Ce produit ou cette fonctionnalité est obsolète. Pour en savoir plus sur l'ancienne étape et sur la façon de migrer vers de nouveaux services, consultez la section Produits et fonctionnalités obsolètes.
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Les produits Google Maps Platform sont protégés contre les utilisations non autorisées en limitant les appels d'API aux personnes qui fournissent des identifiants d'authentification appropriés. Ces identifiants se présentent sous la forme d'une clé API, qui correspond à une chaîne alphanumérique unique qui associe votre compte de facturation Google à votre projet, ainsi qu'à l'API ou au SDK spécifique.
Ce guide explique comment créer, restreindre et utiliser votre clé API pour Google Maps Platform.
Avant de commencer
Avant de pouvoir utiliser l'API Distance Matrix, vous devez disposer d'un projet avec un compte de facturation et l'API Distance Matrix doit être activée. Pour en savoir plus, consultez Configurer vos projets dans la console Cloud.
Créer des clés API
Une clé API est un identifiant unique qui permet d'authentifier les requêtes associées à votre projet à des fins d'utilisation et de facturation. Vous devez associer au moins une clé API à votre projet.
Google vous recommande vivement de restreindre vos clés API en limitant leur utilisation aux seules API nécessaires à votre application. Restreindre les clés API vous aide à renforcer la sécurité de votre application en la protégeant contre les requêtes non justifiées. Vous êtes responsable financièrement des frais générés par une utilisation abusive de clés API sans restriction.
Pour en savoir plus, consultez les bonnes pratiques de sécurité pour les API.
HTTPS est requis pour les requêtes qui utilisent une clé API.
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
Dernière mise à jour le 2025/08/31 (UTC).
[null,null,["Dernière mise à jour le 2025/08/31 (UTC)."],[[["\u003cp\u003eGoogle Maps Platform secures its products by requiring API keys for authentication and billing purposes.\u003c/p\u003e\n"],["\u003cp\u003eYou can create and restrict API keys through the Google Cloud Console or the Cloud SDK.\u003c/p\u003e\n"],["\u003cp\u003eRestricting API keys enhances security by limiting their usage to specific applications and IP addresses.\u003c/p\u003e\n"],["\u003cp\u003eAPI keys must be included in every Distance Matrix API request using HTTPS.\u003c/p\u003e\n"],["\u003cp\u003eWhen constructing URLs for web services, special characters need to be URL encoded and the total length should not exceed 2048 characters.\u003c/p\u003e\n"]]],[],null,["# Use API Keys with Distance Matrix API\n\nGoogle Maps Platform products are secured from unauthorized use by restricting API calls\nto those that provide proper authentication credentials. These credentials are in the form of\nan API key - a unique alphanumeric string that associates your Google billing account with your\nproject, and with the specific API or SDK.\n\nThis guide shows how to create, restrict, and use your API key for Google Maps Platform.\n\nBefore you begin\n----------------\n\nBefore you start using the Distance Matrix API, you need a project with a billing account and the\nDistance Matrix API enabled. To learn more, see [Set up in Cloud console](/maps/documentation/distance-matrix/cloud-setup).\n\nCreating API keys\n-----------------\n\nThe API key is a unique identifier that authenticates requests associated with your project for\nusage and billing purposes. You must have at least one API key associated with your project.\n\nTo create an API key:\n\n### Console\n\n1. Go to the **Google Maps Platform \\\u003e Credentials** page.\n\n [Go to the Credentials page](https://console.cloud.google.com/project/_/google/maps-apis/credentials?utm_source=Docs_CreateAPIKey&utm_content=Docs_distance-matrix-backend)\n2. On the **Credentials** page, click **Create credentials \\\u003e API key** . \n The **API key created** dialog displays your newly created API key.\n3. Click **Close.** \n The new API key is listed on the **Credentials** page under **API keys** . \n (Remember to [restrict the API](/maps/api-security-best-practices#restricting-api-keys) key before using it in production.)\n\n### Cloud SDK\n\n```bash\ngcloud services api-keys create \\\n --project \"\u003cvar translate=\"no\"\u003ePROJECT\u003c/var\u003e\" \\\n --display-name \"\u003cvar translate=\"no\"\u003eDISPLAY_NAME\u003c/var\u003e\"\n```\n\nRead more about the\n[Google Cloud SDK](https://cloud.google.com/sdk)\n,\n[Cloud SDK installation](https://cloud.google.com/sdk/docs/install)\n, and the following commands:\n\n- [`gcloud services api-keys create`](https://cloud.google.com/sdk/gcloud/reference/services/api-keys/create)\n\nRestricting API keys\n--------------------\n\nGoogle strongly recommends that you restrict your API keys by limiting their usage to those only\nAPIs needed for your application. Restricting API keys adds security to your application by\nprotecting it from unwarranted requests. **You are financially responsible for charges caused by abuse of unrestricted API keys.** For more information, see\n[API security best practices](/maps/api-security-best-practices#restrict_apikey).\n\n| When restricting an API key in the Cloud console, **Application restrictions** override any APIs enabled under **API restrictions**. Follow best practices by creating a separate API key for each app, and for each platform on which that app is available.\n\nTo restrict an API key:\n\n### Console\n\n1. Go to the **Google Maps Platform \\\u003e Credentials** page.\n\n [Go to the Credentials page](https://console.cloud.google.com/project/_/google/maps-apis/credentials?utm_source=Docs_RestrictAPIKey&utm_content=Docs_distance-matrix-backend)\n2. Select the API key that you want to set a restriction on. The API key property page appears.\n3. Under **Key restrictions**, set the following restrictions:\n - Application restrictions:\n 1. To accept requests from the list of web server IP addresses that you supply, select **IP addresses (web servers, cron jobs, etc.)** from the list of **Application restrictions** . Specify one or more IPv4 or IPv6 address, or subnet using CIDR notation. The IP addresses must match the source address the Google Maps Platform servers observe. If you use [network\n address translation (NAT)](https://en.wikipedia.org/wiki/Network_address_translation), this would typically correspond to your machine's *public* IP address.\n - API restrictions:\n 1. Click **Restrict key**.\n 2. Select **Distance Matrix API** from **Select APIs** dropdown. If the Distance Matrix API is not listed, you need to [enable](/maps/documentation/distance-matrix/cloud-setup#enabling-apis) it.\n4. To finalize your changes, click **Save** . \n\n### Cloud SDK\n\n\nList existing keys. \n\n```bash\ngcloud services api-keys list --project=\"\u003cvar translate=\"no\"\u003ePROJECT\u003c/var\u003e\"\n```\n\n\nClear existing restrictions on existing key. \n\n```bash\ngcloud services api-keys update \"projects/\u003cvar translate=\"no\"\u003ePROJECT\u003c/var\u003e/keys/\u003cvar translate=\"no\"\u003eKEY_ID\u003c/var\u003e\" \\\n --clear-restrictions\n```\n\n\nSet new restrictions on existing key. \n\n```bash\ngcloud services api-keys update projects/PROJECT/locations/global/keys/KEY_ID \\\n --api-target=service=distance-matrix-backend.googleapis.com\n --allowed-ips=\"\u003cvar translate=\"no\"\u003eIP_ADDRESS\u003c/var\u003e\"\n```\n\nRead more about the\n[Google Cloud SDK](https://cloud.google.com/sdk)\n,\n[Cloud SDK installation](https://cloud.google.com/sdk/docs/install)\n, and the following commands:\n\n- [`gcloud services api-keys update`](https://cloud.google.com/sdk/gcloud/reference/services/api-keys/update)\n- [`gcloud services api-keys lookup`](https://cloud.google.com/sdk/gcloud/reference/services/api-keys/lookup)\n- [`gcloud services api-keys list`](https://cloud.google.com/sdk/gcloud/reference/services/api-keys/list)\n\nAdding the API key to your request\n----------------------------------\n\nYou must include an API key with every Distance Matrix API request. In the following example,\nreplace `YOUR_API_KEY` with your API key.\n`https://maps.googleapis.com/maps/api/distancematrix/json?origins=Seattle&destinations=San+Francisco&key=`YOUR_API_KEY\n\nHTTPS is required for requests that use an API key.\n| **Note:** When using Web Services, all special characters inside the parameters must be URL encoded. URLs must be properly encoded to be valid and are limited to 2048 characters for all web services. Be aware of this limit when constructing your URLs. Different browsers, proxies, and servers may have different URL character limits as well."]]
