Offline phone-number validation and formatting (E.164, region, line type). No carrier lookup.
Connect Remote server
claude mcp add --transport http phonecheck https://phonecheck.mike-tusa.workers.dev/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"phonecheck": {
"url": "https://phonecheck.mike-tusa.workers.dev/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"phonecheck": {
"type": "http",
"url": "https://phonecheck.mike-tusa.workers.dev/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://phonecheck.mike-tusa.workers.dev/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 2 found in our last check
parse_phone_numberValidate one phone number offline against libphonenumber metadata and return E.164, international, national and RFC 3966 formats, region, calling code and line type (from the original allocation). Valid means the number fits an allocated range, not that the line is connected or…
get_example_numberReturn the libphonenumber example (mobile) number for a region, in all formats, for format testing only (do not dial). Read-only. Same data and limits as GET /v1/example/{country}.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional. 'Bearer <key>' for higher limits. Works without a key. |
Details
| Endpoint | https://phonecheck.mike-tusa.workers.dev/mcp (Streamable HTTP) |
| First published | 12 Oct 2026 |
| Last updated | 12 Oct 2026 |
| Registry name | dev.workers.mike-tusa.phonecheck/phonecheck |
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