Anthropic's assistant, via MCP

Use SimpleSMS with Claude.SMS, phone verification, and real numbers, as capabilities.

Connect the SimpleSMS MCP server and Claude can send texts, run phone verification, and buy numbers as native tool calls, no glue code.

1. Connect the MCP server

SimpleSMS speaks Model Context Protocol. Add this to Claude's MCP configuration and messages, verification, numbers, and lookup become tool calls:

{
  "mcpServers": {
    "simplesms": {
      "url": "https://mcp.joinsimplesms.com",
      "headers": { "Authorization": "Bearer ssms_sk_test_YOUR_KEY" }
    }
  }
}

Discovery: /.well-known/mcp.json

2. Install the skills

Three SKILL.md files teach Claude the API, the verification rules, and SMS compliance, so it writes correct integration code the first time:

curl -sSL https://joinsimplesms.com/skills/install.sh | sh

simplesms · simplesms-verify · sms-best-practices

3. Ask for the feature

A prompt like this now resolves against the real API, with a sandbox key that simulates everything and costs nothing:

Add phone verification to signup using SimpleSMS Verify
(POST /v1/verify, then /v1/verify/check). Docs:
https://joinsimplesms.com/docs/verify.md

Everything Claude needs is machine-readable: an OpenAPI spec, markdown twins of every docs page, and a single-file llms.txt of the whole documentation set.

/llms.txt
/api/v1/openapi.yaml
/docs/llms-full.txt

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