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Refresh an access token

Rotate refresh tokens without expanding the customer’s authorized scopes.

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POST https://auth.shareai.now/oauth/token

Base URL: https://auth.shareai.now
Authentication: Public client ID, or confidential client credentials

cURL

curl --fail-with-body 'https://auth.shareai.now/oauth/token'   --data-urlencode 'grant_type=refresh_token'   --data-urlencode "client_id=$SHAREAI_CLIENT_ID"   --data-urlencode "refresh_token=$REFRESH_TOKEN"

This example is for a public client: no secret or Basic authentication. Confidential clients authenticate with their server-side credentials. Replace the stored refresh token atomically after a successful exchange; do not continue using its predecessor.

Refresh cannot add payments or surcharge to an identity-only authorization. Send the customer through authorization again to request additional scopes or changed billing terms. Revoked grants cannot be restored with refresh.

Last updated September 18, 2026

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