KYB for fintech: the KYB API for onboarding business customers

Prometiam is the company-data and screening layer for B2B fintechs onboarding and monitoring corporate customers across every registry the API covers — one REST API, one bearer token, one schema. It answers the registry and screening legs of KYB: does the company legally exist, who controls it, is any party sanctioned, and has anything changed since onboarding.

Why fintechs pick Prometiam

One key, every registry: every registry the API covers, in the same schema for each country. Officers are held for Spain, France, the UK, Norway, Poland and the Czech Republic (Polish natural persons are masked by the register itself; Czech natural persons are the name and the month and year of birth only); the other countries are company records only.
Lookup and validation in one call: official legal name, status, address and VAT number from the register, same schema for each country. Beneficial ownership is the UK PSC register only; directors and officers for ES/FR/GB/NO/PL.
Sanctions and US export-control screening (beta) in one call across the official lists (as at November 2026) — EU, UN, OFAC, the UK Sanctions List (FCDO), Australia (DFAT), French Registre des gels, national lists, and the US Consolidated Screening List — trigram-fuzzy with confidence scores. PEP screening is beta and Spain-only (no relatives or close associates, so not sufficient on its own for FATF); no adverse-media.
Ongoing monitoring: daily-fresh corporate-event, director-change, and insolvency feeds to catch post-onboarding risk. Company monitoring covers every live country except France and Chile.
Priced for builders: public tiers from EUR 0 (500 credits, nothing charged for 14 days) to EUR 99.99/mo, self-serve, no annual lock-in. Hosted in the EU (Frankfurt).

AMLR readiness

The EU Anti-Money Laundering Regulation applies from 10 July 2027 as one harmonized rulebook. Prometiam covers the registry and screening legs and the ongoing-monitoring obligation — not natural-person identity verification, document checks, or adverse media, which pair with a dedicated identity vendor.