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HomeGuidesAPI reference
HomeGuidesAPI reference
  • Get started
    • Quickstart—Verify a Business
    • Quickstart—Register an entity for payroll taxes
    • Learn how Middesk works
    • Security
    • Changelog
  • Build with Middesk
    • Get your API keys
    • Understand API changes
    • Status codes and errors reference
    • Implement webhooks
    • Secure webhooks
    • Use GraphQL
    • Connect MCP
  • Verify a business (KYB)
    • Verify TIN
    • Verify name and address
    • Verify Secretary of State status
    • Verify owners and officers
    • Screen for sanctions and watchlists
    • Search for adverse media
    • Search for Politically Exposed Persons
    • Implement KYC
    • Evaluate online presence
    • Assess credit risk
    • Accelerate onboarding
    • Monitor business activity
    • Manage business entities
    • Work with agents
Get started

Changelog

March 5, 2026
March 5, 2026

Dashboard

Enhanced Sandbox Preview

New enhanced sandbox mode available in Technology Preview. Define custom test businesses and use pre-built scenario templates to simulate specific verification outcomes directly from the Dashboard. Request access or view the enhanced sandbox guide.

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