ZipBooks API
ZipBooks publishes a REST API at api.zipbooks.com/v2 following JSON:API 1.0, with three documented collections: Contacts, Estimates, and Invoices. Auth is a JWT obtained by posting account email and password. No webhooks, SDKs, or sandbox, and the docs warn of breaking changes at any time.
Frequently asked questions
ZipBooks scores C on the API Report Card. ZipBooks publishes a REST API at api.zipbooks.com/v2 following JSON:API 1.0, with three documented collections: Contacts, Estimates, and Invoices. Auth is a JWT obtained by posting account email and password. No webhooks, SDKs, or sandbox, and the docs warn of breaking changes at any time.
ZipBooks has an official API, but teams routinely hit its limits: gated access, partial coverage, or paid tiers. Most end up supplementing it with exports or an unofficial API layer like Supergood.
ZipBooks is a cloud-based small-business accounting, invoicing, and time-tracking platform built and operated by ZipBooks, Inc., headquartered in Lehi/Salt Lake City, Utah.
Vertical: Accounting / Tax / Audit. Sub-vertical: freemium SMB accounting and invoicing aimed at solopreneurs, freelancers, very-small service businesses, and the bookkeepers/accountants who serve them. Sending and tracking unlimited branded invoices (Starter tier hook). Accepting customer payments via Square, PayPal, and credit card.
Low-to-moderate.
Customer and vendor master data (contacts: names, addresses, emails, phone, payment terms). Invoices, recurring invoices, line items, taxes, discounts, statuses, and payment history. Estimates/quotes and their conversion state to invoices.
ZipBooks the company was founded in 2015 in Utah, making it ~11 years old as of 2026. The web app is modern, cloud-native, and responsive; the API was rebuilt to JSON:API spec (api.zipbooks.com/v2) at some point in the company's lifetime.
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 ZipBooks API and MCP server so AI agents and internal tools can read and write ZipBooks data. See the ZipBooks integration docs at supergood.ai/docs/zipbooks-api.