# validate_mobile_number

Validate Indian mobile number and detect operator/circle.

Agent View of the PolicyLayer registry record for `validate_mobile_number`. HTML page: https://policylayer.com/tools/rehan1020-mcp-india-stack/validate-mobile-number

## Facts

- Tool: `validate_mobile_number`
- Server: Mcp India Stack (`rehan1020/mcp-india-stack`) — https://policylayer.com/tools/rehan1020-mcp-india-stack.md
- Homepage: https://github.com/rehan1020/MCP-India-Stack
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

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

## Why validate_mobile_number is rated Low

This tool performs validation and operator/circle detection on a mobile number input—a read-only operation that queries or checks data against rules without creating side effects, modifying records, executing arbitrary code, or causing financial impact. The severity is low because misuse would only reveal publicly available operator/circle information from a phone number, posing minimal harm.

From the tool's own definition: "Tool name 'validate_mobile_number' and description 'Validate Indian mobile number and detect operator/circle' indicate data retrieval and validation without modification, creation, deletion, execution of code/commands, or financial transactions."

## Use case

AI agents call validate_mobile_number to retrieve information from Mcp India Stack without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Mcp India Stack:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "validate_mobile_number": {}
  }
}
```

## Other tools on Mcp India Stack (59)

- `build_aa_consent_request` — Other — https://policylayer.com/tools/rehan1020-mcp-india-stack/build-aa-consent-request.md
- `calculate_advance_tax` — Other — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-advance-tax.md
- `calculate_emi` — Other — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-emi.md
- `calculate_gratuity` — Other — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-gratuity.md
- `calculate_income_tax` — Other — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-income-tax.md
- `calculate_income_tax_interest` — Other — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-income-tax-interest.md
- `calculate_salary_restructuring` — Other — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-salary-restructuring.md
- `calculate_tds` — Other — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-tds.md
- `bulk_validate_aadhaar` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/bulk-validate-aadhaar.md
- `bulk_validate_gstin` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/bulk-validate-gstin.md
- `bulk_validate_ifsc` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/bulk-validate-ifsc.md
- `bulk_validate_pan` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/bulk-validate-pan.md
- `calculate_capital_gains` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-capital-gains.md
- `calculate_epf_esic` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-epf-esic.md
- `calculate_fd_maturity` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-fd-maturity.md
- `calculate_gst` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-gst.md
- `calculate_gst_late_fee` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-gst-late-fee.md
- `calculate_home_vs_rent` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-home-vs-rent.md
- `calculate_hra_exemption` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-hra-exemption.md
- `calculate_leave_encashment_tax` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-leave-encashment-tax.md
- `calculate_neft_rtgs_imps_charges` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-neft-rtgs-imps-charges.md
- `calculate_nps_projection` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-nps-projection.md
- `calculate_ppf_maturity` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-ppf-maturity.md
- `calculate_presumptive_tax` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-presumptive-tax.md
- `calculate_professional_tax` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-professional-tax.md
- `calculate_rd_maturity` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-rd-maturity.md
- `calculate_sip_returns` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-sip-returns.md
- `calculate_step_up_sip` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-step-up-sip.md
- `calculate_sukanya_samriddhi` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-sukanya-samriddhi.md
- `calculate_surcharge` — Read — https://policylayer.com/tools/rehan1020-mcp-india-stack/calculate-surcharge.md
- …and 29 more: https://policylayer.com/tools/rehan1020-mcp-india-stack.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=rehan1020-mcp-india-stack · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/rehan1020-mcp-india-stack