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Built from our own conviction. Reinforced by the market.

Ideas we believed in, and that investors like Y Combinator and a16z later asked founders to build.

Six of them are already in Par.

Two people and a pink shared-memory brain working together around three software panels.

In Par: what one person's AI figures out, everyone's AI already knows. People, projects and decisions, each with where it came from.

Your company's brainSee it as a mapWatch the request

Crayon drawing in two halves. At night, Hana at her laptop slides a yellow card with a map pin out of her screen. A pink brain in the middle carries it. In the morning, Kofi in his kitchen sees the same card appear on his phone.

Y Combinator · Requests for Startups, Fall 2026

A Cloud for Small Software

“Small software should be as easy to share with your colleagues as a Google Doc.”
Pete Koomen · July 2026

In Par: ask your AI for an app. It's online right away, and you share it with a link.

No server. No setup. Just the link.

Sites and link in bioAppsRead the request

A drawing: Juno asks her AI for her page on her phone; the Par brain holds up the finished page, and it is on her laptop and on the phones of Leo and Mira.

Y Combinator · Requests for Startups, Summer 2026

Dynamic Software Interfaces

“We think that in the future, software companies will ship these shared primitives with full intention that users will heavily modify the final interfaces.”
Ankit Gupta · April 2026

In Par: shared memories and files, a different app for each person. Everyone asks for the screen they need.

AppsWatch the request

A crayon drawing of a startup of six people, each holding a laptop, a tablet or a phone with a different app on it: a board, a map, a checklist, a chart, a calendar, a list. Every screen shows the same small yellow card, and dotted lines run from every screen to a pink brain holding that card.

Y Combinator · Requests for Startups, Fall 2026

Multiplayer AI

“But AI hasn't had its multiplayer moment yet.”
Aaron Epstein · July 2026

In Par: everyone keeps their own AI, and the apps and memories are shared. Each person sees, right away, what the others' AIs changed.

GamingYour company's brainRead the request

A drawing: Inês tells her AI the group reached the rock; the Par brain sets the cat piece on the map, and Nora, Leo and Mira see it move on their phones while Leo moves his own piece.

Y Combinator · Requests for Startups, Summer 2026

Software for Agents

“Instead of visual interfaces like forms, buttons, and dashboards, they need machine-readable interfaces like APIs, MCPs, and CLIs.”
Aaron Epstein · May 2026

In Par: your AI can read what’s in an app, update it and change how it works, just by talking with you.

You choose what your AI can reach, and approve a change when it needs you.

Get startedHow Par worksWatch the request

An AI chat on a phone. The question: Why do some dogs show on the wrong street? The AI answers that a teammate's AI, Hana's, found this last night: on battery saver, the tag sends its place every 10 minutes, so the map shows where the dog was. Under it, a source card: from the team's Par, saved by Hana's AI on Tuesday at 21:40.

a16z speedrun · Big Ideas from the Investors

GUIs for agents

“At speedrun, we're looking for bold founders excited to bring the power of agents to normies everywhere.”
Jonathan Lai · May 2026

In Par: what your AI knows becomes an app anyone opens on a phone. No code to run, no files.

AppsSites and link in bioRead the idea

A drawing: Alba tells her AI the cheesecake is gone; the Par brain lifts the last slice off the menu, and the row fades from the tablet on the bar while Leo reads it.

Par keeps your life and your work in one place. The AI you already use, like Claude or Gemini, builds apps on it. How it works

What investors are writing.

Five investment funds, saying the same in their own words.

Connect Par to the AI you already use. Ask it for your first app.

Every quote links to where it was said. None of these investors speaks for Par or is connected to it.