Check Lightning Network node capacity by visiting 1ML.com for a network-wide overview, or by using a blockchain explorer like OKLink to input a node's public key for specific details. These two channels cover all your needs, from the macro to the micro.
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Check Total Network Capacity: 1ML.com
If you want to know how much BTC is currently locked across the entire Lightning Network, plus the number of nodes and channels, 1ML is all you need.
Step 1: Open 1ML.com
What to do: Visit 1ML.com.
How to do it: Type 1ml.com directly into your browser — no sign-up or wallet connection required.
When you're done: After the page loads, the top of the homepage shows three key numbers: Capacity, Nodes, and Channels.
1ML is one of the most widely used data aggregation sites for the Lightning Network, offering a panoramic view of the network and trend charts.
Check a Single Node's Capacity: Blockchain Explorer
If you run your own Lightning node or want to look up a specific node's capacity, a blockchain explorer like OKLink is more convenient.
Step 2: Find the node's Public Key
What to do: Obtain the public key of the Lightning node you want to query.
How to do it:
Case A (checking your own node): Find the node public key in your Lightning node client (e.g., LND, c-lightning). It is usually a 66-character hex string starting with 02 or 03.
Case B (checking someone else's node): Search the node's name on a site like 1ML or Amboss and copy its public key.
When you're done: You have a valid node public key in hand.
Step 3: Search with the public key on OKLink
What to do: Use OKLink's Lightning Network explorer to see the node's detailed data.
How to do it:
Open OKLink's Lightning Network node query page.
Paste the public key into the search box and press Enter.
Look at the "Node Capacity" field on the results page.
When you're done: The page displays the node's capacity (BTC), rank, number of active channels, and other in-depth information.
OKLink's Lightning Network node detail page shows specific capacity (BTC), percentage of total network capacity, active channel count, and connected nodes.
Prerequisite: No prerequisites are needed for 1ML. To query an individual node, you must know its public key.
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Data Discrepancies Between Different Platforms
Different websites may show slightly different total network capacity statistics. This is due to differences in data sampling times, node discovery mechanisms, and how active nodes are defined. In the early days of Lightning Network, capacity data differed noticeably between 1ML and bitcoinvisuals. It's recommended to cross-reference data from 1ML and mainstream on-chain explorers.
Risk note: Node capacity is public on-chain information that anyone can look up. But capacity alone cannot directly determine a node's reliability or routing ability — you also need to evaluate factors such as uptime, number of channels, and channel distribution.
How to verify the queried data after completing the steps above
After checking total capacity on 1ML, search the same node public key on OKLink or Amboss and compare whether the displayed capacity figures are roughly consistent. If they match, the data is reliable. If you next want to assess whether the node is worth opening channels with, go to Amboss and check its "Score" and "Uptime" history charts.
