Vaquill AI US Session Laws API
State session laws: the acts of each legislature as they were enacted, chapter by chapter, before they are folded into a code. A session law is what the governor signs. It carries the act's own text, including the language it strikes and inserts, its approval and effective dates, and, where the publisher prints one, the code sections it changes. That makes it the source for "which act changed this section, and when did it take effect".Every act has a permanent `sessionLawId` (for example `SSL_MN_2025R_G_Y2025_C1`, Minnesota Laws 2025, regular session, chapter 1) whether or not we hold its text, and a citation or bill number such as `S.F.No. 1552` is accepted where an id goes. v1 serves STATE acts only. Federal session laws (the Statutes at Large, `SAL_` ids) are served by `/us/statutes/section`, and `/us/statutes/resolve` points a session-law citation here.**Start here**: check `/us/statutes/coverage` (free) for what we hold per state: each jurisdiction's `sessionLaws` block lists its sessions, which are complete or only partly collected, and the `series` and `instrumentTypes` that exist. Then **List** a session or a date range to get ids, **Get** one act for its record, then **Body** for its text. A law missing from a partly collected session is a free 404 (`session_not_fully_collected`), not proof it does not exist.- **List**: everything enacted in a state's session, approved in a window, or taking effect on a date- **Get**: one act by id or by citation; dates (`effectiveDates` is always a list), sources and the code sections it affects- **Body**: the act's text as printed, paged by cursor, with amendatory markup preserved where the publisher printed it- **Batch**: up to 50 ids or citations in one call, the same record as Get, billed per law served, with every miss listed and its reason- **Changes**: a sync feed of the registry over an integer cursor (`sinceId`): what began to be served, was corrected, withdrawn or mergedThe reverse link, from a code section to the acts a publisher's own tables list against it, is `GET /us/statutes/section/{actId}/enactments`.
Vaquill AI US Session Laws API is one of 26 APIs that Vaquill AI publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
This API exposes 18 JSON Schema definitions.
Tagged areas include US Session Laws. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a getting-started guide, a changelog, and 18 JSON Schemas.
This API exposes 6 operations across 6 paths, and defines 31 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.
Requests are made against a single base URL, https://api.vaquill.ai.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 3
Vaquill AI US Session Laws API declares
3 security schemes
for authenticating requests.
It accepts HTTP bearer tokens (vq_key_*) (ApiKeyAuth).
An API key is passed in the header as X-API-Key (ApiKeyHeader).
An API key is passed in the query as api_key (ApiKeyQuery).
By default, every request must be authenticated.
ApiKeyAuth— API key issued from the developer dashboard. Pass as Authorization: Bearer vqkey... (preferred).ApiKeyHeader— The same API key as a bare header value: X-API-Key: vqkey.... Equivalent to the Bearer form.ApiKeyQuery— The same API key as a query parameter: ?apikey=vqkey.... Use only where you cannot set a header. A URL can end up in proxy and server logs, browser history and…
Paths & Operations 6
Across 6 paths, the API surfaces 6 operations — 4 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.
State session laws: the acts of each legislature as they were enacted, chapter by chapter, before they are folded into a code.
Schemas 31
The contract defines 31 schemas that model the data the API accepts and returns. The most detailed are SessionLawBatchLaw (50 properties), SessionLawResponse (46 properties), SessionLawSummary (33 properties), SessionLawBodyResponse (25 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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