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

# Retrieve webhook

> Retrieves a webhook.

GET/webhooks/\{token}

Retrieves a webhook.

> [!NOTE]
>
> **Note**\
> As shown in the example, `config.secret`, `config.basic_auth_username`, and `config.basic_auth_password` are masked in responses to this and all other requests. To ensure that you can access these values as needed, update them on your endpoint, store them securely, and then [update the webhook subscription](https://www.marqeta.com/docs/core-api/webhooks/update-webhook.md).

## URL path parameters

| Fields | Description |
| - | - |
| token string  Required | Unique identifier of the webhook. **Allowable Values:**  Existing webhook token |

## Response body

| Fields | Description |
| - | - |
| active boolean  Conditionally returned | Indicates whether the webhook is active. This field is returned if you included it in your webhook. **Allowable Values:**  `true`, `false` |
| config object  Returned | Contains the configuration information for the webhook. **Allowable Values:**  `basic_auth_password`, `basic_auth_username`, `custom_header`, `secret`, `url`, `use_mtls` |
| config.**basic\_auth\_password** string  Returned | Password for accessing your webhook endpoint. **Allowable Values:**  12 chars  The first character of the password, followed by 10 asterisks and the last character of the password. |
| config.**basic\_auth\_username** string  Returned | Username for accessing your webhook endpoint. **Allowable Values:**  12 chars  The first character of the username, followed by 10 asterisks and the last character of the username. |
| config.**custom\_header** object  Conditionally returned | Custom headers to be passed along with the request. **Allowable Values:**  Up to three name-value pairs: 500 char max per name, 500 char max per value |
| config.**secret** string  Conditionally returned | Randomly chosen string used for implementing HMAC-SHA1 or HMAC-SHA256, depending on the value included in the `signature_algorithm` field. A signature provides an added layer of security by authenticating the message and validating message integrity. Using this functionality requires that your webhook endpoint verify the message signature. For information about implementing this functionality, see [Signature Verification](https://www.marqeta.com/docs/developer-guides/signature-verification.md). **Allowable Values:**  12 chars  The first character of the secret, followed by 10 asterisks and the last character of the secret. |
| config.**signature\_algorithm** string  Conditionally returned | Algorithm used for signature verification. A signature provides an added layer of security by authenticating the message and validating message integrity. Using this functionality requires that your webhook endpoint verify the message signature. For information about implementing this functionality, see [Signature Verification](https://www.marqeta.com/docs/developer-guides/signature-verification.md). **Allowable Values:**  1–20 chars  - Value must be either `HMAC_SHA_1` (legacy) or `HMAC_SHA_256` (recommended).  - You must specify this value if `secret` is specified. |
| config.**url** string  Returned | URL of your webhook endpoint. **Allowable Values:**  1–255 chars  - Must be HTTPS  - Empty string not allowed |
| config.**use\_mtls** boolean  Conditionally returned | Set to `true` to use use mutual transport layer security (mTLS) authentication for the webhook. mTLS authentication is in the beta testing phase, and is not yet generally available. Contact your Marqeta representative for more information about using mTLS authentication. **Allowable Values:**  `true`, `false` |
| created\_time datetime  Conditionally returned | Date and time when the webhook event was created, in UTC. **Allowable Values:**  datetime **Format:** yyyy-MM-ddThh:mm:ssZ |
| events array of strings  Returned | Specifies the event types that trigger notifications. Use the wildcard character `*` to subscribe to all webhook notifications or all notifications within a specific category. For example, `transaction.*` . **Note:** The wildcard character does not return L2 and L3 card data events. **Note:** Use the wildcard character only with the base type events (`cardtransition.*`) not subcategories (`cardtransition.fulfillment.*`). **Allowable Values:**  For a comprehensive list of events, see [Event Types](https://www.marqeta.com/docs/core-api/event-types.md). |
| last\_modified\_time datetime  Conditionally returned | Date and time when the associated object was last modified, in UTC. **Allowable Values:**  datetime **Format:** yyyy-MM-ddThh:mm:ssZ |
| name string  Returned | Descriptive name of the webhook. **Allowable Values:**  1–64 chars |
| token string  Conditionally returned | Unique identifier of the webhook. **Allowable Values:**  1–36 chars |


## Related topics

- [Webhooks Overview](https://www.marqeta.com/docs/core-api/webhooks.md)
- [List webhooks](https://www.marqeta.com/docs/core-api/webhooks/list-webhooks.md)
- [About Webhooks](https://www.marqeta.com/docs/developer-guides/about-webhooks.md)
- [Ping webhook](https://www.marqeta.com/docs/core-api/webhooks/ping.md)
- [Update webhook](https://www.marqeta.com/docs/core-api/webhooks/update-webhook.md)