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

# Get a User — Shilo API Reference

> Retrieve a single user by Shilo UUID or your external user ID. Supports id:uuid and external_user_id: prefix patterns for flexible cross-system lookup.

Use this endpoint to retrieve a single user (agent) record from your Shilo organization. You can identify the user with their Shilo UUID, a prefixed UUID, or your own external user ID — whatever aligns with your integration's data model. This flexibility means you never need to maintain a separate mapping table between your system and Shilo to look up agents.

## Endpoint

```
GET https://api.shilo.ai/api/v1/users/{identifier}
```

## Authentication

Include your API key in the request header:

```
x-api-key: YOUR_API_KEY
```

## Path Parameters

<ParamField path="identifier" type="string" required>
  The identifier used to look up the user. Three formats are supported:

  | Format              | Example                                   |
  | ------------------- | ----------------------------------------- |
  | Plain Shilo UUID    | `ee6f2136-b94a-4438-9335-3acf5b2a0d31`    |
  | Prefixed Shilo UUID | `id:ee6f2136-b94a-4438-9335-3acf5b2a0d31` |
  | External user ID    | `external_user_id:agent-1`                |
</ParamField>

## Response

A successful request returns HTTP `200` with a User object.

### Response Fields

<ResponseField name="id" type="string">
  The Shilo-assigned UUID for this user.
</ResponseField>

<ResponseField name="external_user_id" type="string">
  The user ID from your external system.
</ResponseField>

<ResponseField name="name" type="string">
  Full display name of the user.
</ResponseField>

<ResponseField name="email" type="string">
  Primary email address of the user.
</ResponseField>

<ResponseField name="timezone" type="string">
  The user's configured timezone in IANA format (e.g. `America/New_York`).
</ResponseField>

<ResponseField name="picture" type="string">
  URL of the user's profile picture, if set.
</ResponseField>

<ResponseField name="created_date" type="string">
  ISO-8601 timestamp indicating when this user was created in Shilo.
</ResponseField>

### Example Response

```json theme={null}
{
  "id": "ee6f2136-b94a-4438-9335-3acf5b2a0d31",
  "external_user_id": "agent-1",
  "name": "Alex User",
  "email": "alex@example.com",
  "timezone": "America/New_York",
  "picture": "https://cdn.shilo.ai/avatars/ee6f2136.png",
  "created_date": "2024-01-15T09:00:00Z"
}
```

## Error Codes

| Status | Meaning                                             |
| ------ | --------------------------------------------------- |
| `400`  | The identifier format is invalid or malformed.      |
| `404`  | No user was found matching the provided identifier. |

## Example Requests

### Look up by plain Shilo UUID

```bash theme={null}
curl -X GET "https://api.shilo.ai/api/v1/users/ee6f2136-b94a-4438-9335-3acf5b2a0d31" \
  -H "x-api-key: YOUR_API_KEY"
```

### Look up by prefixed Shilo UUID

```bash theme={null}
curl -X GET "https://api.shilo.ai/api/v1/users/id:ee6f2136-b94a-4438-9335-3acf5b2a0d31" \
  -H "x-api-key: YOUR_API_KEY"
```

### Look up by external user ID

```bash theme={null}
curl -X GET "https://api.shilo.ai/api/v1/users/external_user_id:agent-1" \
  -H "x-api-key: YOUR_API_KEY"
```