To set up your account and be ready to make your first API request, please follow these steps :

Step 1: Create your Yousign account

Step 2: Start the free API trial

In the right panel, go to the API section >> API keys page. Then start your API trial period.

The free API trial

The free API trial provides 40-day access to a Yousign’s application and a dedicated sandbox environment, allowing you to test and integrate Yousign’s API without impacting a live production system. This environment is isolated, designed specifically for development and testing purposes, and supports most core functionalities of the API. Lear more about environments here.

Step 3: Create an API key

Add a description.
Select the environment (Sandbox or Production). You will be limited to the Sandbox environment during the API trial period.
Select Permissions (Full-Access or Read-Only).

Permissions	Description
Full-Access	If you want to create resources (Signature Request, Documents, etc) you need to use a full-access API key.
Read-Only	If you only want to read existing resources you can use a read-only API key.

The API key serves as a unique identifier to authenticate your requests and grant access to the Yousign API, it must be included in each API request.

Only users with an Admin or Owner role can create API keys.

❗️
Your API key is secret and must not be shown publicly. Be careful not to share your keys in code repositories or in front-end source code.
In case of suspected key disclosure, you can revoke the key via your Yousign developer dashboard and regenerate a new one.

Step 4: Choose the right base URL

The base URL is the entry point for all API requests. It specifies the environment being accessed: sandbox for testing or production for live operations.

Environment	Base URL
Sandbox	https://api-sandbox.yousign.app/v3
Production	https://api.yousign.app/v3

During the free API trial period, you will only be able to use the Sandbox base URL.

Step 5: Make your first API request

With the API key and base URL configured, the first API request can be made. The example below retrieves a list of Signature Requests (see List Signature Requests endpoint):

curl --location --request GET '{baseUrl}/signature_requests' \
--header 'Authorization: Bearer {apiKey}'

 "meta": {
        "next_cursor": "MTcyNTg3ODcyOC40OTY0NTIgZDNmMmIwZmQtZjIzYS00MWZmLWFlY2UtODU1ZjYyZTkyZDgw"
    },
    "data": [
        {
            "approvers": [],
            "labels": [],
            "id": "2a6f9f6a-18a4-4e14-8bee-b734369f3cf6",
            "source": "app",
            "status": "draft",
            "name": "My signature request",
            "created_at": "2025-01-09T09:37:45+00:00",
            "email_custom_note": null,
            "ordered_signers": false,
            "timezone": "Europe/Paris",
            "reminder_settings": {
                "interval_in_days": 1,
                "max_occurrences": 9
            },
            "expiration_date": "2025-03-13T22:59:59+00:00",
            "delivery_mode": "email",
            "documents": [
                {
                    "id": "a64742c7-3c2f-434a-86b2-9a6881106d6f",
                    "nature": "signable_document"
                }
            ],
            "signers": [
                {
                    "id": "2e964215-fe7b-4933-9892-6879170c6068",
                    "status": "initiated",
                    "delivery_mode": null
                }
            ],
            "external_id": null,
            "branding_id": "2ad32d78-09b0-43bb-8735-d8fa9e02e248",
            "custom_experience_id": "2ad32d78-09b0-43bb-8735-d8fa9e02e248",
            "sender": null,
            "workspace_id": "814aac47-2e91-477a-bfc2-3f05a9b29824",
            "audit_trail_locale": "en",
            "signers_allowed_to_decline": true,
            "bulk_send_batch_id": null,
            "email_notification": {
                "sender": {
                    "type": "organization",
                    "custom_name": null
                },
                "custom_note": null
            }
        },
        {
            "approvers": [],
            "labels": [],
            "id": "c4538cd4-b0fc-46e9-bf77-8a38df29b2cc",
            "source": "app",
            "status": "done",
            "name": "My contract",
            "created_at": "2025-01-06T15:36:33+00:00",
            "email_custom_note": null,
            "ordered_signers": false,
            "timezone": "Europe/Paris",
            "reminder_settings": {
                "interval_in_days": 1,
                "max_occurrences": 9
            },
            "expiration_date": "2025-03-12T22:59:59+00:00",
            "delivery_mode": "email",
            "documents": [
                {
                    "id": "c13a72c5-7965-4f22-86b6-b1c48e892fc8",
                    "nature": "signable_document"
                }
            ],
            "signers": [
                {
                    "id": "1a176304-5f78-4134-8d14-eb1552fa1053",
                    "status": "signed",
                    "delivery_mode": null
                }
            ],
            "external_id": null,
            "branding_id": "1a1eec62-137f-4c92-a386-e5a18a2fec7e",
            "custom_experience_id": "1a1eec62-137f-4c92-a386-e5a18a2fec7e",
            "sender": {
                "id": "da21b0a8-fa67-4c08-819f-0ff1c47e62c7",
                "email": "[email protected]"
            },
            "workspace_id": "814aac47-2e91-477a-bfc2-3f05a9b29824",
            "audit_trail_locale": "en",
            "signers_allowed_to_decline": true,
            "bulk_send_batch_id": null,
            "email_notification": {
                "sender": {
                    "type": "user",
                    "custom_name": null
                },
                "custom_note": null
            }
        }
    ]
}

{baseUrl}: Replace with the appropriate base URL from Step 4.
{apiKey}: Replace with the API key from Step 3.

Use our Postman collection to easily test, explore, and integrate with the Yousign API.
Get started with Postman here.