Acquis — Verified EU Law for AI assistants
Acquis gives Claude, ChatGPT and any MCP-enabled assistant exact, verifiable
access to EU digital regulation. Instead of paraphrasing from training data,
your assistant quotes the verbatim provision of the current consolidation —
with the full citation (act, article, paragraph, point), its in-force status,
the consolidation date and a deep link to EUR-Lex, so you can check every claim
yourself.
The verbatim legal text is rendered from a signed corpus — it is not written
by the model. Every fragment is content-hashed and ed25519-signed at
ingestion, and any citation can be cryptographically verified.
This repository documents the public MCP endpoint. The hosted service, its
source code and its data products are proprietary and governed by the terms at
acquislaw.com — only the contents of this repository
are MIT-licensed (see LICENSE).
Corpus
The EU digital rulebook, all consolidated and updated by daily sweeps of the
official EUR-Lex/CELLAR catalog (new consolidations, corrigenda, status
changes):
| Act | CELEX |
|---|
| AI Act (applies from 2 August 2026 — Art. 113 staggers the rest) | 32024R1689 |
| GDPR | 32016R0679 |
| Digital Services Act (DSA) | 32022R2065 |
| Digital Markets Act (DMA) | 32022R1925 |
| NIS2 | 32022L2555 |
| Data Act | 32023R2854 |
| Cyber Resilience Act (CRA) | 32024R2847 |
| DORA | 32022R2554 |
| eIDAS 2 | 32024R1183 |
| Product Liability Directive | 32024L2853 |
| Data Governance Act | 32022R0868 |
EDPB guidelines are next. Need a corpus that isn't here? New corpora are a
matter of hours — ask at capy@acquislaw.com.
Five read-only tools:
| Tool | What |
|---|
search_eu_law | Semantic search over the corpus → ranked verbatim provisions with citations. |
get_provision | Exact lookup by legal anchor — act: "AI Act", article: "6", paragraph: "1", point: "a" (also annex, recital). |
get_act_status | An act's CELEX number(s), latest consolidation date, in-force info and coverage. |
list_versions | Every stored version of an article with validity windows ("what did it say before the amendment?"). |
verify_fragment | Recomputes the content hash and reports the ed25519 signing provenance of any returned citation. |
Install
Acquis is a remote server. Authentication is OAuth 2.1 (an account is
created in-flow, with a 7-day Pro trial, no card).
Claude (Desktop / claude.ai / Code)
Add a custom connector pointing at the remote URL:
https://api.acquislaw.com/mcp
In claude.ai → Settings → Connectors → Add custom connector, paste the URL
and complete the sign-in screen.
Cursor, Cline, VS Code and other MCP clients (stdio via the shim)
Clients that speak stdio can reach the remote server through the
mcp-remote adapter, which also
carries the OAuth flow:
{
"mcpServers": {
"acquis": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://api.acquislaw.com/mcp"]
}
}
}
/mcp is OAuth-protected, so an unauthenticated probe gets a 401 (that
challenge is what starts the sign-in flow). To let any client or directory read
the tool catalog without an account, there is a public introspection endpoint:
https://api.acquislaw.com/mcp/public
It advertises the same five tool definitions and returns no legal content —
every call points you back at the real endpoint. Use it to inspect the server;
use /mcp for answers.
Example
Prompt: "What does Article 6 of the AI Act say about high-risk
classification? Then verify that citation."
get_provision(act: "AI Act", article: "6") returns the eight paragraphs of
Article 6 verbatim, each with its EUR-Lex link; verify_fragment then
recomputes the content hash and confirms the ed25519 signing provenance.
More in examples/.
Not legal advice
Acquis returns official sources verbatim with citations. It is a retrieval
layer with provenance — not legal advice. Built by
Capybara Labs on
HIVE, our verifiable knowledge engine.