author_pendingExtrinsics

Description#

Returns all extrinsics waiting in the transaction pool. Useful for monitoring congestion, replaying outstanding payloads, or debugging fee issues.

Parameters#

This method does not require parameters.

Response Example (truncated)#

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    "0x2523053d00025002000000000000f0ac0000000000…63155",
    "…"
  ]
}

The array contains SCALE-encoded extrinsics in hex. Decode with polkadot.js or subxt for human-readable fields.

Code Examples#

cURL
Python
JavaScript

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

substrate = SubstrateInterface(url="wss://api-astar.n.dwellir.com/YOUR_API_KEY", ss58_format=5)
extrinsics = substrate.rpc_request('author_pendingExtrinsics', [])['result']
print(len(extrinsics))

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