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## Resource: Add reCAPTCHA to a Custom Login Page (REST)
## Article: Add reCAPTCHA to a Custom Login Page (REST)
## Article Link: https://dev.wix.com/docs/go-headless/authentication/members/custom-login-page/re-captcha/add-re-captcha-to-a-custom-login-page-rest.md
## Article Content:
# Add reCAPTCHA to a Custom Login Page (REST)
This article explains how to implement [reCAPTCHA](https://dev.wix.com/docs/go-headless/authentication/members/custom-login-page/re-captcha/about-re-captcha.md) with member authentication using the REST API.
You'll learn how to:
- Implement reCAPTCHA using a 3rd party.
- Use reCAPTCHA tokens during register and login.
## Step 1 | Implement reCAPTCHA using a 3rd party
Use a 3rd-party library like [Google reCAPTCHA](https://www.google.com/recaptcha/admin/create) to implement the reCAPTCHA or choose to implement it yourself using [Google's APIs](https://cloud.google.com/recaptcha-enterprise/docs/apis).
You can choose to always require reCAPTCHA verification or only require it for suspected bots.
- To always require reCAPTCHA verification, use a visible site key when loading the reCAPTCHA script.
- To only require reCAPTCHA verification for suspected bots, use an invisible site key when loading the reCAPTCHA script.
**Important:** When implementing a reCAPTCHA:
- Use a Wix site key, not your own, when loading the reCAPTCHA script.
- **Visible site key**: `'6Ld0J8IcAAAAANyrnxzrRlX1xrrdXsOmsepUYosy'`
- **Invisible site key**: `'6LdoPaUfAAAAAJphvHoUoOob7mx0KDlXyXlgrx5v'`
- Be sure to load the [enterprise](https://www.google.com/recaptcha/enterprise.js) reCAPTCHA script.
For example, [implement a visible reCAPTCHA widget with Google reCAPTCHA](https://cloud.google.com/recaptcha/docs/instrument-web-pages-with-checkbox):
```html
```
## Step 2 | Use reCAPTCHA tokens to register or login
Call the [`Register V2`](https://dev.wix.com/docs/rest/business-management/headless/authentication/register-v-2.md) or [`Login V2`](https://dev.wix.com/docs/rest/business-management/headless/authentication/login-v-2.md) endpoint with the appropriate reCAPTCHA token returned to your reCAPTCHA implementation.
When always requiring reCAPTCHA verification, send the token using the `captcha_tokens.Recaptcha` property.
```curl
curl --location 'https://www.wixapis.com/_api/iam/authentication/v2/login' \
--header 'authorization: ' \
--header 'content-type: application/json' \
--data '{
"loginId":{
"email": "john@doe.com"
},
"password": "verySecurePassword",
"captcha_tokens":[{
"Recaptcha": ""
}]
}'
```
When only requiring reCAPTCHA verification for suspected bots, send the token using the `captcha_tokens.InvisibleRecaptcha` property.
```curl
curl --location 'https://www.wixapis.com/_api/iam/authentication/v2/login' \
--header 'authorization: ' \
--header 'content-type: application/json' \
--data '{
"loginId":{
"email": "john@doe.com"
},
"password": "verySecurePassword",
"captcha_tokens":[{
"InvisibleRecaptcha": ""
}]
}'
```