unbrowse

Seed Round · Confidential

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Seed Round · Confidential

Unbrowse

The browser for AI agents.

100x faster.90% cheaper.

Chrome built the browser for humans.

Google indexed the human web.

Unbrowse does the same for the agentic internet.

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The Shift

The internet is about to get its biggest new user base.

Not humans. AI agents.

Billions of agents - booking flights, placing orders, pulling data - are being deployed right now. The web was never built for them.

100M+AI agents (2027)
1B+Human-first websites
95%Undocumented APIs
The Problem

Agents can think.
They can't browse.

Every approach today is fundamentally broken. No one has solved reliable, fast, scalable web access for agents - because the solutions all attack the wrong layer.

Computer Use

Screenshots + click coordinates

✕30–60s per action
✕Breaks on any UI change
✕$0.10+ per page load
✕Can't scale past demos

Like hiring someone to read your screen to you

Web Scraping

Parse HTML into structured data

✕Breaks when HTML changes
✕Blocked by anti-bot
✕No auth handling
✕Constant maintenance

A never-ending game of whack-a-mole

MCP Servers

Hand-built integrations per site

✕Each site needs its own server
✕Months to build each one
✕Doesn't cover the long tail
✕1B+ sites, ~50 MCP servers

Will never reach 1% of the web

What agents actually need: direct API access to any website, in <500ms, at infinite scale.

That requires building a new kind of browser from scratch. That's what we did.

100x faster. 90% cheaper. Websites get paid.

The Insight

Every website already has an API.
You just can't see it.

Twitter, Airbnb, Shopee - they are all frontends calling internal APIs. The data is there. The endpoints exist. They are just hidden behind a UI.

What humans see
For you
Following
Sam Altman@sama·2h

the thing i am most excited about right now is the rate at which AI agents are starting to actually work

1.2K
847
24K
2.1M
Pieter Levels@levelsio·4h

built an AI agent to monitor my 40 projects and it keeps trying to scrape sites but gets blocked everywhere lol

342
1.5K
8.9K
892K
What agents see today
<html lang="en">
<head>
<meta charset="utf-8"/>
<link rel="stylesheet" href="/css/bun...
<script src="/js/main.ae92f1.js">
</head>
<body>
<div id="react-root">
<div class="css-175oi2r r-1...
<div class="css-175oi2r r-k...
<div data-testid="tweet">
<div class="css-146c3p1 r-...
<span dir="ltr" class="css...
<div class="css-175oi2r r-...
<div role="group" class="c...
<div class="css-175oi2r r-...
<div class="css-175oi2r r-...
<div data-testid="cellInner...
...
4,847 DOM nodes · 12.4s parse time
What Unbrowse sees
GET /2/timeline/home
{
"tweets": [{
"id": "1893...",
"text": "...",
"author": "sama",
"metrics": {...}
}]
}
GET /2/user/by/username
{
"user": {
"followers": 3241892,
"verified": true
}
}
POST /2/tweets/search
{
"results": [...],
"next_cursor": "a8f..."
}
4 endpoints · ~200ms · structured JSON
100x
faster
API calls vs. clicking through UI
90%
cheaper
~1K tokens vs. 10K+ per page

Same data. No rendering. No parsing. Just the API.

The Product

Browser + search engine + knowledge graph

for the agentic web

Discover

Point at any URL. Unbrowse reverse-engineers internal APIs - endpoints, auth, data schemas - automatically.

Execute

Agents call APIs directly through the browser engine. Authentic TLS fingerprints. No bot detection.

Learn & Share

Every discovery becomes a reusable "skill." Published to a marketplace. The index grows with every use.

The value isn't just the tool - it's the knowledge graph.

In Practice

What agents can do
with Unbrowse

Every website has hidden APIs powering its frontend. Unbrowse finds them and gives agents direct access.

LinkedIn
Without Unbrowse
✕Computer Use: 45s per profile load
✕Scraper: Breaks every 2 weeks
✕Official API: $0.03/call, rate limited
With Unbrowse
✓Direct API access in <200ms
✓Search, message, scrape profiles
✓Zero maintenance, auto-heals
Shopify Storefront
Without Unbrowse
✕Headless browser: 12s page render
✕Scraper: Can't handle dynamic pricing
✕No public API for competitor data
With Unbrowse
✓Product, pricing, inventory endpoints
✓Real-time stock and price monitoring
✓Works across any Shopify store
Twitter / X
Without Unbrowse
✕Official API: $100/mo, limited access
✕Scraper: Blocked within hours
✕Computer Use: 30s per timeline load
With Unbrowse
✓Full timeline, search, post via internal APIs
✓All engagement metrics included
✓Fraction of the cost, no rate limits
Network Effects

The flywheel that becomes
the moat.

Every agent that uses Unbrowse makes the network smarter. 95% of APIs are undocumented and undiscovered. We're building the index, and the index gets better with every query.

01
Agents Use Unbrowse
Every query generates signal
02
APIs Auto-Discovered
95% of the web is unmapped
03
Integrations Multiply
Each discovery unlocks new use cases
04
More Agents Join
Better coverage attracts adoption
compounds with every cycle
Data compounds

Every agent interaction enriches our API map. Competitors start from zero.

Switching cost

Agents build workflows on our endpoints. Migration means rewriting integrations.

Winner-take-most

The best API index attracts the most agents, which makes the index better. Second place is irrelevant.

Google indexed the human web by crawling it. We're indexing the agentic web by using it.

Business Model

Websites deserve to be
compensated fairly.

A flood of AI agents is about to hit every endpoint on the internet. Websites don't hate scraping — they hate not getting paid for it. We fix that.

Today's reality
✕Agents scrape websites with zero compensation
✕Websites fight back with bot detection & rate limits
✕Everyone loses: agents break, websites burn resources
✕Legal grey area blocks commercial scale
With Unbrowse
✓Every API call triggers a micropayment to the website
✓Websites opt in and get paid per endpoint hit
✓Agents get reliable, fast, legal access
✓Still 90% cheaper than browser-based approaches

The math that makes everyone win

$0.10
Browser agent per page
10K+ tokens consumed
$0.01
Unbrowse per API call
~1K tokens, direct JSON
$$$
Revenue to website owners
Via x402 micropayments

Marketplace economics

Phase 1: Free & Open

Open-source core. Free API discovery. Build the index, build adoption. No monetization of third-party endpoints without consent.

Phase 2: Monetized Graph

Websites opt in to the payment layer. Agents pay per API call. Unbrowse takes a platform cut. Like Stripe for the agentic web.

Traction

3 weeks since launch.
Already compounding.

0
npm installs (30 days)
0
Installs last 7 days
v0.7
11 releases in 3 weeks
Feb 2
First public release

Distribution is the product

Marketplace Skills

Every skill on Claude MCP, Langchain, CrewAI installs Unbrowse as a dependency

Zero-CAC growth

Open Source Gravity

MIT-licensed core. Developers adopt freely, then need the hosted graph for production

Bottom-up adoption

Agent Framework Partners

Pre-integrated with major agent frameworks. When they grow, we grow

Embedded distribution

Future Plans

Complementary infrastructure partnership in progress

UpRock
DePIN Infrastructure

Decentralized proxy network with 216K+ nodes. $4M raised from Animoca Brands, Borderless Capital, Draper Dragon.

Unbrowse discovers the APIs. UpRock's distributed network executes them at scale without getting blocked.

Complementary Distribution
Brain+Legs
We discover APIs, they route requests through real devices
Skills+Nodes
Our skill marketplace distributes to their 216K+ user base
Intelligence+Infrastructure
Together: unblockable, intelligent web access for agents
Market

Every AI agent will need a browser.
That's the market.

$47B
AI agent market by 2030
$200B+
Web data & API economy

Horizontal infrastructure

Not vertical SaaS. Every agent framework, every use case.

Network effects

Each mapped website makes the platform more valuable for all users.

Winner-take-most

The richest knowledge graph wins. First-mover builds an insurmountable data moat.

The Ask

Seed Round
$3M

Seed round

40%
Engineering
30%
Growth
30%
Infra
NOW
Open Source
NEAR
Marketplace
MID
Hosted API
LONG
The Graph

The browser was the gateway to the human internet.
Unbrowse is the gateway to the agentic internet.

unbrowse.ailewis@getfoundry.app
Seed Round · Confidential