> For the complete documentation index, see [llms.txt](https://gitbook-docs.coinmetrics.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook-docs.coinmetrics.io/python-api-client/reference/coinmetricsclient.md).

# CoinMetricsClient

`CoinMetricsClient` is the main entry point for the Python client. Instantiate it once with your API key and call the method that matches the Coin Metrics REST endpoint you want to hit; every method returns either a `DataCollection` (REST endpoints) or a `CmStream` (WebSocket endpoints).

```python
class coinmetrics.api_client.CoinMetricsClient(
    api_key='',
    verify_ssl_certs=True,
    proxy_url=None,
    session=None,
    debug_mode=False,
    verbose=False,
    host=None,
    port=None,
    schema='https',
    ignore_unsupported_errors=False,
    ignore_forbidden_errors=False,
    max_retries=5,
)
```

Bases: [`object`](https://docs.python.org/3/library/functions.html#object)

The CoinMetricsClient class is a Python wrapper for calling the Coin Metrics API.

* **Parameters:**
  * **api\_key** ([*str*](https://docs.python.org/3/library/stdtypes.html#str))
  * **verify\_ssl\_certs** ([*bool*](https://docs.python.org/3/library/functions.html#bool) *|* [*str*](https://docs.python.org/3/library/stdtypes.html#str))
  * **proxy\_url** ([*str*](https://docs.python.org/3/library/stdtypes.html#str) *|* *None*)
  * **session** (*Session* *|* *None*)
  * **debug\_mode** ([*bool*](https://docs.python.org/3/library/functions.html#bool))
  * **verbose** ([*bool*](https://docs.python.org/3/library/functions.html#bool))
  * **host** ([*str*](https://docs.python.org/3/library/stdtypes.html#str) *|* *None*)
  * **port** ([*int*](https://docs.python.org/3/library/functions.html#int) *|* *None*)
  * **schema** ([*str*](https://docs.python.org/3/library/stdtypes.html#str))
  * **ignore\_unsupported\_errors** ([*bool*](https://docs.python.org/3/library/functions.html#bool))
  * **ignore\_forbidden\_errors** ([*bool*](https://docs.python.org/3/library/functions.html#bool))
  * **max\_retries** ([*int*](https://docs.python.org/3/library/functions.html#int) *|* *None*)

## Endpoints

Methods are grouped by endpoint root. For example, every `catalog-v2/*` request lives under **Catalog v2** and every `timeseries/*` request lives under **Time Series**.


---

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