---
title: "Changes to Add a Shippo carrier account"
method: POST
path: "/carrier_accounts/register/new"
---

# Changes to Add a Shippo carrier account

`POST /carrier_accounts/register/new`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 5 of 14 revisions.

- **2026-10-28** `0eab5a94b0c3`: 1 info
- **2026-10-27** `da10ecb21187`: 1 breaking
- **2026-07-12** `7e1ec201b515`: 1 breaking, 1 info
- **2026-04-11** `ed0d1853e790`: 1 breaking, 10 info
- **2025-04-26** `1fe094a5ded6`: 15 breaking, 1 info

## Changes

- **2026-10-28** `0eab5a94b0c3`: 1 info
  - added the new optional `header` request parameter `SHIPPO-ACCOUNT-ID`
- **2026-10-27** `da10ecb21187`: 1 breaking
  - added `#/components/schemas/UPSConnectExistingOwnAccountStreamlinedParameters` to the `allOf[#/components/schemas/CarrierAccountBase]/parameters` response property `oneOf` list for the response status `201`
- **2026-07-12** `7e1ec201b515`: 1 breaking, 1 info
  - for the `header` request parameter `SHIPPO-API-VERSION`, default value `2018-02-08` was added
  - removed the `true` enum value from the `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/use_multi_factor_registration` response property for the response status `201`
- **2026-04-11** `ed0d1853e790`: 1 breaking, 10 info
  - removed `#/components/schemas/CarrierAccountSendleCreateRequest` from the request body `oneOf` list
  - added `royal_mail, royal_mail_sf` mapping keys to the request discriminator
  - removed `sendle` mapping keys from the request discriminator
  - added `#/components/schemas/CarrierAccountRoyalMailCreateRequest, #/components/schemas/CarrierAccountRoyalMailSfCreateRequest` to the request body `oneOf` list
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_amount` to the response with the `201` status
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_currency` to the response with the `201` status
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_date` to the response with the `201` status
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_invoice_number` to the response with the `201` status
  - added the optional property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_pin` to the response with the `201` status
  - added the required property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/use_multi_factor_registration` to the response with the `201` status
  - added the required property `allOf[#/components/schemas/CarrierAccountBase]/parameters/oneOf[subschema #2: FedEx account parameters]/verification_option` to the response with the `201` status
- **2025-04-26** `1fe094a5ded6`: 15 breaking, 1 info
  - the `carrier` request property const value `canada_post` was added
  - the `carrier` request property const value `chronopost` was added
  - the `carrier` request property const value `colissimo` was added
  - the `carrier` request property const value `correos` was added
  - the `carrier` request property const value `deutsche_post` was added
  - the `carrier` request property const value `dhl_express` was added
  - the `carrier` request property const value `dpd_de` was added
  - the `carrier` request property const value `dpd_uk` was added
  - the `carrier` request property const value `fedex` was added
  - the `carrier` request property const value `hermes_uk` was added
  - the `carrier` request property const value `mondial_relay` was added
  - the `carrier` request property const value `poste_italiane` was added
  - the `carrier` request property const value `sendle` was added
  - the `carrier` request property const value `ups` was added
  - the `carrier` request property const value `usps` was added
  - added request discriminator

---

[Operation](https://skmtc.dev/goshippo/apis/shippo-external-api/docs/carrier_accounts/register/new/post.md) - [API](https://skmtc.dev/goshippo/apis/shippo-external-api.md) - [Page](https://skmtc.dev/goshippo/apis/shippo-external-api/changes/carrier_accounts/register/new/post)