---
title: "Changes to Add a rail to a counterparty"
method: POST
path: "/counterparties/{id}/rails"
---

# Changes to Add a rail to a counterparty

`POST /counterparties/{id}/rails`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 48 revisions.

- **2026-10-16** `f849b9ed72e2`: 1 info
- **2026-09-29** `75eb76762c83`: 3 warning, 1 info
- **2026-09-15** `e15a743d22d5`: 2 info

## Changes

- **2026-10-16** `f849b9ed72e2`: 1 info
  - added the new optional request property `oneOf[subschema #2]/disabledNetworks`
- **2026-09-29** `75eb76762c83`: 3 warning, 1 info
  - added the new `arc-testnet` enum value to the `rail/oneOf[subschema #2]/disabledNetworks/items/` response property for the response status `201`
  - added the new `arc-testnet` enum value to the `rail/oneOf[subschema #2]/network` response property for the response status `201`
  - added the new `arc-testnet` enum value to the `rail/oneOf[subschema #2]/preferredNetwork` response property for the response status `201`
  - added the new `arc-testnet` enum value to the request property `oneOf[subschema #2]/network`
- **2026-09-15** `e15a743d22d5`: 2 info
  - added the optional property `rail/oneOf[subschema #2]/disabledNetworks` to the response with the `201` status
  - added the optional property `rail/oneOf[subschema #2]/preferredNetwork` to the response with the `201` status

---

[Operation](https://skmtc.dev/catena/apis/catena-api/docs/counterparties/:id/rails/post.md) · [API](https://skmtc.dev/catena/apis/catena-api.md) · [Page](https://skmtc.dev/catena/apis/catena-api/changes/counterparties/:id/rails/post)