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Sources

Being public doesn't make something free to copy. Each source's terms are read before anything is taken, and "unknown" means not allowed. These are our reading of published terms, not legal advice.

Open Food Facts

Reviewed

Open Food Facts association and contributors

Licence: ODbL-1.0 · Terms · read 30 Oct 2026

Held from it: about 4,548,075 packaged products, in a separate collection

Query
Allowed
Store in bulk
Allowed
Transform
Allowed
Redistribute
Allowed
Commercial use
Allowed
Commercial AI use
Unknown: accepted by the owner

Attribution: Contains data from Open Food Facts, available under the Open Database License: on every page and in every answer, with links. Contents are under DbCL; product images under CC BY-SA and are not kept here. Share-alike: an adapted copy used publicly must be offered under ODbL, so this collection stays exportable as a whole (mix silos.off.export).

Approved by the owner for a separate collection only: never merged with the canonical foods or recipes, no shared categories, not in canonical search or Ask, not embedded, so ODbL's share-alike stays with this collection. Community data, not guaranteed accurate, not an allergen authority.

The owner's decision, 2026-10-30: The owner's instruction: ingest Open Food Facts, in a separate collection, with the ODbL duty kept. Agents may look products up with the attribution.

Project Gutenberg

Reviewed

Project Gutenberg

Licence: Public domain in the USA · Terms · read 30 Oct 2026

Held from it: 59,125 recipes

Query
Allowed
Store in bulk
Allowed
Transform
Allowed
Redistribute
Allowed
Commercial use
Allowed
Commercial AI use
Allowed

Attribution: None required for public-domain text. We credit each book's title, author and year, and Project Gutenberg as the source with its eBook number, which their permission page allows even commercially. The name is a registered trademark: credit it as a source, don't use it to sell anything.

https://www.gutenberg.org/policy/permission.html: public-domain items may be used as you please in the USA, commercially and for derivative works: "nobody can grant, or withhold, permission". Only books whose own catalog entry reads "Public domain in the USA." are taken; copyrighted ones are skipped. COUNTRY LIMIT: this covers the USA only. "Not all items that are public domain in the US are public domain in other countries", and they advise people outside the US to get professional guidance. Serving these recipes outside the USA is a question for the owner's counsel, sharpest for 20th-century booklets and authors who died after about 1955. The 20th-century brand booklets dated 1931 or later (Betty Crocker and the like, about 1,600 recipes from 33 books: public domain in the USA by the catalog, with brand names in their titles) are shown by the owner's decision of 2026-10-30, over advice to hold them. Printed before 1800 stays held. Agents read and rewrite (owner's rule). No images from the books are kept.

USDA FoodData Central

Reviewed

U.S. Department of Agriculture, Agricultural Research Service

Licence: CC0-1.0 · Terms · read 30 Oct 2026

Held from it: 8,217 foods · 666,233 nutrient values

Query
Allowed
Store in bulk
Allowed
Transform
Allowed
Redistribute
Allowed
Commercial use
Allowed
Commercial AI use
Allowed

Attribution: None required (public domain). USDA requests that users list FoodData Central as the source and, when possible, tell them about the product using it.

The API guide says: public domain, not copyrighted, published under CC0 1.0, no permission needed; listing FoodData Central as the source is requested. Values are US reference data for generic foods, not any particular product or person. Asked courtesy still open: telling USDA about the product.

Wikibooks Cookbook

Reviewed

Wikimedia Foundation and Wikibooks contributors

Licence: CC-BY-SA-4.0 · Terms · read 30 Oct 2026

Held from it: 3,796 recipes

Query
Allowed
Store in bulk
Allowed
Transform
Allowed
Redistribute
Allowed
Commercial use
Allowed
Commercial AI use
Allowed

Attribution: Per recipe: title, link to the page and its history (authors), revision, licence, and what was changed. Share-alike: our adaptation of a recipe stays CC BY-SA 4.0.

CC BY-SA 4.0 allows commercial use, storing, adapting and redistributing with attribution and share-alike. Agents read it and write their own version, keeping the credit and the share-alike notice, because a rewrite is still an adaptation; they don't quote it. Using it to train a model is not asserted. Whether an AI answer built on a recipe is itself share-alike is an open question for the owner's counsel.

Wikidata

Reviewed

Wikimedia Foundation and Wikidata contributors

Licence: CC0-1.0 · Terms · read 30 Oct 2026

Held from it: 2,781 foods

Query
Allowed
Store in bulk
Allowed
Transform
Allowed
Redistribute
Allowed
Commercial use
Allowed
Commercial AI use
Allowed

Attribution: None required for structured data (CC0). We name it anyway. Images on Commons are licensed separately and are not copied.

Structured data in the main namespace is CC0. Community-edited: class chains can wander, so anything reached through subclasses is recorded as less certain.

Internet Archive

Shown by the owner's decision

Internet Archive

The terms below don't allow this use. Its recipes are shown by the owner's decision of 2026-10-30: Pre-launch external testing, awaiting written permission from archive.org. Recipes from the 22 English books of the test batch that the extractor graded clean, shown with their book credit, safety flags and a historical note. Doubtful and rejected recipes stay out. The owner was told the terms say scholarship and research purposes only and carry an indemnity.

Licence: None stated · Terms · read 30 Oct 2026

Held from it: 4,874 recipes

Query
Not allowed
Store in bulk
Not allowed
Transform
Unknown
Redistribute
Not allowed
Commercial use
Not allowed
Commercial AI use
Not allowed

Attribution: Each recipe credits its book and the Internet Archive, and links the item.

Internet Archive Terms of Use, 31 Dec 2014, read by the owner: access is "granted for scholarship and research purposes only"; "no other access to or use of the Site, the Collections, or the Archive's services is authorized"; use is "limited to noninfringing or fair use"; the user indemnifies; California law. A book's public-domain status clears its copyright, not this contract, so commercial use and commercial AI use are recorded as not allowed. Shown anyway by the owner's recorded decision, below; nothing bulk until archive.org answers in writing.

For production: archive.org's written permission, for this display and for any bulk load.

TheMealDB

Under review, accepted by the owner

TheMealDB

Licence: None stated · Terms · read 30 Oct 2026

Held from it: 791 recipes

Query
Allowed
Store in bulk
Unknown: accepted by the owner
Transform
Allowed
Redistribute
Unknown
Commercial use
Unknown: accepted by the owner
Commercial AI use
Unknown: accepted by the owner

Attribution: Paid tier: custom artwork may be used but they must be mentioned as the source of the data. We name TheMealDB and link the recipe everywhere it appears.

Terms last updated 2025-07-01. They allow copying and modifying what the API returns, but they state no data licence and say nothing on keeping a permanent copy, redistribution or AI use, and recipes come from users with no stated rights chain. The owner accepted that risk on 2026-10-30, so it is ingested through the official API while those permissions stay unknown. On the public site and in REST a recipe stays a reference (title, link, attribution); agents read it only to rewrite it in their own words; no images are kept. Production needs a supporter key: the test key is for development or education.

The owner's decision, 2026-10-30: The owner's instruction: ingest TheMealDB, accepting that its terms leave storage, redistribution and AI use unaddressed. Agents rewrite, never copy; no images.

For production: A supporter key (MEALDB_API_KEY). The test key is for development or education only.

FAO AGRIS

Registered, not reviewed

FAO

Licence: None stated

Query
Unknown
Store in bulk
Unknown
Transform
Unknown
Redistribute
Unknown
Commercial use
Unknown
Commercial AI use
Unknown

Registered, not reviewed, not ingested. Research metadata. The prompts report the Open Dataset's metadata as CC BY 3.0 IGO; not yet verified here, and it would not extend to the full-text publications it describes.

Food and Agriculture Organization of the United Nations

Registered, not reviewed

FAO

Licence: None stated

Query
Unknown
Store in bulk
Unknown
Transform
Unknown
Redistribute
Unknown
Commercial use
Unknown
Commercial AI use
Unknown

Registered, not reviewed, not ingested. Traditional foods and food systems: eligible publications and datasets only, checked one by one.

Japan Ministry of Agriculture, Forestry and Fisheries

Registered, not reviewed

Government of Japan

Licence: None stated

Query
Unknown
Store in bulk
Unknown
Transform
Unknown
Redistribute
Unknown
Commercial use
Unknown
Commercial AI use
Unknown

Registered, not reviewed, not ingested. Japanese food culture and regional cuisine: identify specific collections and verify reuse conditions.

National agricultural research institutions

Registered, not reviewed

Various

Licence: None stated

Query
Unknown
Store in bulk
Unknown
Transform
Unknown
Redistribute
Unknown
Commercial use
Unknown
Commercial AI use
Unknown

Registered, not reviewed, not ingested. A placeholder for country-specific connectors; each institution needs its own review.

Public university repositories

Registered, not reviewed

Various

Licence: None stated

Query
Unknown
Store in bulk
Unknown
Transform
Unknown
Redistribute
Unknown
Commercial use
Unknown
Commercial AI use
Unknown

Registered, not reviewed, not ingested. Food science and history: repository and publication-level licences differ; each needs its own review.