CourtListener (BYOK)

CourtListener (BYOK) — connector documentation

• MCP endpoint: https://byok-courtlistener.connectorbay.com/mcp
• REST API: POST https://byok-courtlistener.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-courtlistener.connectorbay.com/openapi.json
• Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
• Authentication: your own CourtListener CourtListener API token, sent in the X-Upstream-Key header of every request (never stored, logged or cached)
• Health: https://byok-courtlistener.connectorbay.com/health · Tool schemas: https://byok-courtlistener.connectorbay.com/tools.json
• Publisher: Unify Dynamics LLC · connectorbay.com/byok-courtlistener · agent@connectorbay.com

What CourtListener (BYOK) is for

CourtListener (BYOK) lets an AI assistant read your own CourtListener data through the CourtListener API with a key you supply (CourtListener API token). Read-only: 7 tools (search_case_law, search_other_collections, list_dockets, get_docket, get_opinion_cluster, get_opinion, list_citation_links). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to www.courtlistener.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by CourtListener. CourtListener and its logos are trademarks of their owners and are used only to say which service the connector works with.

Ask your assistant things like:

• "Find case law about qualified immunity filed since 2020"
• "Search federal dockets about a company named Acme"
• "Show dockets in the Supreme Court with docket number 23A994"
• "Show docket 4214664"
• "Look up the case with cluster id 2812209 (Obergefell v. Hodges)"
• "Show the text of opinion 9969234"

What it does

• search_case_law: Search U.S. court opinions (case law) by keywords or advanced operators such as caseName:, court_id: or dateFiled:[2020-01-01 TO 2024-12-31]. Returns case name, citations, court, filing date, cite count and matching snippets. Only published opinions are included by default; page with cursor. Default accounts are limited to 5 requests per minute and 125 per day.
• search_other_collections: Search CourtListener's other collections with the same query syntax: federal docket filings in PACER (r), PACER documents (rd), federal dockets (d), judges (p) or oral argument audio (oa). Returns the search engine's own fields, shortened. Default accounts are limited to 5 requests per minute and 125 per day.
• list_dockets: List dockets (case records) filtered by court and docket number, with case name, filing and termination dates, judge name and nature of suit. Page with cursor. Default accounts are limited to 5 requests per minute and 125 per day.
• get_docket: Get one docket: case name, court, docket number, dates, assigned judge name, cause and nature of suit, and the opinion clusters linked to it (no entries, parties or attorneys). Default accounts are limited to 5 requests per minute and 125 per day.
• get_opinion_cluster: Get one opinion cluster (the grouped decisions of a case; its id is the number in a CourtListener /opinion// URL): case name, docket link, citations, judges and the ids of its sub-opinions. Default accounts are limited to 5 requests per minute and 125 per day.
• get_opinion: Get one opinion: its type (lead, concurrence, dissent ...), original download URL and the text as HTML with linked citations. Long opinions are cut off. Default accounts are limited to 5 requests per minute and 125 per day.
• list_citation_links: List citation links of the case law graph: filter by citing_opinion to see what an opinion cites, or by cited_opinion to see which later opinions cite it. Each row links two opinion URLs. Page with cursor. Default accounts are limited to 5 requests per minute and 125 per day.

BYOK key

You bring your own CourtListener CourtListener API token (https://www.courtlistener.com/profile/api-token/). Your assistant sends it in the X-Upstream-Key header with each request. ConnectorBay uses it for that one call only: it is never stored, logged or cached, never shown in an answer, and it is only sent to www.courtlistener.com over https, with no redirects followed. Create a key with the fewest permissions the tools need (read-only if the provider offers it), and revoke it at the provider whenever you like.

Data sources

• https://www.courtlistener.com/help/api/rest/ (the API this connector calls, with a BYOK key)

Live from the CourtListener API (www.courtlistener.com) with a BYOK key; documentation: https://www.courtlistener.com/help/api/rest/. Endpoints checked against that documentation on 2026-10-16.

What it is not

Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by CourtListener. CourtListener and its logos are trademarks of their owners and are used only to say which service the connector works with. It is read-only: it never creates, changes, sends or deletes anything in your CourtListener account.

Built for: Worldwide. Languages: English.

CourtListener (BYOK) — Privacy Policy

Effective 24 October 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What CourtListener (BYOK) is. CourtListener (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own CourtListener data: Search U.S. case law and PACER dockets, read opinions, dockets and citation links on CourtListener (Free Law Project) with BYOK. You bring your own CourtListener CourtListener API token; the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one CourtListener call you asked for. Our application does not store it, write it to a log, put it in a cache, or share it. It is sent only to www.courtlistener.com, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If CourtListener rejects it, we say so without repeating it.

What we receive. The arguments of each tool call, the BYOK key (for that call only), the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant) and standard server logs. What CourtListener receives. The request we make on your behalf, including the key and the arguments, under CourtListener's own terms and privacy policy. CourtListener acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer CourtListener gives for your request, trimmed to the fields the tool documents. We do not keep it: it is returned to your assistant and not stored, cached or used to train anything.

What we do not do. We do not build a profile, sell or share personal information, or keep your CourtListener data. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting access logs (IP addresses, request paths and status codes) are kept for up to 30 days for security and abuse prevention; our application adds no request headers or bodies to them.

Sub-processors. CourtListener (the API you call with a BYOK key, at your direction). Hosting: Vercel (United States regions).

Your rights. Because we store no personal data beyond short-lived logs, requests to access, correct or delete data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. Revoke your key at CourtListener at any time to end all access.

Children. CourtListener (BYOK) is a general-audience service operated by the adult using the assistant, under CourtListener's own age rules.

Changes. We will post changes here with a new effective date.

CourtListener (BYOK) — Terms of Service

Effective 24 October 2026. These terms govern use of the CourtListener (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. CourtListener (BYOK) provides: Search U.S. case law and PACER dockets, read opinions, dockets and citation links on CourtListener (Free Law Project) with BYOK. It is accessed through an AI assistant or directly over MCP or HTTP, and is read-only.
2. Your own key, your own account. You must use your own CourtListener credentials and only access data you are allowed to access. CourtListener's terms apply to your use of CourtListener; you are responsible for complying with them, including any rate limits and permitted uses. Do not share a key you do not own.
3. Independent. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by CourtListener. CourtListener and its logos are trademarks of their owners and are used only to say which service the connector works with.
4. No advice, no guarantees. Output is the data CourtListener returns, lightly trimmed; it may be incomplete, delayed or changed by CourtListener. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your CourtListener account.
6. Acceptable use. Automated use within the published rate limits is welcome. Do not use the Service to access data you are not entitled to, to circumvent CourtListener's controls, or to attack any system.
7. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time; CourtListener may change or end its API at any time.
8. Data. Our Privacy Policy describes what we process. In short: the BYOK key is used for the one call and not stored or logged.
9. Pro keys. Optional ConnectorBay Pro API keys are issued at our discretion and are separate from your CourtListener key.
10. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service, including any action CourtListener takes on your account. Our total liability is limited to US $100.
11. Governing law. California law; venue in San Mateo County, California.
12. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/byok-courtlistener

CourtListener (BYOK) support

Email agent@connectorbay.com. We answer within two business days.

• MCP endpoint: https://byok-courtlistener.connectorbay.com/mcp
• REST API: https://byok-courtlistener.connectorbay.com/openapi.json
• Live status: https://byok-courtlistener.connectorbay.com/health

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. CourtListener (BYOK) never asks for them.