Zeng Book
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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)

Integrations

Connect Zeng Book to your stack

Push events to your own systems, share live documents with end-clients, or build automation flows without writing custom services.

Available integrations

Webhooks

Receive signed JSON deliveries on your own endpoint when invoices are paid, quotations accepted, and 14 other event types.

Public portal

Share a quotation with your client via a token-gated link. They can accept or reject without signing up.

Zapier

Subscribe to events via REST Hooks and call write actions. Full spec for the official app and for building private custom apps.

Make / n8n recipes

Generic no-code automation: trigger flows from Zeng Book webhooks and call the REST API from any HTTP module.

Xero accounting

Coming soon

Sync paid invoices and contact records to Xero. Currently on the roadmap.

Two patterns to know

  • Push (webhooks) — Zeng Book POSTs to your URL the moment something happens. Use this for low-latency reactions: Slack notifications, payment-confirmation emails, ticket creation in your project tracker.
  • Pull (REST API) — you call our endpoints on a schedule. Use this for batch reporting and data exports — overnight CSV dumps, BI tool refreshes, reconciliation jobs.

Most production integrations use both: webhooks for real-time triggers, the REST API for occasional re-syncs and backfills.