Authenticate with an API key

Send a participant-scoped sandbox API key as a Bearer token.

Sandbox APIhttps://sandbox-api.nuvante.io

Today, Nuvanté authenticates integrator requests with participant API keys that you create in the sandbox portal. Create a key, store the secret on your server (you'll only see it once), and send it with every API call. We're looking at OAuth 2.0 client credentials for machine authentication in production, and they aren't available yet.

Parameters

Authenticate with an API key parameters
Field	Type	Required	Description
Authorization	string · header	Yes	Bearer token with a sandbox key: `Bearer nvt_sandbox_…`.

Responses

200Request authenticated.

401API key missing or invalid.

Try this request in the sandbox console

Request

curl --request GET \
  --url 'https://sandbox-api.nuvante.io/api/v1/system/status' \
  --header 'Authorization: Bearer nvt_sandbox_your_key' \
  --header 'Accept: application/json'

Response

{
  "data": {
    "checkedAt": "2026-07-28T14:19:21.830Z",
    "engineStalledJobs": 0,
    "engineStatus": "operational",
    "onChainLatencyMs": null,
    "onChainStatus": "operational",
    "rtgsConnection": "connected",
    "rtgsLatencyMs": null
  },
  "meta": {
    "commandId": "c23e4567-e89b-42d3-a456-426614174012"
  }
}