consensus_params - Cosmos

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

Returns the consensus parameters at a specific height — block size limits, evidence rules, and allowed validator public key types.

Parameters

Parameter	Type	Required	Description
height	integer	No	Block height (defaults to latest)

Request Example

cURL

# JSON-RPC over HTTP POST (canonical)
curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/consensus_params' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "consensus_params",
    "params": {
        "height": 23456789
    },
    "id": "getblock.io"
}'

# URI over HTTP GET (alternate, for simple methods)
curl --location --request GET 'https://go.getblock.io/<ACCESS-TOKEN>/consensus_params?height=23456789'

JavaScript (Axios)

Python (Requests)

Rust (Reqwest)

Response Example

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "block_height": "23456789",
        "consensus_params": {
            "block": {
                "max_bytes": "22020096",
                "max_gas": "-1"
            },
            "evidence": {
                "max_age_num_blocks": "100000",
                "max_age_duration": "172800000000000",
                "max_bytes": "1048576"
            },
            "validator": {
                "pub_key_types": [
                    "ed25519"
                ]
            },
            "version": {
                "app": "0"
            }
        }
    }
}

Response Parameters

Field	Type	Description
result.block_height	string	Block height at which params were sampled
result.consensus_params.block.max_bytes	string	Maximum block size in bytes
result.consensus_params.block.max_gas	string	Maximum gas per block (-1 means unlimited)
result.consensus_params.evidence.max_age_num_blocks	string	Maximum block age for accepting evidence
result.consensus_params.validator.pub_key_types	array of string	Allowed validator key types

Use Cases

• Detecting consensus parameter upgrades

• Sizing transaction batches to fit within block limits

• Compliance tooling that audits chain parameters over time

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

CosmJS

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

const httpClient = new HttpClient('https://go.getblock.io/<ACCESS-TOKEN>/');
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_params", "params": {"height": 23456789}});
console.log(result);

cosmpy / requests