Don’t trust — verify.
Every claim Corpus makes is checkable in a single call. Below are three commands you can paste into a terminal right now — no API key required — against the live server. You should get the same coverage counts, the same real citations, and the same formation checklist shown here. (An AI agent verifies the identical way, over the same MCP endpoint.)
These are anonymous, free tool calls (rate-limited per IP). jq just extracts the human-readable text from the JSON-RPC response — drop the | jq … to see the raw envelope. The coverage block below is live — generated from the same source list_coverage serves, refreshed every few minutes — so your numbers should match it. The search and formation transcripts are captured samples from July 17, 2026; law text and the requirements checklist are stable, but re-run them and see.
1. Coverage is real — and honest about gaps
list_coverage reports exactly what is ingested and searchable. Placeholders are labeled, not hidden — an unverifiable claim would teach you to distrust the rest.
curl -s https://corpuslaw.us/api/mcp \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call",
"params":{"name":"list_coverage","arguments":{}}}' \
| jq -r '.result.content[0].text'Corpus covers 18 jurisdictions (16 fully searchable), 551,201 provisions, and
879,302 searchable chunks (8 with published GIS). Rows flagged PLACEHOLDER
are listed but not yet searchable — an empty search there is expected.
- CA — California (state): 160,931 provisions, 207,567 searchable chunks
- US — United States (federal): 154,667 provisions, 305,942 searchable chunks
- TX — Texas (state): 119,923 provisions, 135,058 searchable chunks
- WA — Washington (state): 51,487 provisions, 109,860 searchable chunks
- MS — Mississippi (state): 25,288 provisions, 37,205 searchable chunks
… (full list continues)2. Every result carries a citation you can check
search_law returns ranked provisions with verbatim citations. Look one up with get_law_node (pass the returned node id) to read the full official text — no fabricated law.
curl -s https://corpuslaw.us/api/mcp \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":2,"method":"tools/call",
"params":{"name":"search_law",
"arguments":{"query":"alcohol permit","jurisdiction":"MS"}}}' \
| jq -r '.result.content[0].text'8 of 190 results for "alcohol permit" in MS (hybrid):
1. Miss. Code Ann. § 67-1-51 — Permits; distance regulations; prohibition on
ownership of more than one package retailer's permit; …
Mississippi · MCA
Such permit shall authorize the holder of the permit to import and purchase
limited amounts of alcoholic beverages … Alcohol processing permit. …3. Formation is a real, free intake — not a lead form
formation_requirements returns the exact field checklist and quirks for the state. Your agent collects the answers, hands off a complete draft, and your user pays only at the end. Formation tools are never metered.
curl -s https://corpuslaw.us/api/mcp \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":3,"method":"tools/call",
"params":{"name":"formation_requirements",
"arguments":{"state":"MS","entityType":"llc"}}}' \
| jq -r '.result.content[0].text'Formation requirements — LLC in MS (US-MS):
REQUIRED (collect ALL of these from your user, in conversation):
- proposed business name
- principal office address (street, city, state)
- contact email
- NAICS industry code
- management type (member- or manager-managed)
- at least one member
- an organizer
STATE-SPECIFIC QUESTIONS: none — MS has no extra LLC fields beyond the baseline.
EIN ADD-ON (optional, $75.00): the federal tax ID … NEVER ask for a Social Security Number.Same three calls work against any formation MCP — run them side by side. Full tool reference and per-client setup: the MCP server guide.