Third-Party Acknowledgments

This project incorporates the following open-source resources. We're grateful to their authors and maintainers.

Knowledge Resources

Open English Wordnet 2025

• Creator: The Open English Wordnet Team (2019–present)
• License: Creative Commons Attribution 4.0 International (CC BY 4.0)
• Source: https://en-word.net
• License text: https://creativecommons.org/licenses/by/4.0/
• Modifications: none
• Local copy: substrate-state/dictionaries/wordnet/ (license: LICENSE.txt)

Princeton WordNet 3.0

• Creator: Princeton University (Copyright 2006)
• License: WordNet License (permissive, BSD-style)
• Source: https://wordnet.princeton.edu
• Modifications: none
• Local copy: substrate-state/dictionaries/wordnet/ (license: LICENSE.txt)

Wikipedia

• Creator: Wikipedia contributors
• License: Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
• Source: https://en.wikipedia.org
• License text: https://creativecommons.org/licenses/by-sa/4.0/
• Modifications: excerpts may be truncated; otherwise unmodified. Source attribution preserved per CC BY-SA 4.0 Section 3(a).

Models

BAAI BGE-base-en-v1.5

• Creator: Beijing Academy of Artificial Intelligence (BAAI)
• License: MIT License
• Source: https://huggingface.co/BAAI/bge-base-en-v1.5

Python Libraries

PyTorch

• License: BSD-3-Clause
• Source: https://pytorch.org

Hugging Face Transformers

• License: Apache License 2.0
• Source: https://github.com/huggingface/transformers

sentence-transformers

• License: Apache License 2.0
• Source: https://github.com/UKPLab/sentence-transformers

NLTK

• License: Apache License 2.0
• Source: https://www.nltk.org

scikit-learn

• License: BSD-3-Clause
• Source: https://scikit-learn.org

NumPy

• License: BSD-3-Clause
• Source: https://numpy.org

SciPy

• License: BSD-3-Clause
• Source: https://scipy.org

JavaScript / Frontend

marked

• Creator: Christopher Jeffrey and contributors (2011–present)
• License: MIT License
• Source: https://github.com/markedjs/marked
• Local copy: Public/marked.min.js (v11.1.1, original license header preserved)

Rust Crates

Direct dependencies

• anyhow — Apache-2.0 OR MIT — https://github.com/dtolnay/anyhow
• arc-swap — Apache-2.0 OR MIT — https://github.com/vorner/arc-swap
• async-trait — Apache-2.0 OR MIT — https://github.com/dtolnay/async-trait
• axum — MIT — https://github.com/tokio-rs/axum
• base64 — Apache-2.0 OR MIT — https://github.com/marshallpierce/rust-base64
• candle-core — Apache-2.0 OR MIT — https://github.com/huggingface/candle
• candle-nn — Apache-2.0 OR MIT — https://github.com/huggingface/candle
• candle-transformers — Apache-2.0 OR MIT — https://github.com/huggingface/candle
• chrono — Apache-2.0 OR MIT — https://github.com/chronotope/chrono
• futures — Apache-2.0 OR MIT — https://github.com/rust-lang/futures-rs
• hmac — Apache-2.0 OR MIT — https://github.com/RustCrypto/MACs
• nalgebra — Apache-2.0 — https://github.com/dimforge/nalgebra
• num-complex — Apache-2.0 OR MIT — https://github.com/rust-num/num-complex
• pulldown-cmark — MIT — https://github.com/raphlinus/pulldown-cmark
• regex — Apache-2.0 OR MIT — https://github.com/rust-lang/regex
• reqwest — Apache-2.0 OR MIT — https://github.com/seanmonstar/reqwest
• serde — Apache-2.0 OR MIT — https://github.com/serde-rs/serde
• serde_json — Apache-2.0 OR MIT — https://github.com/serde-rs/json
• sha2 — Apache-2.0 OR MIT — https://github.com/RustCrypto/hashes
• thiserror — Apache-2.0 OR MIT — https://github.com/dtolnay/thiserror
• tokenizers — Apache-2.0 — https://github.com/huggingface/tokenizers
• tokio — MIT — https://github.com/tokio-rs/tokio
• tokio-stream — MIT — https://github.com/tokio-rs/tokio
• tower — MIT — https://github.com/tower-rs/tower
• tower-http — MIT — https://github.com/tower-rs/tower-http
• tracing — MIT — https://github.com/tokio-rs/tracing
• tracing-subscriber — MIT — https://github.com/tokio-rs/tracing
• urlencoding — MIT — https://github.com/kornelski/rust_urlencoding

Development-only

• http-body-util — MIT — https://github.com/hyperium/http-body
• tempfile — Apache-2.0 OR MIT — https://github.com/Stebalien/tempfile

Notable transitive dependencies

• http — Apache-2.0 OR MIT — https://github.com/hyperium/http
• hyper — MIT — https://github.com/hyperium/hyper
• mime — Apache-2.0 OR MIT — https://github.com/hyperium/mime
• ring — ISC + permissive sub-licenses — https://github.com/briansmith/ring
• rustls — Apache-2.0 OR ISC OR MIT — https://github.com/rustls/rustls
• safetensors — Apache-2.0 — https://github.com/huggingface/safetensors
• tower-service — MIT — https://github.com/tower-rs/tower
• url — Apache-2.0 OR MIT — https://github.com/servo/rust-url

The full transitive graph is enumerated in Cargo.lock. All third-party Rust crates pulled in by this project use MIT, Apache-2.0, BSD-3-Clause, ISC, or compatible permissive licenses.

Where to display this notice

This project is deployable as a user-facing service. The contents of this file are made accessible to end users via:

• Web: footer link to /acknowledgments
• API: Link: </acknowledgments>; rel="acknowledgments" HTTP header, plus the public /acknowledgments endpoint
• CLI: --licenses or --acknowledgments flag prints this content

License compatibility summary