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How to count live country coverage before choosing a number with Skills

An agent lists available countries and per-service pool data to pick a country that is likely to deliver codes.

Short answer: Run export SVN_API_KEY=your_key_here if the key is not already set; then run curl -s "https://sms-verification-number.com/stubs/handler_api?api_key=$SVN_API_KEY&action=getCountryAndOperators&lang=en" | jq length to count the countries returned; read the catalogue response for the share of codes delivered to other users and the count of live numbers per service and country, where the README says these are measured. All steps.

Authorization notice. Skills is dual-use. Only use it on software, sites and systems you own or have explicit permission to test.

Who it is forAn operator who wants to confirm the catalogue covers a target country before committing an agent to a signup flow.

The problemChoosing a country with no working pool wastes time and money, and the README's coverage claim is one the user should be able to check.

The outcomeThe user gets a country count from the live catalogue and can see per-service and per-country pool data before ordering.

What you need first

  • An SV Number account with a funded balance, since the README says there is no free tier
  • An API key from your SV Number profile, exported as SVN_API_KEY
  • curl and jq, plus Python or Node.js if you run the bundled scripts
  • An agent runner that reads Agent Skills, such as Claude Code or Codex

Steps

  1. Run export SVN_API_KEY=your_key_here if the key is not already set.
  2. Run curl -s "https://sms-verification-number.com/stubs/handler_api?api_key=$SVN_API_KEY&action=getCountryAndOperators&lang=en" | jq length to count the countries returned. (inferred, check the README)
  3. Read the catalogue response for the share of codes delivered to other users and the count of live numbers per service and country, where the README says these are measured.
  4. Pick the country where the pool data shows live numbers and a delivery share that fits the service you need.

Prompt for your agent

Using the sv-number skill from the sv-number-skills repo, fetch the country catalogue and tell me how many countries it lists and which ones have live numbers for <service name>. Expected output: a country count and a short list. Verify that the count matches the jq length output before you recommend a country.

Caveat. The README says the delivery share is shown only where it is measured, so for other pairs you have only the size of the live pool to judge by.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for sv-number/skills and "Count live country coverage before choosing a number"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

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