Get claim status
curl --request GET \
--url https://relayer.api.umbraprivacy.com/v1/claims/{request_id}import requests
url = "https://relayer.api.umbraprivacy.com/v1/claims/{request_id}"
response = requests.get(url)
print(response.text)const options = {method: 'GET'};
fetch('https://relayer.api.umbraprivacy.com/v1/claims/{request_id}', 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://relayer.api.umbraprivacy.com/v1/claims/{request_id}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://relayer.api.umbraprivacy.com/v1/claims/{request_id}"
req, _ := http.NewRequest("GET", url, nil)
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://relayer.api.umbraprivacy.com/v1/claims/{request_id}")
.asString();require 'uri'
require 'net/http'
url = URI("https://relayer.api.umbraprivacy.com/v1/claims/{request_id}")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
response = http.request(request)
puts response.read_body{
"request_id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"status": "awaiting_callback",
"variant": "encrypted_balance",
"resolved_variant": "claim_into_existing_shared_balance_v11",
"tx_signature": "5KtP...base58...",
"callback_signature": null,
"computation_account": "Comp...base58...",
"failure_reason": null,
"created_at": "2026-03-31T12:00:00Z",
"updated_at": "2026-03-31T12:00:15Z"
}Relayer API
Burn Status
Poll the status of a submitted burn request. The wire path is /v1/claims/ (legacy).
Get claim status
curl --request GET \
--url https://relayer.api.umbraprivacy.com/v1/claims/{request_id}import requests
url = "https://relayer.api.umbraprivacy.com/v1/claims/{request_id}"
response = requests.get(url)
print(response.text)const options = {method: 'GET'};
fetch('https://relayer.api.umbraprivacy.com/v1/claims/{request_id}', 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://relayer.api.umbraprivacy.com/v1/claims/{request_id}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://relayer.api.umbraprivacy.com/v1/claims/{request_id}"
req, _ := http.NewRequest("GET", url, nil)
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://relayer.api.umbraprivacy.com/v1/claims/{request_id}")
.asString();require 'uri'
require 'net/http'
url = URI("https://relayer.api.umbraprivacy.com/v1/claims/{request_id}")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
response = http.request(request)
puts response.read_body{
"request_id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"status": "awaiting_callback",
"variant": "encrypted_balance",
"resolved_variant": "claim_into_existing_shared_balance_v11",
"tx_signature": "5KtP...base58...",
"callback_signature": null,
"computation_account": "Comp...base58...",
"failure_reason": null,
"created_at": "2026-03-31T12:00:00Z",
"updated_at": "2026-03-31T12:00:15Z"
}The SDK polls this endpoint automatically with a 3-second interval and a 120-second timeout. You only need to call it directly if building a custom integration.
The wire path retains the legacy
/v1/claims/{request_id} segment. In V18 SDK code you call it via the relayer client’s pollClaimStatus method (or its pollBurnStatus alias when plugged into a burner factory’s relayer dep).Polling recommendations
- Poll every 3 seconds (the SDK default).
- Stop polling when status reaches a terminal state:
completed,failed, ortimed_out. - Maximum recommended polling duration: 120 seconds.
- If status is
timed_out, the MPC callback was not received within the expected block window — the callback may still arrive later. Verify the nullifier on-chain before re-submitting. - If
failure_reasoncontainsNullifierAlreadyBurnt, treat the request as idempotent success — the SDK’s burner factory does this automatically.
Burn lifecycle
A burn request progresses through these statuses in order:received— accepted by the relayer API.validating— preflight checks running (Merkle root, nullifiers, account state).offsets_reserved— nullifier offsets reserved for deduplication.building_tx— transactions being constructed.tx_built— transactions ready.submitting— sending to Solana.submitted— confirmed on-chain.awaiting_callback— waiting for Arcium MPC callback.callback_received— MPC callback detected.finalizing— running cleanup transactions.completed— burn successful.failed— error occurred (seefailure_reasonfield).timed_out— MPC callback deadline exceeded.
Path Parameters
UUID returned from POST /v1/claims.
Response
Claim status
Available options:
received, validating, offsets_reserved, building_tx, tx_built, submitting, submitted, awaiting_callback, callback_received, finalizing, completed, failed, timed_out Available options:
encrypted_balance, public_balance Specific on-chain instruction variant selected by preflight validator.
Solana transaction signature of the claim instruction.
Solana transaction signature of the Arcium MPC callback.
Base58-encoded computation account address.
Error message if status is failed.