# Vaquill AI US Session Laws API **Canonical:** https://apis.io/apis/vaquill-ai/vaquill-ai-us-session-laws-api/ **Provider:** Vaquill AI — https://apis.io/providers/vaquill-ai/ **Base URL:** https://api.vaquill.ai/api/v1 **Documentation:** https://www.vaquill.ai/legal-api Vaquill AI US Session Laws API is one of 26 APIs that [Vaquill AI](https://apis.io/providers/vaquill-ai/) publishes on the [APIs.io](https://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. 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 merged The reverse link, from a code section to the acts a publisher's own tables list against it, is `GET /us/statutes/section/{actId}/enactments`. ## Operations (6) | Method | Path | Summary | |---|---|---| | GET | `/api/v1/us/session-laws/changes` | Feed of changes to the session-law registry | | POST | `/api/v1/us/session-laws/batch` | Get many state session laws at once, by id or citation | | POST | `/api/v1/us/session-laws/search` | Search the text of state session laws | | GET | `/api/v1/us/session-laws/list` | List a state's session laws | | GET | `/api/v1/us/session-laws/{session_law_id}/body` | Get a state session law's text | | GET | `/api/v1/us/session-laws/{session_law_id}` | Get a state session law, by id or by citation | ## Machine-readable artifacts (27) - **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/openapi/vaquill-ai-us-session-laws-api-openapi.yml - **Documentation** — https://www.vaquill.ai/docs/api-guide/coverage - **APIReference** — https://www.vaquill.ai/docs/api-reference/us-statutes/search-us-statutes-constitutions-court-rules-and-executive-actions - **GettingStarted** — https://www.vaquill.ai/docs/api-guide/quickstart - **ChangeLog** — https://www.vaquill.ai/docs/api-guide/changelog - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-statute-search-request-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-session-law-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-statute-body-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-session-law-body-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-create-watch-request-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-statute-count-request-schema.json - **APIReference** — https://www.vaquill.ai/docs/api-reference/india-pricing/get-india-api-credit-pricing - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-act-search-request-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-act-status-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-external-credit-balance-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-act-cited-by-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-act-text-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-act-subordinate-response-schema.json - **Documentation** — https://www.vaquill.ai/docs/workspace-api/overview - **APIReference** — https://www.vaquill.ai/docs/api-reference/chronology/list-chronology-events - **GettingStarted** — https://www.vaquill.ai/docs/workspace-api/quickstart - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-review-create-request-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-review-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-nda-triage-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-ask-request-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-matter-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/vaquill-ai/refs/heads/main/json-schema/vaquill-ai-compliance-check-schema.json ## Other Vaquill AI APIs (12) - [Vaquill AI Board Watches API](https://apis.io/apis/vaquill-ai/vaquill-ai-board-watches-api/) - [Vaquill AI Chronology API](https://apis.io/apis/vaquill-ai/vaquill-ai-chronology-api/) - [Vaquill AI Clients API](https://apis.io/apis/vaquill-ai/vaquill-ai-clients-api/) - [Vaquill AI Comparisons API](https://apis.io/apis/vaquill-ai/vaquill-ai-comparisons-api/) - [Vaquill AI Compliance API](https://apis.io/apis/vaquill-ai/vaquill-ai-compliance-api/) - [Vaquill AI Credits API](https://apis.io/apis/vaquill-ai/vaquill-ai-credits-api/) - [Vaquill AI Documents API](https://apis.io/apis/vaquill-ai/vaquill-ai-documents-api/) - [Vaquill AI Drafting API](https://apis.io/apis/vaquill-ai/vaquill-ai-drafting-api/) - [Vaquill AI Facts API](https://apis.io/apis/vaquill-ai/vaquill-ai-facts-api/) - [Vaquill AI Folders API](https://apis.io/apis/vaquill-ai/vaquill-ai-folders-api/) - [Vaquill AI India Credits API](https://apis.io/apis/vaquill-ai/vaquill-ai-india-credits-api/) - [Vaquill AI India Pricing API](https://apis.io/apis/vaquill-ai/vaquill-ai-india-pricing-api/) ## Tags US Session Laws --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/vaquill-ai/vaquill-ai-us-session-laws-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/vaquill-ai/.