e-Próspera API

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e-Próspera API

Integrate with Próspera's registry, entity incorporation, and identity services.

REST quickstart
OAuth / OIDC

Registry and entities

Verify resident permit numbers, search the legal-entity registry, and incorporate LLCs programmatically.

OAuth 2.0 / OpenID Connect

Let users sign in with their e-Próspera account and access consented personal and entity data on their behalf.

Catalyst referrals

Attribute entity incorporations to your referral code and track referral activity via the API.

What the API covers ​

  • Registry verification and entity search
  • Legal-entity incorporation (LLC)
  • OAuth 2.0 / OpenID Connect authentication and user-authorized data access
  • Catalyst referral attribution and reporting

Some portal features (tax filing, annual reports, etc.) are not yet exposed through the public API. Let us know if you need something that isn't documented here.