Every market-moving event — leadership changes, regulator actions, activist campaigns, short reports, deal announcements, trading halts, layoffs, AI releases, and filings — normalized into one feed, one API, and one set of webhooks.
A single ordered stream of typed events. Each row is a state change — not an article, not a mention. Click any row for the full event object.
| Alternative | What it gives you | Where it breaks | What Hyperfeed gives instead |
|---|---|---|---|
| Google Alerts | Mentions | Noise, duplicates, no schema | → Canonical events |
| News APIs | Articles | Still requires interpretation | → Typed event objects |
| SEC APIs | Filings | One source class, often late | → Cross-source market reality |
| Media monitoring | Coverage dashboards | Broad, PR-heavy, demo-led | → Self-serve event API |
| Governance suites | Analysis | Sales-led and broad | → Developer-first event data |
Every event carries the same envelope: an event_type, an explicit assertion_type, a full lifecycle, source citations, and confidence. Build dashboards, trigger webhooks, or stream the tape into your model.
// Probes, layoffs, AI releases for watchlist since April 1 GET /v1/events?tickers=TSLA,SNAP,META &event_types=regulatory_probe_upgraded, company_layoff_announced, frontier_model_released &since=2026-04-01 Authorization: Bearer hf_live_...
{
"data": [
{
"id": "evt_snap_20260415_workforce_reduction",
"event_type": "company_layoff_announced",
"assertion_type": "official_statement",
"status": "official_announced",
"priority": "high",
"entity": {
"entity_id": "ent_snap_inc",
"ticker": "SNAP",
"name": "Snap Inc.",
"entity_type": "public_company"
},
"actors": [
{ "type": "issuer", "name": "Snap Inc." }
],
"action": "layoff_announced",
"timestamps": {
"announced_at": "2026-04-15T00:00:00Z",
"effective_at": null,
"detected_at": "2026-04-15T14:04:00Z"
},
"source": {
"type": "trusted_news",
"name": "Reuters",
"url": "https://www.reuters.com/...",
"authority_tier": 2
},
"summary": "Snap announced layoffs affecting about 1,000 employees, including 16% of full-time staff, amid AI-driven efficiency efforts and activist pressure.",
"payload": {
"affected_employees": 1000,
"affected_percent_workforce": 16,
"ai_related": true,
"activist_context": true
},
"tags": ["layoffs", "ai_efficiency", "activist_pressure"],
"confidence": 0.94
}
]
}Every family emits the same envelope — ticker, lifecycle, sources, assertion type, confidence. Subscribe to everything, or narrow to what moves your book.
CEO/CFO changes, board seats, interim roles, founder exits.
leadershipFDA approvals/rejections, NHTSA probes, DOJ/FTC actions.
regulatory13D stakes, activist letters, proxy fights, public campaigns.
activistShort-seller reports, company denials, follow-up disclosures.
short_sellerTrading halts, delisting notices, listing transfers, exchange actions.
market_noticeAcquisitions, restructurings, bankruptcy milestones, deal terms.
corporate_actionLayoffs, WARN notices, AI-driven restructuring, hiring freezes.
workforceModel releases, API launches, pricing changes, deprecations.
ai_releaseA short-seller report
is not the same kind of truth as
an FDA rejection.
Catch leadership changes, FDA rejections, activist stakes, short reports, and deal terms without reading ten sources. Route typed events straight into your pre-trade workflow.
Track regulatory actions, company responses, litigation, trading halts, and market-sensitive developments. One audit-ready ledger instead of ten alerting tools.
Use executive turnover, activist pressure, and restructurings as buying signals, talent signals, and relationship triggers. Webhook into your CRM — no scraping required.
Give your models typed, source-cited events instead of brittle scraping logic and noisy article search. Ground agents in verifiable state changes.
Every tier includes typed events, source trails, and watchlists. Upgrade for real-time access, webhooks, and broader history.
Precision, latency, and correction rate will be first-class metrics — measured and published on a live quality page once we launch.
assertion_type: allegation. The event is the publication of the claim, not validation of its truth.