Merchant KYB & Sanctions API for Payment Providers

Prometiam is a company-data and sanctions layer for payment service providers and acquirers who underwrite merchants at volume and then carry that risk for the life of the relationship. Verify merchants against every registry the API covers and keep them under watch from one API — registry verification, UK beneficial ownership, and sanctions screening (beta) — with webhooks when a merchant changes.

Why PSPs pick Prometiam

Resolve any multi-country merchant by name or national ID (NIF / SIREN / company_number) with daily-fresh registry data.
Screen the merchant and its officers against the official lists (as at November 2026) — EU, UN, OFAC, UK, Australia (DFAT), French gels, national lists, and the US Consolidated Screening List (BIS Entity List, Denied Persons, ITAR) — in one scored call. PEP screening is beta and Spain-only (no relatives or close associates, so not sufficient on its own for FATF); no adverse-media.
Watchlist webhooks fire on director changes, capital reductions, dissolutions, and insolvency filings. Company monitoring covers every live country except France and Chile.
Insolvency early warning: Spanish concurso and French procédure collective filings the day they publish.
Beneficial ownership is UK PSC only, plus directors/officers for ES/FR/GB/NO/PL. Ireland is company-level only. Full national UBO registers are not yet exposed.

Pricing

Onboarding a merchant costs roughly 11 credits. A PSP onboarding 500 merchants a month (~5,500 credits) plus daily monitoring sits inside the Professional tier (€29.99/mo, 10,000 credits); 2,000 merchants a month (~22,000 credits) fits €99.99/mo (50,000 credits). Webhooks are on every plan, and sanctions screening is included from Professional up. 14-day free trial and public pricing.

Prometiam pairs with your identity/document-verification and transaction-monitoring stack rather than replacing them.