Vaquill MCP Server
Search US and Indian statutes, regulations, constitutions, and court rules. Its 27 documented tools cover section, watch, statute, act. It is available as a remote MCP endpoint.
Teams that work with section, watch and statute and want a hosted endpoint instead of running a local process. The project is written in Python.
VERIFIED ACTIVE
LAST COMMIT 2026-09-14 · ★ 7 · #217 OF 278 MAINTAINED API INTEGRATION · VERIFIED 2026-09-18
MIT · Python servers · how we verify → /methodology
01 · Install Vaquill
before you install - you'll need
VAQUILL_API_KEY
Environment variables documented in the project's README - it lists which are required and which have defaults.
Claude Code
claude mcp add vaquill-ai-vaquill-mcp --transport http https://mcp.vaquill.ai/s/_Claude Desktop / Cursor / VS Code - add to config
{
"mcpServers": {
"vaquill-ai-vaquill-mcp": {
"url": "https://mcp.vaquill.ai/s/_"
}
}
}Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.
Using another client? Same JSON, different key
Claude Desktop · mcpServers
Cursor · mcpServers
VS Code · servers
Windsurf · mcpServers
Zed · context_servers
Cline · mcpServers
Roo Code · mcpServers
Continue · mcpServers
LibreChat · mcpServers
Gemini CLI · mcpServers
Codex CLI · mcp_servers
Full setup guides: every client.
02 · Evidence
https://mcp.vaquill.ai/s/_
transport: streamable-http
endpoint alive - responded to MCP initialize · probed 2026-09-17
Security posture
What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.
runs as remote - your agent's requests go to mcp.vaquill.ai
endpoint auth accepted our unauthenticated MCP initialize - no credentials needed to connect
license MIT - declared in the repository
registry namespace io.github.Vaquill-AI is GitHub-verified and matches the repo owner
03 · What Vaquill can do
Prose above is summarized from the project's README and registry record - no invented capabilities.
What you can build
With this server connected, an agent can resolve a Bluebook citation (e.g. 42 U.S.C. § 1983) straight to its section, browse the statutory hierarchy one level at a time, send a synthetic delivery to verify signing, auth and reachability, and browse and filter enactments by jurisdiction, regulator, year, status.
Capability map
Tools grouped from the project's README - what Vaquill lets an agent do.
read & search
6 tools - e.g. Metadata for up to 50 sections in one call.; The watchable sources (Federal Register, CFR, a state's statutes, ...).; Live API credit pricing (free, no auth).
get_sections_batch · list_boards · get_pricing · search · fetch · get_corresponding_provisions
Section
5 tools - e.g. The sections immediately before and after, in statutory order.; The defined terms that govern a section, from its chapter's definitions section.; Which USC/CFR sections cross-reference this one (the…
get_section_neighbors · get_section_definitions · get_section_cited_by · get_section_cross_state · get_section_changes
Watch
5 tools - e.g. Subscribe to a board via webhook (HMAC-SHA256 signed) or email.; Send a synthetic delivery to verify signing, auth and reachability.; What changed on a watched source. Metadata only, and safe to poll.
create_watch · test_watch · list_watch_changes · get_watch_change_diff · list_watch_deliveries
Statute
4 tools - e.g. Section metadata by actId (citation, hierarchy, official-source links).; Full HTML + plain text of a section.; Resolve a Bluebook citation (e.g. 42 U.S.C. § 1983) straight to its section.
get_us_statute_section · get_us_statute_section_text · resolve_statute_citation · list_statute_divisions
Act
3 tools - e.g. The filter vocabulary the corpus actually holds, with counts.; Source links (text, PDF, HTML) for one enactment.; Amendment history: what changed, by which Act, effective when.
list_act_filters · get_act_text · get_act_amendments
Statutes
2 tools - e.g. Hybrid semantic + keyword search; filter by corpusType, state, titleNumber, chapter, year, and more.; Self-describing coverage matrix: which corpora exist in which jurisdiction.
search_us_statutes · list_statutes_coverage
Acts
2 tools - e.g. Search Indian legislation down to the section.; Browse and filter enactments by jurisdiction, regulator, year, status.
search_acts · list_acts
Latest releases
v0.4.0 · 2026-09-02
Upgrade note · This release requires fastmcp >= 4.0.1, < 5 and uses httpx2 in place of httpx. · 0.3.0 declared fastmcp>=3.0.0 with no upper bound, so a fresh install already · resolved to fastmcp 4, which removed…
v0.3.0 · 2026-08-28
Hosted MCP server now publishes all 28 tools and can reach the 50-state corpus. · Fixed · The hosted server at mcp.vaquill.ai declared 9 tools against 28 in the shared description catalogue. Law Change Alerts (boards…
v0.2.0 · 2026-08-08
v0.2.0 · Cleaner tool names: MCP tool names are now auto-derived from the API's OpenAPI operation ids, replacing the verbose ..._api_v1_..._get names (e.g. list_statutes_coverage). New or renamed API endpoints get…
04 · Who maintains Vaquill
Vaquill is maintained by vaquill-ai. We track 3 MCP servers from vaquill-ai - 3 actively maintained, 15 combined GitHub stars, oldest repo from Mar 2026. Full record: all servers from vaquill-ai.
05 · Facts
- repository
- github.com/vaquill-ai/vaquill-mcp
- category
- API integration - ranked #217 of 278 actively-maintained API integration servers as of 2026-09-18.
- release cadence
- 4 releases in the last 90 days (latest 2026-09-02)
- registry
- io.github.Vaquill-AI/vaquill-mcp (active, first published 2026-05-15 · 5 versions)
06 · Vaquill FAQ
Is Vaquill still maintained?
Yes - as of 2026-09-18, its last commit was 2026-09-14 and it shipped 4 releases in the last 90 days. We re-verify nightly.
What can Vaquill do?
With this server connected, an agent can resolve a Bluebook citation (e.g. 42 U.S.C. § 1983) straight to its section, browse the statutory hierarchy one level at a time, send a synthetic delivery to verify signing, auth and reachability, and browse and filter enactments by jurisdiction, regulator, year, status.
How do I install Vaquill?
Run `claude mcp add vaquill-ai-vaquill-mcp --transport http https://mcp.vaquill.ai/s/_`. The README documents one environment variable (VAQUILL_API_KEY) to set first. You can also paste the ready-made client config above.
Does Vaquill require authentication?
No - the endpoint accepted our unauthenticated MCP initialize when probed on 2026-09-17; you can connect without credentials.
07 · Alternatives to Vaquill
Alternatives to Vaquill
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