Industry · Developer platforms
A backend for every app your users build.
App builders and coding platforms create a project for each user prompt. Give each one its own database, files and vault in milliseconds, and let users remix it with a fork.
How it fits
Built from the primitives you already get.
A group per project
Create a group with the databases, filesystems, vaults, KV stores and object storage a generated app needs, as many of each as it wants.
Remix with a fork
Fork a project's database or filesystem so a user can branch off someone else's app without touching the original.
Free when abandoned
Most generated projects go quiet. Idle primitives cost storage only, so the long tail stays cheap.
User keys, never leaked
Store each user's third-party API keys as secrets in a vault. The agent uses them by reference and can't print them into generated code.
Build
Local-first development.
Build and test on your machine with the open-source engine. No cloud account needed: every primitive runs locally, with the same API as the cloud.
Install the CLI, then run primitives dev. Quickstart
Open source
Built in the open. Contribute freely.
The SDKs, the MCP server and the single-node engine are open source and actively maintained. Submit PRs, report issues, improve docs, or just star the repo to show support.
useprimitives/primitivesFork, star, or open a pull request