Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.
X402-sms is an MCP integration. Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.
The published npm package is x402-sms-mcp, version 0.1.0. Its declared MCP transport is stdio.
The package declares BUYER_PRIVATE_KEY (required): Ethereum private key for the buyer wallet that pays the per-call USDC fee..
Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.
View the publisher’s registry entry · Project repository. This profile uses version 0.1.0 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.
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| Variable | Description | Required |
|---|---|---|
| BUYER_PRIVATE_KEY | Ethereum private key for the buyer wallet that pays the per-call USDC fee. | Yes |
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