Note:
This documentation is for version 2.3.0 of the library.
Some samples may not work with other versions.
Installation
Install the Google.Cloud.RecaptchaEnterprise.V1 package from NuGet. Add it to
your project in the normal way (for example by right-clicking on the
project in Visual Studio and choosing "Manage NuGet Packages...").
Authentication
When running on Google Cloud Platform, no action needs to be taken to authenticate.
Otherwise, the simplest way of authenticating your API calls is to
download a service account JSON file then set the GOOGLE_APPLICATION_CREDENTIALS environment variable to refer to it.
The credentials will automatically be used to authenticate. See the Getting Started With
Authentication guide for more details.
Create a client instance by calling the static Create or CreateAsync methods. Alternatively,
use the builder class associated with each client class (e.g. RecaptchaEnterpriseServiceClientBuilder for RecaptchaEnterpriseServiceClient)
as an easy way of specifying custom credentials, settings, or a custom endpoint. Clients are thread-safe,
and we recommend using a single instance across your entire application unless you have a particular need
to configure multiple client objects separately.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the Google.Cloud.RecaptchaEnterprise.V1 library is 2.17.0, with version 2.3.0 being the one currently documented.\u003c/p\u003e\n"],["\u003cp\u003eThe library can be installed through NuGet by adding the \u003ccode\u003eGoogle.Cloud.RecaptchaEnterprise.V1\u003c/code\u003e package to a .NET project.\u003c/p\u003e\n"],["\u003cp\u003eAuthentication when using Google Cloud Platform is automatic, and for other environments, setting the \u003ccode\u003eGOOGLE_APPLICATION_CREDENTIALS\u003c/code\u003e environment variable to a service account JSON file is recommended.\u003c/p\u003e\n"],["\u003cp\u003eAll operations are managed through the \u003ccode\u003eRecaptchaEnterpriseServiceClient\u003c/code\u003e, and a single client instance is recommended for use throughout the application.\u003c/p\u003e\n"],["\u003cp\u003eThis library allows for the management and usage of the Google Cloud reCAPTCHA Enterprise API, allowing you to use the services provided within your .NET application.\u003c/p\u003e\n"]]],[],null,[]]