DOCUMENTS / FELTKIT

Build with the contracts that power your app.

Start locally, then learn how FeltDB, AppPort, and AppPort Services fit together in one application workflow.

01 / QUICKSTART

Run FeltKit locally.

Create a project, install its dependencies, and start the local development server.

Local development

$npm create feltkit@latest my-app$cd my-app$npm install$npm run dev

Needs Node 20 or later. Deployment selects an environment, not a different version of your application code.

02 / PACKAGE REFERENCE

Each package keeps its own responsibility and contract while FeltKit composes them for your application.

DURABLE STATE

Durable application state for an environment, shared by functions, services, and activity.

CAPABILITIES

Publishes, authorizes, and dispatches capabilities for applications and agents.

REUSABLE SERVICES

Eight reusable services—files, notifications, configuration, API keys, webhooks, jobs, schedules, and model selection—authorized and evidenced.

03 / SYSTEM BOUNDARIES

Keep state, capabilities, and integrations explicit instead of hiding them behind one opaque runtime.

01 / STATE

Stores durable state for the application environment.

02 / CAPABILITIES

Defines and authorizes the actions available to apps and agents.

03 / SERVICES

Runs reusable services on the application's own FeltDB instance, through explicit contracts.