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@scriptmasterlabs/mcp-x402

v2.1.11

Published

SCRIPTMASTERLABS x402 Gateway: read-only discovery of x402 paid APIs and fresh payment requirements on Base. Caller controls authorization and spending.

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

timothywaltontimothywalton

Keywords

scriptmasterlabsx402x402-v2mcpmodel-context-protocolpaid-api-discoverypayment-requirementsagent-commercepay-per-callusdcbasemachine-paymentsai-agentsmcp-server

Readme

@scriptmasterlabs/mcp-x402

The SCRIPTMASTERLABS x402 Gateway for MCP clients and AI agents.

One job: read-only discovery of x402 paid APIs and inspection of fresh payment requirements before a caller decides whether to authorize payment.

Public contract

This npm package exposes exactly three read-only tools:

  • sml_discover
  • sml_status
  • x402_contract

It does not provision wallets, sign transactions, move funds, choose a facilitator, execute transfers, manage credit, or spend autonomously.

Install

npx @scriptmasterlabs/mcp-x402

Canonical remote MCP

https://mcp-x402.onrender.com/mcp

Current payment authority

  • Protocol: x402 v2
  • Network: Base mainnet (eip155:8453)
  • Asset: USDC
  • Canonical SML payTo: 0xc29185fa176357612f3194735753e520e91adc46
  • Challenge header: PAYMENT-REQUIRED
  • Caller-authorized request header: PAYMENT-SIGNATURE

Always read the selected resource's fresh HTTP 402 challenge before any payment decision. A 402 challenge, cached README, directory listing, or signature is not settlement proof.

Supersession notice

2.1.11 is the current canonical public package release. Historical npm metadata from 2.1.3 describing RLUSD/XRPL, Solana, 402Proof, Ghost Layer, autonomous wallets, auto-spend, credit-bureau behavior, or a broad trading/federal tool suite is obsolete and must not be treated as current SCRIPTMASTERLABS x402 Gateway authority.

Current authority is this release, the GitLab source below, and fresh runtime/payment-resource responses. Search-engine or registry caches can lag publication.

Source: https://gitlab.com/timothy.walton45/sml-portfolio/-/tree/main/mcp-x402/npm-public

License: MIT.