Quickstart
1

Create a Sign.Plus Account

Please sign up on the Sign.Plus Platform to get started.
2

Get Your API Key

Please visit the Integrations page to activate your API sandbox and get your API key.
3

Create Your First Envelope

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Create your first envelope

An Envelope is a container for documents to be signed by recipients. Learn more about Envelope.To create a new envelope, see the POST /v2/envelope endpoint documentation.
Create envelope
curl --request POST \
  --url https://restapi.sign.plus/v2/envelope \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "My wonderful envelope",
  "flow_type": "REQUEST_SIGNATURE",
  "legality_level": "SES",
  "expires_at": 1831280113,
  "sandbox": true
}'
On success, the API will return a response with the envelope ID in a format like 66873403520e051cdb834df. Get the envelope ID from the response to use in the next steps.
4

Add a Document into Your Envelope

A Document is a file that you want to get signed by recipients. You can add one or more documents in an Envelope. Learn more about Documents.To add a document to the envelope, see the POST /v2/envelope/{envelope_id}/document endpoint documentation.
Add document
curl --request POST \
  --url https://restapi.sign.plus/v2/envelope/{envelope_id}/document \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: multipart/form-data' \
  --form 'file=<string>'
On success, the API will return a response with the document ID in a format like 66873403520e051cdb834df. Get the document ID from the response to use in the next steps.
5

Set a Recipient to Your Envelope

A Recipient is a person who will sign the document in the envelope. You can add one or more recipients to an envelope in a specific order using signing steps. Learn more about Recipients and Signing Steps.To add a recipient to the envelope, see the POST /v2/envelope/{envelope_id}/signing_steps endpoint documentation.
Add signing steps
curl --request POST \
  --url https://restapi.sign.plus/v2/envelope/{envelope_id}/signing_steps \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "signing_steps": [
    {
      "recipients": [
        {
          "name": "John Doe",
          "email": "john.doe@gmail.com",
          "role": "SIGNER",
        }
      ]
    }
  ]
}'
On success, the API will return a response with the recipient ID in a format like 66873403520e051cdb834df under the signing steps. Get the recipient ID from the response to use in the next steps.
6

Insert a Signature Annotation in Your Document

A Signature Annotation serves as a designated placeholder within a document where the recipient is required to sign. You can include one or more signature annotations in a document. These annotations can be added alongside other types of annotations, such as text fields, date fields, and checkboxes. For further details, visit Annotation.Before adding the annotation, you need to define your signature in the Sign.Plus platform.
To learn how to add a signature annotation to a document, refer to the POST /v2/document/{envelope_id}/annotation endpoint documentation.
Add annotation
curl --request POST \
  --url https://restapi.sign.plus/v2/envelope/{envelope_id}/annotation \
  --header 'Authorization: Bearer <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "recipient_id": "<string>",
  "document_id": "<string>",
  "page": 1,
  "x": 50,
  "y": 20,
  "width": 20,
  "height": 60,
  "required": true,
  "type": "SIGNATURE",
  "signature": {
    "id": ""
  },
  "initials": null,
  "text": null,
  "datetime": null,
  "checkbox": null
}'
On success, the API will return the inserted annotation.
7

Send Your Envelope for Signature

You successfully created an envelope, added a document, set a recipient, and inserted a signature annotation. Now, it’s time to send the envelope for signature.To send the envelope for signature, see the POST /v2/envelope/{envelope_id}/send endpoint documentation.
Send envelope
curl --request POST \
--url https://restapi.sign.plus/v2/envelope/{envelope_id}/send \
--header 'Authorization: Bearer <api-key>'
On success, the API will send the envelope for signature to the recipient. They will receive an email notification with a link to sign the document.
8

Get notification when the envelope is completed

Now that your envelope is sent for signature, you can get notified when the envelope status changes. You can use the Webhooks feature to get real-time notifications about the envelope status.To learn more about Webhooks, visit the Webhooks guide.
9

Download signed documents

Once the recipient signs the envelope, you have two options to retrieve files through the Sign.Plus API:To obtain just the Certificate of Completion, use the GET GET /v2/envelope/{envelope_id}/certificate endpoint.To download the signed envelope as a PDF portfolio, use the GET GET /v2/envelope/{envelope_id}/signed_documents endpoint.

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Go further

  • Create a Template for frequently used envelope
  • Get notified when the envelope status changes with Webhooks