Open-source engine
Free under MIT, in your terminal, hooks and CI. Inspects the worktree, runs the gates and keeps the receipt.
Your agent declares a change. Mind API returns the gates it must pass.
Declare the change class and any risk modifiers. The response names every gate that change owes and the policy revision behind them.
curl https://headron.tech/api/mind/plan \
-H "Authorization: Bearer $MIND_API_KEY" \
-H "Content-Type: application/json" \
-d '{"change_class": "api_change",
"risk_modifiers": ["auth_boundary"]}'
{
"change_class": "api_change",
"risk_modifiers": ["auth_boundary"],
"required_gates": [
"formatter",
"compiler_or_typechecker",
"unit_tests",
"schema_validation",
"contract_tests",
"endpoint_tests",
"compatibility_check",
"authorization_tests",
"session_invalidation_test",
"codeql",
"secret_scan"
],
"policy_revision": "310225fb7219aafe7ecf98c4e51d12d37249fc49",
"scope": "Plan from caller declarations only; no project inspected and no gates run."
}
Seven change classes, from source_change to security_sensitive. Eleven risk modifiers, from auth_boundary to schema_migration. Each modifier adds the gates its risk owes.
A plan is not proof. Mind reads your declaration only: it does not inspect repositories or run checks. Your tools run the gates, and the engine keeps the receipt.
Point any MCP client at https://headron.tech/mcp. It serves public documentation to everyone and Mind planning to authenticated agents, inside the tool loop.
The open-source MCP server adds discovery for your own project.
$10 a month, billed monthly. Cancel anytime in your account; access runs through the paid period.
Generate a key in your account and copy the secret once. Keep it in your password manager or environment. Each request sends it in the Authorization header; Headron forwards it to Clerk to check entitlement and does not store it.
Key lost or leaked? Revoke it and generate a replacement.
The engine proves the change. Mind API tells the agent what to prove.
Free under MIT, in your terminal, hooks and CI. Inspects the worktree, runs the gates and keeps the receipt.
Hosted planning over REST and MCP. One policy revision for every agent, with nothing to install.
Claude Code, Cursor, Codex and OpenHands read their gates inside the tool loop.
Created in your account and copied once. Headron does not store them. Revoke and replace anytime.