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Caselaw Access Project Reporter Volume Metadata
x402
Caselaw Access Project Reporter Volume Metadata is a paid API for AI agents from api.companyrecords-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).
Returns volume-level metadata (volume number, publisher, year, jurisdictions, volume ID) for a specified legal reporter series from the Caselaw Access Project.
Price / call$0.002
Success—
StatusUnknown
How this service works
Caselaw Access Project volume metadata for one reporter (for example a2d = Atlantic Reporter, 2nd series): volume number, publisher, year, jurisdictions and volume ID. Returns volume metadata only; case texts are not included.
Output
A JSON object containing the reporter slug queried, the source URL on static.case.law, a checkedAt timestamp, the total number of volumes, and an array of volume objects each with volumeId, volumeNumber, publisher, publicationYear, jurisdictions array, reporterSlug, and a nullable title field.
Example use cases
Audit reporter coverage by jurisdiction
“I need to know which jurisdictions are covered across volumes of the Atlantic Reporter 3rd series (a3d) — can you fetch the metadata for up to 20 volumes so I can see the jurisdiction list for each?”
Verify publication timeline of US Reports
“What years were the US Reports (reporter slug: us) published? Grab metadata for the first 10 volumes so I can check the publication years and publishers.”
Build a reporter volume index
“I'm building a database of legal reporters — can you fetch volume metadata for the Pacific Reporter 2nd series (p2d), including volume IDs and publication years, returning up to 15 volumes?”
Technical details
Endpoint
GEThttps://api.companyrecords-api.workers.dev/api/gov/caselaw-access?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured bibliographic metadata about legal reporter volumes (volume numbers, years, publishers, jurisdictions) from the Caselaw Access Project without needing full case text. Ideal for building legal research indexes, verifying reporter coverage, or cross-referencing volume IDs before fetching case documents from another source.
Side effects
- Unknown or misspelled reporter slug returns empty volumes array or error
- Limit parameter outside 1–20 range may be rejected or clamped
- Reporter slug that exists on static.case.law but has no indexed metadata returns empty result
- Network timeout from upstream static.case.law data source
- Rate limiting or payment failure at the x402 paywall layer
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"source": "https://static.case.law/a2d/VolumesMetadata.json",
"volumes": [
{
"title": null,
"volumeId": "32044109578716",
"publisher": "West Publishing Co.",
"reporterSlug": "a2d",
"volumeNumber": "100",
"jurisdictions": [
"District of Columbia",
"Delaware"
],
"publicationYear": 1954
},
{
"title": null,
"volumeId": "32044109578567",
"publisher": "West Publishing Co.",
"reporterSlug": "a2d",
"volumeNumber": "101",
"jurisdictions": [
"District of Columbia",
"Delaware"
],
"publicationYear": 1954
}
],
"reporter": "a2d",
"checkedAt": "2026-10-23T09:37:13.719Z",
"totalVolumes": 967
}
}Tags
x402
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