Agent mode
Try it
Use Email Validator and tell me what you can do for me, then show me one thing✓ If Cursor says it is using Email Validator or shows a Email Validator tool in the answer, you are connected
Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with VS Code · about 2 min
No key, nothing to install
Open the AI chat in VS Code in Agent mode
Try it
Use Email Validator and tell me what you can do for me, then show me one thing✓ If VS Code says it is using Email Validator or shows a Email Validator tool in the answer, you are connected
Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.
Address for apps that connect over the web
Address
https://api.lazy-mac.com/email-validator/mcpJSON settings are under “For developers” below
For developers: Terminal commands and JSON settings
Over the web
Claude Code
claude mcp add --transport http --scope user email-validator https://api.lazy-mac.com/email-validator/mcpCursor (~/.cursor/mcp.json)
{
"mcpServers": {
"email-validator": {
"url": "https://api.lazy-mac.com/email-validator/mcp"
}
}
}VS Code (mcp.json)
{
"servers": {
"email-validator": {
"type": "http",
"url": "https://api.lazy-mac.com/email-validator/mcp"
}
}
}These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
At a glance
Which apps can use it
Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.
Connect over the internet in
ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast
Related guides
What it can do
Tool names and descriptions exactly as the server reported them on Nov 11, 2026. The maker wrote them, not us; we show them as plain text.
validate_emailValidate a single email address with comprehensive checks: syntax (RFC 5322), MX records, disposable domain detection, role-based detection, SPF/DKIM, typo suggestions, and risk scoring (0-100).
validate_batchBatch validate up to 100 email addresses at once. Returns individual results plus summary stats.
check_domainCheck domain reputation: MX records, SPF, DKIM, disposable detection, A record existence, and overall reputation score.
suggest_fixDetect common email typos and suggest corrections (e.g. user@gmial.com -> user@gmail.com). Covers Gmail, Yahoo, Hotmail, Outlook, iCloud, Protonmail, and more.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 15, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account lazymac2x, which owns the repo
- ! Caution
Still maintained
Code last changed 7 months ago, more than 6 months ago
- ✕ Fail
Has a licence
No licence file found in the repo
- ✓ Pass
- – Not applicable
Sign-in with OAuth
No sign-in needed
- ✓ Pass
No hidden instructions in tool descriptions
Read 4 tool descriptions and found no hidden instructions to the AI
Makers: ask for a re-check or report wrong info
Discussion
Ask, share a tip or report that it does not work. Sorted by what people marked helpful.
No posts yet. Be the first to ask or share.
Posts here are written by users, not the PopNx team.
User reviews
No reviews yet
Compared with others in Chat & emaili
- More stars than 0% of the other 2060 servers in this category
- Published to the registry more recently than 7% of the other 2060 servers in this category
- Basic checks equal to or better than 10% of the other 2060 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Email Validator safe?
It passed 3 of 5 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed 7 months ago, and the latest version (1.0.0) reached the registry 6 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT on the web (full MCP on Business and above; Pro read-only).
What can I use instead?
In the same category: draw.io, Vexa, emailmd, Kite Discord Bot Builder, e2a — email for AI agents
Similar alternatives
Same category, other makers, commands already checked. Official ones first, then by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Vexa
Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.
Runs in the cloud✓ service owner · vexa.ai
emailmd
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
Computer or cloud✓ service owner · emailmd.dev
Kite Discord Bot Builder
Build and fix Discord bots from a chat. Kite hosts them 24/7, with no code to deploy.
Runs in the cloud✓ service owner · kite.onl
e2a — email for AI agents
Authenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.
Runs in the cloud✓ service owner · e2a.dev
- draw.io — Runs in the cloud, nothing to install · No key needed
- Vexa — Runs in the cloud, nothing to install · Needs a key
- emailmd — Cloud or install on your computer · No key needed
- Kite Discord Bot Builder — Runs in the cloud, nothing to install · No key needed
- e2a — email for AI agents — Runs in the cloud, nothing to install · No key needed
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
email-validator-api
⭐ Building in public from $0 MRR. Star if you want to follow the journey — lazymac-mcp (42 tools, one MCP install) · lazymac-k-mcp (Korean wedge) · lazymac-sdk (TS client) · api.lazy-mac.com · Pro $29/mo.
🚀 Want all 42 lazymac tools through ONE MCP install?
npx -y @lazymac/mcp· Pro $29/mo for unlimited calls.
Comprehensive email validation API — syntax (RFC 5322), MX record lookup, disposable domain detection, role-based detection, SPF/DKIM checks, typo suggestions, and risk scoring (0-100). REST + MCP server.
Quick Start
npm install && npm start # http://localhost:3100Endpoints
Validate Email
curl -X POST http://localhost:3100/validate \-H "Content-Type: application/json" \ -d '{"email": "user@gmail.com"}'
→ {email, syntax, role, disposable, mx, domain, spf, dkim, typo, risk, deliverable}
Batch Validate (up to 100)
curl -X POST http://localhost:3100/validate/batch \-H "Content-Type: application/json" \ -d '{"emails": ["a@gmail.com", "b@fake.xyz"]}'
→ {total, valid, invalid, results}
Domain Check
curl -X POST http://localhost:3100/domain \-H "Content-Type: application/json" \ -d '{"domain": "gmail.com"}'
→ {domain, exists, mx, spf, dkim, is_disposable, is_free_provider, reputation_score}
Typo Suggestion
curl -X POST http://localhost:3100/suggest \-H "Content-Type: application/json" \ -d '{"email": "user@gmial.com"}'
→ {original, has_suggestion, suggested: "user@gmail.com", reason}
MCP (JSON-RPC 2.0)
curl -X POST http://localhost:3100/mcp \-H "Content-Type: application/json" \ -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'
MCP Tools: validate_email, validate_batch, check_domain, suggest_fix
License
MIT
Related projects
- 🧰 [lazymac-mcp](https://github.com/lazymac2x/lazymac-mcp) — Single MCP server exposing 15+ lazymac APIs as tools for Claude Code, Cursor, Windsurf
- ✅ [lazymac-api-healthcheck-action](https://github.com/lazymac2x/lazymac-api-healthcheck-action) — Free GitHub Action to ping any URL on a cron and fail on non-2xx
- 🌐 [api.lazy-mac.com](https://api.lazy-mac.com) — 36+ developer APIs, REST + MCP, free tier
💡 Host your own stack? Get $200 DigitalOcean credit via lazymac referral link.