# Vaquill AI **Canonical:** https://apis.io/providers/vaquill-ai/ **Website:** https://www.vaquill.ai **APIs profiled:** 6 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. ## Kin Score — 70.8 / 100 (exemplar) Scored 2026-10-09 under rubric 0.23.0. | Facet | Score | |---|---| | Discoverability | 70.0 | | Contract Quality | 72.3 | | Contract Governance | 22.0 | | Operational Transparency | 68.4 | | Developer Ergonomics | 73.2 | | Access Clarity | 73.7 | Regulatory layer — **Government & Public Sector**: 45.1 (matched via tags). ## Agent readiness — 60.8 (agent-native) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | no | | MCP Server | documented | | Auth Clarity | served | | Idempotency | verified | | Error Semantics | verified | | OpenAPI Examples | verified | | Rate Limit Signal | verified | | Event Surface Described | yes | | Agent Skills | derived | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | | Delegated Identity | served | | Protected Resource Metadata | no | | Dynamic Client Registration | yes | | Agentic Commerce | no | ## APIs (26) - **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. ## MCP servers (1) - **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... ## Agentic access (1) - **Vaquill Ai Agentic Access** — 185 operations · 82 acting ## Security (4) - **Vaquill Ai Authentication** — apiKey/http/oauth2 · 5 schemes - **Vaquill Ai Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC - **Vaquill Ai Vulnerability Disclosure** — contact published - **Vaquill Ai Trust Center** — trust center published ## Plans (1) - **Vaquill Ai Plans Pricing** ## Tags Legal, Statutes, Regulations, Legal Research, Law, Compliance, Legal Technology, Government Data, MCP, India, Contracts --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/vaquill-ai/). Scores are computed from the provider's own public artifacts under a published rubric.