APIs

Every API is a clean wrapper over UK public data, priced and documented transparently.

UK Business Risk + Director Score

Beta

Per-company risk score (0-100) plus director credentials, derived live from Companies House and insolvency notices.

compliancekybrisk-score

From £39/mo

UK Companies House Real-Time Watch

Beta

Webhook alerts on every Companies House change for the companies you care about, with a polled changes feed.

compliancecompanies-housemonitoring

From £29/mo

Conveyancer's Compliance + Property Pack

Beta

Buyer + seller (sanctions / PEP / adverse-media / FCA Warning) + property + environmental, in one signed pack PDF.

complianceamlsuite

From £4.95/mo

UK EPC Energy Performance

Beta

Enriched EPC data for any UK address, with retrofit cost estimates and band-progression history.

propertyepcenergy

From £39/mo

UK FCA Regulated Firm Verification

Beta

Verify any UK firm or individual against the FCA Financial Services Register in one API call.

compliancekyckyb

From £19/mo

Letting Agent Client Check

Beta

Tenant + landlord compliance plus the property-risk overlay nobody else ships, in one signed audit-grade PDF.

complianceamlsuite

From £4.95/mo

UK Postcode Intelligence

Beta

Crime, flood, schools, deprivation, EPC and property prices for any UK postcode in one API call.

propertyintelligencepostcode

From £29/mo

UK Sanctions Screening

Beta

Screen any name against OFSI, UN, EU sanctions plus OpenSanctions PEP and adverse-media catalogues. One API call.

complianceamlsanctions

From £39/mo

At a glance

Every API in one row. Click the name for the full spec, sample request, and tier pricing.

API	Inputs	Outputs	Use case	From
UK Business Risk + Director ScoreBeta	Company number	A-F risk band, 8 factor codes, director-network risk flags	Score a corporate client at engagement or annual review	£39/mo
UK Companies House Real-Time WatchBeta	Company number	Live profile, officers, filings, status, change-feed snapshots	KYB lookup or continuous monitoring of a corporate portfolio	£29/mo
Conveyancer's Compliance + Property PackBeta	Buyer + seller party arrays, property, optional matter reference	Per-side verdict, deep KYB with PSC walk, property pack, matter cert	Residential conveyancing AML at file-open; SRA file-audit evidence (S2)	£4.95/mo
UK EPC Energy PerformanceBeta	Postcode, UPRN, or full address	EPC band, MEES verdict, upgrade cost + payback period at given rent	Verify MEES legal-let status pre-tenancy; plan for MEES 2030	£39/mo
UK FCA Regulated Firm VerificationBeta	FRN or firm name	Status, permissions, principals, Warning-Listed flag, SRA + CH cross-ref	Verify a UK-regulated firm before partnership, payment, or referral	£19/mo
Letting Agent Client CheckBeta	Tenant party + optional landlord + property postcode	Per-party verdict, full AML, property pack, signed PDF, 7-year verify URL	Pre-tenancy AML + MEES + flood check on every new let (S1)	£4.95/mo
UK Postcode IntelligenceBeta	UK postcode	Flood, crime A-E, EPC, radon, coal, contaminated-land, knotweed	NTSELAT Part B+C material-information disclosure for a property	£29/mo
UK Sanctions ScreeningBeta	Full name, optional DOB and nationality	PASS / REVIEW / FAIL, per-list matches, OFSI + UN + EU + 40 jurisdictions	Screen a person or entity at MLR-2017 reg 28 client-onboarding	£39/mo

PAYG-equivalent retail pricing for non-developer buyers is on certaby.com/products. Stratum subscription tiers above include monthly free calls; see each API page for tier breakdown.