# x402-sms-mcp

> x402-sms-mcp — ultrastarz-x402-sms-mcp. Use this tool when you need to send SMS messages to US phone numbers, and you want a compliant and automated solution for handling opt-outs and micropayments. It enables AI agents to integrate SMS capabilities into their workflows, solving communication and notification challenges. The tool accepts x402 micropayments as input and sends SMS messages as output, making it suitable for applications requiring secure and reliable messaging.

Canonical page: https://skillsregistry.net/skills/ultrastarz-x402-sms-mcp  
JSON: https://api.skillsregistry.net/v1/skills/ultrastarz-x402-sms-mcp

## Description

A paid MCP server that lets AI agents send SMS messages to US phone numbers via x402 micropayments, with automatic compliance and opt-out handling.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-29

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-08-29

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/etb77k2eoa)
- **Repository:** <https://github.com/UltraStarz/x402-sms-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "ultrastarz-x402-sms-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/ultrastarz-x402-sms-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/ultrastarz-x402-sms-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt