Announcement series variants

One endpoint, explicit macro series parameters.

FXMacroData uses a stable announcement path and query parameters to select the exact macro series variant. This keeps existing URLs working while exposing the basis fields customers need for cross-currency comparison: seasonal adjustment, real or nominal basis, returned frequency, source series ID, revision view, and pagination.

View parameters Response fields Data quality Open schema

Stable path: https://fxmacrodata.com/api/announcements/{currency}/{indicator}
Default rows: limit=20, most-recent-first, maximum 100
Compatibility: Existing v1 clients keep receiving the canonical series when selectors are omitted.

Endpoint model

Use parameters instead of endpoint sprawl.

The public route stays /api/v1/announcements/{currency}/{indicator}. Customers then add selectors only when they need a non-default variant. For example, GDP can be requested as real or nominal and unemployment can expose whether the selected source is seasonally adjusted. We do not create parallel slugs such as real_gdp, gdp_nominal_yoy, or unemployment_sa.

Canonical by default

/usd/gdp returns the current canonical GDP series. For GDP, that should be real where a real official series is available.

Selectors are explicit

basis=nominal, seasonality=sa, frequency=yoy, and revisions=first make the requested variant auditable.

Unsupported requests fail clearly

If a selector is not available for that endpoint, the API returns 400 unsupported_series_option with supported values.

Query parameters

Selectors available on announcement endpoints.

These parameters are available on the announcement endpoint family. Not every indicator supports every selector. Read supported_options in the response, or the data catalogue, before building a selector UI.

Parameter	Values	Default	Purpose
`seasonality`	`sa`, `nsa`	Canonical endpoint series	Selects seasonally adjusted or not seasonally adjusted data when both are available. The response metadata reports `seasonal_adjustment` as `SA`, `NSA`, `UNKNOWN`, or `NOT_APPLICABLE`.
`frequency`	`level`, `yoy`, `qoq`, `mom`	Canonical endpoint series	Selects the returned observation basis. Use `level` for the level/index/rate itself, or a change basis when the endpoint supports one.
`revisions`	`latest`, `first`, `final`, `all`	`latest`	Controls whether rows use the latest known value, the first published value, final revised value, or include all stored revision events in `revisions[]`.
`basis`	`real`, `nominal`	Canonical endpoint series	Selects inflation-adjusted real data or current-price nominal data where both are available. The response metadata reports `price_basis` as `REAL`, `NOMINAL`, or `UNKNOWN`.
`series_mode`	`raw`, `canonical`	`raw`	Controls whether configured continuity remaps are applied. Use `canonical` when you want FXMacroData's continuity rules across source methodology transitions.
`start_date`, `end_date`	`YYYY-MM-DD`	Endpoint default window	Restricts rows by observation period date. Rows are still sorted most-recent-first.
`limit`, `offset`, `page`	`limit` 1 to 100, `offset` 0+, `page` 1+	`limit=20`, `offset=0`	Paginates most-recent-first `data[]` after date filters are applied. `page` is one-based and derives `offset` as `(page - 1) * limit`.
`api_key`	Your FXMacroData key	Not required for public USD freemium windows	Recommended in public examples. Required for non-USD, paid-only, or full-history requests. Server-side clients may also use `X-API-Key`.

Pagination and sparse windows

Use the built-in pagination contract for long histories.

Announcement endpoints support broad historical windows. Date filters are applied first, rows are sorted most-recent-first, and the response page is controlled by limit plus either offset or page. To fetch the next page, reuse the same filters and pass offset=pagination.next_offset. Do not split broad ranges into custom shorter-window retries unless your application is intentionally sampling a specific sub-period.

Latest-row signal

page_includes_latest_available appears at the top level and inside pagination. It is true when the current page contains latest_available_date. If it is false, the latest observation is on another page or the current response is a historical page.

Sparse windows

Monthly, quarterly, and irregular series can be valid but have no observations inside a narrow recent date window. In that case the API returns a structured 404 with error_code=NO_DATA_IN_REQUESTED_WINDOW rather than asking the client to guess a shorter range.

{
  "detail": {
    "error_code": "NO_DATA_IN_REQUESTED_WINDOW",
    "message": "No observations available for NZD/core_inflation in requested range (2026-04-01 to 2026-06-22).",
    "currency": "NZD",
    "indicator": "core_inflation",
    "requested_start_date": "2026-04-01",
    "requested_end_date": "2026-06-22",
    "earliest_available_date": "1999-03-31",
    "latest_available_date": "2026-03-31",
    "recommended_start_date": "2026-03-31",
    "available_observation_count": 109
  }
}

Daily market-level exception: some daily level series, such as government bond yields, may return the latest eligible official observation before the requested window when it is recent enough. Those responses set requested_window_has_data=false and mark the row with outside_requested_window=true.

Examples

Common request shapes.

Canonical GDP

GET https://fxmacrodata.com/api/announcements/usd/gdp

Real GDP growth

GET https://fxmacrodata.com/api/announcements/usd/gdp?basis=real&frequency=yoy&limit=20

Nominal GDP level

GET https://fxmacrodata.com/api/announcements/usd/gdp?basis=nominal&frequency=level&api_key=YOUR_API_KEY

Seasonally adjusted unemployment

GET https://fxmacrodata.com/api/announcements/sek/unemployment?seasonality=sa&api_key=YOUR_API_KEY

First-published release values

GET https://fxmacrodata.com/api/announcements/usd/gdp?basis=real&revisions=first

Second page of history

GET https://fxmacrodata.com/api/announcements/usd/gdp?limit=20&offset=20

Response fields

Top-level fields explain the selected series.

Treat the top-level metadata as part of the data contract. It tells downstream systems exactly which source series, seasonal adjustment basis, price basis, and selector combination produced the rows in data[].

Field	Type	Meaning
`currency`, `indicator`, `name`, `value_name`	String	Identity fields for the requested currency and indicator.
`source`, `source_url`, `source_series_id`, `source_series_name`, `source_local_name`	String or null	Official source metadata. `source_series_id` is the audit key customers should store when comparing variants.
`seasonal_adjustment`	Enum	`SA`, `NSA`, `UNKNOWN`, or `NOT_APPLICABLE`. This field makes SA/NSA comparability explicit.
`price_basis`	Enum	`REAL`, `NOMINAL`, or `UNKNOWN`. This distinguishes inflation-adjusted series from current-price series.
`filters`	Object	Echoes the selector parameters that were applied to the response.
`selected_series_id`, `selected_series`	String, object	The resolved internal series variant. Use this for debugging and for stable downstream logs.
`supported_options`	Object	Lists valid selector values for this endpoint. Build client dropdowns from this object rather than assuming every indicator supports every value.
`pagination`	Object	Contains `limit`, `offset`, `returned_count`, `total_count`, `has_more`, `next_offset`, and `page_includes_latest_available`.
`earliest_available_date`, `latest_available_date`, `start_date`, `end_date`	Date string or null	Coverage and requested-window dates for the selected series.
`requested_start_date`, `requested_end_date`	Date string	The effective date window used for the request after endpoint defaults are resolved.
`requested_window_has_data`	Boolean	False when the response returns the latest eligible observation before the requested window rather than an observation inside the window.
`page_includes_latest_available`	Boolean	True when the current page contains `latest_available_date`. Also mirrored in `pagination.page_includes_latest_available`.
`data_quality`	Object	Standardized source, freshness, fallback/proxy, timestamp-completeness, and point-in-time safety diagnostics. Announcement endpoints may also add requested-window and pagination flags.
`provenance`	Object	Machine-readable provenance such as storage layer, timestamp field, value field, source URL, and source series ID.
`is_proxy`, `proxy_note`, `policy_role`, `policy_structure`, `comparison_compatible`, `policy_family`	Optional fields	Additional comparability fields used on policy-rate or proxy-backed series where relevant.

Data quality

Quality flags are standardized across source-backed endpoints.

Use data_quality before treating a payload as analysis-ready. For backtests, the fastest gate is point_in_time_safe=true and has_announcement_datetime=true. For reporting, also store source_type, source_name, latest_available_date, and the fallback/proxy flags.

Source flags

is_official source_type source_name is_proxy is_fallback is_derived

source_type is normalized to official, public, fallback, or derived.

Freshness flags

latest_available_date last_updated data_lag_days is_stale stale_after_days

Staleness thresholds are frequency-aware: daily, weekly, monthly, quarterly, and annual series use different default windows.

Backtest flags

has_announcement_datetime point_in_time_safe announcement_datetime_count missing_announcement_datetime_count quality_scope

Missing timestamps make the object explicitly fail the point-in-time safety check.

Observation rows

Each row remains point-in-time safe.

Required row fields

announcement_id date val

date is the economic period, while announcement_datetime is when the value became known to the market.

Release timing

announcement_datetime announcement_datetime_local

Backtests should gate on the announcement timestamp, not the period date.

Change fields

val_mom pct_change pct_change_12m pct_change_qoq pct_change_yoy

These fields are present where meaningful for the selected series. Clients should tolerate missing or null change fields.

Revision fields

revisions[] epoch val

Use revisions=all when the application needs the stored revision trail rather than the latest row view.

Sample payload

USD GDP real-basis response shape.

Values below are illustrative of the contract. Always read supported_options from the live response before requesting a non-default variant.

{
  "currency": "USD",
  "indicator": "gdp",
  "name": "GDP",
  "source": "BEA",
  "source_series_id": "BEA:real_gdp",
  "source_series_name": "Real Gross Domestic Product",
  "seasonal_adjustment": "SA",
  "price_basis": "REAL",
  "requested_start_date": "2020-01-01",
  "requested_end_date": "2026-06-22",
  "requested_window_has_data": true,
  "page_includes_latest_available": true,
  "earliest_available_date": "2020-03-31",
  "latest_available_date": "2026-03-31",
  "filters": {
    "basis": "real",
    "frequency": "level",
    "revisions": "latest"
  },
  "selected_series_id": "usd_gdp_real_sa_level",
  "selected_series": {
    "basis": "real",
    "frequency": "level",
    "seasonality": "sa",
    "source_series_id": "BEA:real_gdp"
  },
  "supported_options": {
    "basis": ["real", "nominal"],
    "frequency": ["level", "qoq", "yoy"],
    "seasonality": ["sa"],
    "revisions": ["latest", "first", "final", "all"]
  },
  "pagination": {
    "limit": 20,
    "offset": 0,
    "returned_count": 20,
    "total_count": 63,
    "has_more": true,
    "next_offset": 20,
    "page_includes_latest_available": true
  },
  "data_quality": {
    "is_official": true,
    "is_proxy": false,
    "is_fallback": false,
    "is_stale": false,
    "has_announcement_datetime": true,
    "point_in_time_safe": true,
    "latest_available_date": "2026-03-31",
    "last_updated": null,
    "data_lag_days": 83,
    "source_name": "BEA",
    "source_type": "official",
    "is_derived": false,
    "row_count": 20,
    "announcement_datetime_count": 20,
    "missing_announcement_datetime_count": 0,
    "quality_scope": "full_result",
    "stale_after_days": 125,
    "requested_window_has_data": true,
    "page_includes_latest_available": true
  },
  "data": [
    {
      "announcement_id": "usd_gdp_2026-03-31",
      "date": "2026-03-31",
      "val": 6038.164,
      "pct_change_qoq": 0.4,
      "pct_change_yoy": 2.57,
      "announcement_datetime": 1777552200,
      "announcement_datetime_local": "2026-04-30T08:30:00-04:00",
      "revisions": [{ "epoch": 1777552200, "val": 6038.164 }]
    }
  ]
}

Client workflow

How customers should discover variants.

Recommended flow

Call the canonical endpoint first, inspect supported_options, then request only the variant needed by the application. Store source_series_id, seasonal_adjustment, and price_basis with downstream observations.

Pagination flow

Read pagination.has_more and request the next page with offset=pagination.next_offset. Use page_includes_latest_available to know whether the latest observation is on the current page.

Design rule: there is no public "return all series variants" selector. Customers choose one series variant per request, which keeps responses predictable and prevents large repeated pulls of slow-moving macro history.

Errors and compatibility

What changes for existing users.

Additive v1 change

Existing calls such as /api/v1/announcements/usd/inflation continue to work. New metadata fields are additive, so clients should ignore unknown fields they do not use.

Selector errors

400 unsupported_series_option means the selector value is valid globally but not available for that specific currency and indicator. Read supported_options and retry.

Auth and limits

401 or 403 indicates missing or insufficient API access. 429 indicates rate limiting. Use ?api_key=YOUR_API_KEY in public examples.

Missing data

A plain availability 404 means the requested currency, indicator, or selected series is not published. Use the coverage pages or /api/v1/data_catalogue/{currency} to check availability.

No rows in window

404 with error_code=NO_DATA_IN_REQUESTED_WINDOW means the series exists but the requested date range has no observations. Use latest_available_date or recommended_start_date, or broaden the date window.

Client parsing: do not assume every row has every derived field. GDP may expose pct_change_qoq and pct_change_yoy; monthly inflation may expose val_mom; some level series have no meaningful change field.

Summarize article with AI:

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AI Answer-Ready

Key Facts

Page: Announcement Endpoint
Section: Documentation
Canonical URL: https://fxmacrodata.com/documentation/announcement-endpoint
Source: FXMacroData editorial and official publisher references
Last Updated: See page metadata

Provenance And Trust

Cite the canonical URL and source field above. Where available, this page maps to official publisher releases and timestamped updates.

Quick Q&A

What is this page about? This page explains Announcement Endpoint with directly usable context for trading, research, and API workflows.

What source should be cited? Use the canonical URL and the listed source field; cite official publisher references when available.

How fresh is this content? The last updated value above reflects the page metadata or latest available data timestamp.

Can this be used in AI assistants? Yes. This section is intentionally structured for retrieval and citation in chat assistants.

Prompt Packs

Use these in ChatGPT, Claude, Gemini, Mistral, Perplexity, or Grok for consistent source-aware outputs.