---
title: "Monetary aggregates (M0 and Argentine surrogates)"
method: GET
path: "/api/v1/central-banks/bcra/aggregates"
tags: ["Central Banks & Monetary"]
---

# Monetary aggregates (M0 and Argentine surrogates)

`GET /api/v1/central-banks/bcra/aggregates`

Curated Argentine money-stock series. BCRA does not publish a clean M0/M1/M2/M3 hierarchy the same way most central banks do. This endpoint surfaces the Principales Variables components so clients can assemble their preferred aggregate: base monetaria (15 = M0), circulacion (16), billetes en poder del publico (17), cuentas corrientes privadas (22), cajas de ahorro privadas (23), depositos en efectivo (21), and depositos a plazo (24). All values in ARS millions.

## Query parameters

- `start_date` string, nullable — Inclusive start date (YYYY-MM-DD).
- `end_date` string, nullable — Inclusive end date (YYYY-MM-DD).
- `limit` integer, nullable — Observations per series.

## Response `200`

Multi-series payload covering the main Argentine money-stock components.

- EnvelopeBcraAggregatesPayload
  - `data` BcraAggregatesPayload, required — Curated monetary aggregates (M0 + Argentine surrogates). Argentina does not publish a strict M0/M1/M2/M3 hierarchy. This payload surfaces the canonical Principales Variables money-stock series so the consumer can assemble their preferred aggregate: - m0 (15) base monetaria, m1_circulacion (16), m1_billetes_publico (17), m1_cc_privada (22), m2_cajas_ahorro (23), m3_total_efectivo (21), m4_plazo_fijo (24). All values in ARS millions.
    - `m0` BcraRateSeries, required — One reference-rate series inside the /policy-rate convenience card.
      - `id_variable` integer, required — BCRA idVariable backing this series.
      - `observations` BcraObservation[], required — Observations for the selected date window (newest first).
        - `fecha` string, nullable — Observation date in strict ISO 8601 (YYYY-MM-DD), Argentine local time (UTC-3, no DST).
        - `valor` union — Observation value. Numeric when parseable; original string for legacy rows.
          - number
          - string
      - `count` integer, required — Observations returned.
    - `m1_circulacion` BcraRateSeries, required — One reference-rate series inside the /policy-rate convenience card.
      - `id_variable` integer, required — BCRA idVariable backing this series.
      - `observations` BcraObservation[], required — Observations for the selected date window (newest first).
        - `fecha` string, nullable — Observation date in strict ISO 8601 (YYYY-MM-DD), Argentine local time (UTC-3, no DST).
        - `valor` union — Observation value. Numeric when parseable; original string for legacy rows.
          - number
          - string
      - `count` integer, required — Observations returned.
    - `m1_billetes_publico` BcraRateSeries, required — One reference-rate series inside the /policy-rate convenience card.
      - `id_variable` integer, required — BCRA idVariable backing this series.
      - `observations` BcraObservation[], required — Observations for the selected date window (newest first).
        - `fecha` string, nullable — Observation date in strict ISO 8601 (YYYY-MM-DD), Argentine local time (UTC-3, no DST).
        - `valor` union — Observation value. Numeric when parseable; original string for legacy rows.
          - number
          - string
      - `count` integer, required — Observations returned.
    - `m1_cc_privada` BcraRateSeries, required — One reference-rate series inside the /policy-rate convenience card.
      - `id_variable` integer, required — BCRA idVariable backing this series.
      - `observations` BcraObservation[], required — Observations for the selected date window (newest first).
        - `fecha` string, nullable — Observation date in strict ISO 8601 (YYYY-MM-DD), Argentine local time (UTC-3, no DST).
        - `valor` union — Observation value. Numeric when parseable; original string for legacy rows.
          - number
          - string
      - `count` integer, required — Observations returned.
    - `m2_cajas_ahorro` BcraRateSeries, required — One reference-rate series inside the /policy-rate convenience card.
      - `id_variable` integer, required — BCRA idVariable backing this series.
      - `observations` BcraObservation[], required — Observations for the selected date window (newest first).
        - `fecha` string, nullable — Observation date in strict ISO 8601 (YYYY-MM-DD), Argentine local time (UTC-3, no DST).
        - `valor` union — Observation value. Numeric when parseable; original string for legacy rows.
          - number
          - string
      - `count` integer, required — Observations returned.
    - `m3_total_efectivo` BcraRateSeries, required — One reference-rate series inside the /policy-rate convenience card.
      - `id_variable` integer, required — BCRA idVariable backing this series.
      - `observations` BcraObservation[], required — Observations for the selected date window (newest first).
        - `fecha` string, nullable — Observation date in strict ISO 8601 (YYYY-MM-DD), Argentine local time (UTC-3, no DST).
        - `valor` union — Observation value. Numeric when parseable; original string for legacy rows.
          - number
          - string
      - `count` integer, required — Observations returned.
    - `m4_plazo_fijo` BcraRateSeries, required — One reference-rate series inside the /policy-rate convenience card.
      - `id_variable` integer, required — BCRA idVariable backing this series.
      - `observations` BcraObservation[], required — Observations for the selected date window (newest first).
        - `fecha` string, nullable — Observation date in strict ISO 8601 (YYYY-MM-DD), Argentine local time (UTC-3, no DST).
        - `valor` union — Observation value. Numeric when parseable; original string for legacy rows.
          - number
          - string
      - `count` integer, required — Observations returned.
  - `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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