court_code field of your API requests.
The authoritative, real-time coverage list is always available free of charge:
US federal courts
Federal court codes follow PACER conventions. Examples:
All 94 district courts, 94 bankruptcy courts, and all 13 circuit courts of appeals are covered. The full list is in
/v2/status.
PACER code exceptions — some courts use a DocketLayer code that differs from their native PACER subdomain. The authoritative mapping is in /v2/status under each court’s court_code and notes fields.
US state courts
State court codes are short, lowercase, alphanumeric identifiers. All 50 states are covered. Examples:
Note on Texas: All 37 Texas state courts carry
coverage: "planned" status pending commercial access approval from the Texas Office of Court Administration. They appear in /v2/status but return 422 on docket queries until the agreement is in place.
The full list of state court codes is in /v2/status.
Canadian courts
All 3 Canadian federal courts and 22 provincial/territorial superior courts are covered. The full list is in
/v2/status.
Finding a court code
Before querying, confirm the court you need is covered and note its exact code:"coverage": "full" is fully supported. A court with "coverage": "partial" is reachable but may have known gaps. Querying a court with "coverage": "planned" returns 422.
Case ID format
Each court’s expected case ID format is documented in/v2/status under case_id_format.pattern and case_id_format.example. See the case ID format guide for the US federal format convention.