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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v3
Guides
API Reference
Release Notes
Postman Collection
Video Tutorials
November 5th, 2025
Added
New v3 API endpoint for deleting attachments
November 5th, 2025
Improved
Organizations API improvements
November 5th, 2025
Added
New v3 API endpoints for bill approvals
November 5th, 2025
Added
New v3 API endpoint for updating the BILL price plan for an organization
October 23rd, 2025
Improved
BILL widgets release 2025-10-23
September 29th, 2025
Added
Webhooks in the BILL v3 API Postman collection
September 12th, 2025
Improved
BILL widgets release 2025-09-12
September 12th, 2025
Added
BILL 3D Secure capabilities for Spend & Expense transactions
August 29th, 2025
Added
The BILL v3 API Postman collection is live
August 29th, 2025
Improved
Record AP payment API improvements
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