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While you can use Dialogflow by making direct REST over HTTP requests,
we provide client libraries for several popular languages.
Google Cloud Client Libraries
Dialogflow client libraries are built on
Google Cloud Client Libraries.
This common infrastructure provides functionality for API-specific library implementations,
but it also provides types and methods that you may use directly when using any Cloud API.
Authentication and access control
The Dialogflow quickstart guides provide basic information
on authentication and access control.
For more detailed information, see the following:
[[["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 2025-08-07 UTC."],[[["\u003cp\u003eDialogflow offers client libraries for easier integration, alongside direct REST over HTTP requests.\u003c/p\u003e\n"],["\u003cp\u003eThese client libraries are built on Google Cloud Client Libraries, providing shared functionality and direct-use types and methods.\u003c/p\u003e\n"],["\u003cp\u003eDialogflow provides detailed documentation on authentication and access control, including authentication methods and understanding roles.\u003c/p\u003e\n"],["\u003cp\u003eClient libraries and guides are available for a variety of languages, including C++, C#, Go, Java, Node.js, PHP, Python, and Ruby.\u003c/p\u003e\n"]]],[],null,["# Client libraries overview\n\nWhile you can use Dialogflow by making direct REST over HTTP requests,\nwe provide client libraries for several popular languages.\n\nGoogle Cloud Client Libraries\n-----------------------------\n\n\nDialogflow client libraries are built on\n[Google Cloud Client Libraries](https://cloud.google.com/apis/docs/cloud-client-libraries).\nThis common infrastructure provides functionality for API-specific library implementations,\nbut it also provides types and methods that you may use directly when using any Cloud API.\n\nAuthentication and access control\n---------------------------------\n\n\nThe Dialogflow quickstart guides provide basic information\non authentication and access control.\nFor more detailed information, see the following:\n\n- [Authentication methods](/docs/authentication)\n- [Understanding roles](/iam/docs/understanding-roles)\n\nSupported languages\n-------------------\n\n\nDialogflow provides client libraries and guides for the following languages:\n\n- [C++](/dialogflow/docs/reference/libraries/cpp)\n- [C#](/dialogflow/docs/reference/libraries/csharp)\n- [Go](/dialogflow/docs/reference/libraries/go)\n- [Java](/dialogflow/docs/reference/libraries/java)\n- [Node.js](/dialogflow/docs/reference/libraries/nodejs)\n- [PHP](/dialogflow/docs/reference/libraries/php)\n- [Python](/dialogflow/docs/reference/libraries/python)\n- [Ruby](/dialogflow/docs/reference/libraries/ruby)"]]
