Cancel subscription

POST/v1/billing/cancel🔑 API key required

Stop auto-renew. You keep access until the end of the current period, then downgrade to free.

Response fields

Field	Type	Description
`canceled`	boolean	Whether the cancellation was scheduled.
`accessUntil`	string	You keep the plan until this time (current period end).

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curl -X POST "https://www.quanaris.com/v1/billing/cancel" \
  -H "x-api-key: $QUANARIS_KEY" \
  -H "content-type: application/json" \
  -d '{  }'

const res = await fetch("https://www.quanaris.com/v1/billing/cancel", {
  method: "POST",
  headers: { "x-api-key": process.env.QUANARIS_KEY, "content-type": "application/json" },
  body: JSON.stringify({  })
});
const data = await res.json();

Response example

{ "canceled": true, "accessUntil": "2026-07-04T00:00:00Z" }