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GA4 Insights Filter Values

GET
/api/v1/ga4-insights/filter-values
curl --request GET \
--url 'https://sitechecker.pro/api/v1/ga4-insights/filter-values?project_id=12345' \
--header 'Authorization: Bearer <token>'

Returns project-specific allowed values and capabilities for GA4 Insights, including available filters, supported metrics, and source availability metadata. Check dimension_support here before passing a dimension — an unsupported one is rejected rather than quietly ignored.

project_id
required
integer
Example
12345

Project ID.

Available GA4 filter values, supported dimensions and source availability

Media typeapplication/json
object
data

Project-specific GA4 values and capabilities supported in V1. Device, country and a full channel breakdown are intentionally absent because that GA4 data is not stored.

object
source_status

GA4 source availability status for the selected project.

object
ga4

GA4 connection/data availability status for the selected project.

string
Allowed values: connected not_connected
property

GA4 property metadata for the selected project.

object
id

GA4 property identifier or masked/display-safe metadata.

string
nullable
metrics

Supported V1 metric keys only.

Array<string>
dimensions

Supported breakdown dimensions. Use the dimension param; group_by is not supported.

Array<string>
dimension_support

Supported breakdown dimensions per endpoint with their constraints.

Array<object>
object
endpoint

Endpoint where the dimension is supported.

string
dimension

Supported dimension for that endpoint.

string
constraints

Endpoint-specific constraints to prevent heavy page × dimension matrices.

string
source_channels

Available channel scopes/values for this project. Includes all only if supported as the reserved all-sessions scope.

Array<string>
history_grouping

Daily / weekly / monthly.

Array<string>
Example
{
"data": {
"source_status": {
"ga4": "connected"
},
"property": {
"id": "123456789"
},
"metrics": [
"sessions",
"bounce_rate",
"average_session_duration",
"key_events",
"session_key_event_rate"
],
"dimensions": [
"source_medium"
],
"dimension_support": [
{
"endpoint": "page-history",
"dimension": "source_medium",
"constraints": "requires a single page_url; live GA4 API; max 15 series"
}
],
"source_channels": [
"organic_search",
"all"
],
"history_grouping": [
"daily",
"weekly",
"monthly"
]
}
}

Missing or invalid API key

Media typeapplication/json

Returned as INVALID_API_KEY when the key is missing or unknown, and as REVOKED_API_KEY when the key exists but was revoked — the latter needs a new key.

object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
"error": {
"code": "INVALID_API_KEY",
"message": "Invalid or missing API key."
}
}

No active API entitlement for the account, or the project belongs to another account

Media typeapplication/json

Returned as MISSING_PUBLIC_API_ACCESS when the account has no active API entitlement, and as ACCESS_DENIED when the requested project belongs to another account.

object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
"error": {
"code": "MISSING_PUBLIC_API_ACCESS",
"message": "API access is not available: the account has no active API entitlement."
}
}

Project not found

Media typeapplication/json

The exact missing resource is in error.code: PROJECT_NOT_FOUND, SEGMENT_NOT_FOUND, CRAWL_NOT_FOUND, KEYWORD_NOT_FOUND, OPPORTUNITY_NOT_FOUND, SNAPSHOT_UNAVAILABLE or NOT_FOUND.

object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
"error": {
"code": "PROJECT_NOT_FOUND",
"message": "Project not found."
}
}

Validation error

Media typeapplication/json

Rejected query parameters. error.code is VALIDATION_ERROR for parameter validation (including a query parameter the endpoint does not accept), or INVALID_DATE_RANGE / INVALID_FILTER / INVALID_EVENT_TYPE / UNSUPPORTED_FILTER / UNSUPPORTED_DIMENSION / UNSUPPORTED_METRIC / UNSUPPORTED_SCOPE / SEGMENT_FILTER_UNSUPPORTED for module-specific rules.

object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
"error": {
"code": "VALIDATION_ERROR",
"message": "project_id is required."
}
}

Rate limit exceeded — retry after the interval in the Retry-After header

Media typeapplication/json
object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
"error": {
"code": "RATE_LIMIT_EXCEEDED",
"message": "Rate limit exceeded. Try again later."
}
}

Internal server error

Media typeapplication/json
object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
"error": {
"code": "INTERNAL_ERROR",
"message": "Internal server error."
}
}