Joist API Guide for Contractors

One-line verdict: Joist has no API, no webhooks, and no Zapier app — the only way data leaves is Joist’s own QuickBooks sync, on Pro or higher. Openness: 1 / 5 — rated 1 because every connection rung we checked is absent in the vendor’s own materials; the single documented connection is a vendor-built sync, not something you or a builder can build on.

The connection that works

There is no rung 1. Joist (part of the EverPro/EverCommerce family) publishes no developer portal, no API reference, and no API-key documentation anywhere in its own materials. No direct connection exists to document — no endpoints, no auth model, no rate limits.

There is no bridge either. Zapier’s own community answers state it plainly: Joist “does not have a public Zap app available yet” and “currently doesn’t have an integration with us.” No Make app was found. When the bridge company itself says there’s no app, the bridge rung is closed, not merely unverified.

The one real connection is a sync Joist runs itself: link your accounts and Joist automatically sends estimates and invoices to QuickBooks Online, running in the background daily after a one-time setup, with a manual sync available anytime. The vendor’s plan gate is stated on its own pages: the QuickBooks sync is available on Joist Pro or Elite (and listed on the current Run plan). That sync is genuinely useful — and it is a one-way, vendor-defined pipe: estimates and invoices, Joist to QuickBooks, on Joist’s terms.

Everything else on the pricing page — estimates, invoices, online payments, change orders, jobs and scheduling, even “Joist Reviews” — is an in-app product feature. Features are not connections.

Can automate

• Books without re-typing — estimates and invoices land in QuickBooks Online automatically on Pro and higher, so your bookkeeper works from the same numbers your crews wrote.
• Everything inside the app — Joist’s own features (payments, change orders on Elite, scheduling on Run) work as designed, inside Joist.

Can’t automate

• Any API connection — none exists, and any claim of one is UNVERIFIED against the vendor’s own materials. No documented API of any kind, for any object: clients, jobs, estimates, invoices, or payments.
• Zapier or Make automations — no app exists on either bridge; Zapier’s community says so directly. (Private or invite-only bridge apps are sometimes possible in general — none for Joist was verified.)
• Webhooks and instant triggers — none documented. Nothing in Joist can notify your other tools when an estimate is approved or an invoice is paid.
• Reading Joist data back out as a “Joist integration” — once data reaches QuickBooks, tools can work with it there (see the QuickBooks guide), but that’s a QuickBooks connection, not a Joist one.
• “Joist Reviews” as a reviews API — it’s an in-app review-request feature on Elite, not an endpoint. Like every platform here, Joist has no verified reviews API.

Hidden gate: There is no door to open — Joist has no API key, no Zapier app, and no webhooks; the only way data leaves is its own QuickBooks sync on Pro or higher. If your plan depends on Joist talking to anything else, the plan needs a different center.

Build fit — what this platform supports well

• Estimate Follow-Up — not buildable against Joist: no trigger fires when an estimate is sent or approved. Follow-up runs on our messaging layer, keyed off your own records or the QuickBooks copy.
• Invoice Chase / AR — indirect: invoices sync to QuickBooks, and the chase runs against QuickBooks (see the QuickBooks guide). Joist supplies the invoice; it can’t supply the signal.
• Speed-to-Lead — not on Joist: leads and follow-up live in whatever tool captured the lead.
• Review Engine — like every platform here, Joist has no verified reviews API, so the review ask runs entirely on our system.

What this means for your shop

If you’re a solo operator or a small crew and Joist’s phone-first estimating and invoicing is all you need, this score costs you nothing — plenty of good shops run exactly that way. The score matters the day you want a second tool involved: a follow-up system, a call catcher, a dashboard. At that point Joist is a wall with one pipe through it, and your automation gets built around the pipe — in QuickBooks — not around Joist.