Current Billproof support
What Billproof supports today
Billproof does not currently offer direct OpenAI invoice retrieval. You can still build a reviewable record by forwarding invoice email or uploading the original document.
Invoice retrieval
Where OpenAI provides invoices
ChatGPT Settings > Billing or Workspace settings > Billing > Invoices; API Platform > Billing or Billing history.
Ways to retrieve records today
For step-by-step instructions, use the OpenAI invoice retrieval guide.
Access controls
Authentication and permissions
- OAuth
- Not used for this workflow
- API token
- Not used for this workflow
- Browser session
- Required for portal access
- Required role
- ChatGPT account holder or workspace owner; API organization owner for API billing
Vendor evidence
Available billing and document data
This table describes data documented by the vendor. It does not imply that Billproof retrieves every field directly.
| Billing capability | Vendor availability | Evidence note |
|---|---|---|
| Account discovery | Not documented | No verified detail is available yet. |
| Billing history | Documented | ChatGPT and API products expose separate billing history in their own settings. |
| Invoice metadata | Documented | No verified detail is available yet. |
| Invoice PDF | Documented | Available invoices can be downloaded from the relevant billing portal or history. |
| Credit notes | Unknown | No verified detail is available yet. |
| Line items | Partial | Enterprise API invoices and self-serve payment documents vary in detail. |
| Usage data | Documented | The API Platform provides usage and cost reporting separately from invoice documents. |
| Subscriptions | Documented | ChatGPT subscriptions are managed separately from API billing. |
| Payment method | Documented | No verified detail is available yet. |
Normalized record
Fields Billproof can normalize
- vendor_name
- invoice_number
- invoice_date
- billing_period
- product
- workspace_name
- api_organization_id
- usage_charges
- prepaid_credits
- line_items
- subtotal
- tax
- total
- currency
- payment_status
Known boundaries
Limitations
- No direct OpenAI billing connection is available in Billproof.
- ChatGPT and API billing are separate systems and may create separate charges and documents.
- Enterprise API invoices are typically issued within two weeks after the calendar month closes unless the contract differs.
- Self-serve API customers may receive receipts or available invoices for prepaid credits and automatic charges instead of a monthly Enterprise invoice.
- Apple and Google subscriptions must be retrieved from the applicable app store.
Primary evidence
Sources
Last verified August 28, 2026. Vendor interfaces and billing policies can change.