Live runtime firewall · <50ms verdicts

The firewall
for AI agents.

Observability tells you what went wrong. Veto stops it before the damage lands.

A precision layer between autonomous decisions and real infrastructure, intercepting tool calls, scoring irreversible blast radius, and blocking the ones that shouldn't execute.

Early access

Engineers only. Onboarding is manual once Veto integrates with your runtime.

We never sell addresses. One confirmation message, then only important updates.

Live · intercepting
AGENT
LangChain
AGENT
AutoGen
AGENT
CrewAI
VETO
<50ms
Production DB
AWS / IAM
Stripe
File System
Three lines of code. Fully instrumented. Framework-agnostic.avg verdict latency 38ms
Architecture

Intercept every tool call. Decide before it's too late.

Risk scored across five dimensions
  • 01Destructiveness
  • 02Blast radius
  • 03Reversibility
  • 04Behavioral deviation
  • 05Chain coherence
Structured verdict
ALLOWinstant execution path
ESCALATEhuman-in-the-loop
BLOCKimmutable halt

Risky executions surface as a distilled incident card with chain-of-thought lineage, target systems, and blast radius deltas. Humans approve once; Veto learns the pattern protects the rest.

Structured audit trails stay export-ready without slowing shipping velocity.

Framework-agnostic
LangChainAutoGenCrewAIOpenAI Assistants

Drop-in guards for whichever orchestration runtime you shipped last quarter. Pure HTTP edge; your agents stay exactly where they are.

One autonomous slip
Away from outage.

We're onboarding design partners who want ruthless runtime guarantees without trading away agent velocity, say hello and we'll slot you intentionally.

Join the firewall waitlist

Direct line to founders · No automated nurture noise