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deepxiv-fa-us-law

Search ~5M US legal provisions: federal and state statutes, regulations (CFR), session laws, agency decisions, guidance. Use when a task needs the text of a US law or rule, or obligations and penalties under it.

skills/deepxiv-fa-us-law/SKILL.md

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# DeepXiv · US Law (`us_law`)

~5M clause-level US legal provisions across 53 jurisdictions (synced daily since 10-15 as new eCFR and other text arrives; exact count in corpus). The open_us_law v2026.08 base: 2.12M statutes, 1.95M regulations (including CFR annual editions), 425k session laws, 258k agency decisions, 77k proposed regulations, 77k guidance documents, 53k court rules, 13k constitutional provisions. English and Chinese summaries, norm types, regulated parties, subjects, defined terms, penalties, deadlines and cross-references are extracted per provision (citations and figures checked against the text).

Corpus: 5,195,942 documents, updated 2026-08.

## Setup

```bash
pip install -U deepxiv-sdk      # deepxiv registers a token on first use
```

With a registered key (https://data.rag.ac.cn/register), `search` and `read` are fair use: 60/min, 5 at once, 5,000/day; on the auto-registered token they spend the deepxiv daily limit at the credits listed below. `ask` draws on the daily ask allowance (resets 00:00 UTC; a site-wide daily total can run out early at peak times), or 3 lifetime trial asks on the auto-registered token. On 429, back off for `Retry-After` seconds. Data goes to stdout; cost, quota and sources go to stderr. Exit 0 ok, 1 API error, 2 usage error. The general CLI guide is the `deepxiv-cli` skill.