> ## Documentation Index
> Fetch the complete documentation index at: https://code.dcycle.io/llms.txt
> Use this file to discover all available pages before exploring further.

# List Refrigerant Gases

> The refrigerant gases Dcycle calculates fugitive emissions for: the ids for refrigerant_fuel_id on refrigerant invoices

[← Invoices API](/api-reference/invoices/overview)

The full catalog of refrigerant gas recharged in a cooling system that Dcycle has emission factors for, sorted by name. Use an `id` as `refrigerant_fuel_id` in
[`POST /v2/invoices/refrigerants`](/api-reference/invoices/refrigerants-create-v2). The list is the same for every organization and
changes rarely, so you can cache it.

<RequestExample>
  ```bash cURL theme={"theme":{"light":"github-light","dark":"github-dark"}}
  curl "https://api.dcycle.io/v1/recharge/gases" \
    -H "x-api-key: ${DCYCLE_API_KEY}" \
    -H "x-organization-id: ${DCYCLE_ORG_ID}"
  ```
</RequestExample>

<ResponseExample>
  ```json 200 theme={"theme":{"light":"github-light","dark":"github-dark"}}
  [
    { "id": "8fd1ff5d-3f57-47cf-ae83-a841fd084b95", "name": "hfc_32" },
    { "id": "475c39ac-1435-4b10-9559-70966ea0800c", "name": "hfc_134a" }
  ]
  ```
</ResponseExample>

## Request

### Headers

<ParamField header="x-api-key" type="string" required>
  Your API key (see [Authentication](/api-reference/introduction#authentication)).
</ParamField>

<ParamField header="x-organization-id" type="string" required>
  Your organization UUID.
</ParamField>

## Response

An array of objects, sorted by `name`:

<ResponseField name="id" type="uuid">The id to send as `refrigerant_fuel_id`.</ResponseField>
<ResponseField name="name" type="string">The name, in English snake\_case (e.g. `hfc_134a`).</ResponseField>

## Related Endpoints

<CardGroup cols={2}>
  <Card title="Create Refrigerant Invoices (v2)" icon="snowflake" href="/api-reference/invoices/refrigerants-create-v2">
    Uses `refrigerant_fuel_id`
  </Card>

  <Card title="Invoices API" icon="receipt" href="/api-reference/invoices/overview">
    Which route for which consumption
  </Card>
</CardGroup>


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