Vaquill AI Primary Law
ChatGPT pluginSearch and cite US law
Vaquill AI is a legal research tool for United States law. Ask a legal question and ChatGPT finds the statutes and regulations that answer it, quotes their text, and cites each one with a link to the official government source. It can also check whether a citation is real, point to the exact provision it names, and compare how different states handle the same issue.
What it covers: the US Code, the Code of Federal Regulations, the statutory codes of all 50 states plus DC and Puerto Rico, state regulations, federal and state court rules and constitutions, federal agency guidance from 53 named sources, agency adjudications, the Statutes at Large and the Federal Register. That is more than 5.4 million sections, including repealed and historical provisions, each marked with its status.
What you can do: search all of it at once or narrow to one state or body of law; look up a citation such as 42 U.S.C. 1983; read a section in full, or as it stood on a past date; see which sections cite a provision, the terms it defines, and the matching rule in other states.
What it does not do: it does not hold court opinions, foreign law or live bill status, and it does not give legal advice. Status labels report what the official publisher records about repeal or replacement; where currency cannot be confirmed, the answer says unknown.
Vaquill AI Primary Law is #11,336 of 13,927 ChatGPT plugins by placement, up 881 places in a week.
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Rank by placement
Rank in Education & research
In its category
How this plugin compares with others in the same category. Positions are counted within the category, not across the whole directory.
Education & research848th of 1,036 by placement
| # | Plugin | Position | 7d |
|---|---|---|---|
| 846 | #11323 | — | |
| 847 | #11332 | — | |
| 848 | #11336 | 881places up | |
| 849 | #11347 | — | |
| 850 | #11350 | — |
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Example prompts
- “Which federal law lets someone sue a state official for violating their constitutional rights? Quote the statute.”
- “Compare the statute of limitations for breach of a written contract in California, New York and Florida.”
- “Are these citations real? 42 U.S.C. § 1983, 15 U.S.C. § 1681b, 18 U.S.C. § 9999”
Skills
adjudications
Search federal administrative adjudications, with the overruling caveat stated up front. Subject: <topic or citation> [body].
as-of
Read a statute section as it stood on a given date, with the observation caveat stated honestly. Subject: <citation or act_id> <YYYY-MM-DD>.
authority
Trace the chain between a statute and the regulations that implement it, in either direction. Subject: <citation or act_id>.
changed
Sweep a corpus or jurisdiction for what has changed since a date. Subject: <YYYY-MM-DD> [corpus and/or state].
compare-states
Compare how different states word the same rule, starting from one provision or a topic. Subject: <citation or act_id, or a topic and a list of states>.
coverage
Report what Vaquill AI actually holds for a jurisdiction, before you read an empty result as an absence of law. Subject: [state, or 'federal', or leave blank for everything].
guidance
Find federal agency guidance on a topic, and say clearly what weight it does and does not carry. Subject: <topic> [agency or source].
research
Find the controlling US law on a question and answer only from the text the tools return. Subject: <question> [in <state>].
rulemaking
Track a Federal Register rulemaking: what an agency proposed, what became final, and when comments close. Subject: <topic or agency> [proposed|final] [since YYYY-MM-DD].
us-statute-research
Research US primary law with the Vaquill AI tools - find a controlling section, resolve a citation to an exact provision, read a section as it stood on a past date, scope a search to the right corpus, and report currency honestly. Use whenever a question turns on what a US statute, regulation, court rule, constitution or agency guidance document actually says, or when a citation needs verifying against the official text.
verify-citations
Verify every legal citation in a file, selection, or pasted text against the official source text. Subject: [file path, or paste the text].
- Categories
- Made by
- Vaquill AI · Website
- Sign-in
- On Install
- Availability
- Available
- Version
- 1.0.4
- Created
- November 2, 2026
- More info
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