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PopNx MCPMCP servers for people who use AI · explained in plain words

Precleared Contact Check

by gabrielaoimevbore-beepversion 1.3.0i★ –iRuns in the cloud
Registry namedev.precleared/contact-check

Install

Overview

Description from the maker (original English)

Cold email compliance check, 12 countries: per-address verdict, rule cited, signed receipt.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Chat & email
  • You need to fill in: Authorization

Install

Pick the AI app you use, then copy the settings.

Before you install

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http contact-check https://precleared.dev/mcp --header 'Authorization: your-value'

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "contact-check": {
      "url": "https://precleared.dev/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "contact-check": {
      "type": "http",
      "url": "https://precleared.dev/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • Authorization secret HTTP header
    Optional. Bearer pc_live_... from https://precleared.dev/get-key, for prepaid packs. Without it, 100 free checks a day over MCP.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

  • contact_check

    Is it legal to send a cold or marketing email to this person? Check before the first email to any new lead, prospect or contact who is not already a customer, one call per address: a compliance check for B2B sales outreach, prospecting and lead lists. Whether it is allowed, or ne

  • verify_receipt

    Fetch a Precleared receipt by its id (cc_rcpt_...) to show what was checked, when, and the verdict, with the hashes, Ed25519 signature and public key needed to verify it. Use it when a person or an audit asks for proof of a check.

  • suppress_contact

    Records that a person asked not to be emailed, on this Precleared key's opt-out list, so every agent and tool using the key gets blocked for that address from contact_check. Use it as soon as someone replies stop, unsubscribes, bounces or complains. Give email or domain; set remo

  • link_account

    Links this connection to the person's own Precleared key, so checks use their own free allowance, 14-day trial and plan instead of the shared free allowance. Use it when the person asks to sign in to or connect Precleared, or when contact_check says the free checks have run out.

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 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain precleared.dev (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✓ Pass

    Endpoint responds

    Responded in 1096 ms (HTTP 200)

  • – 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

Compared with others in Chat & emaili

  • More stars than 0% of the other 1771 servers in this category
  • Published to the registry more recently than 87% of the other 1771 servers in this category
  • Basic checks equal to or better than 100% of the other 1771 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 Precleared Contact Check safe?

It passed 3 of 3 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?

You need to fill in: Authorization

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 –, and the latest version (1.3.0) reached the registry 3 days 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 in developer mode.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Vexa

by Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago
Install

emailmd

by anypost

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Computer or cloud★ 1,385MITUpdated 31 days ago
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MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

Runs on your computer★ 277MITUpdated 5 months ago
Install

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.

Precleared: cold-email legality checks for AI agents

Is your agent allowed to send that? Precleared answers before the email goes out: a per-address verdict on cold marketing email, the rule quoted, what the footer must include, and a signed receipt anyone can verify. Covers the UK (PECR and UK GDPR), the US (CAN-SPAM), Canada (CASL), Germany (UWG), France (CPCE), Australia (Spam Act), Ireland (S.I. 336/2011), the Netherlands (Telecommunicatiewet), Spain (LSSI), Italy (Privacy Code), Latvia (Information Society Services Law) and the United Arab Emirates (PDPL).

It sits between the step that finds an address (Hunter, Apollo, Clay) and the step that sends (Gmail, Outlook, Instantly, lemlist). One call per new contact, before the first email. It is not needed for invoices, receipts or other transactional email.

  • Site and docs: https://precleared.dev/docs
  • MCP server (streamable HTTP): https://precleared.dev/mcp
  • REST: POST https://precleared.dev/api/v1/check
  • OpenAPI: https://precleared.dev/openapi.json
  • Rules, with sources: https://precleared.dev/rules

Plugin and agent skill

This repository is also a Claude plugin and an Agent Skills skill. The plugin connects your agent to the hosted MCP server and adds cold-email-check, a skill that tells the agent when to run a check (before the first cold email to a new address, not for invoices or replies), how to fill in the facts without guessing, what to do with each verdict and where to keep the receipt.

Claude Code:

claude plugin marketplace add gabrielaoimevbore-beep/precleared-mcp

claude plugin install precleared@precleared

If you added the Precleared MCP server separately before, remove it so the tools don't appear twice.

Claude.ai, the desktop app and Cowork: Customize, Plugins, Add, Add marketplace, enter gabrielaoimevbore-beep/precleared-mcp, then add Precleared and connect its connector from the plugin's Connectors tab.

Cursor, Codex, OpenCode and other agents that read skills:

npx skills add gabrielaoimevbore-beep/precleared-mcp

The skill uses the Precleared MCP tools when they are connected. Otherwise it runs skills/cold-email-check/scripts/check.mjs (Node 18 or later, no dependencies), which calls the REST API for one address or a whole list:

node skills/cold-email-check/scripts/check.mjs --email jane@acme.co.uk --sender GB --source SOURCE --pitch "bookkeeping software"

node skills/cold-email-check/scripts/check.mjs --file leads.csv --sender GB --source SOURCE --out leads-checked.csv

SOURCE is where the addresses came from: published, bought, scraped, given or unknown. It changes the verdict, so give the real answer. The script sends each address and the facts given for it to precleared.dev, with PRECLEARED_API_KEY if you set it. Nothing else leaves your machine, and nothing is sent to the recipient.

Add it to your client

Cursor: Add to Cursor

VS Code: Add to VS Code

Claude Code:

claude mcp add --transport http precleared https://precleared.dev/mcp

Claude.ai and the Claude desktop app: Settings, Connectors, Add custom connector, paste https://precleared.dev/mcp.

Claude directory: https://claude.ai/directory/precleared (one click, no setup).

Smithery: connect through https://smithery.ai/servers/gabrielaoimevbore/precleared. The key is an optional connection setting there.

Official MCP registry: dev.precleared/contact-check

Local server over stdio (this repository): for clients that only run local servers.

{

"mcpServers": { "precleared": { "command": "npx", "args": ["-y", "github:gabrielaoimevbore-beep/precleared-mcp"], "env": { "PRECLEARED_API_KEY": "pc_live_..." } } } }

Or with Docker: docker build -t precleared-mcp . && docker run -i --rm -e PRECLEARED_API_KEY=pc_live_... precleared-mcp. The key is optional either way. Any client can also bridge the hosted endpoint with npx mcp-remote https://precleared.dev/mcp --transport http-only.

Any MCP client (JSON):

{

"mcpServers": { "precleared": { "url": "https://precleared.dev/mcp", "headers": { "Authorization": "Bearer pc_live_..." } } } }

The Authorization header is optional, and X-API-Key: pc_live_... works too. Without a key you get 100 free checks a day over the hosted MCP endpoint (10 over REST), shared by everyone on the same IP address. A free key from https://precleared.dev/get-key gives you your own 100 a day over MCP (25 over REST); a £39 pack adds 2,000 checks that never expire.

Claude Managed Agents

A ready-made agent definition that checks every recipient before drafting is in examples/claude-managed-agents.

What is in this repository

index.js is a small MCP server (Node 18 or later, one dependency) that exposes the same tools as the hosted endpoint and fulfils them through the public REST API. Nothing is stored locally and nothing is sent to the recipient. The hosted endpoint at https://precleared.dev/mcp is the canonical server: without a key it allows 100 checks a day, while the REST API behind this local server allows 10 a day per network, so add a free key if you run it locally at any volume.

npm install

npm test # runs the server and the skill script against a fake API on localhost, no network needed PRECLEARED_API_KEY=pc_live_... node index.js

Environment: PRECLEARED_API_KEY (optional), PRECLEARED_API_BASE (default https://precleared.dev/api/v1), PRECLEARED_TIMEOUT_MS (default 30000).

The plugin lives beside it: .claude-plugin/ holds the plugin and marketplace manifests, .mcp.json points at the hosted server, and skills/cold-email-check/ holds the skill and its script. node test/skill.mjs tests the script against a fake API.

Tools

ToolWhat it does
contact_checkTakes a recipient email or domain, your sender country (GB, US, AE or CA), the pitch, where the address came from and, if you have them, the company name, the person's name and the draft email. Returns verdict (ok_to_email, consent_needed, blocked or unknown), confidence, the rule quoted with its source, footer_text (what the email's footer must include, not wording to paste), next_step, the facts used, email_check when a draft was passed (does the footer have an opt-out, the sender's identity and, where needed, a postal address; the draft is not stored) and a signed receipt. Not needed for transactional email such as invoices.
verify_receiptTakes a receipt id and returns the receipt with its hashes, Ed25519 signature and public key.
suppress_contactAdds an address or a whole domain to the key's opt-out list, or removes it. Every later contact_check on a listed address answers blocked, free of charge. Needs PRECLEARED_API_KEY.

Example

curl https://precleared.dev/api/v1/check \

-H "Content-Type: application/json" \ -d '{"recipient_email":"jane@acme.co.uk","sender_country":"GB","address_source":"published"}'

{

"verdict": "ok_to_email", "confidence": "high", "reasons": [{ "rule_key": "gb_corporate_ok", "text": "Under PECR the consent rule for marketing email applies to individual subscribers only...", "source_title": "PECR 2003 regulation 22(1) and ICO Guide to PECR" }], "footer_text": "Say who you are and who the email is from, include a valid postal address, and give a simple free way to stop further emails (PECR regulation 23).", "next_step": "Send. Log the receipt against the lead.", "receipt": { "id": "cc_rcpt_...", "signature": "...", "key_version": "k1", "verify_url": "https://precleared.dev/api/v1/receipt?id=cc_rcpt_..." } }

What the receipt proves

That Precleared was asked this question, with these facts, at this time, and gave this answer. Every receipt has a public page at https://precleared.dev/r/ and can be verified offline with the public key at https://precleared.dev/api/v1/public-key. It is decision support with sources, not legal advice.

Privacy and terms

https://precleared.dev/privacy · https://precleared.dev/terms

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