Guides

Trends

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List trends
Filters
Sorting
The fields of a trend
Get one trend
List a trend's articles
Where a trend is covered
Recipes

A trend is a story: the articles that many sources publish about the same event, grouped by EarlyWave as they arrive. Trends are built from every source EarlyWave reads, so every key sees the same trends, whatever its account follows.

Four operations cover them:

REST	MCP tool	Returns
`GET /trends`	`list_trends`	Trends, filtered and sorted.
`GET /trends/{trend_id}`	`get_trend`	One trend with its summary, entities, keywords and 10 latest articles.
`GET /trends/{trend_id}/articles`	`get_trend_articles`	Every article of a trend, with its source.
`GET /trends/{trend_id}/coverage`	`get_trend_coverage`	Where a trend is covered: countries, languages, hour by hour.

List trends

bash

curl "https://api.earlywave.ai/api/v1/trends?country=FR&since_hours=24&limit=5" \
  -H "Authorization: Bearer $EARLYWAVE_API_KEY"

The list holds active stories only. As on the Trends page, stories EarlyWave judged low quality and recurring formats (horoscopes, exchange rates, daily deals, lottery results) are left out.

Filters

All filters are optional and combine with AND. Lists of values are comma-separated and match any of them.

Parameter	Example	Keeps the trends…
`country`	`FR`	about this country (`subject_countries` contains it).
`publisher_country`	`DE`	covered by at least 2 sources from this country (`publisher_countries`).
`category`	`politics,economy`	in one of these categories.
`stage`	`breakout`	at one of these stages: `emerging`, `accelerating`, `breakout`.
`reach`	`international,global`	with one of these reaches: `local`, `national`, `international`, `global`.
`since_hours`	`24`	that started within this many hours (1–720).
`query`	`strike`	whose title contains this text (case-insensitive).

Categories: ai, tech, business, economy, crypto, cyber, geopolitics, politics, energy, climate, health, science, space, society, sports, cinema, people, music, world.

Countries are ISO 3166-1 alpha-2 codes. A three-letter code or an unknown category answers 400 with the allowed values in the message.

Sorting

`sort`	Order
`signal` (default)	Strongest signal first (`signal_score`).
`recent`	Latest activity first (`last_activity_at`).
`sources`	Most distinct sources first (`source_count`).

The fields of a trend

json

{
  "id": 48213,
  "title": "Rail strike disrupts travel across France",
  "url": "https://www.earlywave.ai/trends/trend/48213",
  "status": "active",
  "stage": "accelerating",
  "category": "society",
  "reach": "national",
  "subject_countries": ["FR"],
  "publisher_countries": ["FR", "BE", "CH"],
  "item_count": 142,
  "source_count": 61,
  "signal_score": 74.2,
  "velocity_1h": 9,
  "velocity_24h": 118,
  "started_at": "2026-10-18T05:42:00.000Z",
  "earliest_item_at": "2026-10-18T05:42:00.000Z",
  "first_seen_at": "2026-10-18T06:10:12.000Z",
  "last_activity_at": "2026-10-19T08:55:31.000Z"
}

Field	Meaning
`url`	The trend's page on earlywave.ai, to link people to.
`status`	`active` in lists. `get_trend` can also return older stories.
`stage`	The story's momentum: `emerging`, `accelerating`, `breakout`.
`reach`	How far the coverage spreads, from the publishers' countries and languages: `local`, `national`, `international`, `global`. `null` until computed.
`subject_countries`	Countries the story is about. Empty for a story about no country in particular.
`publisher_countries`	Countries with at least 2 sources covering the story, most sources first.
`item_count` / `source_count`	Articles, and distinct sources (sites) that published them.
`signal_score`	EarlyWave's composite score, 0–100.
`velocity_1h` / `velocity_24h`	Articles in the last hour / 24 hours.
`started_at`	When the story started: its earliest trusted article. Use this one.
`first_seen_at`	When EarlyWave grouped the articles into a story, usually a little later.
`last_activity_at`	The latest article.

subject_countries and publisher_countries answer different questions. A story about France covered by German media has subject_countries: ["FR"] and "DE" in publisher_countries: country=FR and publisher_country=DE both find it.

Get one trend

bash

curl "https://api.earlywave.ai/api/v1/trends/48213" \
  -H "Authorization: Bearer $EARLYWAVE_API_KEY"

The answer has every field of the list, plus:

json

{
  "summary": "Rail unions began a 48-hour strike over pay. Two trains in three were cancelled on Monday morning.",
  "regions": ["FR", "BE"],
  "publisher_languages": ["fr", "en"],
  "top_entities": [{ "name": "SNCF", "type": "ORGANIZATION" }],
  "top_keywords": [{ "term": "rail strike", "aliases": ["grève"], "kind": "concept" }],
  "sources": [
    {
      "id": 9917305,
      "title": "Rail strike: two trains in three cancelled on Monday",
      "url": "https://news.example.fr/rail-strike-monday",
      "published": "2026-10-19T08:41:00.000Z"
    }
  ]
}

summary is written by EarlyWave from the articles; null until then.
publisher_languages lists the languages with at least 2 sources. regions is an older list of country codes; prefer subject_countries and publisher_countries.
top_entities holds up to 5 { "name", "type" } (PERSON, ORGANIZATION, LOCATION, EVENT, PRODUCT); top_keywords holds { "term", "aliases", "kind" }. Their shape is typed loosely in the schema: read them defensively.
sources holds the 10 most recently added articles. For all of them, use the next operation.

An unknown ID answers 404 with code trend_not_found.

List a trend's articles

bash

curl "https://api.earlywave.ai/api/v1/trends/48213/articles?sort=oldest&limit=1" \
  -H "Authorization: Bearer $EARLYWAVE_API_KEY"

json

{
  "trend_id": 48213,
  "articles": [
    {
      "id": 9911842,
      "title": "Rail unions call a 48-hour strike from Saturday",
      "url": "https://news.example.fr/rail-unions-strike",
      "preview": "The four main rail unions called a strike over the pay offer made on Thursday…",
      "image_url": null,
      "author": null,
      "published": "2026-10-18T05:42:00.000Z",
      "feed_id": 1207,
      "language": "en",
      "source": {
        "feed_id": 1207,
        "title": "Example News",
        "website_url": "https://news.example.fr",
        "country": "FR"
      }
    }
  ],
  "total": 142,
  "limit": 1,
  "offset": 0,
  "has_more": true
}

sort=latest (default) gives the newest first, sort=oldest the first coverage first: with limit=1, who broke the story. source.country is the publisher's country.

Where a trend is covered

bash

curl "https://api.earlywave.ai/api/v1/trends/48213/coverage" \
  -H "Authorization: Bearer $EARLYWAVE_API_KEY"

json

{
  "trend_id": 48213,
  "total_articles": 142,
  "total_sources": 61,
  "first_article_at": "2026-10-18T05:42:00.000Z",
  "peak_at": "2026-10-19T07:00:00.000Z",
  "countries": [
    { "country": "FR", "sources": 52, "articles": 126, "first_article_at": "2026-10-18T05:42:00.000Z", "peak_hour": "2026-10-19T07:00:00.000Z" },
    { "country": "BE", "sources": 5, "articles": 9, "first_article_at": "2026-10-18T09:15:00.000Z", "peak_hour": "2026-10-19T08:00:00.000Z" },
    { "country": "CH", "sources": 4, "articles": 7, "first_article_at": "2026-10-18T11:02:00.000Z", "peak_hour": "2026-10-19T08:00:00.000Z" }
  ],
  "languages": [
    { "language": "fr", "sources": 57, "articles": 134 },
    { "language": "en", "sources": 4, "articles": 8 }
  ],
  "series": {
    "start": "2026-10-12T10:00:00.000Z",
    "step_minutes": 60,
    "articles": [0, 0, 0, "…", 14, 9],
    "sources": [0, 0, 0, "…", 11, 7],
    "new_sources": [0, 0, 0, "…", 3, 1]
  }
}

This is the same data as the "Where it is covered" card of a trend page.

countries lists every publisher country, most sources first, with the first article and the busiest hour in each. A source is a distinct site.
series covers the last 7 days in 168 hourly buckets starting at start. articles counts articles per hour, sources the distinct sources publishing that hour, new_sources those publishing on the story for the first time. (The arrays above are shortened; the real ones hold 168 numbers.)

Recipes

Question	Request
What is France talking about today?	`GET /trends?country=FR&since_hours=24&sort=sources`
Which stories about France are covered abroad?	`GET /trends?country=FR&reach=international,global`
What do German media cover most right now?	`GET /trends?publisher_country=DE`
Which tech stories are breaking out?	`GET /trends?category=tech,ai&stage=breakout`
Who broke this story?	`GET /trends/{trend_id}/articles?sort=oldest&limit=1`
Has it crossed borders, and when?	`GET /trends/{trend_id}/coverage`, then `countries[].first_article_at`
What is new in the last hour?	`GET /trends?since_hours=1&sort=recent`

Polling for new stories? Once every few minutes is plenty, and stays far below the rate limit.

Trends

List trends#

Filters#

Sorting#

The fields of a trend#

Get one trend#

List a trend's articles#

Where a trend is covered#

Recipes#

List trends

Filters

Sorting

The fields of a trend

Get one trend

List a trend's articles

Where a trend is covered

Recipes