> ## Documentation Index
> Fetch the complete documentation index at: https://docs.major.build/llms.txt
> Use this file to discover all available pages before exploring further.

# Connectors

> Databases, APIs, and storage your apps and agents connect to securely.

**Connectors** are the databases, APIs, and storage services your apps connect to. Major manages credentials securely so you never need to handle secrets in your code — requests are proxied through the Major platform, which attaches authentication and forwards them to the underlying resource.

<Tip>
  Credentials flow through the Major platform. Your app never sees connection strings or API keys.
</Tip>

## Generated clients

When you attach a connector, Major generates a client for it — one per resource, available at `src/clients/`. You don't wire up HTTP requests, authentication, or connection setup yourself; you import the client and call its `invoke` method.

Because the clients are generated from your attached resources, they're worth leaning on:

* **Type-safe** — full TypeScript support, so inputs and outputs are checked as you write against each resource.
* **Tailored per resource** — each connector type gets a client with an `invoke` signature specific to it, so a Postgres query and a Slack message each use the shape that fits.
* **No secrets in code** — authentication is handled by the platform, not your application.

<CardGroup cols={2}>
  <Card title="Resource Client" icon="box" href="/resource-client">
    Client generation, per-connector usage, and error handling.
  </Card>

  <Card title="Browse all connectors" icon="server" href="/connectors">
    Setup guides and client docs for every supported connector.
  </Card>
</CardGroup>