Link your personal card in 60 seconds. Set unbreakable spending limits. Let your agent buy, book, and build autonomously. No LLC. No $25k bank balance. No business account required.
Everything your agent needs to spend safely, nothing it doesn't.
No new card, no pre-funding, no wallet to manage. Connect the card you already have and start in 60 seconds.
Daily/weekly caps, merchant allow/deny lists, category blocks, conditional rules. "Only buy if price < $50 and rating > 4 stars."
Your agent never sees a real card number. Every transaction gets a scoped, single-use token that enforces your rules server-side.
Works with Claude Desktop, custom agents, and terminal workflows. One command: cardrail --info.
Instant alerts on every transaction. See what your agent is spending in real time. One click to freeze everything.
Every transaction logged and synced to Slack, Notion, or email. Complete visibility, zero surprises. You always stay in control.
Link any personal Visa or Mastercard. Privacy.com + Stripe Issuing under the hood.
Name it, set spending rules, merchant restrictions, and conditional logic.
Your agent requests a token via MCP, API, or CLI when it needs to spend.
CardRail validates rules, issues a one-time token, and logs everything.
CardRail exists because AI agents shouldn't need a business license to buy a $12 domain. The future of autonomous commerce starts with one rule: the human always stays in control.