---
title: "Finnish Harmonised Index of Consumer Prices (ECB basis)"
method: GET
path: "/api/v1/stat-finland/hicp"
tags: ["Statistical Agencies"]
---

# Finnish Harmonised Index of Consumer Prices (ECB basis)

`GET /api/v1/stat-finland/hicp`

Harmonised Index of Consumer Prices for Finland (`khi/statfin_khi_pxt_15b7.px`, base year 2025=100). The HICP is methodologically comparable across the Euro area and feeds directly into ECB Eurozone inflation aggregates.

## Query parameters

- `last_n` integer — Number of most-recent months to return.
- `indicator` string — Tiedot code. `ip_ykhi` is HICP point figure; `ip_ykhi_kive` is HICP-CT (constant taxes).

## Response `200`

Monthly HICP observations filtered to the overall commodity aggregate.

- EnvelopeStatFinHicpPayload
  - `data` StatFinHicpPayload, required
    - `table_id` string, required — PxWeb table identifier.
    - `indicator` string, required — Tiedot code used for the response.
    - `base` string, required — Index base year label.
    - `observations` StatFinCommodityObservation[], required — HICP point figures by month.
      - `period` string, required — PxWeb period code as returned upstream: `YYYYMnn` for months, `YYYYQn` for quarters, `YYYY` for years.
      - `time` string, nullable — ISO-8601 UTC timestamp for the first day of the period (months -> first day of month, quarters -> first day of quarter, years -> Jan 1).
      - `value` number, nullable — Parsed numeric value. `null` when upstream value is `.` or `..` (suppressed or missing).
      - `value_raw` string, nullable — Raw value string as delivered by PxWeb; useful for debugging.
      - `Hyödyke` string, nullable — Finnish COICOP commodity code. `SSS` is the overall index.
    - `count` integer, required — Number of observations returned.
    - `metadata` StatFinMetadata — Raw metadata block copied from PxWeb.
      - `updated` string, nullable — Upstream last-updated timestamp, normalised to ISO-8601 UTC (PxWeb delivers dot-separated time like `2026-04-14T05.00.00Z`; Sugra replaces the dots with colons).
      - `label` string, nullable — Human-readable table label.
      - `source` string, nullable — Source attribution string as delivered by Statistics Finland.
  - `meta` SugraMeta, required — Metadata attached to every /api/v1/* response envelope.
    - `endpoint` string, required — Requested endpoint path.
    - `data_time` string, required — ISO 8601 UTC timestamp of the source data, not of the request.
    - `response_time` string, required — ISO 8601 UTC timestamp when this response was produced.
    - `provider` string, required — API name and version.
    - `source` string, nullable — Identifier of the primary upstream source used for this response.
    - `attribution` string, nullable — Human-readable attribution mandated by an upstream source (e.g. a securities regulator or self-regulatory organization). Present only on responses whose source requires the owner and source to be clearly identified. Do not remove or alter it when using the response.
    - `fallback_used` boolean, nullable — True when the primary source failed and a fallback produced the data.
    - `fallback_chain` string[], nullable — Ordered list of sources attempted, in the order they were tried.
    - `cached` boolean, nullable — True when this response was served from the internal cache.
    - `stale` boolean, nullable — True when the cached response was returned after the upstream rate-limited or errored. Clients can use this to detect degraded data.

## Other responses

- `401` — Missing or invalid `x-api-key` header. JSON body with a stable `code` distinguishing `missing_api_key` (no header sent) from `invalid_api_key` (header sent, key not accepted); any other 401 source carries the generic `unauthorized` with its detail as `reason`. Plus `hint`. `plan` is always null on 401 - an unauthenticated request has no plan; quota exhaustion is 429, not 401.
- `422` — Validation Error
- `429` — Daily rate limit exceeded. Check `X-RateLimit-Reset` for the next window.
- `503` — Upstream source is temporarily unavailable. Retry after a short delay.

---

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