# `PhoenixKit.Integrations.Providers`
[🔗](https://github.com/BeamLabEU/phoenix_kit/blob/v1.7.102/lib/phoenix_kit/integrations/providers.ex#L1)

Registry of known integration providers.

Each provider definition describes how to connect to an external service:
what auth type it uses, what fields the admin needs to fill in, and
how to validate the connection.

Providers are defined in code, not in the database. New providers are
added here as needed. External modules can also contribute providers
via the `integration_providers/0` callback on `PhoenixKit.Module`.

# `auth_type`

```elixir
@type auth_type() :: :oauth2 | :api_key | :key_secret | :bot_token | :credentials
```

# `provider`

```elixir
@type provider() :: %{
  key: String.t(),
  name: String.t(),
  description: String.t(),
  icon: String.t(),
  auth_type: auth_type(),
  oauth_config: map() | nil,
  setup_fields: [setup_field()],
  capabilities: [atom()]
}
```

# `setup_field`

```elixir
@type setup_field() :: %{
  key: String.t(),
  label: String.t(),
  type: :text | :password | :textarea | :number | :select,
  required: boolean(),
  placeholder: String.t(),
  help: String.t() | nil,
  options: [%{value: String.t(), label: String.t()}] | nil
}
```

# `all`

```elixir
@spec all() :: [provider()]
```

Returns all known providers, including those contributed by external modules.

Results are cached in `persistent_term` after the first call.
Call `clear_cache/0` if modules are added or removed at runtime.

# `clear_cache`

```elixir
@spec clear_cache() :: :ok
```

Clears the cached provider list and used-by map.

Call this when modules are added or removed at runtime so the next
call to `all/0` or `used_by_modules/0` recomputes from the module registry.

# `get`

```elixir
@spec get(String.t()) :: provider() | nil
```

Look up a single provider by key.

Accepts both plain keys (`"google"`) and named keys (`"google:personal"`) —
the name is stripped before lookup since provider definitions are per-type.

# `used_by_modules`

```elixir
@spec used_by_modules() :: %{required(String.t()) => [String.t()]}
```

Returns a map of provider_key => [module_name] showing which modules use each integration.

---

*Consult [api-reference.md](api-reference.md) for complete listing*