NOCTIS

Premium engineering for AI, Web3, and verifiable systems.

A small studio building tools for the systems we trust.

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Products

Tools we ship.

spectr-ai: paste a deployed contract address or drop a Solidity file for an instant AI audit report.

spectr-ai

Live

AI smart contract security auditor. Analyzes Solidity and Vyper. Runs locally via Ollama or in the cloud via Claude.

Free tier
3 audits/day
Pro
$29/mo
Open spectr-ai →
Argus intercepting a signing request: unlimited USDC approval flagged CRITICAL with a plain-English explanation.

Argus

Live

AI-powered transaction firewall for crypto wallets. Intercepts wallet signing, decodes what the transaction actually does, and explains the risk in plain language before you approve. Live on the Chrome Web Store.

Free tier
10 AI checks/day, no API key
Pro
$9/mo
Get Argus on Chrome →
Scry: paste a contract address, pick a chain, and ask questions in plain English.

Scry

Live

See into any EVM smart contract in plain English. Reads verified ABIs, reconstructs unverified contracts from bytecode, and resolves proxies automatically.

Chains
Ethereum · Base · Arbitrum · Polygon · Optimism · Sepolia
Models
Claude · Ollama
Open Scry →
Argus Lens: paste a GitHub repo URL and get a static malware verdict without running anything.

Argus Lens

Live

Static malware scanner for public GitHub repos. Detects build-time code execution, supply-chain typosquats, and freshly-published malicious npm packages, without cloning, installing, or running the code. Ships as a web app, Chrome extension, and VS Code extension.

Web app
lens.noctis.biz
VS Code
Marketplace
Chrome
Chrome Web Store
Open Argus Lens →
Track record

Claims are cheap in security. These link to their sources.

Full verification ledger on the founder's portfolio →

Writing

Two newsletters, two audiences.

The Codex

A biweekly notebook on AI, smart contracts, and the systems we trust. For founders, CTOs, and engineers building serious software.

Read on LinkedIn →

After Hello World

A weekly newsletter for developers entering the AI field. What a senior engineer wishes they had been told.

Subscribe on LinkedIn →
The founder

A studio of one, on purpose.

Pavel Espitia is a senior engineer based in Medellín, shipping production software since 2009: first for banks, airlines and energy companies, places where failure is expensive, and since 2018, Web3 protocols. Contract systems he architected were taken through independent audits by STATEMIND, QuillAudits and storming0x.

Noctis exists because the systems we trust, wallets, contracts, the code we are asked to run, deserve tools built with an attacker's imagination and an auditor's discipline. Every product above came from a real problem, twice from real attacks aimed at the founder himself.

Full background and CV →

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Putting contracts on mainnet? Building with AI?

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