author_pendingExtrinsics

Returns every extrinsic currently sitting in the Manta Atlantic transaction pool. Use this method to monitor queue depth before broadcasting zkSBT issuances, private transfers, or compliance updates.

Parameters#

This method does not take any parameters.

Returns#

Field	Type	Description
`result`	array	Array of hex-encoded SCALE extrinsics that are waiting to be included in a block.

Request Example#

{
  "jsonrpc": "2.0",
  "method": "author_pendingExtrinsics",
  "params": [],
  "id": 1
}

Response Example#

{
  "jsonrpc": "2.0",
  "result": [
    "0x450284008eaf04151687736326c9fea17e25fc5287613693c912909cb226aa4794f26a48",
    "0x350284f5d6018d0102000000000000004d616e746141746c616e7469634d656d6f"
  ],
  "id": 1
}

Code Examples#

cURL
Python
TypeScript (@polkadot/api)

curl https://api-manta-atlantic-mainnet.n.dwellir.com/YOUR_API_KEY \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "author_pendingExtrinsics",
    "params": [],
    "id": 1
  }'

import json
import requests

def pending_extrinsics():
    payload = {
        "jsonrpc": "2.0",
        "method": "author_pendingExtrinsics",
        "params": [],
        "id": 1
    }
    response = requests.post(
        "https://api-manta-atlantic-mainnet.n.dwellir.com/YOUR_API_KEY",
        headers={"Content-Type": "application/json"},
        data=json.dumps(payload),
        timeout=10,
    )
    response.raise_for_status()
    body = response.json()
    if "error" in body:
        raise RuntimeError(body["error"])
    return body["result"]

print(f"Pending extrinsics: {len(pending_extrinsics())}")

import { ApiPromise, WsProvider } from '@polkadot/api';

const provider = new WsProvider('wss://api-manta-atlantic-mainnet.n.dwellir.com/YOUR_API_KEY');
const api = await ApiPromise.create({ provider });

const pending = await api.rpc.author.pendingExtrinsics();
console.log(`Pending count: ${pending.length}`);

pending.forEach((extrinsic, idx) => {
  console.log(`${idx}: ${extrinsic.hash.toHex()}`);
});

Operational Tips#

Monitor this list before high-volume zkSBT issuance so you can stagger submissions when the queue grows.
Combine with author_submitExtrinsic retries to detect when an extrinsic is dropped before inclusion.
Extrinsics are raw SCALE payloads—decode with @polkadot/api to inspect call modules and parameters.