OUR VISION
The capability layer for the agent era.
We're turning the world's software agent-native and BYOK — every AI capability usable by people, callable by agents, and publishable by developers. All on your own key, with zero markup.
What “bring your own key” means
BYOK = Bring Your Own Key. You plug in your own provider API key — OpenAI, Anthropic, Google, and more — and every product runs directly on it.
Get a key from any AI provider and paste it once. Kapus uses that key to run the products — nothing else.
In the app your key calls the model directly. Over the API it's passed per request.
Your provider bills inference at its raw rate. Kapus adds zero margin on top — we charge for the products, not the tokens.
One capability, three doors
A product is written once. Then it's three things at the same time.
Finished products — your key, no markup.
The same product as an API & MCP capability.
Add a capability to the library — reach every user and agent.
Why your key changes everything
You pay your provider for inference. We charge for the products — never a margin on top.
A layer that marks up inference is conflicted. Because we take zero margin, we can be the neutral library everyone trusts.
Who is it for
Every Kapus product, organized by who you are. Pick your line.
Subtitles, voiceover, writing, branding — the creator stack on your own key.
Copy, campaigns, branding, content — the marketing stack on your own key.
Product names, listings, reviews, global selling — on your own key.
Summarize, translate, chat with your sources — study faster on your own key.
Summaries, translation, email & docs — everyday work on your own key.
Local RAG over your docs, private MCP, team controls.
Where we are
BYOK products for people — Chat, subtitles, brand check, and more. Live.
Every product as an agent capability over MCP & API. Beta live.
Open the library so any developer can add capabilities.