DingDuff
Claude connectorCommunityFree legal research tool built by attorneys for attorneys; connects Claude to US legal authority (statutes, rules of procedure, case law, c…
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.
- Tools
- 25
exposed by this connector
Movement
From our daily snapshots over the last 30 days.
Rank by popularity
#559of 8,9531places down24h6places down7d
Rank by trending score
#875of 3,55117places down24h1places up7d
Popularity score
13,294+2224h+1577d
Trending score
26,576−8124h+7537d
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Legal24th of 520 by popularity · 76th of 239 by trending score
Order by
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 22 |  General Legal | 13,313 | 13,215 #174 | 23places down |
| 23 | 13,307 | 6,169 #225 | 28places down | |
| 24 | 13,294 | 26,576 #76 | 6places down | |
| 25 | 13,207 | 25,494 #85 | 12places down | |
| 26 |  Paxton Legal Research | 13,205 | 10,269 #198 | 26places down |
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 74 |  Patent Bear | 27,052 | 8,693 #114 | 185places down |
| 75 | 26,643 | 5,248 #270 | — | |
| 76 | 26,576 | 13,294 #24 | 1places up | |
| 77 | 26,533 | 11,576 #49 | 57places up | |
| 78 | 26,492 | 6,858 #190 | — |
Productivity281st of 4,952 by popularity · 480th of 1,913 by trending score
Order by
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 279 | 13,347 | 22,451 #640 | 21places down | |
| 280 | 13,307 | 6,169 #1754 | 28places down | |
| 281 | 13,294 | 26,576 #480 | 6places down | |
| 282 |  Avoma | 13,287 | 33,024 #318 | 8places down |
| 283 | 13,277 | 117,726 #46 | 3places up |
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 478 | 26,643 | 5,248 #2319 | — | |
| 479 | 26,629 | 15,744 #116 | 57places up | |
| 480 | 26,576 | 13,294 #281 | 1places up | |
| 481 | 26,549 | 10,678 #619 | 174places down | |
| 482 | 26,534 | 11,289 #520 | 18places down |
Tools
- check_pacer_availability
- citecheck_review
- codes_browse
- codes_search
- codes_view
- courtlistener_full_search
- document_search_across_pacer_dockets
- metadata_view
- opinion_extract
- opinion_search
- fetch_opinion_file
- opinion_view
- pacer_docket_view
- pacer_document_view
- pacer_party_search
- retrieve_batch_screen
- search_courts
- search_for_pacer_docket
Show all 25Show fewer
- search_within_pacer_docket
- see_related_pacer_entries
- show_citing_opinions
- show_related_opinions
- fetch_statute_file
- submit_batch_screen
- opinion_verify
- Categories
- Sign-in
- Required
- Connector URL
- https://app.dingduff.com/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude Desktop
- Acts on
- Reference docs, Files & documents
- Department
- Legal
- Industry
- Legal
- Added
- June 26, 2026
- More info
- Sponsorship
- Promote this connector