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Base URL

Our API is organized around REST. It has predictable resource-oriented URLs. We enforce HTTPS in every request to improve data security, integrity, and privacy. The API does not support HTTP. All requests contain the following base URL:

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Authentication

To authenticate you need to add an X-Sendforsign-Key header with the contents of the header being YOUR_API where YOUR_API is your API key.

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Response

Sendforsign uses standard HTTP codes to indicate the success or failure of your requests. In general, 2xx HTTP codes correspond to success, 4xx codes are for user-related failures, and 5xx codes are for infrastructure issues.