Note:
This documentation is for version1.6.0of the library.
Some samples may not work with other versions.
Installation
Install theGoogle.Cloud.RecaptchaEnterprise.V1package 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 theGOOGLE_APPLICATION_CREDENTIALSenvironment variable to refer to it.
The credentials will automatically be used to authenticate. See theGetting Started With
Authenticationguide for more details.
Create a client instance by calling the staticCreateorCreateAsyncmethods. 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"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eGoogle.Cloud.RecaptchaEnterprise.V1\u003c/code\u003e library is a .NET client for interacting with the Google Cloud reCAPTCHA Enterprise API, and this documentation specifically covers version 1.6.0.\u003c/p\u003e\n"],["\u003cp\u003eTo use the library, you need to install the \u003ccode\u003eGoogle.Cloud.RecaptchaEnterprise.V1\u003c/code\u003e NuGet package, which can be easily done through the NuGet Package Manager in Visual Studio.\u003c/p\u003e\n"],["\u003cp\u003eAuthentication when using this API is automatic on Google Cloud Platform, and on other systems, you can use a service account JSON file and set the \u003ccode\u003eGOOGLE_APPLICATION_CREDENTIALS\u003c/code\u003e environment variable for authentication.\u003c/p\u003e\n"],["\u003cp\u003eAll API operations are carried out via the \u003ccode\u003eRecaptchaEnterpriseServiceClient\u003c/code\u003e, which can be created using the \u003ccode\u003eCreate\u003c/code\u003e or \u003ccode\u003eCreateAsync\u003c/code\u003e methods or via its dedicated builder class, and it is thread-safe.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of this API is version 2.17.0, and this documentation shows available versions all the way back to version 1.2.0.\u003c/p\u003e\n"]]],[],null,[]]