The potential of AI, made operational.

Efficacious builds the mechanisms that carry the work of AI into the real world, and keep it running there.

What we make

Live now

Apphaven

Where the apps an AI agent builds live. A person describes what they need to the agent they already use; Apphaven gives the result a home, with sign-in, a database, email and a console, and the agent keeps looking after it.

How we work

Rigor above.: An agent is only as good as what it can count on. We build the parts that have to be right every time.
Capability within.: Everything we ship is made to be driven by an agent and run by a person, with no engineer between them.
Plain words.: If a thing can't be explained to the person paying for it, it isn't finished.

Get in touch

Partnerships, press, or a problem you think an agent should be solving. We read everything and reply ourselves.