# GET /v1/convai/environment-variables (ElevenLabs API)
Base URL: https://api.elevenlabs.io
Auth: xi-api-key: <ELEVENLABS_API_KEY>
Last verified: 2026-09-03

> List Environment Variables

## Critical Gotchas
* Authentication uses the non-standard `xi-api-key` header, not `Authorization: Bearer`. Sending a Bearer token returns HTTP 401.
* Text-to-speech responses are raw binary audio, not JSON. Write the body to a file (`--output speech.mp3`) rather than parsing it.

## cURL
curl -X GET 'https://api.elevenlabs.io/v1/convai/environment-variables?cursor=example-cursor&page_size=100&label=example-label&environment=example-environment&type=string' \
  -H "xi-api-key: $ELEVENLABS_API_KEY"

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| cursor | query | string | No | Pagination cursor from previous response |
| page_size | query | integer | No | Number of items to return (1-100) |
| label | query | string | No | Filter by exact label match |
| environment | query | string | No | Filter to only return variables that have this environmen... |

## Response (200 OK)
{"environment_variables":[{}],"next_cursor":"string"}

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