{"activeVersionTag":"latest","latestAvailableVersionTag":"latest","collection":{"info":{"_postman_id":"c8975fa7-04cb-4c6f-a1ab-6dd024facdec","name":"ElevenVMS - Transactional Client REST API 2.18.2","description":"\nWelcome to the documentation of the ElevenVMS Client REST API! The API allows clients to extract data from, or inject data to the ElevenVMS platform. For any question about the API, please contact our support team.\n\n# Usage Limits\n\nTo protect our servers, the following limitations exist:\n\n - One service call per IP at a time; concurrent calls are not allowed\n\n - The number of service calls is limited to 10 per second\n\n - The number of daily service calls is limited to 50,000\n\nUsing our API implies acceptance of these limitations.\n\n\n# Authentication\n\nIn June 2025 we're supporting OAuth2.0 Client Credentials flow to authenticate your API requests. \n\nPreferred authentication method is OAuth2, please contact Support to get your credentials and start using the API.\nIf you are using BasicAuth, please note that this method is deprecated and will be retired in the future.\n\n\n ## OAuth2.0\n\nThe OAuth2.0 authentication is used to authenticate the user and authorize access to the API. The client credentials flow is used to obtain an access token for the API. The access token must be included in the Authorization header of each request with the *Bearer* prefix.\n\n\nThe token is obtained by sending a POST request to the token URL with the following parameters:\n\n - grant_type: client_credentials\n - client_id: your_client_id\n - client_secret: your_client_secret\n - audience: external-client-api-v2\n\n\n```json\n\n{\n \"access_token\": \"eyJhbGciOi...\",\n \"expires_in\": 86400,\n \"token_type\": \"Bearer\"\n}\n\n```\n\nThe access token is valid for the defined time in the response (currently 1 day). After that, you must request a new token. We encourage you to check the exiration time and refresh the token before it expires to avoid interruptions in your API access.\n\n\nThe token endpoints are:
\n PREVIEW: https://api-preview.elevenvms.com/oauth/token
\n PRODUCTION: https://api.elevenvms.com/oauth/token
\n\nThe number of OAuth 2.0 tokens generated is limited to **50** per client_id per day.\n\n# Endpoints\n\n**Production server** : https://api.elevenvms.com/
\n**Preview server** : https://api-preview.elevenvms.com/
\n\n# Data formats\n\nBelow are formats for data types (date, number etc.) used for query\nparameters, in request bodies and in JSON responses.\n\n
Type Format Definition
string Sequence of characters.
string byte Base64-encoded characters.
string date Full date notation according to ISO 8601 format (YYYY-MM-DD).
string date-time Date and time notation according to ISO 8601 format (YYYYY-MM-DDThh:mm:ssZ).
string email Email address format, as defined by RFC 5322 (sections 3.2.3 and 3.4.1) and RFC 5321.
integer Integer numbers.
number Floating-point numbers.
boolean Type boolean represents two values: true and false.
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