Start building with the Middesk API
Quickstart
Make your first API call in 5 minutes. Set up authentication, verify an identity, and review the results.
Core concepts
Learn about verification types, risk signals, data models, and how the API processes identity data.
Use cases
Verify a business (KYB)
Confirm business identity, screen against sanctions and PEP lists, and run KYC on associated officers — all from a single API.
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Improve onboarding conversion
Cut drop-off with Autocomplete, Smart populate, and instant Signal risk scoring before customers see a long form.
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Monitor business activity
Track changes to registrations, addresses, officers, watchlist hits, bankruptcies, and liens with webhooks.
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Manage business entities
Register child entities for payroll taxes, manage tax registration items, and track jurisdiction status.
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