PG Circuit

PG Circuit
Runtime protection for PostgreSQL · A circuit breaker that runs inside Postgres

Website · Docs · Pricing · Open source (Community)

PG Circuit is a PostgreSQL circuit breaker and runtime protection extension. It scores risky SQL against live locks, replication lag, and database pressure, then ALLOW, WARN, or BLOCK — so production stays safe from:

• DELETE / UPDATE without WHERE
• TRUNCATE / DROP
• Destructive DDL under pressure

Unlike migration linters or proxies, PG Circuit runs inside PostgreSQL and sees live database state.

Only Community (pg-circuit) is open source. Pro and Cloud ship via pgcircuit.com — their source stays private.

pg-circuit — Community Circuit breaker for production PostgreSQL. Native extension · deterministic risk · observe / warn / enforce. postgresql · circuit-breaker · database-security · sql-guardrails

DELETE FROM users;
-- ERROR: PG Circuit blocked high-risk operation (Risk: 95/100)

• Website: pgcircuit.com
• Docs / quick start: pgcircuit.com/docs
• Pro & Cloud: pricing · sales
• Packaging & install: PACKAGING.md
• Contact: hello@pgcircuit.com

_{Keywords: PostgreSQL extension · Postgres circuit breaker · SQL guardrails · query firewall · runtime protection · destructive query protection · database safety · SRE · DBA tooling}