Install X402 Sms in Claude Code
claude mcp add x402-sms -e BUYER_PRIVATE_KEY=... -- npx -y x402-sms-mcp{
"mcpServers": {
"x402-sms": {
"command": "npx",
"args": [
"-y",
"x402-sms-mcp"
],
"env": {
"BUYER_PRIVATE_KEY": "..."
}
}
}
}Replace each ... with your own value.
Frequently asked questions
What does the X402 Sms MCP server do?
Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.
Is the X402 Sms MCP server free?
Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.
Does X402 Sms run locally or remotely?
Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.
How do I add X402 Sms to Claude Code?
Run: claude mcp add x402-sms -e BUYER_PRIVATE_KEY=... -- npx -y x402-sms-mcp
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