mcp MCP

v0.1.6

dev.x402check/mcp

Preflight before paying any x402 tool (ok|caution|avoid + history). 1 free/wallet; then $0.01 Base.

transport:streamable-http runtime:npm tools:6

Website

Target client

run in your project directory

claude mcp add --transport http mcp https://x402check.dev/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs


                preflight_check

preflight check


                verify_payto

verify payto


                preflight_batch

preflight batch


                compare_tools

compare tools


                deep_check

deep check


                watch_tool

watch tool

All 6 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.

Secrets and scopes

The registry records which variables this server needs, not what privileges they must carry. Issue each one with the narrowest scope that works.

X402CHECK_URL

Runtime

Transport streamable-http

Registry npm

Package x402check-mcp

Version 0.1.6

Provenance Official registry

Package managers

npx npm pnpm yarn bun Homebrew apt Chocolatey winget conda

npx -y x402check-mcp

npm install -g x402check-mcp

pnpm dlx x402check-mcp

yarn dlx x402check-mcp

bunx x402check-mcp

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Registry record

Endpoint https://x402check.dev/mcp

Synced 2 h ago

JSON API /api/v0/servers/dev.x402check/mcp