In 529 AD, Justinian compiled the law of the Roman Empire. We're doing it for America.
Corpus is compiling federal, state, and city law into one searchable, cited, plain-English body — free for anyone to read. The work is funded by Belisarius, our AI agent that forms LLCs for founders at one flat, honest price.
Most states land between $250 and $350 all-in — your exact price appears in the chat before you enter anything else.
Or just search the law — free, no account →
Named for the last time someone compiled all the law.
By the 6th century, Roman law was a thousand-year sediment of overlapping edicts nobody could search. Emperor Justinian had it compiled into one authoritative body — the Corpus Juris Civilis. Every name on this site comes from that project.
Justinian's jurists compiled and indexed the empire's law into one searchable body. Corpus does the same for American law — federal, state, and local code, in one place.
Three centuries later, the Basilika translated that body out of elite Latin into the Greek that people actually spoke. Our plain-English mode does the same job for legalese — toggle any provision.
Justinian's greatest general executed the empire's will in the field. Ours is the AI agent that acts on the law for you — preparing, filing, and delivering your formation. Meet him below.
The library is free. The agent pays for it.
Corpus has two faces. One is a public law library — search it, browse it, ask it questions and get answers with citations, no account required. The other is Belisarius, a formation agent founders pay one flat price to form their LLC. Every dollar the agent earns goes into growing the library.
Federal, state, and city law — searchable, browsable, and askable with citations via Ask Corpus, plus a developer API and MCP server. Free stays free.
Belisarius forms LLCs at one flat, all-in price, with a human approving every filing. That revenue — not ads, not selling data — is the entire business model.
Formation revenue pays for records fees, scanning, and ingestion. Every city code the library gains makes the agent's local-law answers sharper — which funds the next city.
Belisarius — Autonomous Corporate Counsel
Corpus reads the law. Belisarius acts on it. Tell it what you're starting — LLC or nonprofit — and it handles the formation end-to-end: paperwork, state fees, filing, and your Certificate of Formation delivered. A human approves every irreversible step, so nothing moves without sign-off.
A single Stripe Checkout covers the state filing fee, the registered-agent fee, and our fee. No hidden costs, no surprise invoices later.
The agent prepares your filing and pays the state with a single-use, merchant-locked virtual card — and a human approves before any money moves or anything is submitted.
Belisarius files on the state portal, retrieves your Certificate of Formation, and delivers it with a complete append-only audit trail of every step.
- Non-bypassable human approval on every irreversible step
- Append-only audit ledger of every action
- Single-use, merchant-locked payment cards
One body of law — for the whole country.
Federal code. All 50 states. Every county and municipality. Compiled, de-duplicated, indexed, and rendered into plain English — in one platform. Philadelphia, MS is the first proof the method works; the campaign is spreading state by state — and every formation on this page bankrolls it.
A zoning map is just shapes — until each polygon cites the statute that governs it.
Corpus pulls a city's official GIS parcel layer, dissolves it into zoning districts, then joins every district to the real legal provision that defines it — so clicking a block opens the exact section of municipal code that controls it. This is the GIS layer: law and map, joined.
The Transparency Gap
State law requires municipalities to make their codes publicly available. Some don't. Corpus tracks every public-records request, every missed deadline, every day of non-compliance — accountability with receipts, on a public scoreboard. The Philadelphia fight in the badge up top wasn't a one-off; it was the prototype.
We crowdfund the copy fees — then publish the code free.
Some cities never put their code online, and answer a records request with a fee estimate. When that happens, Belisarius opens a public campaign for the city: the fee demanded, the clerk correspondence, and every document received go on the record, and anyone can chip in toward the fee. The moment it's funded, the code is harvested, digitized, and published — free, for everyone, permanently.
Two lists, one launch
Pick the list that fits. For everyone: a single email when Corpus is fully live. For devs: a free alpha API key now — the compiled, plain-English law as structured data. Read the API docs →
Get notified when Corpus goes live
We'll email you when the full product is 100% live — new jurisdictions, the public API, and the formation flow. No spam, unsubscribe anytime.
Get a free alpha API key
Request a free alpha API key — 500 credits, search / node / browse / GIS scopes, valid 60 days. No credit card. We review requests manually; once approved, sign in and your key will be waiting on your Settings page.