# Glassnode Spent Volume Age Bands (SVAB)

> Glassnode Spent Volume Age Bands (SVAB) 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 a breakdown of Bitcoin on-chain transfer volume segmented by the age of coins being moved, as percentage bands.

## Facts

- Endpoint: GET https://x402.glassnode.com/v1/metrics/indicators/svab
- 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-spent-volume-age-bands-svab-7e63e959
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mle2Oiy7NT9vfJJNG3spl

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-spent-volume-age-bands-svab-7e63e959
```

Example prompt: Pull the Glassnode Spent Volume Age Bands (SVAB) data for Bitcoin in JSON format so I can see what percentage of on-chain transfer volume is coming from coins of different ages.

## When to prefer this

Use this endpoint when you need to understand the behavioral composition of Bitcoin on-chain spending — specifically which age cohorts of coins are being moved. Ideal for analysts studying long-term holder activity, detecting capitulation or distribution events, or tracking HODL wave dynamics. Prefer this over raw transfer volume endpoints when coin age context is critical.

## Known failure modes

- Missing required 'a' query parameter (asset) returns 400 error
- Invalid asset symbol (only BTC supported) returns validation error
- Payment not provided or insufficient USDC balance triggers 402 Payment Required
- Network or upstream Glassnode data unavailability returns 503
- Invalid format or interval enum value causes request rejection

## How this service works

Spent Volume Age Bands (SVAB) — Spent Volume Age Bands (SVAB) is a breakdown of on-chain transfer volume by the age of the coins being moved. Each band represents the percentage of spent volume that was previously moved within the time period denoted in the legend. Data by Glassnode.

## Output

Returns an array of timestamped objects, each containing an object with percentage values for each coin age band (e.g. 1d-1w, 1w-1m, 1m-3m, etc.), showing how on-chain transfer volume is distributed across coin age cohorts for BTC over a 24-hour resolution.

## 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"
       ],
       "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": {
       "o": {
        "type": "object"
       },
       "t": {
        "type": "number"
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/glassnode-spent-volume-age-bands-svab-7e63e959/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)