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

# Callable and actionable procedures

> Invoke Effect procedures directly or adapt them to server action surfaces.

Effect procedures preserve oRPC's decorated procedure helpers.

## Callable procedures

Use `.callable()` to turn a procedure into a function while preserving the procedure surface.

```ts title="callable.ts" theme={null}
const getUser = effectProcedure
  .input(z.object({ id: z.string() }))
  .effect(function* ({ input }) {
    const usersRepo = yield* UsersRepo;
    return yield* usersRepo.findById(input.id);
  });

const callGetUser = getUser.callable();

const user = await callGetUser({ id: "1" });
```

Useful cases:

* examples
* tests
* scripts
* internal invocation without HTTP

## Actionable procedures

Use `.actionable(...)` where you already use oRPC's server action integration.

```ts title="actionable.ts" theme={null}
const createUserAction = effectProcedure
  .input(z.object({ name: z.string() }))
  .effect(function* ({ input }) {
    const usersRepo = yield* UsersRepo;
    return yield* usersRepo.create(input.name);
  })
  .actionable();
```

<Note>
  `effect-orpc` does not change the semantics of oRPC's callable or actionable
  helpers. It preserves the Effect-aware procedure metadata while forwarding to
  oRPC behavior.
</Note>

## Next step

Compose routers with [Router composition](/effect-v4/capabilities/router-composition).