Accounting API
A server-side accounting API for app workflows.
Use LedgerLine from your backend to create customers, invoices, estimates, payments, bills, documents, and reports. Build with AI can turn your app idea into the setup plan before you open the API reference.
Keep API keys server-side
What the API powers
Workflow categories before endpoint details.
Money In API
Create customers, estimates, invoices, invoice posting workflows, payments, and A/R reports.
Open docs
Money Out API
Create vendors, bills, bill posting workflows, vendor payments, reversals, and A/P reports.
Open docs
Documents API
Link private evidence, rendered documents, document shares, portal documents, and server-routed downloads.
Open docs
Reports API
Read summary, A/R, A/P, and 1099-support report views from posted activity.
Open docs
Webhooks
Use webhook docs for delivery, signing, retry, and event-handling guidance.
Open docs
Build with AI handoff
If you do not know which endpoints you need, start with the planner.
Build with AI generates recommended modules, API categories, setup steps, fake env placeholders, test workflow, implementation prompts, and demo links.
Open Build with AIThe bridge is intentional.
Nontechnical builders can plan first. Developers can jump straight to route-level docs. Both paths keep API keys server-side and avoid live calls from public marketing pages.
Developer resources
Open the technical reference when you are ready.
Quickstart
Follow the setup/testing path for connected apps, API keys, first calls, and smoke checks.
Open resource
API Reference
Browse read-only fake request and SDK examples without sending live calls.
Open resource
Recipes
Use workflow recipes for money-in, money-out, documents, reports, webhooks, and errors.
Open resource
Webhooks
Review webhook event, signature, retry, and delivery behavior.
Open resource
OpenAPI
Open the manual OpenAPI YAML for the current public route reference.
Open resource
Feature Areas
Feature pages for API workflows.
Read module-level explanations for invoice, bills, document evidence, report, and 1099 support workflows before opening endpoint details.
Invoices And Money-In
Customers, estimates, invoice posting, payments, and A/R workflows.
Open feature
Bills And A/P
Vendors, bills, posting, vendor payments, reversals, and A/P reporting.
Open feature
Documents And Evidence
Private evidence files, Document Center workflows, shares, portals, and CPA support.
Open feature
Reports
Read-only summary, A/R, A/P, ledger, and 1099 support reporting.
Open feature
1099 Support
Vendor metadata and posted payment summaries for CPA/tax-support review.
Open feature