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https://api.signicat.com/secure-share/The Secure Share API enables you to securely share files with other people in a programmatic way.
You can choose among different levels of security, ranging from weaker methods, such as One-Time Passwords (OTPs), to stronger methods, like using electronic IDs (eIDs).
This REST API uses the OAuth 2.0 protocol for authorisation. All request and response bodies are formatted in JSON.
Before you can start making requests to this API, you need to learn how to connect to it. To do this, see the Connect to Signicat APIs Quick start guide.
Use the Signicat Audit logs service to see documented evidence of the sequence of activities that have affected a system.
When you make an API call to Signicat and an error occurs, you will receive a response message with an error code.
Use the Signicat Events service to automatically receive information about when something happens in one of our services into your system.
Note: This is often referred to as callback.
Create a recipient and add it to an existing share
| shareId required | string <guid> Example: b33f8217-f64f-4fd7-a4f7-208169c021d9 The identifier of the share this recipient belongs to |
| firstName | string or null Recipient first name |
| lastName | string or null Recipient last name |
string or null <email> ^[^@]+@[^@]+$ Recipient email. Email is required if mobile is not provided or if it used by authentications or notifications | |
| mobile | string or null Recipient mobile. Mobile is required if email is not provided or if it used by authentications or notifications |
| fileRestrictions | Array of strings or null <guid> [ items <guid > ] A list of file ids that this recipient has access to, if empty, this recipient will have access to all the file from the share |
required | Array of objects (AuthenticationDto) non-empty List of authentication methods for a recipient |
(NotificationDto (object or null)) Recipient notification setup | |
| externalReference | string or null Create a reference to your own system |
{- "firstName": "John",
- "lastName": "Johnson",
- "email": "john.johnson@signicat.com",
- "mobile": "+4771234567",
- "fileRestrictions": [ ],
- "authentication": [
- {
- "identityProvider": "nbid",
- "idpId": "1234-3456-5678",
- "nin": "12345678901"
}
], - "notification": {
- "sendEmail": true,
- "sendSms": true,
- "language": "En"
}, - "externalReference": "fd673b9e-a37f-4226-909b-ab8b57ef5986"
}{- "id": "ae5f4e02-7354-484d-b502-a28e3bdc77f6",
- "externalReference": "84e2cdf5-c77a-4cec-af9c-81d3cea650e2",
- "firstName": "John",
- "lastName": "Johnson",
- "email": "john.johnson@signicat.com",
- "mobile": "0777777777",
- "fileAccessInfos": [
- {
- "id": "69832d88-d631-4fe6-86fd-b50e54bdaeb9",
- "lastDownloadedAt": "2026-07-08T06:27:19.115306+00:00"
}
], - "fileRestrictions": [
- "69832d88-d631-4fe6-86fd-b50e54bdaeb9"
], - "authentication": [
- {
- "identityProvider": "otp-sms",
- "idpId": null,
- "nin": null
}, - {
- "identityProvider": "otp-email",
- "idpId": null,
- "nin": null
}
], - "loggedInTime": "2026-07-08T06:22:19.1153128+00:00",
- "url": null,
- "notification": {
- "sendEmail": true,
- "sendSms": true,
- "language": "En"
}
}Remove a recipient from an existing share
| shareId required | string <guid> Example: 717fe74c-16a0-441c-be11-5b1830290b5e Unique Share identifier |
| recipientId required | string <guid> Example: 35f140b9-e222-4591-975b-dabfe46ae969 Unique Recipient identifier |
{- "type": null,
- "title": null,
- "status": null,
- "detail": null,
- "instance": null
}Get a recipient from an existing share
| shareId required | string <guid> Example: 554f2979-e45f-4c8a-820e-885d2f3a2895 Unique Share identifier |
| recipientId required | string <guid> Example: 02f22be4-8f3e-483a-a2a5-75e5178c145c Unique Recipient identifier |
{- "id": "2d340d4a-c71d-43b9-9cdd-b33349695d00",
- "externalReference": "b9b208e6-2439-4578-9107-b09a75be1dfe",
- "firstName": "John",
- "lastName": "Johnson",
- "email": "john.johnson@signicat.com",
- "mobile": "0777777777",
- "fileAccessInfos": [
- {
- "id": "8eeba756-2ff2-41c3-bbe2-9f80852c530c",
- "lastDownloadedAt": "2026-07-08T06:27:19.1167728+00:00"
}
], - "fileRestrictions": [
- "8eeba756-2ff2-41c3-bbe2-9f80852c530c"
], - "authentication": [
- {
- "identityProvider": "otp-sms",
- "idpId": null,
- "nin": null
}, - {
- "identityProvider": "otp-email",
- "idpId": null,
- "nin": null
}
], - "loggedInTime": "2026-07-08T06:22:19.1167783+00:00",
- "url": null,
- "notification": {
- "sendEmail": true,
- "sendSms": true,
- "language": "En"
}
}Update a recipient from an existing share
| shareId required | string <guid> Example: c776d045-7a52-4350-b631-7aff115526da The identifier of the share this recipient belongs to |
| recipientId required | string <guid> Example: 9a3ebf76-7fe1-4f32-938d-4bfe2af1bc0a Unique recipient identifier |
| firstName | string or null Recipient first name |
| lastName | string or null Recipient last name |
string or null <email> ^[^@]+@[^@]+$ Recipient email | |
| mobile | string or null Recipient mobile |
| externalReference | string or null Create a reference to your own system |
| fileRestrictions | Array of strings or null <guid> [ items <guid > ] A list of file ids that this recipient has access to, if empty, this recipient will have access to all the file from the share |
Array of objects or null (AuthenticationDto) List of authentication methods for a recipient | |
(UpdateNotificationDto (object or null)) Recipient notification setup |
{- "firstName": "John",
- "lastName": "Johnson",
- "email": "john.johnson@signicat.com",
- "mobile": "+4771234567",
- "externalReference": "dd3324c4-ab55-45fe-8392-15b2b3b6c28a",
- "fileRestrictions": [ ],
- "authentication": [
- {
- "identityProvider": "sbid",
- "idpId": "5678-1234-3456",
- "nin": "10234567893"
}
], - "notification": {
- "sendEmail": true,
- "sensSms": true,
- "language": null
}
}{- "id": "a84ebfab-096d-4014-b6db-e9c236746a75",
- "externalReference": "94e25092-9181-494a-9b85-8c337b1523a3",
- "firstName": "John",
- "lastName": "Johnson",
- "email": "john.johnson@signicat.com",
- "mobile": "0777777777",
- "fileAccessInfos": [ ],
- "fileRestrictions": [ ],
- "authentication": [
- {
- "identityProvider": "sbid",
- "idpId": "5678-1234-3456",
- "nin": "10234567893"
}
], - "loggedInTime": "2026-07-08T06:22:19.1188658+00:00",
- "url": null,
- "notification": {
- "sendEmail": true,
- "sendSms": true,
- "language": "En"
}
}Send a reminder notification to a specific recipient
| shareId required | string <guid> Example: ffec3f7c-40ad-4106-b231-6eda3bdea986 Unique Share identifier |
| recipientId required | string <guid> Example: 1165f6a7-6b4b-47cf-ac91-c5a129268948 Unique Recipient identifier |
{- "type": null,
- "title": null,
- "status": null,
- "detail": null,
- "instance": null
}Remove a file from the storage
| shareId required | string <guid> Example: 338994c3-323b-4bd8-8de8-c49f14417662 Unique Share identifier |
| fileId required | string <guid> Example: c60e5f04-5e53-4dae-a41d-3f8ed672e4e4 Unique File identifier |
{- "type": null,
- "title": null,
- "status": null,
- "detail": null,
- "instance": null
}Upload a file(s) using multipart/form-data request body
| shareId required | string <guid> Example: 7273057a-3367-4cdc-a881-243a9a271f45 Unique Share identifier |
[- {
- "id": "650720b7-7888-4e51-b049-50cfc07a371f",
- "name": "File1",
- "status": "Success",
- "size": 1234,
- "message": null
}, - {
- "id": "61788ed6-5ce9-469c-ae6e-0bb3013407be",
- "name": "File2",
- "status": "VirusFound",
- "size": 5023412,
- "message": "This file contains a malicious script"
}, - {
- "id": "e015d596-f0ac-476b-8673-fdf9161102a2",
- "name": "File3",
- "status": "Failed",
- "size": 5678,
- "message": "Something went wrong uploading the file"
}, - {
- "id": "2d8e9ebc-d73c-41a0-8c88-258dbaa53c23",
- "name": "File4",
- "status": "Success",
- "size": 69420,
- "message": null
}
]