Discover Intuit OAuth and QuickBooks Online API base endpoints from the discovery document
domain: developer.intuit.com · 6 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
In-depth guide
QuickBooks OAuth refresh token rotation — the full failure-mode walkthrough related to developer.intuit.com, checked against official docs, with linked verified routes.
Documented steps
Fetch the Intuit OAuth 2.0 discovery document (the /.well-known/openid-configuration style endpoint published by Intuit).
Read the authorization_endpoint and token_endpoint values to drive the OAuth flow instead of hard-coding them.
Read the QBO API base URI (https://quickbooks.api.intuit.com) from the discovery document or the documented constant.
Combine the base URI with /v3/company/{realmId}/ to form entity endpoints, e.g. https://quickbooks.api.intuit.com/v3/company/{realmId}/companyinfo/{realmId}.
Use the discovered token_endpoint for both authorization_code exchange and refresh_token calls.
API docs: https://developer.intuit.com/app/developer/qbo/docs/develop/authentication-and-authorization/oauth-2.0
Known gotchas
realmId is the per-company ID from the OAuth response, not your client id — using the wrong value returns authorization/not found errors.
Some docs hard-code the bearer endpoint https://oauth.platform.intuit.com/oauth2/v1/tokens/bearer; prefer the discovery value where you can.
Sandbox and production companies have different realmIds; do not mix them.
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