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Legal Memory API - Case Detail Lookup
x402
Legal Memory API - Case Detail Lookup is a paid API for AI agents from legal.memoryapi.org, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).
Retrieve detailed information about a specific federal court case or docket by its ID or name.
Price / call$0.01
Success—
StatusDown
How this service works
Federal court opinion search via CourtListener. Search 10M+ opinions, docket records, and case history. Pay-per-request via x402 protocol on Base mainnet.
Output
Returns detailed information about the specified court case, including docket number, case name, parties involved, court jurisdiction, case status, filing dates, and related docket entries from the federal court record.
Example use cases
Verify defendant identity in litigation
“I need to confirm who exactly was sued in case 2:20-cv-45832 filed in the Eastern District of Texas. Can you pull up the full docket to see all parties involved?”
Track motion and hearing deadlines
“What's the current status of Smith v. Johnson, case number 1:22-cv-78901 in the Northern District of California? I need to know what filings are pending and what the next deadlines are.”
Assess competitor legal exposure
“Can you look up docket information for the case TechCorp Inc. v. DataSystems LLC, docket 3:21-cv-54321 from the Central District of Illinois? I want to see the full case timeline and what claims were filed.”
Technical details
Endpoint
GEThttps://legal.memoryapi.org/x402/legal/caseWhen to prefer
Use this endpoint when you already know a specific case ID, docket number, or precise case name and need full details about that single case. Prefer this over the search/company-lookup sibling endpoints when you have a specific identifier rather than needing to discover cases. Best for retrieving structured docket metadata for a known federal proceeding.
Side effects
- Case ID or name not found — returns 404 or empty result
- Ambiguous case name matches multiple records — may return unexpected case
- Case exists in state court (not federal) — not covered by this endpoint
- Payment failure (x402 protocol) — call blocked if USDC payment not processed
- Invalid docket format — malformed ID returns error
Input
{
"method": "GET"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — |
Output
{
"cases": [
{
"url": "https://www.courtlistener.com/opinion/4487344/united-states-v-microsoft-corp/",
"court": "Supreme Court of the United States",
"citation": "584 U.S. 236, 138 S. Ct. 1186, 200 L. Ed. 2d 610, 2018 U.S. LEXIS 2495",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "2018-04-17",
"docket_number": "17-2"
},
{
"url": "https://www.courtlistener.com/opinion/7317711/united-states-v-microsoft-corp/",
"court": "District Court, W.D. Washington",
"citation": "154 F. Supp. 3d 1134",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "2015-11-20",
"docket_number": "Case No. C15-00102RSM, Case No. C15-00103RSM"
},
{
"url": "https://www.courtlistener.com/opinion/2503780/united-states-v-microsoft-corp/",
"court": "District Court, District of Columbia",
"citation": "215 F. Supp. 2d 1, 2002 U.S. Dist. LEXIS 13863, 2002 WL 1676762",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "2002-07-01",
"docket_number": "CIV.A.98-1232(CKK)"
},
{
"url": "https://www.courtlistener.com/opinion/2452490/united-states-v-microsoft-corp/",
"court": "District Court, District of Columbia",
"citation": "231 F. Supp. 2d 144, 2002 U.S. Dist. LEXIS 21098, 2002 WL 31439450",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "2002-11-01",
"docket_number": "CIV.A.98-1232(CKK)"
},
{
"url": "https://www.courtlistener.com/opinion/2307082/united-states-v-microsoft-corp/",
"court": "District Court, District of Columbia",
"citation": "87 F. Supp. 2d 30, 54 U.S.P.Q. 2d (BNA) 1365, 2000 Daily Journal DAR 3575, 2000 U.S. Dist. LEXIS 4014, 2000 WL 340768",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "2000-04-03",
"docket_number": "Civil Action 98-1232 (TPJ), 98-1233 (TPJ)"
},
{
"url": "https://www.courtlistener.com/opinion/768835/united-states-v-microsoft-corporation/",
"court": "Court of Appeals for the D.C. Circuit",
"citation": "213 F.3d 764, 341 U.S. App. D.C. 407, 2000 U.S. App. LEXIS 19134, 2000 WL 763598",
"case_name": "United States v. Microsoft Corporation",
"date_filed": "2000-06-13",
"docket_number": "00-5212"
},
{
"url": "https://www.courtlistener.com/opinion/185418/united-states-v-microsoft-corp/",
"court": "Court of Appeals for the D.C. Circuit",
"citation": "253 F.3d 34, 346 U.S. App. D.C. 330, 2001 U.S. App. LEXIS 14324, 2001 WL 721343",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "2001-06-28",
"docket_number": "No. 00-5212 consolidated with 00-5213"
},
{
"url": "https://www.courtlistener.com/opinion/184738/united-states-v-microsoft-corp/",
"court": "Court of Appeals for the D.C. Circuit",
"citation": "165 F.3d 952, 334 U.S. App. D.C. 165, 42 Fed. R. Serv. 3d 1076, 27 Media L. Rep. (BNA) 1300, 1999 U.S. App. LEXIS 1161, 1999 WL 34827",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "1999-01-29",
"docket_number": "17-1181"
},
{
"url": "https://www.courtlistener.com/opinion/2497700/united-states-v-microsoft-corp/",
"court": "District Court, District of Columbia",
"citation": "84 F. Supp. 2d 9, 1999 U.S. Dist. LEXIS 21782, 1999 WL 1456114",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "1999-11-05",
"docket_number": "CIV. A. 98-1232(TPJ), CIV. A. 98-1233(TPJ)"
},
{
"url": "https://www.courtlistener.com/opinion/2339529/united-states-v-microsoft-corp/",
"court": "District Court, District of Columbia",
"citation": "97 F. Supp. 2d 59, 2000 U.S. Dist. LEXIS 7582, 2000 WL 726757",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "2000-06-07",
"docket_number": "CIV. A. 98-1232(TPJ), CIV. A. 98-1233(TPJ)"
},
{
"url": "https://www.courtlistener.com/opinion/2425425/united-states-v-microsoft-corp/",
"court": "District Court, District of Columbia",
"citation": "65 F. Supp. 2d 1, 1999 U.S. Dist. LEXIS 17110, 1999 WL 1001107",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "1999-11-05",
"docket_number": "CIV. A. 98-1232(TPJ), CIV. A. 98-1233(TPJ)"
},
{
"url": "https://www.courtlistener.com/opinion/184611/united-states-v-microsoft-corp/",
"court": "Court of Appeals for the D.C. Circuit",
"citation": "147 F.3d 935",
"case_name": "United States v. Microsoft Corp",
"date_filed": "1998-07-17",
"docket_number": "97-5343"
},
{
"url": "https://www.courtlistener.com/opinion/1883068/united-states-v-microsoft-corp/",
"court": "District Court, District of Columbia",
"citation": "980 F. Supp. 537, 1997 U.S. Dist. LEXIS 19496, 1997 WL 764994",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "1997-12-11",
"docket_number": "CIV.A. 94-1564 TPJ"
},
{
"url": "https://www.courtlistener.com/opinion/184556/united-states-v-microsoft-corp/",
"court": "Court of Appeals for the D.C. Circuit",
"citation": "147 F.3d 935, 331 U.S. App. D.C. 121, 41 Fed. R. Serv. 3d 216, 1998 U.S. App. LEXIS 13242",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "1998-06-23",
"docket_number": "97-5343 and 98-5012"
},
{
"url": "https://www.courtlistener.com/opinion/184610/united-states-v-microsoft-corp/",
"court": "Court of Appeals for the D.C. Circuit",
"citation": "147 F.3d 935",
"case_name": "United States v. Microsoft Corp",
"date_filed": "1998-07-17",
"docket_number": "97-5343"
},
{
"url": "https://www.courtlistener.com/opinion/9046386/united-states-v-microsoft-corp/",
"court": "District Court, District of Columbia",
"citation": "159 F.R.D. 318, 1995 U.S. Dist. LEXIS 1654, 1995 WL 59480",
"case_name": "United States v. Microsoft Corp.",
"date_filed": "1995-02-14",
"docket_number": "Civ. A. No. 94-1564"
},
{
"url": "https://www.courtlistener.com/opinion/4340638/microsoft-corp-v-united-states/",
"court": "Court of Appeals for the Second Circuit",
"citation": "",
"case_name": "Microsoft Corp. v. United States",
"date_filed": "2017-01-24",
"docket_number": "14-2985"
},
{
"url": "https://www.courtlistener.com/opinion/8443266/microsoft-corp-v-united-states/",
"court": "Court of Appeals for the Second Circuit",
"citation": "855 F.3d 53, 2017 WL 362765, 2017 U.S. App. LEXIS 1274",
"case_name": "Microsoft Corp. v. United States",
"date_filed": "2017-01-24",
"docket_number": "14-2985"
},
{
"url": "https://www.courtlistener.com/opinion/4238423/microsoft-corp-v-united-states/",
"court": "Court of Appeals for the Second Circuit",
"citation": "829 F.3d 197, 2016 WL 3770056",
"case_name": "Microsoft Corp. v. United States",
"date_filed": "2016-07-14",
"docket_number": "Docket 14-2985"
},
{
"url": "https://www.courtlistener.com/opinion/697616/united-states-v-microsoft-corporation-united-states-of-america-v/",
"court": "Court of Appeals for the D.C. Circuit",
"citation": "56 F.3d 1448, 312 U.S. App. D.C. 378, 1995 WL 357850",
"case_name": "United States v. Microsoft Corporation. United States of America v. Microsoft Corporation",
"date_filed": "1995-08-17",
"docket_number": "95-5037, 95-5039"
}
],
"count": 20,
"query": "United States v. Microsoft",
"source": "CourtListener / RECAP Archive",
"success": true,
"disclaimer": "Public court records. Verify at courtlistener.com.",
"total_available": 8896
}Schema · Response
{
"example": {
"cause": null,
"court": "scotus",
"parties": null,
"success": true,
"case_name": "Roe v. Wade",
"date_filed": "1970-01-01",
"docket_number": "70-18",
"nature_of_suit": null,
"opinions_count": 3
}
}Tags
x402
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