Attachments Rewrite API
We are transforming our legacy SOAP/XML attachment process into a modern REST-based API called Document Processing—a redesigned solution that streamlines real-time exchange of supporting documentation between firms. This upgrade enables clients to reduce operational risk, enhance efficiency across their workflows, and offers:
- Simplified integration through a modern JSON-based design
- Enhanced transparency with clear status updates
- Compliance assurance with industry-leading security standards
Important Dates
- PSE Date: March 25, 2027
- Production Date: April 25, 2027
- Decommissioning Legacy Environment: November 18, 2027
I&RS Attachments IAT Data Dictionary
Modified August 12, 2026
I&RS Attachments Response Schema
November 20, 2025
I&RS Attachments Request Schema
November 20, 2025
I&RS Attachments Request Sample
November 20, 2025
I&RS Attachments Response Sample
November 20, 2025
I&RS Attachments Open API
Modified August 12, 2026
I&RS Attachments API Implementation Guide
November 20, 2025
Current Enhancements Release
Enhancement release resources will be published as they are developed and made available. Please check back regularly for the latest supporting materials.
Implemented Releases
I&RS 2024 Enhancements
July 10, 2024
I&RS 2023 Enhancements
December 28, 2023
I&RS 2022 Enhancements
February 24, 2023
I&RS 2021 Enhancements
December 30, 2022
I&RS 2025 Enhancements
November 24, 2025
I&RS 2026 Enhancements
July 15, 2026
Working Group Minutes
I&RS 2021 Minutes
December 30, 2022
I&RS 2022 Minutes
December 30, 2022
I&RS 2023 Minutes
December 27, 2023
I&RS 2024 Minutes
December 02, 2024
I&RS 2025 Minutes
January 21, 2026
I&RS August 2026 Meeting Minutes
Modified August 07, 2026
I&RS 2026 Minutes
Modified August 07, 2026