Instant Query Blocking
Your application or AI agent is one malformed query away from dropping a production table. Safe Boundary intercepts every SQL statement at the proxy layer, before it reaches the database, and blocks destructive operations in under 1 millisecond, with zero changes to your application code.
Blocks what your database won't
stop by default
DROP, TRUNCATE, unbounded DELETE and UPDATE, DDL mutations, and known SQL injection patterns are intercepted at the wire level. The database sees only the queries that are explicitly permitted by your policy.
Most engines have no built-in concept of "this DELETE is too dangerous to run." Once a connection holds the right role, a missing WHERE clause, a careless DROP, or a known injection pattern will execute without complaint. Safe Boundary fills that gap at the wire level: structurally dangerous statements are rejected with a clear error before they ever touch your data.
Policy-based, not hardcoded
Every rule is configurable. Define severity levels, warn, block, or block-and-alert, per query pattern, per identity, per environment. A rule that blocks unbounded DELETEs in production can be set to warn-only in staging.
One-line rule presets
Block DROP, TRUNCATE and unbounded DELETE or UPDATE with a single rule. Presets ship for the most common destructive patterns, so the first policy is live in minutes, not quarters.
Scope per identity
Scope rules per application, environment, or user. An analytics agent can read everything. A support bot never reaches billing. A migration script only touches its own tables. You decide, at the SQL layer.
Auditable and dry-runnable
Every decision is explainable. Every block is logged. Every policy is versioned. Dry-run new rules against historical traffic to measure impact before enforcement, so nothing ships on a guess.
Roll new rules out gradually with warn-only mode, watch the audit log fill with would-have blocked events, and flip to enforce when you are confident.
Sub-1ms overhead, drop-in deployment
Safe Boundary adds less than 1 millisecond of latency to the query path. Deployment requires only a connection string port change, no application code changes, no database extensions, no schema migrations.
Connection-string drop-in
Drop in at the connection-string layer. No sidecars, no schema changes, no driver patches. Point your application at the proxy and traffic starts flowing, with policy enforced from the very first query.
Learn moreMicrosecond overhead
Single-digit microsecond overhead per query on typical workloads. Queries that pass policy are forwarded unmodified at wire speed; your tail latencies stay exactly where you left them.
Learn moreStateless and horizontally scalable
Horizontally scalable and stateless. Run one replica next to your database or a fleet behind a load balancer, policy decisions are deterministic, so it doesn't matter which node handles the query.
Learn moreObservability out of the box
Ships with Prometheus metrics, structured audit logs, and an OpenTelemetry exporter. Hook it into your existing observability stack without writing a single line of glue code.
Learn more
Works across applications
and AI agents
The same blocking policy applies whether the query originates from a human engineer, a batch service, or an autonomous AI agent. Identity context is carried through the proxy and attached to every block event in the audit log.
One enforcement path
Same enforcement path for every caller. LLM agent, background job, internal dashboard, or ad-hoc psql session.
Wire-protocol native
Language- and framework-agnostic. Anything that speaks the PostgreSQL, Oracle, SQL Server, or MySQL wire protocol is protected automatically.
Replicas and primaries
Applies equally to read replicas and primaries. The proxy inspects and enforces without duplicating or caching data.
Caught before execution
Destructive intent is caught before execution. Rewrites preserve the agent’s goal while removing the blast radius.
Start blocking destructive queries today,
connect Safe Boundary to your database
in minutes.
Free for 1 database. No credit. No Time limit. Full AI SQL Injection prevention.