net_listening

net_listening answers a narrow question about an Ethereum node: is it open to incoming peer-to-peer connections on the devp2p network right now? An ETH execution client gossips blocks and transactions with other nodes over that P2P layer, and this method reports whether the listener for it is up. Send the request to https://ethereum.therpc.io/YOUR_API_KEY on mainnet (chain ID 1) and you get back a bare boolean: true if the node is accepting peer connections, false if it is not. It is one of the lightest calls in the JSON-RPC surface, taking no parameters and touching no chain state.

Use cases

• Use it as a cheap liveness probe in monitoring scripts that watch a fleet of Ethereum execution nodes.
• Verify the P2P layer is up before kicking off automated jobs that depend on the node seeing fresh mainnet blocks and pending transactions.

Parameters

此方法不需要任何参数，传入空数组 [] 即可。

Response

Example request

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

Try it live in the Ethereum playground.

Errors & troubleshooting

Common pitfalls

• true only means the listener is open, not that anyone is connected. A node can be listening with zero peers and still be effectively isolated from the Ethereum network, so confirm real connectivity with net_peerCount.
• Behind a managed RPC pool, this call reflects the gateway, not whichever backend node happens to serve your request. It will usually report true regardless of any single node's underlying P2P state.

Supported networks

• Mainnet — Chain ID: 1
• Sepolia — Chain ID: 11155111

See also

• net_peerCount
• net_version

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