> For the complete documentation index, see [llms.txt](https://docs.kaiko.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kaiko.com/rest-api/monitoring-solutions/kaiko-market-explorer/supply-and-market-cap/supply-per-blockchain.md).

# Supply Per Blockchain

## What is this endpoint for?

This endpoint receives the supply of an asset on a single blockchain, including circulating supply and market capitalization where available.

To retrieve supply across all chains for an asset, use the [Aggregated Supply](/rest-api/monitoring-solutions/kaiko-market-explorer/supply-and-market-cap/aggregated-supply.md) endpoint with the `blockchain` query parameter, or call this endpoint once per chain.

### Endpoint

```
https://us.market-api.kaiko.io/v2/data/supply.v2/blockchain-level/{blockchain}/{asset}
```

### Parameters

<table><thead><tr><th width="148.98828125">Parameter</th><th width="87.08984375">Required</th><th>Description</th><th>Example</th></tr></thead><tbody><tr><td><code>blockchain</code></td><td>Yes</td><td>Normalized blockchain identifier. Common values: <code>ethereum</code>, <code>solana</code>, <code>polygon</code>, <code>arbitrum</code>, <code>canton</code>.</td><td><code>ethereum</code></td></tr><tr><td><code>asset</code></td><td>Yes</td><td>The desired asset <code>code</code>. See <a href="/pages/5iH1qlIc7aNEOOci4yMw">Asset codes</a>.</td><td><code>usdc</code></td></tr><tr><td><code>start_time</code></td><td>No</td><td>Starting time in ISO 8601 (inclusive).</td><td><code>2026-04-14T00:00:00.000Z</code></td></tr><tr><td><code>end_time</code></td><td>No</td><td>Ending time in ISO 8601 (exclusive).</td><td><code>2026-04-16T00:00:00.000Z</code></td></tr><tr><td><code>sort</code></td><td>No</td><td>Sort direction by timestamp (<code>asc</code> / <code>desc</code>). Default: <code>desc</code>.</td><td><code>desc</code></td></tr><tr><td><code>page_size</code></td><td>No</td><td>See <a href="https://claude.ai/chat/fd04e826-1b1b-402e-8db2-e11715d484ad#">Pagination</a>. Minimum: <code>1</code> Maximum: <code>1000</code> Default: <code>100</code>.</td><td><code>100</code></td></tr></tbody></table>

### Fields

| Field                | Description                                                         | Example          |
| -------------------- | ------------------------------------------------------------------- | ---------------- |
| `timestamp`          | Timestamp at which the interval begins                              | `1744848000`     |
| `asset`              | Asset                                                               | `usdc`           |
| `blockchain`         | Blockchain name                                                     | `ethereum`       |
| `total_supply`       | Total supply on this chain                                          | `28535000000.00` |
| `circulating_supply` | Circulating supply on this chain. `null` for Canton instruments.    | `28535000000.00` |
| `market_cap`         | Market capitalization on this chain. `null` for Canton instruments. | `28535000000.00` |

### Request examples

{% tabs %}
{% tab title="cURL" %}

```bash
curl --request GET \
  --url 'https://us.market-api.kaiko.io/v2/data/supply.v2/blockchain-level/canton/cbtc?start_time=2026-05-13T00:00:00Z&end_time=2026-05-13T23:59:59Z&page_size=10&sort=desc' \
  --header 'Accept: application/json' \
  --header 'X-Api-Key: KAIKO_API_KEY'
```

{% endtab %}

{% tab title="Python" %}

```python
import http.client
import json

# Enter your Kaiko API Key
api_key = "KAIKO_API_KEY"
api_host = "us.market-api.kaiko.io"
api_base_endpoint = "/v2/data/supply.v2/blockchain-level/canton/cbtc"
# Start of mandatory parameter configuration
mandatory_params = {

}
# End of mandatory parameter configuration
# Start of optional parameter configuration
optional_params = {
    'start_time':'2026-05-13T00:00:00Z',
    'end_time':'2026-05-13T23:59:59Z',
    'page_size':10,
    'sort':'desc'
}
# End of optional parameter configuration
conn = http.client.HTTPSConnection(api_host)
headers = {
    "X-Api-Key": api_key,
    "Accept": "application/json"
}

all_params = {**mandatory_params, **optional_params}

url_params = []
for param, value in all_params.items():
    url_params.append(f"{param}={value}")
url_params = '&'.join(url_params)

endpoint_with_params = f"{api_base_endpoint}?{url_params}"

# Pagination for next pages
all_data = []
next_url = endpoint_with_params
while next_url:
    conn.request("GET", next_url, headers=headers)
    response = conn.getresponse()
    data = json.loads(response.read().decode("utf-8"))
    all_data.extend(data.get("data", []))
    print(f"Fetched {len(data.get('data', []))} datapoints. Total: {len(all_data)}")
    next_url = data.get("next_url", "").replace("https://us.market-api.kaiko.io", "")
    if not next_url:
        break
conn.close()
print(f" datapoints fetched: {(all_data)}")
```

{% endtab %}
{% endtabs %}

### Response example

```json
{
    "query": {
        "start_time": "2026-05-13T00:00:00.000Z",
        "end_time": "2026-05-13T23:59:59.000Z",
        "page_size": 10,
        "asset": "cbtc",
        "blockchain": "canton",
        "sort": "desc",
        "request_time": "2026-05-13T07:57:55.131Z",
        "start_timestamp": 1778630400000,
        "end_timestamp": 1778716799000
    },
    "time": "2026-05-13T07:57:55.136Z",
    "timestamp": 1778659075136,
    "data": [
        {
            "timestamp": 1778655600,
            "asset": "cbtc",
            "blockchain": "canton",
            "total_supply": 29.0089104357,
            "circulating_supply": null,
            "market_cap": null
        }
        /** Results **/
    ],
    "result": "success",
    "access": {
        "access_range": {
            "start_timestamp": 1578006000000,
            "end_timestamp": 1893625200000
        },
        "data_range": {
            "start_timestamp": 1578006000000,
            "end_timestamp": 1893625200000
        }
    }
}
```


---

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.kaiko.com/rest-api/monitoring-solutions/kaiko-market-explorer/supply-and-market-cap/supply-per-blockchain.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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