# Fetch a specific Service.

**GET /v1/Services/{Sid}**

Fetch a specific Service.


## Servers
- https://proxy.twilio.com: https://proxy.twilio.com ()


## Authentication methods
- Account sid auth token


## Parameters

### Path parameters
- **Sid** (string)
  The Twilio-provided string that uniquely identifies the Service resource to fetch.



## Responses
### 200
OK
#### Headers
- **Access-Control-Allow-Origin** (string)
  Specify the origin(s) allowed to access the resource
- **Access-Control-Allow-Methods** (string)
  Specify the HTTP methods allowed when accessing the resource
- **Access-Control-Allow-Headers** (string)
  Specify the headers allowed when accessing the resource
- **Access-Control-Allow-Credentials** (boolean)
  Indicates whether the browser should include credentials
- **Access-Control-Expose-Headers** (string)
  Headers exposed to the client

#### Body: application/json (object)
- **sid** (string | null)
  The unique string that we created to identify the Service resource.
- **unique_name** (string | null)
  An application-defined string that uniquely identifies the resource. This value must be 191 characters or fewer in length and be unique. Supports UTF-8 characters. **This value should not have PII.**
- **account_sid** (string | null)
  The SID of the [Account](https://www.twilio.com/docs/iam/api/account) that created the Service resource.
- **chat_instance_sid** (string | null)
  The SID of the Chat Service Instance managed by Proxy Service. The Chat Service enables Proxy to forward SMS and channel messages to this chat instance. This is a one-to-one relationship.
- **callback_url** (string(uri) | null)
  The URL we call when the interaction status changes.
- **default_ttl** (integer)
  The default `ttl` value for Sessions created in the Service. The TTL (time to live) is measured in seconds after the Session's last create or last Interaction. The default value of `0` indicates an unlimited Session length. You can override a Session's default TTL value by setting its `ttl` value.
- **number_selection_behavior** (string)
  The preference for Proxy Number selection in the Service instance. Can be: `prefer-sticky` or `avoid-sticky`. `prefer-sticky` means that we will try and select the same Proxy Number for a given participant if they have previous [Sessions](https://www.twilio.com/docs/proxy/api/session), but we will not fail if that Proxy Number cannot be used.  `avoid-sticky` means that we will try to use different Proxy Numbers as long as that is possible within a given pool rather than try and use a previously assigned number.
- **geo_match_level** (string)
  Where a proxy number must be located relative to the participant identifier. Can be: `country`, `area-code`, or `extended-area-code`. The default value is `country` and more specific areas than `country` are only available in North America.
- **intercept_callback_url** (string(uri) | null)
  The URL we call on each interaction. If we receive a 403 status, we block the interaction; otherwise the interaction continues.
- **out_of_session_callback_url** (string(uri) | null)
  The URL we call when an inbound call or SMS action occurs on a closed or non-existent Session. If your server (or a Twilio [function](https://www.twilio.com/en-us/serverless/functions)) responds with valid [TwiML](https://www.twilio.com/docs/voice/twiml), we will process it. This means it is possible, for example, to play a message for a call, send an automated text message response, or redirect a call to another Phone Number. See [Out-of-Session Callback Response Guide](https://www.twilio.com/docs/proxy/out-session-callback-response-guide) for more information.
- **date_created** (string(date-time) | null)
  The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time in GMT when the resource was created.
- **date_updated** (string(date-time) | null)
  The [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date and time in GMT when the resource was last updated.
- **url** (string(uri) | null)
  The absolute URL of the Service resource.
- **links** (object(uri-map) | null)
  The URLs of resources related to the Service.


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