tx_search - Cosmos

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

Searches transactions matching a CometBFT event query. Queries use the Tendermint event query syntax (e.g. transfer.recipient='cosmos1...'). Paginated — use page and per_page to traverse large result sets.

Parameters

Parameter

Type

Required

Description

query

string

Yes

Event query string (see CometBFT query syntax)

prove

boolean

Include Merkle proofs (default: false)

page

integer

Page number (default: 1)

per_page

integer

Results per page (default: 30, max: 100)

order_by

string

Sort order: "asc" or "desc" (default: "asc")

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": "tx_search",
    "params": {
        "query": "transfer.recipient='cosmos1t6rlgf80jd8tanpnnvmmxfqdcm9cn7wctrs7hk'",
        "prove": false,
        "page": 1,
        "per_page": 30,
        "order_by": "desc"
    },
    "id": "getblock.io"
}'

# URI over HTTP GET (alternate, for simple methods)
curl --location --request GET 'https://go.getblock.io/<ACCESS-TOKEN>/tx_search?query="transfer.recipient='cosmos1t6rlgf80jd8tanpnnvmmxfqdcm9cn7wctrs7hk'"&prove=false&page=1&per_page=30&order_by="desc"'

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "tx_search",
    "params": {
        "query": "transfer.recipient='cosmos1t6rlgf80jd8tanpnnvmmxfqdcm9cn7wctrs7hk'",
        "prove": false,
        "page": 1,
        "per_page": 30,
        "order_by": "desc"
    },
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data, null, 2)))
    .catch(error => console.log(error));

import requests
import json

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

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "tx_search",
    "params": {
        "query": "transfer.recipient='cosmos1t6rlgf80jd8tanpnnvmmxfqdcm9cn7wctrs7hk'",
        "prove": false,
        "page": 1,
        "per_page": 30,
        "order_by": "desc"
    },
    "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": "tx_search",
        "params": {
                "query": "transfer.recipient='cosmos1t6rlgf80jd8tanpnnvmmxfqdcm9cn7wctrs7hk'",
                "prove": false,
                "page": 1,
                "per_page": 30,
                "order_by": "desc"
        },
        "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": {
        "txs": [
            {
                "hash": "B5C8E4F1A6D3B9C2E5F8A1D4B7C0E3F6A9D2B5C8E1F4A7D0B3C6E9F2A5D8B1C4",
                "height": "23456789",
                "index": 0,
                "tx_result": {
                    "code": 0,
                    "gas_used": "67890",
                    "events": []
                },
                "tx": "Co0BCooBChwvY29zbW9zLmJhbmsudjFiZXRhMS5Nc2dTZW5kEmoKLWNvc21vczF0NnJsZ2Y4MGpkOHRhbnBubnZtbXhmcWRjbTljbjd3Y3RyczdoaxItY29zbW9zMWdoZDc1M3NoamVjajRpdjJ4Mmk4eHJrenphbnpqdnZjMjJ4MmtuGgoKBXVhdG9tEgExEnIKWg=="
            }
        ],
        "total_count": "1"
    }
}

Response Parameters

Field

Type

Description

result.txs

array

Matching transactions

result.txs[].hash

string

Transaction hash

result.txs[].height

string

Block height

result.txs[].tx_result.events

array

Events emitted by the transaction

result.total_count

string

Total matching transactions across all pages

Use Cases

Account activity history (queries like transfer.recipient='cosmos1...')
Staking event tracking (delegate.validator='cosmosvaloper1...')
IBC packet history (recv_packet.packet_src_channel='channel-N')
Gov proposal vote auditing (proposal_vote.proposal_id='123')

Error Handling

Status Code

Error Message

Cause

403

Forbidden

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

-32602

Invalid query

The event query string is malformed or references unknown event types

SDK Integration

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": "tx_search", "params": {"query": "transfer.recipient='cosmos1t6rlgf80jd8tanpnnvmmxfqdcm9cn7wctrs7hk'", "prove": false, "page": 1, "per_page": 30, "order_by": "desc"}});
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>/', json={
    'jsonrpc': '2.0',
    'id': 'getblock.io',
    'method': 'tx_search',
    'params': {"query": "transfer.recipient='cosmos1t6rlgf80jd8tanpnnvmmxfqdcm9cn7wctrs7hk'", "prove": false, "page": 1, "per_page": 30, "order_by": "desc"}
}})
print(response.json())

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