# /v1/organization/{}/vpc/{}/peering-connection/{}/user-peer-network-cidrs stops working

Calls to /v1/organization/{}/vpc/{}/peering-connection/{}/user-peer-network-cidrs on Aiven API stopped working on April 30, 2026.

- API: Aiven API (api.aiven.io)
- Kind: Endpoint removal
- Takes effect: April 30, 2026
- Calls after that day: fail
- Calls it hits: `/v1/organization/{}/vpc/{}/peering-connection/{}/user-peer-network-cidrs`
- Source: [Announcement](https://api.aiven.io/doc/openapi.json)
- Page: https://www.okapi.bot/providers/aiven-api/breaking-changes/v1-organization-vpc-peering-connection-user-peer-network-cidrs-stops-working/

## What to use instead

Call /v1/organization/{organization_id}/vpc/{organization_vpc_id}/user-peer-network-cidrs instead (organization-level API).

## Aiven API's words

> The API endpoint /v1/organization/{organization_id}/vpc/{organization_vpc_id}/peering-connection/{peering_connection_id}/user-peer-network-cidrs is deprecated. Use https://api.aiven.io/v1/organization/{organization_id}/vpc/{organization_vpc_id}/user-peer-network-cidrs instead. It will be removed on 2026-04-30.