OpenCase
Claude connectorCommunityCheck every citation and quotation in legal writing against the law itself, and answer legal questions with verified authority.
- Tools
- 11
exposed by this connector
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How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Legal125th of 167 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 122 |  iPify | 5,426 | — | |
| 123 |  CertScore.ai | 5,358 | 209places down | |
| 124 | 5,358 | 32places up | ||
| 125 | 5,358 | — | ||
| 126 |  Kayse for Claude | 5,285 | 215places down | |
| 127 | 5,285 | 135places down | ||
| 128 | 5,248 | — |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 |  Paxton Legal Research | 1,387,274 | 6places down | |
| 2 | 436,492 | 1places down | ||
| 3 |  Patent Bear | 289,074 | 45places up | |
| 4 |  PointOne | 231,587 | — | |
| 5 | 122,139 | 13places up | ||
| 6 |  8am MyCase | 117,028 | 43places up | |
| 7 |  Filevine | 82,152 | 70places down |
OpenCase checks legal writing against the law. It confirms that the cases, statutes, and regulations a brief, memo, or contract cites exist as cited, that quoted language appears word for word in the source, and whether a case is still good law. It also answers legal questions with authority it has retrieved and verified.
Tools:
- Verify citations in legal text: finds every citation in a document and checks each one.
- Resolve legal citations: checks a list of citations and returns source details.
- Check a quotation: confirms a quote appears word for word in the authority, honoring ellipses and brackets.
- Get legal authority: retrieves one authority's metadata and text.
- Check case validity and Get case treatments: report a case's good-law flag and the decisions that cited it.
- Research a legal question and Review document against law: return cited answers and grounded findings.
- Detect legal citations: lists citations and their positions without checking them.
- Search federal court dockets and Get a docket filing: search CourtListener RECAP.
Coverage spans US federal and state law and many other jurisdictions. OpenCase is a research tool, not a lawyer: a citation it cannot find may still exist, and a verified citation still needs a lawyer's judgment. Requires an OpenCase account, which you can create while connecting. Free accounts include 10 tool calls a day; a paid plan removes the limit.
Tools
- check_case_validity
- check_quote
- detect_legal_citations
- get_case_treatments
- get_docket_filing
- get_legal_authority
- research_legal_question
- resolve_legal_citations
- review_document_against_law
- search_dockets
- verify_citations_in_text
- Categories
- Made by
- OpenCase Inc. · Website
- Sign-in
- Required
- Connector URL
- https://www.opencase.com/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- September 29, 2026
- More info