Pricing
The MCP server is free forever. Upgrade for postflight_check, Playbook, and unlimited specs.
Free
$0
Forever
✓
All 6 MCP tools
✓
Codebase context (load_context)
✓
Doom loop detection
✓
Session handoffs
✓
Git hook auto-refresh
✓
10 preflight_check calls/month
✓
10 postflight_check calls/month
✓
1 workspace
No API key needed for core features. Add a key to unlock Pro features.
Get started freePro
$19
/month
Per user
✓
Everything in Free
✓
Unlimited preflight_check
✓
Unlimited postflight_check
— guardrail violation detection
— sensitive data scanning
— spec compliance checking
— scope creep detection
— SAFE/REVIEW/BLOCK verdict
✓
Playbook ("How We Build Here")
— loaded before every task
— verified after every task
✓
Unlimited specs
✓
Privacy mode (AGENTBRAIN_PRIVACY_MODE=true)
Team
$49
/seat/month
✓
Everything in Pro
✓
GitHub Action (postflight_check on every PR)
✓
Merge blocking (BLOCK verdict = PR blocked)
✓
Shared team Playbook
✓
Analytics dashboard
(guardrail blocks, doom loops, postflight verdicts over time)
✓
Unlimited workspaces
✓
Team members
✓
Priority support
The MCP server is free forever. No API key needed. No usage limits. Works with Cursor, Windsurf, Claude Code, Claude Desktop, and VS Code. You only pay for postflight_check, Playbook, and team features.
Frequently Asked Questions
Is the MCP server really free?
Yes. All 6 MCP tools work without an API key or account. load_context, detect_doom_loop, save_handoff, and load_spec (with API key) are free. preflight_check and postflight_check include 10 free calls/month each.
What is postflight_check?
The core Pro feature. Run it after your agent codes to verify the output before merging. It checks for guardrail violations, missing tests, spec compliance, and scope creep. Returns SAFE, REVIEW, or BLOCK. Your merge gate for AI-generated code.
What is the Playbook?
One document that defines how your team builds. Fill it out once at useagentbrain.com/playbook. preflight_check loads it before every task. postflight_check uses it to verify every task. Covers folder conventions, patterns, protected files, test requirements, and tech decisions.
Do I need an API key?
No. Core features work without one. Add an API key to unlock postflight_check, Playbook, and unlimited specs.
Can I use AgentBrain with multiple agents?
Yes. The same MCP config works with Cursor, Windsurf, Claude Code, Claude Desktop, and VS Code. Context files are stored locally in your repo and work across all agents.
What happens to my data if I cancel?
All local context files stay in your repo forever. Cloud specs and Playbook become read-only but remain accessible for 30 days. Export them before canceling if needed.
Do you offer refunds?
Yes. Full refund within 30 days if you're not satisfied. No questions asked.