Vexa
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作者提供的说明(英文原文)
Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.
这三项永远不会合并成一个分数:意见、测量和人气是不同的东西。
我们还没有为它写通俗的介绍。下面是我们从注册中心读取到的事实。
选择你使用的 AI 应用,然后复制设置。
BUYER_PRIVATE_KEY标为机密的值是你账户的钥匙。千万不要分享给别人,也不要粘贴到聊天里。
你需要
你用的是哪个应用?
在上方选择你的应用。我们会记住它,下次按钮会显示“安装到 …”。
打开 Claude Desktop → Settings → Developer → Edit Config,把下面的内容粘贴到 claude_desktop_config.json
{
"mcpServers": {
"x402-sms": {
"command": "npx",
"args": [
"-y",
"x402-sms-mcp"
],
"env": {
"BUYER_PRIVATE_KEY": "your-value"
}
}
}
}在终端中运行这条命令
claude mcp add x402-sms --env BUYER_PRIVATE_KEY=your-value -- npx -y x402-sms-mcp运行前请先填写空着的值。
粘贴到项目中的 .cursor/mcp.json,或 ~/.cursor/mcp.json
{
"mcpServers": {
"x402-sms": {
"command": "npx",
"args": [
"-y",
"x402-sms-mcp"
],
"env": {
"BUYER_PRIVATE_KEY": "your-value"
}
}
}
}浏览器会先询问是否打开应用,然后应用会显示设置并请你确认。密钥的值会留空,由你自己填写。
粘贴到项目中的 .vscode/mcp.json
{
"servers": {
"x402-sms": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"x402-sms-mcp"
],
"env": {
"BUYER_PRIVATE_KEY": "your-value"
}
}
}
}浏览器会先询问是否打开应用,然后应用会显示设置并请你确认。密钥的值会留空,由你自己填写。
这个服务器在你的电脑上运行,而 ChatGPT 只能连接互联网上的服务器。请选择其他应用。
你的选择通过 Cookie 保存在这台设备上,无需账户。
这些设置是根据作者在注册中心的条目生成的。如果 README 的写法不同,请以 README 为准。
它在你的电脑上运行;安装后,工具列表会显示在你的 AI 应用中。
我们检查的是任何人都能看到的信息;我们没有阅读代码。不适用的检查项不计入总数。 · 检查于 2026年11月10日
注册名称已通过 GitHub 账户 UltraStarz 验证,该账户拥有此仓库
我们还没有从 GitHub 读取这个仓库
我们还没有从 GitHub 读取这个仓库
它在你的电脑上运行,没有互联网端点
在你的电脑上运行,改用本地设置
它在你的电脑上运行;我们只能读取互联网端点的工具列表
与注册中心里这个分类中所有活跃的服务器比较。只有当发布者拥有该仓库时,星标数才计入。
它在 1 项适用的基础检查中通过了 1 项。我们没有阅读代码。在添加密钥或令牌之前,请先看看这个服务器要求哪些权限,并使用只具备所需权限的密钥。
你需要填写:BUYER_PRIVATE_KEY
它在你的电脑上运行。你的 AI 应用会在需要时启动它,数据不会经过作者的服务器(除非它自己调用在线服务)。
GitHub 仓库最后更新于–,最新版本(0.1.0)于6个月前进入注册中心。
支持 MCP 的应用,例如 Claude Desktop、Claude Code、Cursor 和 VS Code。你的电脑上还需要有 Node.js。
同一分类中有:Vexa, emailmd, MCP WhatsApp Cloud
同一分类中其他作者的服务器,按星标数排序。
如何看卡片:↓ 每周下载量i★ GitHub 星标i三大支柱:评价 · 检查 · 使用情况i更新 = 最新版本发布到注册中心的时间i
Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API
按原文从作者的仓库复制。PopNx MCP 没有审查或背书其内容。HTML、图片和脚本已被移除。链接会离开本站。
A paid MCP server that lets AI agents send SMS messages to US phone numbers.
Each send_sms tool call:
Reply STOP to opt out if the body doesn't include opt-out languageNo API keys. No Twilio account. The agent pays the toll, the message goes out.
Status (2026-05-22): Public beta on Base Sepolia (testnet). The seller's toll-free number is undergoing Twilio TFV approval (submitted 2026-05-14, still in queue). During this window
/sendcalls short-circuit to a503 delivery_pending_tfv_approvalresponse before the buyer wallet signs anything, so no USDC is moved. The day Twilio approves the number, delivery flips on; pricing flips to Base mainnet shortly after.
Add this to your MCP config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):
{
"mcpServers": { "x402-sms": { "command": "npx", "args": ["-y", "x402-sms-mcp"], "env": { "BUYER_PRIVATE_KEY": "0xYOUR_PRIVATE_KEY" } } } }
Restart your MCP client. A send_sms tool will appear.
A wallet on Base Sepolia (testnet) funded with:
Generate a throwaway key:
node -e "const {generatePrivateKey,privateKeyToAccount}=require('viem/accounts');const k=generatePrivateKey();console.log('PRIVATE_KEY=',k);console.log('ADDRESS=',privateKeyToAccount(k).address)"
Use the printed address to claim from faucets, then put the printed key into your MCP config.
In Claude Desktop, ask:
Text my cell at +15551234567 when this long-running task finishes. The recipient (me) consents to receive this message.
Claude will call send_sms with opt_in_attestation: true. You'll get back a Twilio SID + the on-chain settlement hash. The transfer is visible at https://sepolia.basescan.org.
This MCP wraps a regulated SMS gateway. The operator (you) is responsible for ensuring every recipient has consented to receive messages before invoking send_sms. The opt_in_attestation: true argument is your legal attestation under TCPA and CTIA short-code/long-code rules.
Do NOT use this MCP to:
+1 E.164)The seller-side automatically:
Reply STOP to opt out to every messageIf you have any doubt about consent, do not call this tool.
| Env var | Required | Default |
|---|---|---|
BUYER_PRIVATE_KEY | yes | — |
SMS_URL | no | https://x402-sms-server-production.up.railway.app/send |
To point the MCP server at your own seller deployment, override SMS_URL.
The MCP surfaces three distinct error shapes so the model can explain what happened to the user and decide whether to retry.
| Cause | What you'll see in chat | Was payment taken? |
|---|---|---|
Seller's toll-free number still in TFV review (HTTP 503) | "SMS not sent — service is in pre-launch wait" + the seller's submitted date and retry guidance | no |
Buyer wallet exceeded per-minute/hour/day rate limit (HTTP 429) | "SMS not sent — this buyer wallet hit the per-X rate limit" + retry_after_seconds | no |
Twilio-side rejection (e.g. invalid number 21211, opted-out 21610) | Friendly hint mapped from the Twilio error code + the full response body | yes (the send tried) |
For the full mapping of Twilio error codes the MCP recognizes, see TWILIO_HINTS in src/index.ts.
Claude Desktop ──tool call──> MCP server (this package, on your machine)
│ │ x402 payment (USDC, Base Sepolia) │ + to/message/opt_in_attestation ▼ Public seller (Hono + Twilio on Railway) │ │ Twilio dispatch ▼ SMS lands on recipient's phone │ │ Twilio SID + status ▼ MCP server ──tool result──> Claude Desktop
The MCP server doesn't talk to Twilio directly. It signs an x402 payment with the buyer's wallet, sends the payment + message details to the seller endpoint, and the seller's toll-free number dispatches the SMS. Your private key never leaves your machine. The seller never sees it.
MIT