consensus_state - Cosmos

Example code for the consensus_state JSON-RPC method. Complete guide on how to use consensus_state JSON-RPC in GetBlock Web3 documentation.

Returns the current consensus state — the round, step, and votes the node has observed. Useful for diagnosing consensus stalls or observing the consensus process in real time.

Parameters

None

Request Example

# JSON-RPC over HTTP POST (canonical)
curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "consensus_state",
    "params": [],
    "id": "getblock.io"
}'

# URI over HTTP GET (alternate, for simple methods)
curl --location --request GET 'https://go.getblock.io/<ACCESS-TOKEN>/consensus_state'

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "consensus_state",
    "params": [],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();

    let payload = json!({
        "jsonrpc": "2.0",
        "method": "consensus_state",
        "params": [],
        "id": "getblock.io"
});

    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);

    Ok(())
}

Response Example

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "round_state": {
            "height/round/step": "23456789/0/1",
            "start_time": "2026-05-26T13:42:18.5273Z",
            "proposal_block_hash": "6E2A2A6FE7A5B4C2D4E6F8A0B2C4D6E8F0A2C4E6F8B0D2E4F6A8C0E2F4B6D8E0",
            "locked_block_hash": "",
            "valid_block_hash": "",
            "height_vote_set": []
        }
    }
}

Response Parameters

Field

Type

Description

result.round_state['height/round/step']

string

Current height, round, and step in the consensus state machine

result.round_state.start_time

string

ISO 8601 timestamp when the current round began

result.round_state.proposal_block_hash

string

Hash of the currently proposed block (may be empty if no proposal yet)

result.round_state.height_vote_set

array

Per-round vote sets

Use Cases

Diagnosing consensus halts
Validator operations monitoring
Research into consensus liveness

Error Handling

Status Code

Error Message

Cause

404

Not Found

Missing or invalid <ACCESS-TOKEN>

-32602

Invalid params

Request parameters are missing or malformed

-32603

Internal error

Server-side error while processing the request

429

Too Many Requests

Rate limit exceeded for your plan

SDK Integration

import { Tendermint37Client, HttpClient } from '@cosmjs/tendermint-rpc';

const httpClient = new HttpClient('https://go.getblock.io/<ACCESS-TOKEN>/consensus_params');
const client = await Tendermint37Client.create(httpClient);

// CosmJS exposes typed methods on the client (e.g. client.status(), client.block()).
// For raw access to any RPC method:
const result = await httpClient.execute({"jsonrpc": "2.0", "id": "getblock.io", "method": "consensus_state", "params": []});
console.log(result);

# cosmpy wraps Cosmos REST / gRPC. For raw CometBFT RPC access, use requests.
import requests

response = requests.post('https://go.getblock.io/<ACCESS-TOKEN>/consensus_params', json={
    'jsonrpc': '2.0',
    'id': 'getblock.io',
    'method': 'consensus_state',
    'params': []
}})
print(response.json())

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