Egoist Machines (YC S26) — Your personal context, securely portable across every AI app
Egoist Machines is building the user-owned context layer that will be the unlock for the next generation of consumer AI applications. Our product, AI Passport, lets people carry the personal context they generate in everyday apps into any new product, so it understands them from the first interaction.
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What it does Your personal context, securely portable across every AI app (source)
Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
Egoist Machines is building the user-owned context layer that will be the unlock for the next generation of consumer AI applications. Our product, AI Passport, lets people carry the personal context they generate in everyday apps into any new product, so it understands them from the first interaction. Tell ChatGPT something and Claude already knows, for example, without any app ever owning your data.
The bottleneck for consumer AI is shifting from the model to context. Models can already handle most everyday tasks for the average user, but every new app starts cold, forcing users to re-explain themselves and forcing businesses to rebuild profiles of data that already exist.
Apps integrate with a "Sign in with AI Passport" button, then request specific information for a stated purpose and duration. Users stay in control of what moves between products and can revoke access later, which matters most for sensitive health and financial context. Under the hood, AI Passport runs on our own vector database built for fast, compact per-user memory with cryptographically enforced access control.
We're building first-party apps that give people a reason to create their Passport today, while integrating it into consumer products with existing audiences of billions.
Our North Star: your context living on your own device, sovereign to you, with every model, app, and agent coming to you.
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Read from the page's own HTML and response headers on 10 September 2026, at https://ego.ist/. Each badge matched a string the site serves about itself — hover one to see which. Nothing here is a traffic, ranking or revenue figure: those cannot be read off a page and are not claimed.
Checked away from the directory entry. What is below does not come from the company's Y Combinator page.
Personal context layer for carrying your preferences, history, and identity across the AI apps you use.
The title and description the site itself served, answering 200. Not a cached copy and not the company's directory entry — what was live when we asked.
Erin McGurk
Founder/CEO
Co-founder & CEO of Egoist Machines (YC S26). Grew 0 to 1M+ followers in a year (@erinmerylstudy) and scaled a social enterprise reaching millions. Advised Cambridge and the UK Government on social media strategy. BA (Uni of Cambridge), Land Economy (Economics + Law). Focused on privacy, and social + legal infrastructure.
David Khachaturov
Founder/CTO
Founder at Egoist Machines (YC S26). BA/MA (Uni of Cambridge), MSc (Uni of Oxford), PhD (Uni of Cambridge) in Computer Science. Youngest-ever Fellow at St Catharine's College, Cambridge at 25. Previously ML Researcher at OpenAI (PaperBench), Lead AI Security Researcher at FrontierOne. Founded and scaled mazette! (game publisher, 10-title portfolio). Cambridge CS supervisor for 8+ courses, taught 160+ supervision groups and mentored 19 dissertations.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
Want the whole picture on Egoist Machines?
Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
A Full Report on Egoist Machines: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Egoist Machines covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
8 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
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Egoist Machines (YC S26) — Your personal context, securely portable across every AI app. MentionFox, 2026-10-10. https://mentionfox.com/funding/yc-egoist-machines
