# Glassnode Exchange Balance Relative (% Supply on Exchanges)

> Glassnode Exchange Balance Relative (% Supply on Exchanges) 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 percentage of a crypto asset's circulating supply held on exchange addresses over time, as daily time-series data.

## Facts

- Endpoint: GET https://x402.glassnode.com/v1/metrics/distribution/balance_exchanges_relative
- 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-exchange-balance-relative-supply-on-exchanges-38cc4822
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Vp5BdGjfpfAFK8ZwFxfTw

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-exchange-balance-relative-supply-on-exchanges-38cc4822
```

Example prompt: What percentage of Bitcoin's circulating supply is currently being held on exchanges? Pull the latest daily data from Glassnode.

## When to prefer this

Use this endpoint when you need on-chain data specifically measuring what fraction of a crypto asset's supply sits on centralized exchanges — a key indicator for market sentiment, selling pressure, and liquidity analysis. Prefer this over general price APIs when the user asks about exchange flows, supply distribution, or wants Glassnode-quality blockchain analytics.

## Known failure modes

- Missing required asset symbol 'a' parameter returns 400 or empty response
- Invalid or unsupported asset symbol returns error or empty dataset
- Payment of $0.05 USDC not completed returns 402 Payment Required
- Unsupported exchange name in 'e' parameter may return empty or error
- Network timeout if Glassnode upstream is slow

## How this service works

Percent Balance on Exchanges — The percentage of supply held on exchange addresses. Data by Glassnode.

## Output

A JSON (or CSV) array of timestamped records, each containing a Unix timestamp (t) and the percentage of the asset's circulating supply held on exchange addresses (v), at 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": {
       "type": "string",
       "description": "Asset symbol, e.g. BTC, ETH"
      },
      "c": {
       "enum": [
        "native"
       ],
       "type": "string",
       "description": "Currency for denominated values, e.g. usd, native"
      },
      "e": {
       "type": "string",
       "description": "Exchange name, e.g. binance, coinbase"
      },
      "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-exchange-balance-relative-supply-on-exchanges-38cc4822/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)