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Introduction
  • Overview
  • Quickstart
API reference
  • Authentication
  • Errors
  • Rate limits
  • Pagination
  • Interactive explorer
Resources
  • Organization
  • Leads
  • Clients
  • Projects
  • Quotations
  • Invoices
Integrations
  • Overview
  • Webhooks
  • Public portal
  • Zapier
  • Make / n8n recipes
  • Xero (coming soon)

Resources

Clients

The Client resource represents a counter-party your org does business with — typically a homeowner, project owner, or MCST.

List clients

GET/api/v1/clients

Returns clients in your org, newest first, cursor-paginated.

Supports the standard pagination query params: limit (1–100, default 50) and cursor.

terminal
curl "https://www.zengbook.com/api/v1/clients?limit=25" \
  -H "Authorization: Bearer zb_live_..."
200 OK
{
  "data": [
    {
      "id": "cli_01HX...",
      "name": "Tan Renovations Pte Ltd",
      "email": "[email protected]",
      "phone": "+65 9123 4567",
      "address": "10 Anson Road, #03-01, Singapore 079903",
      "notes": null,
      "createdAt": "2026-05-12T03:14:22.412Z"
    }
  ],
  "hasMore": true,
  "nextCursor": "eyJpZC..."
}

Get a client

GET/api/v1/clients/{id}

Returns a single client. 404 if the ID does not exist in your org.

terminal
curl https://www.zengbook.com/api/v1/clients/cli_01HX... \
  -H "Authorization: Bearer zb_live_..."
200 OK
{
  "id": "cli_01HX...",
  "name": "Tan Renovations Pte Ltd",
  "email": "[email protected]",
  "phone": "+65 9123 4567",
  "address": "10 Anson Road, #03-01, Singapore 079903",
  "notes": null,
  "createdAt": "2026-05-12T03:14:22.412Z"
}

Fields

FieldTypeNotes
idstringPrefix cli_.
namestringDisplay name.
emailstring | nullPrimary contact email.
phonestring | nullFree-form phone string.
addressstring | nullFree-form postal address.
notesstring | nullInternal notes.
createdAtstringISO 8601 UTC timestamp.

Related webhook events

  • client.created — fires when a client is added in-app or via integration. See the event reference.