The spendctl MCP server,
connected in one click.
Spend policy for AI agents that pay (x402, MPP). Login-free sandbox, real sidecar, no real funds. Connect the official spendctl MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add spendctl to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http spendctl https://mcp.spendctl.dev/mcpRun in your terminal, then restart Claude Code.
spendctl · https://mcp.spendctl.dev/mcp
What your AI can do with spendctl
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “sandbox_create”: Creates an isolated spendctl sandbox and returns its sandbox_id. Call it first: every other tool needs the sandbox_id, and one sandbox serve.”
“Use “sandbox_pay”: Fetches one of the sandbox's paid endpoints (HTTP 402, x402) through the spendctl sidecar, which applies the sandbox agent's budget, allowli.”
“Use “check_budget”: Shows the sandbox agent's spending limits, what has been spent in each window and what is left. Use it before a paid call when the remaining.”
“Use “list_receipts”: Lists the sandbox agent's most recent payment attempts, newest first: paid (amount and mock transaction hash), refused (reason codes) and wa.”
How secure is the spendctl MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how spendctl holds up.
Official endpoint
Operated by spendctl (spendctl.dev) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If spendctl adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick spendctl
Choose spendctl in the gate directory. No sign-in needed.
Use it anywhere
spendctl's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools spendctl exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
sandbox_create — Creates an isolated spendctl sandbox and returns its sandbox_id. Call it first: every other tool needs the sandbox_id, and one sandbox serve
sandbox_pay — Fetches one of the sandbox's paid endpoints (HTTP 402, x402) through the spendctl sidecar, which applies the sandbox agent's budget, allowli
check_budget — Shows the sandbox agent's spending limits, what has been spent in each window and what is left. Use it before a paid call when the remaining
list_receipts — Lists the sandbox agent's most recent payment attempts, newest first: paid (amount and mock transaction hash), refused (reason codes) and wa
get_policy — Returns the sandbox's spendctl.yaml as text: the preset name and the agent's budgets, allowed hosts and approval rules. Use it to explain wh
approve — Approves or denies a payment that sandbox_pay reported as waiting for approval, as the human approver would with `spendctl approve`. Use it
Who runs the spendctl MCP server?
The spendctl MCP server at a glance
https://mcp.spendctl.dev/mcpQuestions, answered
Is there an official spendctl MCP server?
Yes — spendctl operates its own remote MCP server at mcp.spendctl.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect spendctl to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick spendctl in the directory. No account or sign-in is needed. From then on, spendctl's tools are available in every client you've connected to gate.
Do I need to host anything?
No. spendctl runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the spendctl MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect spendctl in minutes. No credit card required.
Connect more than just spendctl
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up spendctl in: Claude · Claude Code · ChatGPT · Cursor · VS Code