BFLDS with FOLIO Middleware

SOL #: 2026-LGD-0076JustificationSole Source

Overview

Buyer

Library Of Congress
Library Of Congress
CONTRACTS SERVICES
Washington, DC, 20540, United States

Place of Performance

Washington, DC

NAICS

Custom Computer Programming Services (541511)

PSC

Support Services For Activities Involved With Application Development And Support To Include Analysis, Design, Development, Coding, Testing, And Release Packaging, As Well As Support Of Off The Shelf Business Applications. (DA01)

Set Aside

No set aside specified

Timeline

1
Posted
Apr 14, 2026

Qualification Details

Fit reasons
  • NAICS alignment with historical contract wins in similar service areas.
  • Scope strongly matches core technical capabilities and delivery model.
Risks
  • Past performance thresholds may require one additional teaming partner.
  • Potential clarification needed on staffing minimums before bid/no-bid.
Next steps

Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.

Quick Summary

The Library of Congress has posted a Justification for Other Than Full and Open Competition (J&A) as a pre-solicitation notice for BFLDS with FOLIO Middleware development. This action anticipates a sole-source award to IndexData LLC to develop critical middleware for data exchange between the Library's BIBFRAME Linked Data System (BFLDS) and the FOLIO open-source library services platform. The anticipated period of performance is from May 11, 2026, to November 10, 2026.

Scope of Work

The contractor will develop baseline middleware to facilitate data exchange for cataloger-triggered events. This includes:

  • Harvesting data from FOLIO and BFLDS.
  • Transforming data to different formats.
  • Pushing data to other applications or FOLIO.
  • Harvesting data from non-FOLIO applications and pushing it to FOLIO.
  • Supporting LC-supplied or LC-approved XSLT-based transformations (e.g., BIBFRAME to MARC/MARCXML and vice versa).
  • Ensuring pipelines are explicitly configured, versioned, and reusable.
  • Exposing a REST-API and Command Line Interface (CLI) for control and visibility. The focus is on successful data exchange and traceability, rather than speed or throughput, and specifically excludes bulk data remediation or transfer.

Contract & Timeline

  • Opportunity Type: Justification for Other Than Full and Open Competition (Pre-solicitation Notice)
  • Anticipated Awardee: IndexData LLC
  • Product/Service Code: DA01 - Application Development and Support Services
  • Period of Performance: May 11, 2026 - November 10, 2026
  • Estimated Value: Up to $350,000 (simplified acquisition), with Contracting Officer approval up to $900,000.
  • Published Date: April 14, 2026

Evaluation & Rationale

This J&A supports a sole-source award due to IndexData LLC's unique qualifications. IndexData played a direct role in the design and development of both FOLIO and BFLDS, possessing unique institutional and technical knowledge essential for this project. Awarding to another contractor would lead to significant duplication of effort, increased costs, and schedule delays. Price will be determined fair and reasonable through comparison to historical prices, Independent Government Cost Estimates (IGCE), and prior contract pricing.

Contact Information

  • Primary Contact: Veronica Price, vprice@loc.gov, (202) 374-3046
  • Secondary Contact: Quinn C. Cartheuser, qcart@loc.gov, (202) 707-2339

People

Points of Contact

Veronica PricePRIMARY
Quinn C. CartheuserSECONDARY

Files

Files

Download

Versions

Version 1Viewing
Justification
Posted: Apr 14, 2026
BFLDS with FOLIO Middleware | GovScope