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.
Reference-quality API operations across every facet — a rich contract, published governance, transparent operations, and machine-readable commercial terms.
API Evangelist profiles Vaquill AI the way a machine reads it — 57 machine-readable artifacts across 6 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Vaquill AI scores 71.6/100 (exemplar), with a separate agent-readiness read of 65/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-10-17 · rubric v0.24.0
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How we profile Vaquill AI
Each block below is one kind of artifact we hold for Vaquill AI. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 26
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
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.
Scroll within the panel for all 26 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
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
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 2
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Vaquill Ai Rate Limits
RATE LIMITSVaquill Ai Workspace Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Vaquill Ai Webhooks
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Vaquill Ai Context
JSON-LDSpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Vaquill AI API Rules
SPECTRALJSON Schema 18
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
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 within the panel for all 18 ·
Security Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Vaquill AI — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
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 within the panel 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
← All providers · Data indexed from github.com/api-evangelist/vaquill-ai · machine-readable index on apis.io
This is an independent, third-party profile of Vaquill AI, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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