Note:
This documentation is for version 2.8.0 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, 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 Authentication
use cases 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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThis page documents version 2.8.0 of the \u003ccode\u003eGoogle.Cloud.RecaptchaEnterprise.V1\u003c/code\u003e .NET client library for the Google Cloud reCAPTCHA Enterprise API.\u003c/p\u003e\n"],["\u003cp\u003eThe library's latest version is 2.17.0, with previous versions ranging from 2.16.0 down to 1.2.0 also being accessible via links.\u003c/p\u003e\n"],["\u003cp\u003eInstallation of the library involves adding the \u003ccode\u003eGoogle.Cloud.RecaptchaEnterprise.V1\u003c/code\u003e NuGet package to a .NET project.\u003c/p\u003e\n"],["\u003cp\u003eAuthentication is automatic when running on Google Cloud, and for other environments it can be accomplished by setting the \u003ccode\u003eGOOGLE_APPLICATION_CREDENTIALS\u003c/code\u003e environment variable.\u003c/p\u003e\n"],["\u003cp\u003eAll operations are managed through the \u003ccode\u003eRecaptchaEnterpriseServiceClient\u003c/code\u003e, which is created via its static \u003ccode\u003eCreate\u003c/code\u003e or \u003ccode\u003eCreateAsync\u003c/code\u003e methods, and is recommended to be used as a single instance throughout an application.\u003c/p\u003e\n"]]],[],null,[]]
