spendctl sandbox MCP server 0.1.0

Connect https://mcp.spendctl.dev/mcp (Streamable HTTP, no login) from Claude, Claude Code, Cursor or VS Code.
A real spendctl sidecar with a throwaway wallet and mock paid APIs: budgets, refusals, approvals, receipts. No real funds.
Docs: https://spendctl.dev/docs/sandbox/