spendctl for Claude.ai

dev.spendctl/spendctl

Spend policy for AI agents that pay (x402, MPP). Login-free sandbox, real sidecar, no real funds.

client:Claude.ai transport:streamable-http tools:8

Install spendctl in Claude.ai

Settings → Connectors → Add custom connector

https://mcp.spendctl.dev/mcp

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

sandbox_create
sandbox_pay
await_approval
withdraw_approval
check_budget
list_receipts
get_policy
approve

spendctl in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

spendctl MCP server