Skip to contentx402-sms MCP Server — Install for Claude, Cursor & VS Code | MCPpediaXx402-sms MCP Server
Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.
45FairInstall
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"ultrastarz-x402-sms-mcp": {
"command": "npx",
"args": [
"-y",
"x402-sms-mcp@0.1.0"
],
"env": {
"BUYER_PRIVATE_KEY": "YOUR_BUYER_PRIVATE_KEY"
}
}
}
}
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Environment
| Name | Required | Notes |
|---|
| BUYER_PRIVATE_KEY | Yes | Ethereum private key for the buyer wallet that pays the per-call USDC fee. Secret. |
Tools show up when the registry metadata or the repository README lists them. GitHub enrichment fills this in when a token is configured.
About
Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.
FAQ
- What is x402-sms?
- Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.
- How do I install x402-sms?
- Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.
- Is x402-sms official?
- No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.
- How is the trust score calculated?
- This listing scores 45 (Fair). The formula is published on the methodology page.
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