OpenAI announced 26 partner-built plugins and 9 community plugins alongside Astra for Law on 17 September 2026. It didn't publish the full list. LawSites asked for one and, in Bob Ambrogi's words, "got no answer." This page collects every plugin named in public so far: 21 vendor plugins and 5 community plugins, grouped by what they do, each with a source. Then it covers the question a small firm actually has, which is whether the software it runs every day made the cut.
Last checked: 19 September 2026. We update this page as vendors announce. If you know of a plugin we missed, tell us and we'll add it with a source.
A note on the count
Our 21 plus 5 adds up to 26 by coincidence. OpenAI's 26 covers partner plugins only, so at least five of those are still unnamed, along with four of the nine community plugins. One of our 21 carries a flag: UniCourt announced its ChatGPT Enterprise plugin a day after the launch, and its release doesn't mention Astra for Law.
26partner plugins announced by OpenAI. No full list published.
21vendor plugins we could verify by name, each with a source.
5 of 9community plugins named so far. 47 custom skills were announced with them.
1small-firm practice management system on the list: Clio, through Vincent.
The whole list at a glance. Struck through means not on any public list.
Legal research and primary law
- CourtListener
- Descrybe
- UniCourt
- LegalZoom
- Patlytics
Document management
- iManage Work
- NetDocuments
- Box
Knowledge and firm intelligence
- Thomson Reuters HighQ
- DeepJudge
- Litera Foundation
Time, billing and operations
Practice management
- Clio, through Vincent
- MyCase
- Smokeball
- Filevine
- PracticePanther
- Lawmatics
- Litify
Community plugins
- LegalQuants Litigation
- LegalQuants Transactional
- LegalQuants Companion
- Spend Management Analysis
- Compliance Horizon Scanner
What nobody has said
Whether these plugins install outside OpenAI's Trusted Access program. Astra for Law itself is limited to selected US firms, and no public source says if the plugins follow the same rule.
Which ChatGPT legal plugins have been named so far?
Two trade publications did most of the work. Artificial Lawyer published the plugin directory names with their short taglines. LawSites collected vendor announcements and says its list is incomplete. Where they overlap, we use the more conservative wording. Quoted text is the source's own, and "directory tagline" means the short line in ChatGPT's plugin directory as Artificial Lawyer reported it.
Legal research and primary law
| Plugin |
What it does |
Source |
| CourtListener (Free Law Project) |
Connects ChatGPT to the Free Law Project's CourtListener database of legal research materials. Directory tagline: "Legal research for everyone." |
LawSites |
| Descrybe Legal Engine |
"Gives ChatGPT users access to structured, verifiable U.S. primary law and legal intelligence built specifically for AI." Needs a Descrybe subscription. |
LawSites |
| UniCourt |
Searches dockets and documents "across more than 5,000 state and federal courts in 46 states" from ChatGPT Enterprise. Needs an active UniCourt enterprise subscription. Announced 18 September; not tied to Astra for Law in its release. |
LawSites |
| LegalZoom |
"Ask questions of and discover resources on LegalZoom." Directory tagline: "Get legal info for business." |
LawSites |
| Patlytics |
Named in the list with no description published. We haven't found a vendor announcement yet. |
Artificial Lawyer |
Document management
| Plugin |
What it does |
Source |
| iManage Work |
OpenAI's example: a lawyer drafts a negotiation brief in ChatGPT and saves it to the matter file. Directory tagline: "Governed knowledge. AI ready." |
LawSites |
| NetDocuments |
Directory tagline: "Search and retrieve documents." Per LawSites, it "makes it easier for legal professionals to discover and activate NetDocuments directly within ChatGPT." |
LawSites |
| Box |
Directory tagline: "Search and reference your documents." |
Artificial Lawyer |
Contracts and CLM
| Plugin |
What it does |
Source |
| Ironclad Contracts |
"Lets ChatGPT search an Ironclad contract repository and workflows using plain language." |
LawSites |
| Docusign |
Directory tagline: "Manage contracts from ChatGPT." |
Artificial Lawyer |
| Definely |
Named in the list with no description published. We haven't found a vendor announcement yet. |
Artificial Lawyer |
E-discovery and evidence
| Plugin |
What it does |
Source |
| Relativity |
"Connects Relativity aiR directly to ChatGPT Enterprise and enables users to stand up workspaces, organize case data and manage legal operations." |
LawSites |
| Everlaw |
A plugin that "lets legal teams query case evidence directly in ChatGPT Enterprise," with existing Everlaw permissions kept in place. Everlaw says it's available now. |
eDiscovery Today |
Knowledge and firm intelligence
| Plugin |
What it does |
Source |
| Thomson Reuters HighQ |
Brings HighQ matter context into ChatGPT. Thomson Reuters: "starting today HighQ is available through a Model Context Protocol (MCP) connection." |
Thomson Reuters |
| DeepJudge |
"Helps users search internal documents, retrieve source content, and run search tasks." OpenAI's example: bringing prior deals into a comparison. |
LawSites |
| Litera Foundation AI Search |
"Lets Foundation Cloud users ask questions about their firm's experience, relationships and people." |
LawSites |
Time, billing and operations
| Plugin |
What it does |
Source |
| Intapp Celeste |
"Allows users to search, create, and update records across the Intapp Celeste portfolio." OpenAI's example: surfacing activities that may need a time entry. |
LawSites |
| Laurel |
"Retrieve time entries and activities from within ChatGPT." |
LawSites |
Practice management
| Plugin |
What it does |
Source |
| Clio (Vincent) |
"Vincent is available in Codex, through a new MCP plugin." Clio describes bringing its "legal content and matter context into Codex." For Vincent and Clio Work customers. Directory tagline: "Access Vincent in Clio." |
Clio, LawSites |
| Plugin |
What it does |
Source |
| Harvey |
Directory tagline: "Legal intelligence from Harvey." |
Artificial Lawyer |
| Legora |
Directory tagline: "Legal research with citations." |
Artificial Lawyer |
Thomson Reuters is also previewing a CoCounsel Legal experience inside ChatGPT. Its own post calls it "coming," with no date, so we haven't counted it.
Community plugins and skills
OpenAI says nine community plugins were built by lawyers and legal engineers at LegalQuants, LegalEng Consulting Group (LECG) and Skills.law, and that legal "power users" wrote the 47 custom skills. Five of the nine plugins have been named.
| Plugin |
What it does |
Source |
| LegalQuants Litigation |
Directory tagline: "Workflows for litigators." |
Artificial Lawyer |
| LegalQuants Transactional |
Directory tagline: "Contract and deal workflows." |
Artificial Lawyer |
| The LegalQuants Companion |
Directory tagline: "Your AI journey as a lawyer." |
Artificial Lawyer |
| Spend Management Analysis |
Directory tagline: "Analyze legal spend and risk." The listing address points to LECG; the article doesn't name the author in its text. |
Artificial Lawyer |
| Compliance Horizon Scanner |
Directory tagline: "Research regulatory changes." Same LECG attribution note as above. |
Artificial Lawyer |
| Skills.law |
Named by OpenAI as a community builder. None of its plugins has been named in public yet. |
LawSites |
What is a ChatGPT plugin in this release, technically?
Less is public here than you'd expect, and this is what we can source.
- Several plugins are built on MCP, the open Model Context Protocol. Thomson Reuters says HighQ "is available through a Model Context Protocol (MCP) connection." Clio calls its one "a new MCP plugin" that links Codex to the firm's Clio account.
- Artificial Lawyer's write-up includes this line on developer mode: "you can build custom private plugins that connect proprietary data and tools to ChatGPT, or add MCP-based plugins from other sources."
- Most vendor plugins need an active subscription to the vendor's product. UniCourt and Descrybe say so directly.
What isn't stated anywhere we could find: whether these plugins install in an ordinary ChatGPT Business or Enterprise workspace outside Trusted Access. Astra for Law, the model configuration, is limited to selected US law firms. Everlaw, Descrybe, Relativity and UniCourt talk about "ChatGPT Enterprise" and never mention Trusted Access, which hints that the plugins travel separately from the model. A hint is all it is. Neither OpenAI nor any vendor has said it plainly, so ask the vendor before you plan around it.
For our own part: we haven't tested our connectors in ChatGPT, and we make no claim here that they work there.
Which practice management systems are missing?
Most of them. Here are the seven systems we hear about most from firms under 50 attorneys, checked against every public plugin list, with what exists for Claude in the right-hand column for comparison.
| System |
In OpenAI's legal plugin list? |
What exists on the Claude side? |
| Clio |
Yes, with limits
through Vincent, in Codex, for Vincent and Clio Work customers. Clio's announcement describes legal research, docket content and matter context. The scope of matter access isn't spelled out in public coverage yet. |
Our open-source Clio connector, which reads and writes. No vendor-official Claude connector as of our last check on 9 September 2026. |
| MyCase |
Not listed
. |
MyCase ships an official read-only connector for Claude Team and Enterprise. Our open-source MyCase connector also writes. |
| Smokeball |
Not listed
. |
No vendor connector we know of. Unofficial open-source projects have started to appear on GitHub. We haven't reviewed or tested any of them, so we don't link them here. |
| Filevine |
Not listed
. |
Our open-source connector for Claude. |
| PracticePanther |
Not listed
. |
No vendor connector we know of. Unofficial open-source projects have started to appear on GitHub. We haven't reviewed or tested any of them, so we don't link them here. |
| Lawmatics |
Not listed
. |
Our open-source connector for Claude. |
| Litify |
Not listed
. |
None we know of. |
"Not listed" means the name appears in none of the public lists as of 19 September 2026. With at least five partner plugins still unnamed, one of these vendors could turn up next week, and we'll change the row when it does. For the Clio options on the Claude side, see our comparison of Clio MCP connectors.
What does this mean for a firm under 50 attorneys?
Read the vendor names again: iManage, NetDocuments, Relativity, Everlaw, Intapp, HighQ, Litera Foundation. That's the software stack of a firm with a knowledge management team and an e-discovery budget. It fits the launch, since Astra for Law goes first to selected large US firms (LawSites says the program targets the Am Law 200). Our explainer on who can get Astra for Law covers the access side.
A 12-attorney firm looks different. Its system of record is the practice management tool: matters, contacts, tasks, time, billing, often documents too. An assistant that can't see that system can help with research and drafting, and it can't answer "what's overdue on my open matters this week?" So the category where a small firm needs coverage most is the one with a single row in it.
1
Check whether your vendor ships its own connector
MyCase already does for Claude. Clio now has one for Codex through Vincent. Ask your account rep what's planned, for which AI product, and on which plan.
2
If your vendor has nothing, MCP is an open protocol
Any system with an API can get a connector, and the firm can own it: the code, the sign-in setup, the audit log of what the assistant touched. That's the work we do. Our Clio and MyCase connectors are free and open source, both read and write, and the Clio one is the more mature of the two. If you want one installed for a few people, that's guided setup. If you want it rolled out across the firm with per-attorney sign-in and one audit log, that's firm deployment.
Neither step depends on getting into Trusted Access. Whatever assistant your firm uses, its output still needs a lawyer's review, and OpenAI says the same about Astra for Law.
Your system isn't on the list?
If it has an API, it can have a connector your firm owns. Tell us what you run and we'll tell you what it takes.
How does this compare with Claude for Legal's connector list?
Anthropic launched Claude for Legal on 12 May 2026 with more than 20 MCP connectors, free to install for any paid Claude customer. Put the two lists side by side and the overlap is large. Ironclad, DocuSign, Definely, iManage, NetDocuments, Relativity, Everlaw, Box, Harvey, Thomson Reuters, Descrybe and Free Law Project's CourtListener appear on both. Twelve vendors, two platforms, four months apart.
That overlap shows how vendors are thinking: they're building for every assistant their customers might use. Small-firm practice management is thin on both lists. Claude for Legal's launch list had no Clio or MyCase connector either, and MyCase's official Claude connector arrived later, from MyCase itself. The three-way breakdown, Google's Gemini Enterprise for Legal included, is in Astra for Law vs Claude for Legal vs Gemini.
Frequently Asked Questions
Does ChatGPT have a Clio plugin?
Yes, with limits. Clio announced on 17 September 2026 that Vincent, its legal research AI, is available in Codex through a new MCP plugin, for Vincent and Clio Work customers. Clio's announcement describes legal research, docket content and matter context. Public coverage doesn't yet spell out the scope of matter access, so treat that as an open question until Clio documents it. We haven't seen a separate plugin for Clio Manage itself on any public list.
Does ChatGPT connect to MyCase?
MyCase isn't on any public list of OpenAI's legal plugins as of 19 September 2026. On the Claude side, MyCase ships an official read-only connector for Claude Team and Enterprise plans, and Oktopeak maintains an open-source MyCase connector for Claude that reads and writes. We haven't tested our connector in ChatGPT, so we make no claim about it working there.
How many legal plugins did OpenAI launch?
OpenAI announced 26 partner-built plugins, 9 community plugins and 47 custom skills alongside Astra for Law on 17 September 2026. It hasn't published a complete list, and LawSites reported getting no answer when it asked for one. As of 19 September 2026 we could verify 21 vendor plugins and 5 community plugins by name, so at least five partner plugins and four community plugins are still unnamed in public.
Do I need Astra for Law to use the legal plugins?
That hasn't been stated publicly. Astra for Law itself is limited to selected US law firms through OpenAI's Trusted Access program. Several vendors, including Everlaw, Descrybe, Relativity and UniCourt, describe their plugins as working with ChatGPT Enterprise and say nothing about Trusted Access, and most also require an active subscription to the vendor's own product. No source we read says whether a ChatGPT Business or Enterprise workspace outside Trusted Access can install all of them. Ask the vendor before you plan around it.
Are ChatGPT legal plugins the same as MCP connectors?
Some are built on MCP. Thomson Reuters says HighQ is available through an MCP connection, and Clio calls its plugin a new MCP plugin. Artificial Lawyer's write-up notes that developer mode lets a workspace add MCP-based plugins from other sources. Whether all 26 partner plugins use MCP hasn't been published. The safe reading: plugin is OpenAI's packaging term, and MCP is one of the ways a plugin can connect to a vendor's system.
Next step
If your firm runs on a system that isn't on this list and you want an assistant that can see your matters, book 30 minutes with us. Tell us what you run, and we'll tell you what exists for it today and what it would take to connect it.
