Whatsapp Number Validator3 MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| API_KEY | Yes | API key for authentication |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
| logging | {} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| extensions | {
"io.modelcontextprotocol/ui": {}
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| single_validationB | Checks if a given number is registered on WhatsApp. |
| bulk_validation_10A | Checks if the numbers in given list are registered on WhatsApp. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 2 tools
The two tools are clearly distinct: one validates a single number, the other validates a list of numbers. An agent can easily choose based on the number of inputs.
Both tools follow a similar pattern with 'validation' as the base noun, prefixed by 'single' and 'bulk_10'. The '10' in bulk_validation_10 is a minor oddity but does not break the overall consistency.
With only 2 tools, the server feels minimal but not entirely inadequate for its narrow purpose. The count is borderline per the calibration, as 1-2 tools is considered thin.
The core use case of WhatsApp number validation is covered: single and bulk checks. The bulk tool is limited to 10 numbers, but agents can loop for larger batches, making it workable with minor gaps.