Your AI.
Your Data.
Your Control.

Contexteer lets you share local knowledge with AI and trusted peers over a direct peer-to-peer network — with fine-grained control over every word, sentence, and file. No cloud. No compromise.

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Desktop Mobile Server (coming)CLI (coming)
0ms
Cloud round-trips
everything runs on your device
100%
Data ownership
nothing leaves without your permission
< 1s
Semantic search
over thousands of documents
Any
AI model
Ollama, Claude, GPT, Gemini
The Problem

AI context is broken

Every tool that connects your files to an AI model sends that data to a remote server. You lose ownership the moment you press send.

☁️

Your data leaves your device

Cloud AI services receive a copy of every document, query, and response. There's no control over how that data is stored, shared, or used.

🔒

No fine-grained control

You can share a file, or not. You cannot share only some paragraphs, redact financial figures, or apply time-limited access policies.

Slow and costly at scale

Re-uploading large document sets on every session burns time and money. Latency compounds when every AI interaction round-trips to a remote server.

A tale of two architectures

Cloud AI — today
Your Device
Internet
☁️Cloud Server
Internet
You
~2–4s latency
⚠ Data copied to cloud⚠ No content-level control⚠ Paid per request
Contexteer — direct P2P
Your Device
Peer Device
~50ms
✓ Data stays on your device✓ Paragraph-level control✓ No cloud cost
Why Contexteer

Intelligence without compromise

We built Contexteer on a simple belief: your data should never leave your control to be useful to an AI.

Zero-trust by design

Cryptographic identity, no central server. Every peer connection is direct.

Instant, always-indexed

Files are indexed once, locally. Semantic search responds in milliseconds without re-uploading.

Paragraph-level permissions

Redact keywords, block sensitive patterns, or write policies in plain English — enforced by AI.

Read and write

Peers can not only query your context — they can write back with full access control.

The Opportunity

The $50B context layer no one owns

As AI assistants become embedded in every workflow, the question of who controls the context becomes the most important question in enterprise software.

Today, that context flows through a handful of cloud providers. Contexteer is building the infrastructure for a world where organizations own their AI context — with sovereign control, no vendor lock-in, and sub-second performance.

Explore the technology
Context-as-a-Service market
by 2028
$50B+
Enterprise data never safely sharable with AI
of enterprise documents
73%
Cost reduction vs cloud AI context
for on-device processing
~80%
Latency improvement vs cloud round-trip
for local queries
40–80×

Ready to take back control?

We're working with early enterprise partners and investors. Tell us about your use case.

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