> ## Documentation Index > Fetch the complete documentation index at: https://vaquill.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # List available codes for a US state > List the distinct statutory codes (Penal, Civil, Health & Safety, ...) ingested for one US state, so you can see what is covered before searching. To search within this state, pass `state` (the 2-letter code) with `corpusType=STATE` to `/statutes/search`. Court rules and state constitutions are listed under the `STATE_RULES` and `STATE_CONSTITUTION` corpora, not here. **Free.** Requires an API key and is rate-limited, but costs no credits. ## OpenAPI ````yaml https://api.vaquill.ai/external/openapi.json get /api/v1/statutes/codes openapi: 3.1.0 info: title: Vaquill Developer API description: >- Public API for legal statutes and legislation. **Authentication**: Pass your API key via the `Authorization: Bearer vq_key_...` header. **Credits**: Each call costs API credits. See `GET /api/v1/api-credits/pricing` for the full pricing matrix. ## Jurisdictions | Jurisdiction | Coverage | `countryCode` | |---|---|---| | **United States** | USC, CFR, nearly all 50 state statutory codes (plus DC and Puerto Rico), state constitutions, and court rules. | `US` | See the full [Coverage page](https://www.vaquill.ai/docs/coverage) for the jurisdiction-by-jurisdiction breakdown, or call `/statutes/states` for live counts. ## Endpoints - **US Statutes**: Search and retrieve USC, CFR, state statutes, constitutions, court rules, executive orders, and regulations with full text - **Pricing**: Credit costs per endpoint (no auth required) ## Rate limits Limits are enforced per API key and scale with your plan. A `429` response includes a `Retry-After` header. | Plan | Per minute | Per hour | Per day | |---|---|---|---| | API ($199/mo, 1x) | 30 | 500 | 2,000 | | API Business ($1,000/mo, 5x) | 150 | 2,500 | 10,000 | For full documentation, visit the [API Reference](https://www.vaquill.ai/docs/api-reference/). version: 1.0.0 contact: name: Vaquill API Support url: https://www.vaquill.ai email: support@vaquill.ai license: name: Proprietary url: https://www.vaquill.ai/terms termsOfService: https://www.vaquill.ai/terms servers: - url: https://api.vaquill.ai description: Production security: - ApiKeyAuth: [] tags: - name: US Statutes description: >- Search and retrieve US statutes. Covers the United States Code (USC), Code of Federal Regulations (CFR), all 50 state statutes, constitutions, court rules, executive orders, Federal Register agency rules, agency guidance, and state regulations. Scope a search with the `corpusType` filter. - **Search**: Search across all USC, CFR, state, and regulatory sections - **Section**: Get metadata, citation, hierarchy, and source links for a specific section - **Body**: Get the full text of a section - name: Pricing description: >- Credit pricing and conversion rates. No authentication required. 1 credit = $0.01 USD. externalDocs: description: Full API Reference url: https://www.vaquill.ai/docs/api-reference/ paths: /api/v1/statutes/codes: get: tags: - US Statutes summary: List available codes for a US state description: >- List the distinct statutory codes (Penal, Civil, Health & Safety, ...) ingested for one US state, so you can see what is covered before searching. To search within this state, pass `state` (the 2-letter code) with `corpusType=STATE` to `/statutes/search`. Court rules and state constitutions are listed under the `STATE_RULES` and `STATE_CONSTITUTION` corpora, not here. **Free.** Requires an API key and is rate-limited, but costs no credits. operationId: list_statutes_codes_api_v1_statutes_codes_get parameters: - name: state in: query required: true schema: type: string title: State responses: '200': description: Codes for the requested state. content: application/json: schema: {} example: data: state: tx stateName: Texas codes: - actId: tx_gv displayLabel: Tex. Government Code sectionCount: 15107 - actId: tx_hs displayLabel: Tex. Health and Safety Code sectionCount: 8876 - actId: tx_pe displayLabel: Tex. Penal Code sectionCount: 261 meta: processingTimeMs: 240 creditsConsumed: 0 '400': description: '`state` query param is missing or invalid.' content: application/json: example: detail: '`state` is required.' schema: $ref: '#/components/schemas/ApiDetailError' '401': description: Invalid or missing API key. content: application/json: schema: $ref: '#/components/schemas/ApiDetailError' '403': description: API key lacks `research:read` scope. content: application/json: schema: $ref: '#/components/schemas/ApiDetailError' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '429': description: Rate limit exceeded. content: application/json: schema: $ref: '#/components/schemas/ApiDetailError' components: schemas: ApiDetailError: properties: detail: type: string title: Detail examples: - Insufficient API credits. type: object required: - detail title: ApiDetailError description: |- Error envelope the API actually returns. All errors (401/402/403/404/422/429/5xx) come back as a single `detail` string (FastAPI default), e.g. `{"detail": "Insufficient API credits."}`. Documenting the real shape so client code can rely on it. HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError securitySchemes: ApiKeyAuth: type: http scheme: bearer bearerFormat: vq_key_* description: >- API key issued from the Vaquill developer dashboard. Pass as `Authorization: Bearer vq_key_...` ````