One Address Book for Your Entire Financial OS.
Add contacts in once, and they auto-populate everywhere automatically. Teammates, investors, vendors, service providers, and more, ready wherever you need them.
Built for Trust and Speed
Add Once, Use Everywhere
Add a contact with their name, wallet, and bank details. Every app in Mezzanine can reference them instantly.
Bulk Upload
Import hundreds of contacts from CSV. Map columns, resolve duplicates, and get your address book migrated in minutes.
Auto-Detection & Extraction
Upload an invoice and Mezzanine extracts the counterparty. New contacts are suggested automatically. Review and confirm.
Customizable Tags & Roles
Label contacts as Vendor, Member, Director, Investor, Service Provider, or any custom tag. Roles determine where contacts appear.
Automatic Wallet Screening
Addresses are checksum-validated and screened against OFAC sanctions lists automatically before they can be used in any payment.
Additional Manual Verification
Mark contacts as manually verified after your own due diligence. Verified status carries across the entire platform.
Roles That Route Themselves
Tag a contact once and they automatically appear in every app that needs them. All the right people in the right place without re-entry.
Synced & Screened, Automatically
As you upload invoices, receive payments, and more, contact information is detected, extracted, and screened automatically.
Add Once, Use Anywhere
Add Contacts
Enter their name, wallet address, and bank details. Or upload a document and Mezzanine extracts them automatically.
Tag Roles
Label them as Vendor, Investor, Director, Contractor, or any custom tag. One contact can hold many roles.
Use Anywhere
Every app in Mezzanine references the same contact record. No re-entry, no duplicates, no drift.
Included on every plan. Transactions cost 0.5% on Pay as you go and 0.0% on flat-fee plans.
See pricing →