---
title: "UpgradedConsensusState queries the consensus state that will serve as a trusted kernel for the next version of this chain. It will only be stored at the last height of this chain. UpgradedConsensusState RPC not supported with legacy querier This rpc is deprecated now that IBC has its own replacement (https://github.com/cosmos/ibc-go/blob/2c880a22e9f9cc75f62b527ca94aa75ce1106001/proto/ibc/core/client/v1/query.proto#L54)"
method: GET
path: "/cosmos/upgrade/v1beta1/upgraded_consensus_state/{last_height}"
tags: ["Query"]
---

# UpgradedConsensusState queries the consensus state that will serve as a trusted kernel for the next version of this chain. It will only be stored at the last height of this chain. UpgradedConsensusState RPC not supported with legacy querier This rpc is deprecated now that IBC has its own replacement (https://github.com/cosmos/ibc-go/blob/2c880a22e9f9cc75f62b527ca94aa75ce1106001/proto/ibc/core/client/v1/query.proto#L54)

`GET /cosmos/upgrade/v1beta1/upgraded_consensus_state/{last_height}`

## Request

- Base URL: `https://backend.pay.kiichain.io`
- URL: `https://backend.pay.kiichain.io/cosmos/upgrade/v1beta1/upgraded_consensus_state/{last_height}`
- Auth: one of:
  - API key in header `Authorization`
  - OAuth 2
    - Password
    - Token URL: `https://backend.pay.kiichain.io/users/v1/auth/login` scopes: `accounts.kyc.read`, `accounts.kyc.read:all`

## Response `200`

A successful response.

- object: QueryUpgradedConsensusStateResponse is the response type for the Query/UpgradedConsensusState RPC method.
  - `upgraded_consensus_state` string, byte

## Other responses

- `default`: An unexpected error response.

---

[API](https://skmtc.dev/kiiglobal/apis/kiichain-pay-backend.md) - [All operations](https://skmtc.dev/kiiglobal/apis/kiichain-pay-backend/llms.txt) - [OpenAPI document](https://skmtc.dev/kiiglobal/apis/kiichain-pay-backend/revisions/8951249f5b63?raw)