txpool_status

txpool_status returns the count of pending and queued transactions in an OP Mainnet node's transaction pool — the OP Stack rollup that settles to Ethereum L1 and uses ETH for gas — as two hex-encoded integers under the pending and queued keys. It is the lightweight counterpart to txpool_inspect: instead of listing every transaction, it gives you just the totals, which makes it cheap to poll. Send the call to https://optimism.therpc.io/YOUR_API_KEY (chain ID 10, 0xa) to gauge mempool depth at a glance.

Use cases

• Monitor OP Mainnet mempool depth to detect congestion and tune the priority fee your application attaches to outgoing transactions.
• Feed a dashboard gauge that shows the current pending and queued backlog as a live measure of network load.

Parameters

Diese Methode erwartet keine Parameter. Übergib ein leeres Array [].

Response

Example request

1curl https://optimism.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H "Content-Type: application/json" \
4  -d '{
5    "jsonrpc": "2.0",
6    "method": "txpool_status",
7    "params": [],
8    "id": 1
9  }'

Try it live in the Optimism playground.

Errors & troubleshooting

Common pitfalls

• Part of the txpool namespace, served only by Geth-compatible clients (op-geth); other execution clients may return "method not found".
• The counts are instantaneous snapshots that change with every new block on OP Mainnet's ~2-second cadence, so do not cache them aggressively — re-poll when you need a current reading.

Supported networks

• Mainnet — Chain ID: 10
• Sepolia — Chain ID: 11155420

See also

• txpool_inspect

1curl https://optimism.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H 'Content-Type: application/json' \
4  -d '{"jsonrpc":"2.0","id":1,"method":"txpool_status","params":[]}'