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# List KSeF purchase invoices

> Invoices that suppliers sent to you in KSeF and you have not booked yet. Inputs, cURL, Python and Node.js examples and an example response.

Source: https://cotlet.dev/docs/api/ifirma/list_ksef_purchase_invoices

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Invoices that suppliers sent to you in KSeF and you have not booked yet.

iFirma API: https://cotlet.dev/docs/api/ifirma.md

`GET https://cotlet.dev/api/v1/ifirma/ksef-purchase-invoices`

Access: read.

Downloads new purchase invoices from KSeF into the "Faktury z KSeF" list and returns them. Each item has the seller document number, KSeF number, document type, seller NIP, issue date, and net and gross amounts. The date is the seller issue date, not the date sent to KSeF. Documents already booked are not returned.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `issued_from` | string | yes | YYYY-MM-DD, the first seller issue date to download. |

## Request

**cURL**

```bash
curl "https://cotlet.dev/api/v1/ifirma/ksef-purchase-invoices?issued_from=issued+from" \
  -H "Authorization: Bearer $COTLET_API_KEY"
```

**Python**

```python
result = client.call("ifirma", "list_ksef_purchase_invoices", {"issued_from":"issued from"})
```

**Node.js**

```js
const result = await cotlet.call('ifirma', 'list_ksef_purchase_invoices', {"issued_from":"issued from"});
```

**CLI**

```bash
cotlet call ifirma list_ksef_purchase_invoices --data '{"issued_from":"issued from"}'
```

## Example response

```json
{
  "invoices": [
    {
      "ksef_number": "7010003987-20261012-AB12CD34EF56-7A",
      "seller_number": "FV 118/2026",
      "type": "vat",
      "seller_nip": "7010003987",
      "issue_date": "2026-10-12",
      "net": 650.41,
      "gross": 800
    },
    {
      "ksef_number": "5252248481-20261010-9F8E7D6C5B4A-12",
      "seller_number": "ZAL 7/2026",
      "type": "advance",
      "seller_nip": "5252248481",
      "issue_date": "2026-10-10",
      "net": 2000,
      "gross": 2460
    }
  ]
}
```

Previous: [List contractors](https://cotlet.dev/docs/api/ifirma/list_contractors.md)
Next: [Create contractor](https://cotlet.dev/docs/api/ifirma/create_contractor.md)

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## For AI agents: sign your user up

Is your user asking you to sign them up for Cotlet? You can do it for them, no account or key needed.

1. Read the fields and their allowed values: GET https://cotlet.dev/api/v1/access-requests
2. Ask the user for each value: email, apps, what you will do with them. If they leave the password to you, generate a strong one and show it to them.
3. Show the user what you will send, then POST it as JSON to https://cotlet.dev/api/v1/access-requests.

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