# intake.inline

Add any file Oatmilk should file in one call, for clients that can't upload to a link: filename, mimeType, contentBase64 (the file's bytes in base64, at most 2 MB), idempotencyKey and optional presetKind. Oatmilk checks the bytes, stores them privately and completes the upload, as intake.prepare, the upload and intake.complete do; a file already added returns duplicate: true. Then call intake.classify and intake.process. Retrying with the same key and file is safe. Contributors add receipts only. Larger files use intake.prepare.

`POST /api/v1/accounting/intake.inline`

Permissions: `accounting:read`, `accounting:write` · Roles: admin, finance, contributor · Idempotency key required

MCP tool: `accounting_intake_inline`

## Fields

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `filename` | string | Yes | The file's name, including its extension. 1–255 characters. |
| `mimeType` | enum | Yes | The file's type, such as image/jpeg or application/pdf. One of: `application/pdf`, `image/jpeg`, `image/png`, `image/webp`, `image/heic`, `image/heif`, `message/rfc822`, `text/csv`, `text/plain`, `text/markdown`, `application/vnd.openxmlformats-officedocument.wordprocessingml.document`, `application/vnd.openxmlformats-officedocument.spreadsheetml.sheet`. |
| `contentBase64` | string | Yes | The file's exact bytes, encoded as base64. 4–2796204 characters. |
| `presetKind` | enum |  | One of: `receipt`, `vendor_bill`, `issued_invoice`, `bank_statement`, `contractor_agreement`, `tax_document`, `company_document`, `other`. |
| `idempotencyKey` | string | Yes | Any unique text you generate once per intended change, so a retried request only happens once. Send it as the Idempotency-Key header instead if you prefer; if you send both they must match. 8–200 characters. |

## Example request

```bash
curl https://app.getoatmilk.com/api/v1/accounting/intake.inline \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "filename": "receipt.pdf",
  "mimeType": "application/pdf",
  "contentBase64": "SGVsbG8sIE9hdG1pbGsh"
}'
```

Reference page: https://app.getoatmilk.com/docs/api/intake.inline