> For the complete documentation index, see [llms.txt](https://docs-v4.nftx.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-v4.nftx.io/api-reference/system.md).

# System

Operational endpoints for checking service health and reading protocol-level configuration and statistics (TVL, fees, volume). Health, readiness, and metrics are not chain-scoped; the protocol endpoints take a `{chain}`.

## Service health

{% openapi src="<https://nftx-v4-api-production.up.railway.app/openapi.json>" path="/" method="get" %}
<https://nftx-v4-api-production.up.railway.app/openapi.json>
{% endopenapi %}

{% openapi src="<https://nftx-v4-api-production.up.railway.app/openapi.json>" path="/health" method="get" %}
<https://nftx-v4-api-production.up.railway.app/openapi.json>
{% endopenapi %}

{% openapi src="<https://nftx-v4-api-production.up.railway.app/openapi.json>" path="/ready" method="get" %}
<https://nftx-v4-api-production.up.railway.app/openapi.json>
{% endopenapi %}

{% openapi src="<https://nftx-v4-api-production.up.railway.app/openapi.json>" path="/metrics" method="get" %}
<https://nftx-v4-api-production.up.railway.app/openapi.json>
{% endopenapi %}

## Protocol configuration and stats

{% openapi src="<https://nftx-v4-api-production.up.railway.app/openapi.json>" path="/v1/{chain}/protocol/config" method="get" %}
<https://nftx-v4-api-production.up.railway.app/openapi.json>
{% endopenapi %}

{% openapi src="<https://nftx-v4-api-production.up.railway.app/openapi.json>" path="/v1/{chain}/protocol/stats" method="get" %}
<https://nftx-v4-api-production.up.railway.app/openapi.json>
{% endopenapi %}