For AI agents: visit https://developer.bill.com/llms.txt for an index of all pages formatted in Markdown and endpoints in OpenAPI.
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System Status
v2
Guides
API Reference
Release Notes
Postman Collection
Video Tutorials
January 21st, 2026
Improved
Spend & Expense Transactions API improvements
January 21st, 2026
Added
New API endpoint for login organizations
January 20th, 2026
Improved
Vendors API improvements
January 20th, 2026
Improved
Payments API improvements
January 20th, 2026
Added
New API endpoint for BILL exchange rates for multiple vendors
January 16th, 2026
Added
New developer tutorial on YouTube
January 16th, 2026
Improved
BILL widgets release 2026-01-16
January 5th, 2026
Added
New developer tutorial on YouTube
December 22nd, 2025
Improved
API reference table of contents improvements
December 12th, 2025
Added
New v3 API endpoints for charging customers
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