Unum
company · United StatesScores
1 product on the map — 1 open.
Openness
5 high confidence- license
- Apache-2.0(OSI)
- source
- public
- core features withheld
- no
Apache-2.0 license body confirmed. The repository is public and unarchived and builds the whole product, and the README describes no paid tier, enterprise edition or license-gated build beside it, so source is public and the core ungated.
- https://pypi.org/pypi/usearch/json recorded 2026-09-30
PyPI metadata for the usearch package gives license "Apache-2.0" and summary "Smaller & Faster Single-File Vector Search Engine from Unum".
- https://raw.githubusercontent.com/unum-cloud/USearch/main/LICENSE recorded 2026-09-30
LICENSE file is the Apache-2.0 text: "Apache License" is not needed here, the body carries "Version 2.0, January 2004" and "TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION".
- https://raw.githubusercontent.com/unum-cloud/USearch/main/README.md recorded 2026-09-30
README calls USearch a "Simple and extensible [single C++11 header][usearch-header] __library__" beside "Similarity Search & Clustering Engine"; searched the body for enterprise, paid, license key, commercial and proprietary: none.
Adoption
3 high confidenceUSearch's adoption reading comes directly from PyPI downloads of the package, since the library itself is the distributed artifact rather than a client for a separate service. That is a direct signal of use, though it counts only PyPI installs and not use through the other eleven language bindings.
- https://pypistats.org/api/packages/usearch/recent recorded 2026-08-18
last_month downloads = 458,244 for usearch
Capability
3 medium confidenceUSearch provides one index family, HNSW, with pluggable metrics and quantized vector types, embeddable across a dozen language bindings and four platform classes rather than any broader set of retrieval modes. That narrow focus is why it covers much less of the persist-index-retrieve path than Vespa's distributed, cluster-capable platform.
- https://raw.githubusercontent.com/unum-cloud/USearch/main/README.md recorded 2026-09-30
README header lists bindings and platforms: "Linux • macOS • Windows • iOS • Android • WebAssembly •" beside SQLite, and eleven language links from C++11 to Wolfram.
- https://raw.githubusercontent.com/unum-cloud/USearch/main/README.md recorded 2026-09-30
README lists "View large indexes from disk" and "Space-efficient point-clouds with `uint40_t`, accommodating 4B+ size." among its features.
- https://raw.githubusercontent.com/unum-cloud/USearch/main/README.md recorded 2026-09-30
README describes multi-index lookups: "you can build multiple smaller ones and view them together."