Close Account

curl --request POST \
  --url https://api.altude.so/api/Account/close \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <x-api-key>' \
  --data '
{
  "signedTransaction": "<string>"
}
'

import requests

url = "https://api.altude.so/api/Account/close"

payload = { "signedTransaction": "<string>" }
headers = {
    "X-API-Key": "<x-api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<x-api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({signedTransaction: '<string>'})
};

fetch('https://api.altude.so/api/Account/close', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.altude.so/api/Account/close",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'signedTransaction' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <x-api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.altude.so/api/Account/close"

	payload := strings.NewReader("{\n  \"signedTransaction\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-Key", "<x-api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.altude.so/api/Account/close")
  .header("X-API-Key", "<x-api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"signedTransaction\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.altude.so/api/Account/close")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<x-api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"signedTransaction\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "status": "Queued",
  "message": "Account close transaction queued successfully.",
  "signature": "5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d"
}

POST

Account

Close Account

curl --request POST \
  --url https://api.altude.so/api/Account/close \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <x-api-key>' \
  --data '
{
  "signedTransaction": "<string>"
}
'

import requests

url = "https://api.altude.so/api/Account/close"

payload = { "signedTransaction": "<string>" }
headers = {
    "X-API-Key": "<x-api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<x-api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({signedTransaction: '<string>'})
};

fetch('https://api.altude.so/api/Account/close', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.altude.so/api/Account/close",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'signedTransaction' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <x-api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.altude.so/api/Account/close"

	payload := strings.NewReader("{\n  \"signedTransaction\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-Key", "<x-api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.altude.so/api/Account/close")
  .header("X-API-Key", "<x-api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"signedTransaction\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.altude.so/api/Account/close")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<x-api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"signedTransaction\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "status": "Queued",
  "message": "Account close transaction queued successfully.",
  "signature": "5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d"
}

Close an Associated Token Account (ATA) by submitting a signed transaction.

headers

string

required

The API key created from Altude

Request Body

string

required

The base64-encoded signed transaction to close the ATA

Build `signedTransaction` (minimum)

Use this right before calling POST /Account/close.

Demo flow only. Never put fee payer private keys in frontend/client code. Keep signer keys on a trusted server-side signer.

import { Connection, Keypair, PublicKey, Transaction } from '@solana/web3.js';
import {
  TOKEN_PROGRAM_ID,
  createCloseAccountInstruction,
  getAccount,
  getAssociatedTokenAddress
} from '@solana/spl-token';

const apiKey = 'your-api-key';
const owner = new PublicKey('OWNER_PUBLIC_KEY');
const mint = new PublicKey('MINT_PUBLIC_KEY');
const feePayerSecret = [/* Solana secret key: array of 64 numbers (0-255) */];

function toBase64(bytes: Uint8Array) {
  let binary = '';
  const chunkSize = 0x8000;
  for (let i = 0; i < bytes.length; i += chunkSize) {
    binary += String.fromCharCode(...bytes.subarray(i, i + chunkSize));
  }
  return btoa(binary);
}

const cfg = await fetch('https://api.altude.so/api/Transaction/config', {
  headers: { 'X-API-Key': apiKey }
}).then((r) => r.json());

const connection = new Connection(cfg.RpcUrl, 'confirmed');
const feePayer = new PublicKey(cfg.FeePayer);
const ata = await getAssociatedTokenAddress(mint, owner);
const ataAccount = await getAccount(connection, ata);

if (!ataAccount.closeAuthority?.equals(feePayer)) {
  throw new Error('Close authority must match configured fee payer');
}

const tx = new Transaction();
tx.feePayer = feePayer;
tx.add(createCloseAccountInstruction(ata, feePayer, feePayer, [], TOKEN_PROGRAM_ID));
tx.recentBlockhash = (await connection.getLatestBlockhash('finalized')).blockhash;
tx.partialSign(Keypair.fromSecretKey(Uint8Array.from(feePayerSecret)));

const signedTransaction = toBase64(
  tx.serialize({ requireAllSignatures: false })
);

await fetch('https://api.altude.so/api/Account/close', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': apiKey
  },
  body: JSON.stringify({ signedTransaction })
});

Response

string

The current state of the account close request

string

A message describing the result of queuing the account close transaction

string

The transaction signature

{
  "status": "Queued",
  "message": "Account close transaction queued successfully.",
  "signature": "5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d"
}

API Documentation

Gas Station API

Converting from Kinetic

Close Account

headers

Request Body

Build `signedTransaction` (minimum)

Response

​headers

​Request Body

​Build signedTransaction (minimum)

​Response

headers

Request Body

Build `signedTransaction` (minimum)

Response