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Integrations · API & Integrations

If it has an API, it can work with KztOne

The public API exposes contacts, products, stock, orders, invoices, payments and activities. Outgoing webhooks tell your systems when things change. Native connectors use the same framework.

Included in
Growth and above
Status
Available now
Module
Integrations
Trial
Included in the 7-day trial
Illustration of the KztOne Command Center: key numbers, items needing attention and the AI assistant

A clean, versioned REST API

Base path /api/v1 with consistent pagination, filtering, validation and error formats. Long operations return a job id instead of holding the request open.

  • Business records: contacts, products, inventory, orders, invoices, payments, activities
  • Integration records: connections, sync jobs, mappings, conflicts
  • Custom objects at /custom-objects/{key}/records

Scoped keys and signed webhooks

API keys carry scopes and belong to a workspace. Outgoing webhooks are signed, retried with backoff, and logged per delivery. Delivery is at least once, so events carry ids for deduplication.

  • Scoped API keys with expiry and revocation
  • Signed webhook payloads with delivery logs
  • Idempotency keys on writes

Zapier, Make and custom connectors

Use Zapier or Make with the API and webhooks today. A no-code connector builder for custom APIs and a developer SDK for new native connectors are on the roadmap.

  • Zapier and Make (beta)
  • No-code API connector builder (planned)
  • Developer connector SDK (planned)

What you get

Fits your stack
Custom websites and apps connect without waiting for a native connector.
Safe
Scopes and signatures keep integrations contained.
Observable
Every call and delivery is logged.

Questions

Is the API rate-limited?
Yes, per workspace per day: Free 500 requests, Starter 5,000, Growth 20,000, Business 100,000 and Scale 500,000. Limits are visible in your billing page.
Which plans have API access?
API keys and outgoing webhooks are on Growth and above. Inbound webhooks for forms and connectors work on every plan.
Is there documentation?
Yes. An OpenAPI specification and reference documentation are published at /docs/api.
Which KztOne plan includes api & integrations?
API & Integrations is included in the Growth plan and above. Every new workspace gets a 7-day trial of the full platform, so you can try it before choosing a plan.

See it with your own data

Create a workspace, import your records and try every feature free for 7 days.