Ringfence your AI spend.

A self-hosted budget firewall for Claude Code and every other AI coding agent. Hard caps. Slack alerts. Prompts never leave your network.

Start freeGitHub

60-second install

curl ringfence.dev/install | bash. One binary, two ports, zero dependencies.

Privacy by design

Prompts and completions never leave your machine. Only token-count metadata syncs to the cloud, and only if you opt in.

Hard cutoff, not just dashboards

When the daily or monthly cap hits, the proxy returns 429. No more $3k weekend bills.

Multi-user, flat pricing

$29/mo for up to 5 devs. $99/mo unlimited. Per-seat pricing kills checkout — we don't do that.

Pricing

Flat tiers. No per-seat checkout friction.

Free

$0 /forever

  • Solo developer
  • Local proxy + dashboard
  • Hard caps + Slack-via-webhook (self-host)
  • Privacy: nothing leaves your machine
Start free
Most popular

Starter

£29 / $29 per month

  • Up to 5 developers
  • Cloud team dashboard
  • Slack budget alerts
  • Per-agent rollup + model breakdown
Choose Starter

Unlimited

£79 / $99 per month

  • Unlimited developers
  • Everything in Starter
  • SSO (next session)
  • Audit log (next session)
Choose Unlimited

Need something custom or self-hosted control plane? Contact us — $1.5k–3k/yr.

Try it now

curl -sSL https://ringfence.dev/install.sh | bash
export ANTHROPIC_BASE_URL=http://localhost:9000
# every Claude API call now goes through ringfence