Vaquill AI
Vaquill AI is US primary law data infrastructure: a credit-metered Legal Data API over the US Code, the CFR, every state and territory statutory code, regulations, constitutions, court rules, session laws, agency guidance and executive orders (5M+ sections, 54 jurisdictions), a sibling India API over central and state legislation, a Legal Workspace API for driving matters, documents, drafting, review and compliance checks from your own backend, and a hosted MCP server (OAuth or API key) with a local uvx package and a Claude Code plugin. Three OpenAPI 3.1 documents are published on api.vaquill.ai, and the Open US Law corpus is released on GitHub under CC BY-NC 4.0.
Vaquill AI publishes 26 API contracts indexed on the APIs.io network, including Board Watches API, Chronology API, Clients API, and 23 more. Tagged areas include Legal, Statutes, Regulations, Legal Research, and Law.
The Vaquill AI catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.
Vaquill AI’s developer surface includes changelog, sandbox, authentication, documentation, API reference, getting-started guide, pricing, and 43 more developer resources.
Kin Score
APIs 26
Individual APIs this provider publishes, each with its own machine-readable definition.
Vaquill AI Board Watches API
Law-change alerts. Subscribe to a **board** (a tracked corpus source, identified by `corpusType` plus an optional `state`) and get a webhook or email whenever it refreshes with ...
Vaquill AI Chronology API
The dated events across a matter's documents, as one timeline, with duplicate and date-conflict flags.
Vaquill AI Clients API
The people and companies matters are filed under. Synchronous CRUD.
Vaquill AI Comparisons API
Diffing two documents in a matter into structural changes, with a substantive-versus-cosmetic judgment and a downloadable redline.
Vaquill AI Compliance API
Checking one document against one regulation's requirement checklist: a verdict per requirement with the article it comes from, the gaps, and what to do about them. Only regulat...
Vaquill AI Credits API
Your own credit balance: what is spendable right now, where it came from, and what is about to expire. Free and never charged, so it is safe to poll for low-balance alerting or ...
Vaquill AI Documents API
Files in a matter: their metadata, their ingested text, and the original bytes. A document is only usable by retrieval, drafting and review once its status is `succeeded`.
Vaquill AI Drafting API
Generating, revising and exporting draft documents. Bodies come out as sections and go in as markdown; the editor's own format is never on the wire. Rendered files come from the...
Vaquill AI Facts API
The cross-document fact ledger for a matter: what every document in it asserts, coalesced and cited back to its source passages.
Vaquill AI Folders API
Organization inside and across matters. The same folders the web app shows, so one created here appears in the customer's browser.
Vaquill AI India Credits API
The India Credits API from Vaquill AI — 1 operation(s) for india credits.
Vaquill AI India Pricing API
The India Pricing API from Vaquill AI — 1 operation(s) for india pricing.
Vaquill AI Indian Acts and Legislation API
The Indian Acts and Legislation API from Vaquill AI — 17 operation(s) for indian acts and legislation.
Vaquill AI Matrices API
Spreadsheet-style extraction across many documents: rows are documents, columns are questions, cells are answers with verified citations. Building a grid is free; running it is ...
Vaquill AI Matter summary API
A citation-backed summary of everything filed to a matter, generated on demand and readable claim by claim.
Vaquill AI Matters API
The unit of work everything else hangs off. A matter scopes documents, drafts, reviews, comparisons and matrices, and it is what a credential's access is checked against.
Vaquill AI NDA triage API
Screening one inbound NDA against ten standard criteria and, where you name one, your own NDA playbook. Answers `green`, `yellow` or `red` with the reasoning per criterion, plus...
Vaquill AI Operations API
The one job envelope. Every long-running call answers `202` with an operation, and polling this resource is the only way to learn it finished: there are no webhooks. Five status...
Vaquill AI Playbooks API
The organization's negotiating positions, per contract type, and the starter templates to build them from. A playbook is the input a contract review is measured against.
Vaquill AI Pricing API
Credit pricing and conversion rates. No authentication required. 1 credit = $0.01 USD.
Vaquill AI Research API
Asking legal questions and getting grounded, cited answers. This API does NOT stream: an ask answers `202` and you poll the operation, then read the answer off the message it po...
Vaquill AI Reviews API
Reviewing one contract against a playbook: clause analysis, redlines, flags, liability exposure and a reported sign-off gate. Export applies the redlines as native Word tracked ...
Vaquill AI Uploads API
Getting files in. One presigned multipart flow at every size, with the bytes going straight to storage and never through this API. Initiate, PUT each part, then complete.
Vaquill AI US Session Laws API
State session laws: the acts of each legislature as they were enacted, chapter by chapter, before they are folded into a code. A session law is what the governor signs. It carri...
Vaquill AI US Statutes API
Search and retrieve US primary law. Covers the United States Code and the Statutes at Large, the Code of Federal Regulations and its annual editions, state statutory codes and a...
Vaquill AI Workflows API
Multi-step analyses from a fixed catalogue. Read a definition to learn what documents and inputs it takes, launch a run inside a matter, then download the artifacts it produces.
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MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
Vaquill MCP Server
Hosted and local MCP server over the Vaquill Developer API (US primary law: statutes, regulations, constitutions, court rules, session laws, agency guidance, plus law-change wat...
MCP SERVERPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 2
Documented rate limits and quota policies.
Vaquill Ai Rate Limits
RATE LIMITSVaquill Ai Workspace Rate Limits
RATE LIMITSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Vaquill Ai Webhooks
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Vaquill Ai Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Vaquill AI API Rules
SPECTRALOpenAPI Overlays 3
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Vaquill Ai India Overlay
GENERATEDVaquill Ai Openapi Overlay
GENERATEDVaquill Ai Workspace Overlay
GENERATEDJSON Schema 18
Standalone JSON Schema definitions for this provider's data models.
ActCitedByResponse
JSON SCHEMAActSearchRequest
JSON SCHEMAActStatusResponse
JSON SCHEMAActSubordinateResponse
JSON SCHEMAActTextResponse
JSON SCHEMAAskRequest
JSON SCHEMAComplianceCheck
JSON SCHEMACreateWatchRequest
JSON SCHEMAExternalCreditBalanceResponse
JSON SCHEMAMatter
JSON SCHEMANdaTriage
JSON SCHEMAReviewCreateRequest
JSON SCHEMAReview
JSON SCHEMASessionLawBodyResponse
JSON SCHEMASessionLawResponse
JSON SCHEMAStatuteBodyResponse
JSON SCHEMAStatuteCountRequest
JSON SCHEMAStatuteSearchRequest
JSON SCHEMAScroll for all 18
Security Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 6
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 6
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 11
Pagination, idempotency, versioning, errors, and events
Scroll for all 11
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 6
Authentication, authorization, and security posture
Operate 6
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 3
Properties that don't map to a standard resource type
Source (apis.yml)
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.