Health

Liveness for both chain sides; 503 when a configured side failed to boot.

Authorization

X-API-Key<token>

Developer-portal API key (tp_live_… / tp_test_…), also accepted as Authorization: Bearer tp_….

In: header

curl -X GET "https://example.com/health"

Empty

Key Change Webhook (Engine) POST

Service-only: the monolith reports an API key was enabled or disabled; the engine re-pulls its key snapshot.

OpenAPI Document GET