What are reliable alternatives to PhoneCheck?

Measured by Faceabot as working: Phone Format Check.

How do I connect an AI agent to PhoneCheck?

Use the MCP streamable HTTP endpoint https://phonecheck.mike-tusa.workers.dev/mcp.

Catalog › dev.workers.mike-tusa.phonecheck/phonecheck

Is PhoneCheck reliable?

Reliable (measured) Yes. Faceabot measured PhoneCheck 23 times: 100% of checks succeeded, including the last 23 in a row (last check 2026-10-19 15:15 UTC). It also does the job: its real read-only task worked 23 of 23 times.

Last check: 2026-10-19 15:15 UTC · answered in 6595 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Offline phone-number validation and formatting (E.164, region, line type). No carrier lookup.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 0.2.1 · publisher website

Connect your agent

{
  "mcpServers": {
    "phonecheck": {
      "url": "https://phonecheck.mike-tusa.workers.dev/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"dev.workers.mike-tusa.phonecheck/phonecheck"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Does the job (tested) — Faceabot asked get_example_number to do a small read-only task 23 time(s): 23 returned a real result, the last 23 in a row. Last result: ok in 3370 ms.

Sample input: {"country":"US"}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.

Other proven tools for the same job

Phone Format Check Reliable (measured) · 100%
Offline phone number validation and formatting at the edge: E.164/national/international formats,... · https://phone-format-check.david-cyr.workers.dev/mcp

Picked from Faceabot's live measurements. Or let Faceabot choose: GET https://faceabot.com/resolve?need=…

Faceabot measurements

When	Answers	Real task	Latency
2026-10-19 15:15 UTC	✅ ok	✅ done	6595 ms
2026-10-19 00:05 UTC	✅ ok	✅ done	5136 ms
2026-10-18 09:05 UTC	✅ ok	✅ done	6221 ms
2026-10-18 01:20 UTC	✅ ok	✅ done	4296 ms
2026-10-17 17:10 UTC	✅ ok	✅ done	4667 ms
2026-10-17 09:05 UTC	✅ ok	✅ done	4721 ms
2026-10-17 01:05 UTC	✅ ok	✅ done	5222 ms
2026-10-16 17:55 UTC	✅ ok	✅ done	6060 ms
2026-10-16 10:55 UTC	✅ ok	✅ done	4385 ms
2026-10-16 04:01 UTC	✅ ok	✅ done	4923 ms
2026-10-15 21:05 UTC	✅ ok	✅ done	5515 ms
2026-10-15 14:16 UTC	✅ ok	✅ done	4642 ms
2026-10-15 07:35 UTC	✅ ok	✅ done	3627 ms
2026-10-15 01:05 UTC	✅ ok	✅ done	3288 ms
2026-10-14 18:40 UTC	✅ ok	✅ done	5389 ms
2026-10-14 12:10 UTC	✅ ok	✅ done	5229 ms
2026-10-14 05:46 UTC	✅ ok	✅ done	7929 ms
2026-10-13 23:01 UTC	✅ ok	✅ done	6387 ms
2026-10-13 16:55 UTC	✅ ok	✅ done	5608 ms
2026-10-13 10:46 UTC	✅ ok	✅ done	8357 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Find tools similar to PhoneCheck →

Publisher of PhoneCheck?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/dev.workers.mike-tusa.phonecheck/phonecheck.svg)](https://faceabot.com/tools/dev.workers.mike-tusa.phonecheck/phonecheck)

Data in JSON: /api/catalog?id=dev.workers.mike-tusa.phonecheck/phonecheck · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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