Who it is for
Attorneys checking statutes, opinions and dockets, and validating citations in a draft.
DingDuff
Primary US legal authority with deterministic citation review
Overview
What DingDuff does
DingDuff reaches primary legal authority directly instead of through another AI layer, which is the distinction the publisher leads with. State and federal statutes, regulations and court rules can be browsed, searched, viewed and downloaded.
Opinion search supports boolean operators, fielded searches, phrase matching and citation-network lookup, so every case citing a given decision can be pulled as a set. PACER dockets and documents come through the CourtListener RECAP archive. A separate function runs a deterministic citation review over a drafted memo or brief, which checks a document's citations instead of generating new ones. Community tier, documentation published.
Tool surface
Credentials are required first, so twenty-four is the listing's own count. Statute and rule browsing, opinion search with boolean and fielded queries, PACER docket retrieval, and citation review are the groupings described.
Availability
Where DingDuff is listed
DingDuff is listed in the Claude connectors directory only. DingDuff has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one.
Claude listing
In the Claude connectors directory
DingDuff publishes 24 tools to Claude, deeper than 75.5% of the 1,253 Claude-listed connectors.
The median Claude-listed connector filed under Legal publishes 11, so this one runs 13 tools above its bucket's median and ranks 8th of 33 by tool count.
It falls in the 21-50 tools band, which holds 20% of the Claude directory.
DingDuff publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally.
Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there.
- Publisher
- DingDuff
- Verification
- Community-listed (61.5% of the Claude directory)
- Filed under
- Legal
- Endpoint
-
https://app.dingduff.com/mcp - Documentation
- Publisher setup docs
- Published tools
- 24 · 21-50 tools band
- Depth rank in Legal
- 8 of 33
- Snapshot
- August 2026
DingDuff is community-listed in the Claude directory, the tier 770 of 1,253 connectors sit in (61.5%). It is the default for a self-published server, and says nothing either way about quality.
In the publisher's words
How DingDuff describes it
DingDuff gives Claude the ability to directly access the law without going through another AI system. Once connected to DingDuff, Claude can: • Browse, search, view, and download state and federal statutes, regulations, and court rules such as rules of civil procedure, rules of evidence, etc. • Search, view, and download federal and state court opinions using boolean operators, fielded searches, phrase matching, and citation-network lookup ("show every case citing X"). • Pull PACER dockets and documents through the CourtListener RECAP archive. • Run a deterministic citation review on a drafted memo or brief with the source passage highlighted alongside the cite for easy human verification. Quotes are checked against the cited authority programmatically (not by AI), preventing hallucinated citations from getting through. DingDuff was built by attorneys who use it daily, making it a tool that does what attorneys actually need and a tool that attorneys actually like to use.
Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it.
Nearby
Other Legal connectors
DocketBird
283M federal court filings and the litigation relationships behind them
Claude
CiteLaw
US case law, statutes and regulations with verifiable citations
Claude
DirectCase Legal Search
National and European legal research with a source on every claim
Claude
JUDY
Case law and legislation from Ghana, Nigeria and Kenya
Claude
Jusratio BR
Brazilian case law and legislation ranked by legal authority
Claude
LibreJustice
French and European case law with legal texts as they read on a date
Claude
This is an independent catalogue entry compiled by Node8 from DingDuff's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with DingDuff, and inclusion here is not an endorsement.
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