GET/v1/population

Get population time series for a country

Return annual population time series for an EU/EEA country from Eurostat's demo_pjan dataset. **Filters:** - `country` — ISO alpha-2 code - `start_date` / `end_date` — inclusive ISO dates Source: Eurostat demo_pjan. Required scope: `eurostat:read`.

Authentication

Requires API key via X-API-Key header.

Parameters

Name	In	Type	Required	Description
country	query	string	required	ISO 3166-1 alpha-2 country code
start_date	query	any	optional	Start date (YYYY-MM-DD)
end_date	query	any	optional	End date (YYYY-MM-DD)

Example request

curl

curl -X GET \
  "https://eurostat.wageapi.com/api/v1/population?country=DE&start_date=%3Cstart_date%3E&end_date=%3Cend_date%3E" \
  -H "X-API-Key: YOUR_API_KEY"

Responses

200Successful Response

dataPopulationResponserequired

Population time series.

observationsarray<PopulationDataPoint>optional

array of PopulationDataPoint

country_codestringrequired

ISO 3166-1 alpha-2 country code

country_namestringrequired

Human-readable country name

periodstring (date)required

Reference period (annual)

populationanyoptional

Total population count

one of:

option 1:

integer

option 2:

null

unitstringoptional

Unit (NR=number of persons)

default "NR"

truncatedbooleanoptional

default false

metadataMetadataSchemarequired

sourcesarray<SourceSchema>optional

array of SourceSchema

namestringrequired

Data source name (e.g., 'Eurostat')

datasetstringrequired

Specific dataset identifier

urlanyoptional

URL to the source dataset

one of:

option 1:

string

option 2:

null

last_updatedanyoptional

When this data was last refreshed

one of:

option 1:

string (date-time)

option 2:

null

request_idstringrequired

Unique request identifier

rate_limitanyoptional

one of:

option 1:

remainingintegerrequired

Remaining requests today

daily_limitintegerrequired

Total daily request limit

reset_atstring (date-time)required

When the rate limit resets

option 2:

null

paginationanyoptional

one of:

option 1:

pageintegerrequired

page_sizeintegerrequired

totalintegerrequired

total_pagesintegerrequired

option 2:

null

data_vintageanyoptional

Data freshness (e.g., 'GDP data from Q4 2025')

one of:

option 1:

string

option 2:

null

methodology_notesanyoptional

Methodology notes (e.g., 'Chain-linked volumes, 2015=100')

one of:

option 1:

string

option 2:

null

401Missing or invalid API key.

errorErrorDetailrequired

Structured error payload returned by all Aethar APIs.

codestringrequired

Machine-readable error code (e.g. INVALID_API_KEY)

messagestringrequired

Human-readable error message

statusintegerrequired

HTTP status code

request_idstringrequired

Request identifier — include in support tickets

suggestionanyoptional

Actionable hint on how to resolve the error

one of:

option 1:

string

option 2:

null

doc_urlanyoptional

Link to full documentation for this error code

one of:

option 1:

string

option 2:

null

fieldanyoptional

Field that caused the error (if applicable)

one of:

option 1:

string

option 2:

null

errorsanyoptional

Per-field validation errors (only for 422 VALIDATION_ERROR responses)

one of:

option 1:

array of object

object

option 2:

null

403API key lacks the required scope for this endpoint.

errorErrorDetailrequired

Structured error payload returned by all Aethar APIs.

codestringrequired

Machine-readable error code (e.g. INVALID_API_KEY)

messagestringrequired

Human-readable error message

statusintegerrequired

HTTP status code

request_idstringrequired

Request identifier — include in support tickets

suggestionanyoptional

Actionable hint on how to resolve the error

one of:

option 1:

string

option 2:

null

doc_urlanyoptional

Link to full documentation for this error code

one of:

option 1:

string

option 2:

null

fieldanyoptional

Field that caused the error (if applicable)

one of:

option 1:

string

option 2:

null

errorsanyoptional

Per-field validation errors (only for 422 VALIDATION_ERROR responses)

one of:

option 1:

array of object

object

option 2:

null

422Request validation failed (bad query params, unresolvable country, etc.).

errorErrorDetailrequired

Structured error payload returned by all Aethar APIs.

codestringrequired

Machine-readable error code (e.g. INVALID_API_KEY)

messagestringrequired

Human-readable error message

statusintegerrequired

HTTP status code

request_idstringrequired

Request identifier — include in support tickets

suggestionanyoptional

Actionable hint on how to resolve the error

one of:

option 1:

string

option 2:

null

doc_urlanyoptional

Link to full documentation for this error code

one of:

option 1:

string

option 2:

null

fieldanyoptional

Field that caused the error (if applicable)

one of:

option 1:

string

option 2:

null

errorsanyoptional

Per-field validation errors (only for 422 VALIDATION_ERROR responses)

one of:

option 1:

array of object

object

option 2:

null

429Daily rate limit exceeded for this API key.

errorErrorDetailrequired

Structured error payload returned by all Aethar APIs.

codestringrequired

Machine-readable error code (e.g. INVALID_API_KEY)

messagestringrequired

Human-readable error message

statusintegerrequired

HTTP status code

request_idstringrequired

Request identifier — include in support tickets

suggestionanyoptional

Actionable hint on how to resolve the error

one of:

option 1:

string

option 2:

null

doc_urlanyoptional

Link to full documentation for this error code

one of:

option 1:

string

option 2:

null

fieldanyoptional

Field that caused the error (if applicable)

one of:

option 1:

string

option 2:

null

errorsanyoptional

Per-field validation errors (only for 422 VALIDATION_ERROR responses)

one of:

option 1:

array of object

object

option 2:

null

500Unexpected server error. Includes a request_id for support.

errorErrorDetailrequired

Structured error payload returned by all Aethar APIs.

codestringrequired

Machine-readable error code (e.g. INVALID_API_KEY)

messagestringrequired

Human-readable error message

statusintegerrequired

HTTP status code

request_idstringrequired

Request identifier — include in support tickets

suggestionanyoptional

Actionable hint on how to resolve the error

one of:

option 1:

string

option 2:

null

doc_urlanyoptional

Link to full documentation for this error code

one of:

option 1:

string

option 2:

null

fieldanyoptional

Field that caused the error (if applicable)

one of:

option 1:

string

option 2:

null

errorsanyoptional

Per-field validation errors (only for 422 VALIDATION_ERROR responses)

one of:

option 1:

array of object

object

option 2:

null

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