Manuscripts & Autographs Index (MSAI): a daily market-performance index for the manuscripts and autographs market, built on ALT/FNDATA's dataset of over 38,000 lots since 2001, with 24,000+ realised prices. Daily index values for benchmarking and research.
Manuscripts & Autographs Index (MSAI): rare books and manuscripts market data
The Manuscripts & Autographs Index (MSAI) delivers daily index values tracking the manuscripts and autographs market on a consistent methodology, for benchmarking, valuation and research.
The index is built on ALT/FNDATA's rare books and manuscripts sales data (over 38,000 Manuscripts & Autographs lots since 2001, with 24,000+ realised prices). Index values come in JSON, CSV and SQL formats and update daily.
What you can do with this data
Benchmarking: measure this segment against the wider collectibles market.
Portfolio and trend research: track performance over time on a consistent methodology.
Valuation and insurance: market-based values for appraisal, estate and cover.
Research and reporting: ground analysis in realised auction prices.
Dataset facts
Data formats: JSON, CSV, SQL tables
Geographic coverage: Global (North America, Europe, Asia)
ALT/FNDATA publishes a Rare Books & Manuscripts feed, a Rare Book & Manuscript Index and segment indices (Comic Books, Manuscripts & Autographs, Maps & Atlases) on AWS Data Exchange. Search "ALT/FNDATA" to see the full catalogue.
Getting started
For help evaluating this dataset for your use case, or to discuss coverage and integration, contact the ALT/FNDATA data team at info@altfndata.com.
Highlights
Daily market-performance index for the manuscripts and autographs market, built on 38,000+ lots since 2001, with 24,000+ realised prices.
Grounded in realised auction and marketplace prices. Delivered in JSON, CSV and SQL formats.
Part of a family of ALT/FNDATA rare books and manuscripts indices on AWS Data Exchange. Daily-updated index values.
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
This listing offers one pricing dimension: Product Access (Units). It grants subscribers access to the Manuscripts & Autographs Index (MSAI) Data at no cost. There are no tiers, seat counts, or usage-based add-ons to compare. You get access through this single unit-based dimension. Access covers the underlying auction and private-sale dataset for this asset class. Because the model is free, your cost does not scale with usage, seats, or query volume under this dimension.
Top-of-mind questions for buyers
What does the Product Access (Units) dimension actually grant me?
It grants access to the Manuscripts & Autographs Index (MSAI) dataset. This covers auction and private-sale transaction records for this asset class. You reach the underlying normalized data records that ALT/FNDATA publishes across its luxury asset coverage. Access is unit-based and provided at no charge under this dimension.
Since this is free, does my cost change as I query more data or add users?
No. This dimension carries no charge, so your cost stays at zero regardless of query volume, record count, or the number of people using it. There are no included-amount cutoffs or overage points to trigger a cost change under this single free dimension.
How is the data delivered and how current are the records?
The data comes from ALT/FNDATA's normalized auction and private-sale records, accessible through their API using SQL and JSON. The dataset is refreshed continuously as new auction and private-sale results arrive, so records update over time rather than at fixed intervals.
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