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Discover available filter attributes

GET
/v1/schema/fields
curl --request GET \
--url https://dev-api.infiniteaudience.ai/v1/schema/fields \
--header 'Authorization: Bearer <token>'

Returns the Attribute Catalog — every attribute you can use in the filters array when calling the count, lookup, crosstab, and overlap endpoints. For each attribute you’ll get its data type, a plain-English description, a suggested UI widget, and (for categorical attributes) the allowed values. Use this to build dynamic filter UIs or to validate attribute names before submitting a query. Only filterable attributes are returned — there’s no parameter to widen this set. The response is cached and refreshed nightly. Requires ‘discovery’ scope.

Attribute Catalog.

Media typeapplication/json
object
fields
required
Array<object>
object
field_name
required
string
table_name
required
string
bq_type
required
string
description
required

Plain-English description of the attribute.

string
filterable
required
boolean
operators
required
Array<string>
ui_hint
required
string | null
ui_label
required
string
enum_values
required
Array<string> | null
value_labels
required
One of:
object
key
additional properties
string
is_pii
required
boolean
groupable
required
boolean
anchor
required
boolean
data_level
required
string | null
category_display_name
required
string | null
category
string
cached_at
required
string format: date-time
Example
{
"fields": [
{
"field_name": "gender",
"table_name": "demographics.consumers_v2",
"bq_type": "STRING",
"description": "Age bracket of the consumer (e.g. 25-34)",
"operators": [
"=",
"!=",
"IN",
"NOT IN"
],
"ui_hint": "multi_select",
"ui_label": "Gender",
"enum_values": [
"18-24",
"25-34",
"35-44",
"45-54",
"55+"
],
"category_display_name": "Demographics & Household"
}
]
}

Missing or invalid Bearer token. Obtain one via POST /v1/auth/token. When a token was supplied but rejected, code distinguishes TOKEN_EXPIRED (the token’s lifetime has passed — request a new one via POST /v1/auth/token and retry) from TOKEN_INVALID (malformed or revoked — re-authenticate).

Media typeapplication/json
object
error
required

Stable machine-readable error code (e.g. INVALID_STATUS_TRANSITION, BILLING_INSUFFICIENT_BALANCE). Always present.

string
message

Human-readable explanation of the error.

string
code

Alternate machine-readable code — present on some endpoints as an alias for error for backward compatibility.

string
request_id

Opaque support/debug identifier when available.

string
key
additional properties
any
Examples
{
"error": "Unauthorized: Missing or invalid Authorization header"
}

Token is valid but lacks the required scope for this endpoint. Check the endpoint description for the required scope (discovery, purchase, or account).

Media typeapplication/json
object
error
required

Stable machine-readable error code (e.g. INVALID_STATUS_TRANSITION, BILLING_INSUFFICIENT_BALANCE). Always present.

string
message

Human-readable explanation of the error.

string
code

Alternate machine-readable code — present on some endpoints as an alias for error for backward compatibility.

string
request_id

Opaque support/debug identifier when available.

string
key
additional properties
any
Examples
Examplemissing_scope
{
"error": "SCOPE_REQUIRED",
"message": "This endpoint requires the purchase scope."
}