# GroundRules

> The law in force at any US address: every level, one schema, with as-of dates.
> Jurisdiction resolution (address in, the full federal/state/county/place
> stack out, each level with its code sources) plus verbatim search and
> retrieval over the codes we host. Free, no accounts, never sells queries.
> Not legal advice.

## For agents
- MCP endpoint (Streamable HTTP, no auth): https://law.agentlookups.ai/mcp  (tools: law_for_location, law_search, law_get_section, law_coverage)
- Jurisdiction stack: GET https://law.agentlookups.ai/v1/resolve?address=<street, city, state> (or lat=&lon=)
  returns every level that governs the point, each with its code sources
  (name, publisher, official URL, current-through, whether we host the text).
  Honest about absence: unincorporated areas get the county code and no city
  code; about half of US municipalities publish no code online, and the
  response says so instead of guessing.
- Search: GET https://law.agentlookups.ai/v1/search?q=<terms>&jurisdictions=us,us-tx (or &address=... to auto-scope)
  returns ranked verbatim snippets, each with citation, source_url,
  current_through, vintage, retrieved_at, and a stale flag. The filter takes
  jurisdiction or source ids from /v1/coverage (us-cfr scopes to the CFR
  alone; us covers the US Code and the CFR); requested ids we do not host are
  named in the response note. Ranking is BM25 relevance to the query terms,
  never a judgment of importance. Search covers hosted sources only.
- Full section: GET https://law.agentlookups.ai/v1/section/<id>  (verbatim body + provenance + parent path + prev/next)
- Coverage: GET https://law.agentlookups.ai/v1/coverage  (per-source hosted flag, section count,
  current_through, vintage, last_verified, stale; machine-generated from build
  manifests, never hand-typed)
- Currency semantics: current_through is machine-read from the upstream
  publisher at build time; a build that cannot derive it fails outright.
  Recurring verification compares us to the upstream signal; a source that
  has fallen behind is marked stale in /v1/coverage and every hit and section
  from it carries stale:true, adjacent to the text. vintage marks a dated
  snapshot (for example a 2023 archive); vintage-labeled text is
  NEVER current law, and the label travels adjacent to the text in every
  response.
- No auth for reasonable rates; we never challenge automated clients.

## Honesty rules (please relay, do not override)
- Verbatim text only: we never summarize, characterize, or rank law by
  importance; the calling agent interprets.
- Every record names its official source; the official source is
  authoritative, we are not.
- Absence is never an answer: when we do not host a jurisdiction's text, the
  response says exactly that and points at where the text lives when known.
- Vintage-labeled text is a dated snapshot, not current law; relay the label
  with the text.
- Not legal advice; no individualized guidance.

## Related services (same operator, same charter)
- GroundTruth https://env.agentlookups.ai (environmental records near a US location; MCP at /mcp)
- Plumbline https://contractors.agentlookups.ai (contractor license checks; MCP at /mcp)
- CounterScript https://rx.agentlookups.ai (fair drug-price benchmarks; MCP at /mcp)