# Glassnode Realized Cap HODL Waves

> Glassnode Realized Cap HODL Waves 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 HODL Waves weighted by Realized Price, showing each age band's share of USD-denominated cost basis (summing to 100%) for a given crypto asset.

## Facts

- Endpoint: GET https://x402.glassnode.com/v1/metrics/supply/rcap_hodl_waves
- 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-realized-cap-hodl-waves-8646838d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6YIgCSQY20r1oYQX2sPq_

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-realized-cap-hodl-waves-8646838d
```

Example prompt: Pull the Glassnode Realized Cap HODL Waves for BTC in JSON format so I can see how the USD cost basis is distributed across different coin age bands right now.

## When to prefer this

Use this endpoint when you need to understand how the USD cost basis (realized cap) is distributed across different holding-age cohorts — ideal for assessing long-term holder conviction, detecting accumulation or distribution phases, and complementing HODL Wave analysis with dollar-weighted perspective. Prefer this over plain HODL Waves when cost basis magnitude matters, not just coin count.

## Known failure modes

- Missing required 'a' (asset) query parameter returns a 400 error
- Unsupported asset symbol returns empty data or 404
- Payment not provided or insufficient USDC returns 402 Payment Required
- Invalid interval or format enum value returns 400
- Network parameter not applicable to asset returns error or empty response
- Rate limiting may return 429 if too many requests are made

## How this service works

Realized Cap HODL Waves — HODL Waves weighted by Realized Price. Each band reports the share of USD-denominated cost basis held by coins in that age range, and the bands sum to 100% by construction. Data by Glassnode.

## Output

An array of timestamped objects where each entry contains a breakdown object ('o') mapping coin age band labels to their percentage share of the total realized cap, with all bands summing to 100%. Data is daily (24h resolution) and denominated in USD by default.

## 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": {
       "type": "string",
       "description": "Asset symbol, e.g. BTC, ETH"
      },
      "c": {
       "enum": [
        "native"
       ],
       "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"
      },
      "network": {
       "enum": [
        "aggregated",
        "arb",
        "base",
        "eth",
        "opt"
       ],
       "type": "string",
       "description": "Network / blockchain identifier for cross-chain metrics"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "array",
     "items": {
      "type": "object",
      "properties": {
       "o": {
        "type": "object"
       },
       "t": {
        "type": "number"
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/glassnode-realized-cap-hodl-waves-8646838d/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)