Sage Intacct REST

At a Glance

Difficulty

⚠️INVOLVEDPaid Web Services Developer License + Per-Consumer Admin Authorization Required

Authentication

OAuth 2.0OAuth 2.0 authorization code grant — a real OAuth flow, unlike the sage-intacct (XML) connector, which uses a Sender ID plus company/user credentials.

Webhooks

Virtual webhooks — created, updated and deleted events across 13 of the supported accounting resources. Sage Intacct has no native webhooks.

Partnership Required

Yes(A Sage Web Services developer license is required — via the Sage Intacct Marketplace Partner Program, or directly from Sage through your account manager.)

Partnership Application

Sage Intacct Marketplace↗

Apideck Credentials

AvailableAvailable for testing and evaluation — consumers authorize against Apideck's registered Sage application, so the consent screen shows Apideck branding.

Costs

Sage Intacct Marketplace Partner Program membership is $2,500/year, plus $0.015 per API call once your consumers are live. Effective August 2026.

Sandbox Availability

Available(Registering a Non-production OAuth app is free; a Sage Intacct sandbox company itself is a paid, licensed feature, gated by eligibility and not self-serve.)

Account Type Required

Sage Intacct company with a Web Services subscription

Consumer Access Level

The connection inherits the authorizing Sage Intacct user's role permissions, and a company Admin must authorize the application in each consumer's company.

Rate Limits

Sage Performance Tier 1: 100,000 API transactions/month per company, shared with the XML API. Over-limit: 429 (GW-0010). Headroom: x-downstream-ratelimit-*.

Responsibility matrix

Environments

Sandbox

Testing runs against an application registered at developer.sage.com/console with the Non-production client scope, pointed at a sandbox, trial or developer company. The scope cannot be changed after the application is created, so each environment needs its own registration, and its client credentials are separate from the production ones. A full sandbox company (a copy of production) is requested through a Sage support case and refreshed at most 4 times a year; it is not offered to companies managed through a Sage Intacct multi-entity console or purchased through a reseller. Several modules are unavailable inside a sandbox, including Fixed Assets, Collections, Prepaid Expense Amortization, Advanced Audit Trail and the interactive reporting tools, and a sandbox is valid only to the end of the production billing cycle.

Production

Live companies require an application registered at developer.sage.com/console with the Production client scope, issued once your Web Services developer license is in place. ⚠️ Development credentials CANNOT be used with production accounts.