Send your first API request

By the end of this tutorial you will have made an API call to Solvimon and received a response. No billing setup required — just get talking to the API.

What you’ll need:

• A Solvimon sandbox account
• curl or any HTTP client

Step 1: Get your API key

1. Log in to the Solvimon Sandbox
2. Go to Settings → API keys
3. Copy your TEST API key

🚧 Keep your API key secret. Do not commit it to source control or expose it in client-side code.

Step 2: Make your first request

List your customers. On a fresh sandbox account this returns an empty list — that’s expected.

$
curl https://test.api.solvimon.com/v1/customers \
>
  -H "X-API-KEY: <apiKey>"

A successful response:

1
{
2
  "data": [],
3
  "page": 1,
4
  "limit": 10,
5
  "links": {
6
    "first": "https://test.api.solvimon.com/v1/customers?page=1",
7
    "previous": null,
8
    "current": "https://test.api.solvimon.com/v1/customers?page=1",
9
    "next": null
10
  }
11
}

A 200 with an empty data array means you’re authenticated and connected.

📘 All API requests must be made over HTTPS. Requests without a valid X-API-KEY header return 401 UNAUTHORISED.

Step 3: Create your first customer

$
curl -X POST https://test.api.solvimon.com/v1/customers \
>
  -H "X-API-KEY: <apiKey>" \
>
  -H "Content-Type: application/json" \
>
  -d '{
>
    "reference": "superstore-001",
>
    "type": "ORGANIZATION",
>
    "email": "invoices@superstore.de",
>
    "roles": [
>
        "DEFAULT"
>
    ],
>
    "status": "DRAFT",
>
    "timezone": "Europe/Berlin",
>
    "organization": {
>
        "legal_name": "SuperStore GmbH",
>
        "tax_ids": [
>
            {
>
                "id": "368807022",
>
                "type": "GENERIC_TAX_ID"
>
            }
>
        ],
>
        "registered_address": {
>
            "line1": "Hasengarten 14",
>
            "city": "Berlin",
>
            "postal_code": "79341",
>
            "state": "",
>
            "country": "DE"
>
        }
>
    }
>
}'

Response:

1
{
2
    "object_type": "CUSTOMER",
3
    "id": "cust_abc",
4
    "created_at": "2026-03-31T08:39:02Z",
5
    "reference": "superstore-001",
6
    "status": "DRAFT",
7
    "timezone": "Europe/Berlin",
8
    "type": "ORGANIZATION",
9
    "email": "invoices@superstore.de",
10
    "organization": {
11
        "legal_name": "SuperStore GmbH",
12
        "tax_id": "368807022",
13
        "tax_ids": [
14
            {
15
                "id": "368807022",
16
                "type": "GENERIC_TAX_ID"
17
            }
18
        ],
19
        "registered_address": {
20
            "line1": "Hasengarten 14",
21
            "city": "Berlin",
22
            "postal_code": "79341",
23
            "state": "",
24
            "country": "DE"
25
        }
26
    },
27
    "roles": [
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        "DEFAULT"
29
    ]
30
}

The id is Solvimon’s internal identifier. The reference is your own — use it to look this customer up from your system.

Step 4: Fetch the customer back

$
curl "https://test.api.solvimon.com/v1/customers?reference=superstore-001" \
>
  -H "X-API-KEY: <apiKey>"

Step 5: Activate the customer

The customer was created in DRAFT status. Before you can create a subscription, you need to activate them:

$
curl -X POST https://test.api.solvimon.com/v1/customers/superstore-001/activate \
>
  -H "X-API-KEY: <apiKey>"
$
  -d '{}'

A 200 response means the customer is now ACTIVE. Resources in Solvimon follow a DRAFT → ACTIVE lifecycle — drafts exist so you can configure them before they’re used in billing.

What to do next

• Understand the full data model — Get to your first invoice walks through the complete primitive chain: meter → product → pricing plan → subscription → usage event → invoice.
• Build a B2C subscription product — Bill your first B2C customer adds payment collection via Adyen or Stripe.
• Start configuring your own pricing — Onboarding guide covers the full setup process with timelines.