Arca vs Kvasir
Arca
arca.legalKvasir
kvasir.legalSide by side
| Figure | Arca | Kvasir |
|---|---|---|
| Price from | — | €12/mo |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Plans published | 2 | 3 |
| Spec score · AI Legal Research Software | 8.5 (#2) | 8.0 (#13) |
| Headquarters | Arca’s own pages list 205 W 28th St, New York, NY 10001. | Bremen, Germany |
| Integrations | The site names Word, Slack, Outlook, and Salesforce as enterprise integrations. | The MCP endpoint is documented for ChatGPT, Claude, Microsoft 365 Copilot, Perplexity, and Mistral Le Chat. |
| Product | Arca is a platform for deploying legal and compliance agents that perform research, intake and standard operating procedures. | Kvasir provides a legal research app and a REST/MCP grounding API for German, Austrian, Swiss, and EU law. |
| Security | Arca states that it is SOC 2 Type II certified and GDPR compliant. | Kvasir says it does not currently hold SOC 2 Type II or ISO 27001 certification and offers a CAIQ-Lite questionnaire on request. |
| Support | Arca says enterprise deployments include dedicated support and offers demo contact through [email protected]. | The Impressum says the company generally responds on working days within one hour by email or LinkedIn. |
Plans
In their own words
Kvasir
Kvasir combines a legal research app with a REST and MCP grounding API for German, Austrian, Swiss, and EU law. It reports coverage across nine jurisdictions, with over 450,000 norms and over 450,000 court decisions refreshed daily. The API supports legal search, citation resolution, batch verification, draft checking, legal objects, and citation relations; it can also check citation existence and compare draft quotations with canonical wording. Full draft text is transmitted only through check_draft, which requires the separately granted legal.check scope. MCP setup is documented for ChatGPT, Claude, Microsoft 365 Copilot, Perplexity, and Mistral Le Chat; developer guides cover Claude Code, Claude Desktop, Cursor, and VS Code. Plain REST access is also available. The free Hobby plan costs nothing and includes the app, an API key, MCP, and 2,000 sips per month. A keyless sandbox allows 20 requests per day; the MCP demo allows 10 tool calls per day and IP. Kvasir says requests are processed in memory, not stored, while aggregate usage counters are retained.