Server data from the Official MCP Registry
Validate emails (MX, disposable, role, typo) and phone numbers, singly or in batches, for AI agents.
About
Validate emails (MX, disposable, role, typo) and phone numbers, singly or in batches, for AI agents.
Remote endpoints: streamable-http: https://contactlint.com/mcp
Security Report
Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.
3 tools verified · Open access · No issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Found in Source Code
Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"com-contactlint-contactlint": {
"url": "https://contactlint.com/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
ContactLint MCP server
ContactLint is a hosted MCP server that checks email addresses and phone numbers before your agent saves or uses them. It runs at a public URL, so there is nothing to install.
- Endpoint:
https://contactlint.com/mcp(Streamable HTTP, JSON-RPC over POST) - Website: https://contactlint.com/
- Docs: https://contactlint.com/#mcp
- OpenAPI (REST API): https://contactlint.com/openapi.json
- MCP Registry:
com.contactlint/contactlint
This repository holds the listing files only (this README, server.json and a client config example). The server itself is hosted by ContactLint.
Tools
| Tool | Input | What it does |
|---|---|---|
validate_email | email | Checks syntax, MX and A records over DNS-over-HTTPS, known disposable domains, role addresses (admin@, no-reply@) and free providers, and suggests a fix when the domain looks like a typo of a major provider (gmial.com). |
validate_emails | emails (1 to 50 addresses) | Same checks as validate_email for up to 50 addresses in one call. Returns one result per address in the same order plus a summary of verdicts. |
validate_phone | phone, optional country (ISO 3166-1 alpha-2 default region, for example US) | Parses and validates a phone number: valid and possible flags, line type, region, E.164, national and international formats. |
ContactLint does not connect to mail servers (no SMTP probing), so it cannot confirm that a mailbox exists or detect catch-all domains.
initialize and tools/list work without a key, so clients and directory scanners can read the tool list. tools/call needs an API key.
Configuration
One setting is required:
| Name | Required | Description |
|---|---|---|
apiKey | yes | Your ContactLint API key. Get a free key at https://contactlint.com/signup |
Send it as an Authorization: Bearer <apiKey> header (an x-api-key header also works).
Example client config (see examples/mcp.json):
{
"mcpServers": {
"contactlint": {
"type": "http",
"url": "https://contactlint.com/mcp",
"headers": { "Authorization": "Bearer YOUR_API_KEY" }
}
}
}
examples/config-schema.json describes the apiKey setting as JSON Schema, for directories and clients that ask for one.
Billing
- One check per address or number checked. A
validate_emailscall with 20 addresses uses 20 checks. - Addresses whose DNS lookup fails come back
unknownand are not billed. - If a key does not have enough checks for a whole
validate_emailslist, nothing is checked or billed. - 100 checks per month are free, no card needed.
- Credit packs: 5,000 checks for $9, 25,000 for $35, 100,000 for $99.
Free tools
Free browser tools (disposable email checker, phone number validator, disposable domain list) are at https://contactlint.com/tools
License
MIT, see LICENSE.
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