- product:signalwire_space import Tabs from @theme/Tabs; import TabItem from @theme/TabItem; Subprojects are a way for you to have more control over the resources (e.g., phone numbers or tokens) assigned to your own customers, by separating them into different containers which you can control programmatically via our APIs. All subprojects will share balance and usage limits with your main account. However, any rooms, recordings, phone numbers, SIP endpoints, and so on, will only be visible from their own subproject. If you delete a subproject, all and only the resources belonging to that subproject are removed. ### Creating a subproject from the UI Login to your [SignalWire Space](https://signalwire.com/signin). From the left menu, click on Home. Then, select the Subprojects tab. You will now be able to create subprojects for the project youre currently in. ### Creating a subproject using the REST APIs The main power of subprojects comes from the ability of automation. For example, you can create a subproject using the REST APIs as in the following example: shell curl -X POST https://$SIGNALWIRE_SPACE.signalwire.com/api/laml/2010-04-01/Accounts.json \ --data-urlencode FriendlyName=MyFirstSubproject \ -u $SIGNALWIRE_PROJECT_ID:$SIGNALWIRE_API_TOKEN javascript const axios = require(axios); const url = require(url); const params = new url.URLSearchParams({ FriendlyName: MyFirstSubproject }); axios.post( https://SIGNALWIRE_SPACE.signalwire.com/api/laml/2010-04-01/Accounts.json, params.toString(), { auth: { username: SIGNALWIRE_PROJECT_ID, password: SIGNALWIRE_API_TOKEN, }, } ); If successful, the reply from the server will include information about the subproject that has just been created: json { friendly_name: MyFirstSubproject, status: active, auth_token: redacted, date_created: Tue, 11 Jan 2022 11:45:53 +0000, date_updated: Tue, 11 Jan 2022 11:45:53 +0000, type: Full, uri: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3, subresource_uris: { addresses: null, available_phone_numbers: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/AvailablePhoneNumbers, applications: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/Applications, authorized_connect_apps: null, calls: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/Calls, conferences: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/Conferences, connect_apps: null, incoming_phone_numbers: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/IncomingPhoneNumbers, keys: null, notifications: null, outgoing_caller_ids: null, queues: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/Queues, recordings: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/Recordings, sandbox: null, signing_keys: null, sip: null, short_codes: null, messages: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/Messages, transcriptions: /api/laml/2010-04-01/Accounts/c42ea358-...4bc3/Transcriptions, usage: null } } You can do much more through the REST APIs. For example, you can list subprojects or exchange phone numbers between them. Find more by exploring our REST [API Reference](/rest/compatibility-api/endpoints/create-subprojects).