Checkbook.io ACH API

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Checkbook.io ACH API is ranked #4 of 21 in ACH payment processing software on Inferse. It runs on API, Web. There is no free plan. Paid plans start at $2,000/mo.

Compared on ACH payment processing software

Free plan: Nocheckbook.io
Paid from: $2,000/mocheckbook.io
Recurring ACH payments: Yescheckbook.io
ACH credit support: Yescheckbook.io
Same-day ACH: Yescheckbook.io
API access: Yescheckbook.io
Webhook support: Yescheckbook.io
ACH transaction limit: 2,000 USDcheckbook.io

Facts

ACH disbursements: The ACH API sends funds directly to recipients’ bank accounts using their routing and account numbers.checkbook.io · 29 Sept 2026
Dashboard: Users can disburse ACH payments through the API or Checkbook’s online dashboard.checkbook.io · 29 Sept 2026
Recipient flow: Recipients can receive a Digital Check by email and verify their bank account for deposit.checkbook.io · 29 Sept 2026
Failed payments: The ACH page says Checkbook automatically reconciles failed transactions, including those caused by incorrect routing or account numbers.checkbook.io · 29 Sept 2026
Bank data: The ACH page says businesses do not need to store recipients’ sensitive banking information because Checkbook handles compliance.checkbook.io · 29 Sept 2026
ACH settlement: The ACH documentation describes standard ACH settlement as typically taking 1–3 business days and eligible same-day ACH as settling the same business day.docs.checkbook.io · 29 Sept 2026
Integrations: Checkbook lists QuickBooks Online and AccountingSeed as pre-built integrations.checkbook.io · 29 Sept 2026
QuickBooks: The QuickBooks integration initiates Checkbook payments from QuickBooks Online and updates records with associated payment numbers.docs.checkbook.io · 29 Sept 2026
Security: Checkbook says production data is stored in a physically secure PCI DSS compliant off-site data center and server access uses encrypted network channels.checkbook.io · 29 Sept 2026
API keys: The API documentation says requests require authentication and secret keys should be kept private and stored securely server-side.docs.checkbook.io · 29 Sept 2026
Support: The pricing page lists live support, a dedicated customer success manager, and a private Slack channel for Business and Enterprise plans.checkbook.io · 29 Sept 2026
Default limit: The pricing FAQ states a default Digital Check limit of $2,000 per transaction, $2,000 per 24 hours, and $15,000 per month, with increases available by contacting support.checkbook.io · 29 Sept 2026
Intended users: Checkbook describes its marketplace offering for businesses such as landlord and freelance marketplaces, gig economy platforms, and accounting platforms.checkbook.io · 29 Sept 2026