Setting up Axiom is quick. By the end of this guide you'll have a card on file and a connected agent ready to place orders.
What you'll need
- An Axiom account (sign up at app.useaxiom.ai)
- An AI agent that supports MCP, like ChatGPT, Claude Desktop, or OpenClaw
- A debit or credit card to add
Step 1: Sign up and confirm your email
Create your Axiom account using your email. You'll get a confirmation link or 6-digit code by email. Click the link, or enter the code if you opened the email on another device, and you're signed in.
Step 2: Add your card
Add a debit or credit card in Settings, or at app.useaxiom.ai/setup. Axiom charges it for each order, for exactly the order total. There's no upfront deposit and no balance to manage.
Your spending rules control the maximum your agents can spend. If a purchase would exceed a rule, it's blocked before a card is even issued.
Step 3: Set your first spending rule
Before connecting an agent, set a basic spending rule. Go to Rules and configure:
- Daily limit: Start with something small, like $25/day
- Per-transaction limit: Try $15 to keep individual purchases in check
You can always adjust these later. The point is to have guardrails in place from the start.
Step 4: Connect your agent
Add Axiom to your agent, either from the ChatGPT plugin store or as a remote MCP connector using the URL https://mcp.useaxiom.ai/mcp, and allow it when your agent asks. Follow the dedicated guide for your agent: Connect ChatGPT, Connect Claude Desktop, or Connect OpenClaw.
Step 5: Make a test purchase
Ask your agent to buy something small. A $1 digital gift card works great. Watch the transaction appear in your Activity feed with the full audit trail.
That's it. Your agent just made a real purchase through Axiom.