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eSignature API or web request? DigiSigner, Sign.Plus and the integration decision
An API is useful when another system must create requests or react to completion. It adds integration responsibilities as well as automation. Start with the trigger, recipients and final record you need before choosing a provider or writing code.
A comparison by the maker of DocAISign, based on official product documentation. We have not independently tested every competitor or verified every plan. Product names belong to their owners.
DocAISign paid checkout is not currently enabled. Self-signing is free; check your available sends and the Pricing page before planning a request.
DigiSigner distinguishes test and production API use
DigiSigner documents a REST API with JSON requests and HTTPS authentication. Its initial TEST mode adds a watermark; production use involves upgrading and API credits. Verify current access and terms, and do not present a test output as a production completed record.
Sign.Plus provides an API sandbox and events
Sign.Plus describes an API for requests and templates, a sandbox and webhook events such as completion, decline and expiry. Evaluate the actual event and download path you need. A successful request-creation response is not proof that the recipient completed signing.
Describe the integration before building it
- Which approved system event should create one request?
- How are the correct file version and recipient selected?
- How will your system distinguish pending, completed and closed requests?
- How will duplicate triggers or delayed events be reconciled?
- Where will the completed PDF and available record be exported?
Test the lifecycle, not only the first API call
Use fictional content and the provider’s test environment. Exercise completion, refusal, expiry and a lost or delayed response. Keep a mapping between your internal document reference and the provider’s request reference.
Follow the provider’s current security guidance for credentials and incoming events. Do not put service keys in browser code or treat an incoming message as trusted without the provider’s required verification. Exact retry and event-handling behaviour varies by API.
DocAISign currently provides a web workflow
DocAISign has no public signing API, webhook interface or embedded signing integration. Its internal browser endpoints are not a supported customer API. Do not build an integration around those private implementation details.
It supports prepared PDF/photo input, signature/date boxes, self-signing and one other recipient. Sending requires a confirmed sender account and available sends; the recipient uses an emailed link. For occasional requests, manual preparation may be enough.
Choose from the automation requirement
Shortlist an API provider when repeatable system integration is required and someone will own its operation. Use a web request when a person can prepare and send the document directly. In both cases, verify the final file and store its record rather than relying only on a dashboard status.