Joist API
No API, webhooks, or Zapier connector. The only programmatic path out is the QuickBooks Online sync, which runs once nightly, requires a Pro or Elite subscription, and pushes only issued estimates and invoices. Everything else needs screen scraping.
Frequently asked questions
Joist scores F on the API Report Card. No API, webhooks, or Zapier connector. The only programmatic path out is the QuickBooks Online sync, which runs once nightly, requires a Pro or Elite subscription, and pushes only issued estimates and invoices. Everything else needs screen scraping.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly.
Joist is a mobile-first estimating, invoicing, and payments app for residential trades contractors, owned by EverCommerce (acquired in 2019).
Construction, specifically solo operators and small (1–10 person) residential trades contractors. A contractor downloads Joist on a phone, builds a branded estimate at the kitchen table using a saved line-item catalog and pricing rules, attaches up to 20 job-site photos, gets the homeowner to e-sign the contract in-app, and either collects a deposit immediately via Joist Payments (Stripe or PayPal) or sends a follow-up invoice.
High within the SMB trades segment. Joist advertises 1.3M+ contractors served historically and ~150K active contractors today, with a 4.5+ star rating across the iOS App Store and Google Play and millions of downloads.
Joist holds the entire revenue-cycle dataset for a residential trades contractor: every client and homeowner contact record, every estimate with full line-item product/labor catalog and pricing, every invoice and AR aging state, every job-site photo (up to 20 per document), every signed contract and e-signature record, every payment transaction processed through Joist Payments (Stripe or PayPal, including credit/debit, ACH, Apple Pay, Google Pay, Venmo, Tap to Pay), every PayPal Pay Later financing application and approval for tickets $30–$10,000, every work order, and the nightly QuickBooks Online sync mapping of all of the above to a contractor's chart of accounts.
Mature. Joist was founded in Toronto in 2013, acquired by EverCommerce in 2019, and is roughly 13 years old.
No public API, no developer portal, no OpenAPI spec, and no public sandbox, Joist is a closed system for any integration beyond QuickBooks. No webhook system, third-party tools cannot subscribe to estimate-created, invoice-paid, or contract-signed events, forcing polling-via-scraping for any real-time integration. Full sourced list under Sources below.
Common alternatives include Jobber, Housecall Pro, ServiceTitan, FreshBooks, QuickBooks Online, Invoice Simple. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.
Yes. Supergood maintains an unofficial Joist API and MCP server so AI agents and internal tools can read and write Joist data. See the Joist integration docs at supergood.ai/docs/joist-api.