Optimize for coherence
An agent should understand the whole app and its cloud without crossing seven vendor boundaries.
Tarantula Systems
We are building a cloud for small software.
Tarantula is a developer cloud for personal apps, internal tools, and operational agents built by coding agents, usually for one person or one team.
Why now
Coding agents made bespoke software cheap. The remaining cost is turning generated code into something people can safely keep and share.
Personal apps, team tools, and narrow operational systems do not need the service catalogs designed for software serving millions of users.
They need a complete default: hosting, data, identity, files, workers, agent runs, company connections, and one permission model.
YC named the category. Our bet is that small software becomes far more valuable when it can keep working safely through durable operational agents and company-scoped tools.
Read the YC request for startupsBig clouds optimize for software serving millions.
Small software needs a complete default and far fewer concepts.
What we believe
Small software changes what a cloud should optimize for.
Make sharing fundamental
A private app should be as easy to share with a teammate as a document.
Treat code as untrusted
Agent-built apps start isolated and receive only explicit people, data, network, and tool access.
Let software keep working
Operational agents belong inside the app when the job requires judgment, tools, or human approval.
What we are building
A complete cloud with fewer concepts.
Private alpha
Bring us one useful app your team should already have.
We are seeking a small set of technical design partners for internal tools and operational-agent systems.
Email hello@tarantula.build Tell us the app, who uses it, what recurring work it should do, and which company systems it must access. Security reports: security@tarantula.build.