Now open · 3 founding slots
10-DAY AI AGENT SECURITY AUDIT
Find where your agents can be broken before attackers do. Fixed fee, with a prioritized P0–P3 fix plan.
Product Engineering Studio / Founder-Led
ENGINEERING FOR SYSTEMS THAT CAN'T AFFORD TO BREAK.
Antanox is a small studio run by one senior engineer. I build my own products, publish what I learn, and hold your system to the same standard.
From the lab · Private beta
ORITHOS
Our open adversarial probe library for AI agents. 124 public probes mapped to OWASP LLM 2025, MITRE ATLAS and NIST AI RMF.
01 Restraint · 02 Precision · 03 Authority · 04 Depth
Small by design. Deep by default.
01 / The Entry Offer
START WITH A FIXED-FEE AUDIT.
Ten working days, read-only access under NDA, and a severity-ranked report (P0–P3) you can execute with any team — including your own. Run by the engineer who built Orithos.
Founding rate — first three engagements
$3,000
Fixed fee. In exchange: a testimonial and permission to publish an anonymized case study.
Standard rate — after the founding slots
from $6,000
The published rate. USD, invoiced 50% upfront and 50% on report delivery.
FIXED SCOPE · UP TO THREE SERVICES · 50% UPFRONT / 50% ON DELIVERY · 50% OF THE FEE CREDITED TOWARD A FOLLOW-ON BUILD
02 / Technology studio
WE BUILD YOURS TOO.
01 / AI & AGENTS
AI AGENT ENGINEERING
Agentic systems engineered to be inspected: guardrails, evaluations, and a bounded blast radius.
02 / SYSTEMS & INFRA
SYSTEMS ENGINEERING
Architecture, infrastructure and backend systems designed for complexity without unnecessary weight.
03 / MONEY & LEDGERS
FINTECH SYSTEMS
Ledger engines and reconciliation for platforms where a single dropped transaction is not an option.
03 / Product lab
WE BUILD OUR OWN SYSTEMS TOO.
ORITHOS — AI SECURITY PLATFORM
Our flagship AI security platform. Built to test the behavior and boundaries of AI systems before attackers do. Public probe catalog on GitHub, a published red-team report, and a private beta in progress. The exact same engineering standards apply to your project.
PRIVATE BETA
124 PROBE DEFINITIONS
OWASP LLM 2025 · MITRE ATLAS · NIST AI RMF
04 / Selected work
BUILT IN PUBLIC.
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01 / ORITHOS — AI SECURITY PLATFORMLIVE SYSTEM ↗PRODUCT / AI / SECURITY
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02 / ORITHOS RED-TEAM REPORTREAD THE REPORT ↗SECURITY RESEARCH / PUBLISHED
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03 / ORITHOS PROBE CATALOGOPEN ON GITHUB ↗124 ADVERSARIAL PROBES / OPEN SOURCE
05 / Founder
"I built Antanox because I was tired of agencies that treat engineering as a commodity. I treat it as a craft. When you work with Antanox, you don't get a revolving door of junior developers — you get the engineer who built Orithos, on your project, from first call to final handoff."
Nishant Khurana
FOUNDER & LEAD ENGINEER — LINKEDIN ↗
FOUNDER & LEAD ENGINEER — LINKEDIN ↗
06 / Start something
HAVE SOMETHING DIFFICULT?
Whether you are preparing for high-volume transactions or securing autonomous AI agent pipelines, speak directly with the engineer who built Orithos.