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x402 SMS

Pay-per-call MCP server.

Connector by UltraStarz · GitHub account verified by the MCP Registry

IndexedLicense unknownLocal (stdio)
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Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/ultrastarz-x402-sms

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
0 read · 1 write · 0 delete
Secrets
1 (API keys, tokens or passwords)
Install scripts
Not scanned yet
Runs as
Node.js package

Tools by what they do 1

Read from the source code; the running server may list different tools.

Write 1 · Create, change, send or run things.

  • send_sms

Secrets and settings it asks for

Secrets: values you paste in that let it act as you.

  • BUYER_PRIVATE_KEY

Tools (1)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • send_sms

    Send one transactional SMS message to a US phone number. Costs $0.03 USDC per message, paid automatically from the configured wallet on Base Sepolia (testnet during beta, will flip to Base mainnet at launch). Messages are sent from a Twilio toll-free number and automatically get 'Reply STOP to opt out' appended if not already present. CRITICAL — only call this tool when ALL of the following are true: (1) the user has explicitly asked to text someone, or has previously set up an automation that texts; (2) the recipient is the user themselves OR someone the user has confirmed has consented to re…

Signals

Stars
0
Forks
0
Open issues
1
Last commit
Oct 6, 2026 (23 days ago)
Last release
May 15, 2026 (5 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name
io.github.UltraStarz/x402-sms
Version
0.1.0
Auth
API key
Packages
npm x402-sms-mcp
License
License unknown
Repository
github.com/UltraStarz/x402-sms-mcp
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
Official MCP Registrygithub-graphql

More from UltraStarz

Cite this page

x402 SMS MCP server. Agent Mart. https://agentmart.dev/connectors/ultrastarz-x402-sms (last updated 2026-10-24)