Tools (5)

validate_phone_number
format_phone_number
list_calling_codes
get_calling_code
report_feedback

validate_phone_number

Validate and parse a phone number.

Returns country, number type (mobile/landline/toll_free/premium), and formatted versions (E.164, international, national).

Parameter	Type	Required	Description
`number`	`string`	required	Phone number to validate (E.164, international, or national format, e.g. +14155551234, 00441234567890).

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "validate_phone_number",
    "arguments": {
      "number": "123456789"
    }
  }
}

format_phone_number

Format a phone number in the specified style.

Returns the number formatted as E.164 (+1234567890), international (+1 234 567 890), or national (0234 567 890).

Parameter	Type	Required	Description
`number`	`string`	required	Phone number to format.
`fmt`	`string`	optional	Output format: e164, international, or national. (default: "e164")

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "format_phone_number",
    "arguments": {
      "number": "123456789"
    }
  }
}

list_calling_codes

List all known country calling codes with metadata.

Returns calling code, country name, trunk prefix, number length ranges, and example numbers for ~50 countries.

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "list_calling_codes",
    "arguments": {}
  }
}

get_calling_code

Get calling code details for a specific country.

Returns calling code, trunk prefix, number length, example numbers, and known prefix patterns for mobile/landline.

Parameter	Type	Required	Description
`country_code`	`string`	required	ISO 3166-1 alpha-2 country code (e.g. US, GB, NO, DE).

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "get_calling_code",
    "arguments": {
      "country_code": "NO"
    }
  }
}

report_feedback

Report a bug, feature request, or general feedback for this data source.

Use this when something doesn't work as expected, when you'd like
a new feature, or when you have suggestions for improvement.

Args:
feedback: Describe the issue or suggestion.
feedback_type: One of 'bug', 'feature_request', or 'general'.

Parameter	Type	Required	Description
`feedback`	`string`	required
`feedback_type`	`string`	optional	(default: "general")

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "report_feedback",
    "arguments": {
      "feedback": "example"
    }
  }
}

Quick Start

Shell

curl -X POST "https://context.gnist.ai/mcp/phone-validation/" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "Gnist-API-Key: YOUR_API_KEY" \
  -d '{"jsonrpc": "2.0", "method": "tools/call", "id": 1, "params": {"name": "validate_phone_number", "arguments": {"number": "example"}}}'

Python

import httpx

resp = httpx.post(
    "https://context.gnist.ai/mcp/phone-validation/",
    headers={"Gnist-API-Key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "validate_phone_number",
    "arguments": {
      "number": "example"
    }
  }
},
)
print(resp.json())