List functions

curl --request GET \
  --url https://realtime-api.voiceflow.com/v1/stable/function \
  --header 'Authorization: Bearer <token>'

const response = await fetch('https://realtime-api.voiceflow.com/v1/stable/function?projectID=<projectID>&environmentAlias=<environmentAlias>', {
  method: 'GET',
  headers: {
    Authorization: 'Bearer <token>',
  },
});
const data = await response.json();

import requests

response = requests.get(
    'https://realtime-api.voiceflow.com/v1/stable/function?projectID=<projectID>&environmentAlias=<environmentAlias>',
    headers={'Authorization': 'Bearer <token>'},
)
data = response.json()

{
  "functions": [
    {
      "id": "<string>",
      "name": "<string>",
      "code": "<string>",
      "image": "<string>",
      "settings": "<FunctionSettings>",
      "createdAt": "2026-09-10T00:00:00.000Z",
      "updatedAt": "2026-09-10T00:00:00.000Z",
      "pathOrder": [
        "<string>"
      ],
      "description": "<string>"
    }
  ]
}

List functions

Returns every function in the environment. A function is custom JavaScript that runs in Voiceflow’s sandbox and returns through a named path. The call takes no paging parameters, so one request yields the whole set.

GET

/v1/stable/function

List functions

curl --request GET \
  --url https://realtime-api.voiceflow.com/v1/stable/function \
  --header 'Authorization: Bearer <token>'

const response = await fetch('https://realtime-api.voiceflow.com/v1/stable/function?projectID=<projectID>&environmentAlias=<environmentAlias>', {
  method: 'GET',
  headers: {
    Authorization: 'Bearer <token>',
  },
});
const data = await response.json();

import requests

response = requests.get(
    'https://realtime-api.voiceflow.com/v1/stable/function?projectID=<projectID>&environmentAlias=<environmentAlias>',
    headers={'Authorization': 'Bearer <token>'},
)
data = response.json()

{
  "functions": [
    {
      "id": "<string>",
      "name": "<string>",
      "code": "<string>",
      "image": "<string>",
      "settings": "<FunctionSettings>",
      "createdAt": "2026-09-10T00:00:00.000Z",
      "updatedAt": "2026-09-10T00:00:00.000Z",
      "pathOrder": [
        "<string>"
      ],
      "description": "<string>"
    }
  ]
}

Authorizations

Authorization

string

header

required

Voiceflow bearer token

Query Parameters

projectID

string

required

The ID of the project to operate on.

environmentAlias

string

required

The alias of the environment to operate on (e.g. main).

Response

200 - application/json

Returns every function saved in the project's environment, each with its name, description, settings, and full JavaScript source code.

functions

object[]

required

Show child attributes

string

required

name

string

required

code

string

required

The JavaScript source code executed when the function runs.

image

string

required

The URL of the image displayed for the function in the Voiceflow UI.

settings

object

required

Show child attributes

timeoutMs

integer

createdAt

string

required

updatedAt

string

required

pathOrder

string[]

required

An ordered list of path IDs controlling the display order of the function's exit paths.

description

string

required

A human-readable description of what the function does.

Getting started

Running agents

Build

Manage

Publishing

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Insights

QA

Analytics

Webhooks

List functions

Authorizations

Query Parameters

Response

Getting started

Running agents

Build

Manage

Publishing

Observe

Insights

QA

Analytics

Webhooks