API

Companies House intelligence as a feed.

The same data model that powers the GUI, exposed as a REST API. Per-key rate limits, OpenAPI schema and webhook subscriptions for every signal.

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Endpoints

A small surface, well-documented.

We expose the data products you need, not every internal route. JSON in, JSON out. Versioned at /v1.

Method	Path	Description
GET	/v1/companies/{number}	Public profile, sector, lifecycle, key dates.
GET	/v1/companies/{number}/risk	Risk band and current pattern flags.
GET	/v1/companies/{number}/network	Three-degree director and PSC graph.
GET	/v1/sectors/{sic}	Sector benchmarks (6 medians) and trend.
GET	/v1/distress	Live distress feed, paginated, filterable by sector.
GET	/v1/patterns	Catalogue of 37 patterns with monthly trends.
POST	/v1/watchlists	Create or update a watchlist for webhook alerts.

Example

Fetch risk band for any UK company.

One request. Authenticated with a header API key. Cached at the edge for 24 hours.

curl https://vip.fulcrums.co.uk/v1/companies/00319964/risk \
  -H "X-Fulcrums-Key: ${FULCRUMS_KEY}"

# {
#   "company_number": "00319964",
#   "name": "Tuffnells Parcels Express Limited",
#   "risk_band": "high",
#   "patterns": [
#     "board_resignation_cascade",
#     "all_assets_charge_stack",
#     "spike_day_event"
#   ],
#   "elevated_at": "2020-07-12T00:00:00Z",
#   "lead_time_months": 35
# }

Want to wire this in?

We share OpenAPI specs, sample SDK snippets and your first API key on the demo call.

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