# Glassnode Lightning Network Capacity Sum

> Glassnode Lightning Network Capacity Sum is a paid API for AI agents from x402.glassnode.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns the total BTC amount locked in the Lightning Network as a time series metric via Glassnode on-chain analytics.

## Facts

- Endpoint: GET https://x402.glassnode.com/v1/metrics/lightning/network_capacity_sum
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/glassnode-lightning-network-capacity-sum-899a442c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9bpZfeykQ50lE_aICYhee

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability glassnode-lightning-network-capacity-sum-899a442c
```

Example prompt: Can you pull the total BTC capacity locked in the Lightning Network right now? I want the Glassnode metric in native BTC denomination at 24h resolution.

## When to prefer this

Use this endpoint when you need authoritative, time-series data on the total BTC locked in the Bitcoin Lightning Network sourced from Glassnode's on-chain analytics. Prefer this over generic crypto APIs when you need reliable, research-grade layer-2 capacity metrics specifically for Lightning Network analysis, trend monitoring, or building dashboards tracking Lightning adoption.

## Known failure modes

- Missing required 'a' parameter (asset) returns a 400 validation error
- Invalid enum value for interval, currency, or format returns an error
- Payment not included or insufficient USDC balance results in a 402 Payment Required response
- Rate limiting may occur if called excessively without valid payment
- Data may be delayed or unavailable for very recent timestamps

## How this service works

Lightning Network Capacity — The total amount locked in the Lightning Network. Data by Glassnode.

## Output

An array of time-series data points, each containing a Unix timestamp (t) and the total BTC value locked in the Lightning Network (v) at that point in time. Data is sourced from Glassnode and denominated in native BTC or USD depending on the 'c' parameter.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "a"
     ],
     "properties": {
      "a": {
       "enum": [
        "BTC"
       ],
       "type": "string",
       "description": "Asset symbol, e.g. BTC, ETH"
      },
      "c": {
       "enum": [
        "native",
        "usd"
       ],
       "type": "string",
       "description": "Currency for denominated values, e.g. usd, native"
      },
      "f": {
       "enum": [
        "csv",
        "json"
       ],
       "type": "string",
       "description": "Response format: json or csv"
      },
      "i": {
       "enum": [
        "24h"
       ],
       "type": "string",
       "description": "Time interval / resolution, e.g. 24h, 1w, 1month"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "array",
     "items": {
      "type": "object",
      "properties": {
       "t": {
        "type": "number"
       },
       "v": {
        "type": "number"
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/glassnode-lightning-network-capacity-sum-899a442c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.glassnode.com](https://www.zero.xyz/host/x402.glassnode.com/llms.txt)