TACK

PRICING

Free where it scores. Paid where it remembers.

Runtime risk scoring for AI agent tool calls, priced honestly. tack-guard is the free, MIT-licensed SDK that scores every tool call locally in under 1ms. Tack Cloud is a paid layer on top that gives those scores a memory across restarts, sessions, and agents. The guard never costs a cent; only the hosted memory does.

Last updated June 17, 2026

tack-guard

FREE · MIT

The open-source SDK. Drops into any agent and scores every call locally — no account, no network, no cost.

$0 forever
  • 8 weighted signals, scored 0 → 1
  • 4 attack patterns: credential-creep, data-exfiltration, smash-and-grab, behavioral-drift
  • Stateless signatures
  • Multi-agent isolation
  • Zero runtime dependencies, <1ms inline
  • warn / enforce / score-only modes
  • MCP wrapper
  • Works with LangChain, OpenAI, Anthropic, MCP

Tack Cloud

COMING SOON

Hosted memory and correlation. The baseline that survives restarts and ties behavior together across every agent.

Pricing at launch no fake numbers

Everything in tack-guard, plus:

  • Persistent baselines (survive restarts, redeploys, replicas)
  • Cross-session detection (24h / 72h / 7d windows)
  • Cross-agent baselines — catches agentId-splitting persistent baselines
  • Dashboard & timeline later
  • Alerts (email, webhook, Slack) later
  • LLM analyst (plain-language forensics) later

HONEST PRICING

Why there's no Cloud price yet.

Tack Cloud is in active development. We would rather ship it and price it against real usage than post a number we made up. The guard is free and MIT today, so you can start now at zero cost; Cloud's simple paid pricing lands at launch, informed by what early users actually run. tack-guard stays free forever either way.

  • tack-guard: $0, MIT, zero dependencies
  • Cloud: paid layer, priced at launch
  • No fake numbers, no bait pricing
Follow for launch See the Cloud roadmap tack-guard ships first. Cloud follows.

FAQ

Pricing, answered.

Why no Cloud price yet?
Tack Cloud is in development; we'll set simple pricing at launch informed by real usage — no fake numbers.
Will tack-guard ever be paywalled?
No. tack-guard stays free and MIT forever; Cloud is a separate paid layer on top.
What does Cloud cost the free guard?
Nothing — scoring stays local and <1ms; Cloud is async, off the hot path.