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ContactLint

Checks email addresses and phone numbers before saving them, via an HTTP API, testing syntax, DNS MX records, disposable domains and typos.

Free plan · From $9 onceActively maintained

ContactLint: data, price, alternatives
At a glancechecked Oct 29, 2026

not read yet

Use

For
developers and product teams validating signup forms and contacts before AI agents write to a CRM
Price
Free plan · From $9 oncepricing page, read Oct 28, 2026
Activity
Actively maintainedrelease 4 days ago · site updated 4 days ago
Company
Crypto Boutique LLC · Domain since 2026 (registered this year)privacy policy · domain registered
How it runs
API
Used for
  • flag mistyped email domains during signup
  • check contacts before an agent saves them to a CRM
  • clean a CSV contact list before sending
read off contactlint.com on Oct 28, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 28, 2026
Your datawhat they publish, each line with its page · read Oct 28, 2026

These are ContactLint's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 28, 2026
  • MCP servercom.contactlint/contactlintverified in the MCP registry
  • Stateanswers, 3 toolschecked 2026-10-28
  • Address to connectcontactlint.com/mcp
  • OpenAPI spec8 pathsthe spec ↗
  • MCP docscontactlint.com/email-validation-mcp-serverthe vendor's page ↗

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Voiceby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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From people who use itnot part of the reading

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Questions this page answers
  • What is ContactLint?

    Checks email addresses and phone numbers before saving them, via an HTTP API, testing syntax, DNS MX records, disposable domains and typos. It is listed in the Atlas under Voice and made by Crypto Boutique LLC.

  • Who is ContactLint for?

    developers and product teams validating signup forms and contacts before AI agents write to a CRM

  • How much does ContactLint cost?

    ContactLint has a free plan; paid plans start at $9 once, per its pricing page on 2026-10-28.

  • Is ContactLint free?

    Yes, ContactLint has a free plan, per its pricing page on 2026-10-28.

  • Do people use ContactLint?

    Little sign of use.

  • Is ContactLint still maintained?

    Actively maintained: release 4 days ago · site updated 4 days ago.

  • Who owns ContactLint?

    ContactLint is run by Crypto Boutique LLC, per its privacy policy (2026-10-28).

  • Is ContactLint safe?

    We do not audit vendors. What ContactLint publishes, read 2026-10-28: GDPR, CCPA stated on its privacy policy.

  • What are alternatives to ContactLint?

    In Voice, by use: MobileValidate, 1Lookup, Enrow, ParseAPI, CallerKit.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk