lookup

Pay-per-call legal and financial data for AI agents. No accounts. No API keys. No subscriptions. Each request settles in USDC via x402.

How it works

Call any endpoint. Server replies 402 Payment Required with payment details. Your x402 wallet pays. Retry with X-PAYMENT header. Get JSON.

Endpoints

Legal — backed by CourtListener

Path	Price	What it does
`/legal/cases/search?q=`	$0.10	Search US court opinions.
`/legal/cases/get?id=`	$0.05	Fetch a specific opinion.
`/legal/citations?case_id=`	$0.50	Citation graph: cites + cited-by.
`/legal/courts`	$0.02	List of indexed courts.
`/legal/dockets/search?q=`	$0.15	Search PACER dockets.
`/legal/judges/search?q=`	$0.05	Search judges by name.
`/legal/judges/get?id=`	$0.05	Fetch a judge's full profile.
`/legal/citation-lookup?citation=`	$0.10	Resolve a citation string to a case.

Financial — backed by SEC EDGAR

Path	Price	What it does
`/financial/companies/search?q=`	$0.05	Find SEC issuers by ticker or name.
`/financial/filings?cik=`	$0.10	List filings for a company.
`/financial/facts?cik=`	$0.25	XBRL facts (revenue, EPS, etc.).
`/financial/filing?accession=&cik=`	$0.20	Specific filing manifest.
`/financial/filings/recent?type=`	$0.10	Most recent filings of a form type.
`/financial/insider-trades/recent`	$0.15	Form 4 insider trade stream.
`/financial/8k/recent`	$0.10	Most recent 8-K material events.
`/financial/concepts/search?q=`	$0.05	Search GAAP concept names.
`/financial/frames?concept=&period=`	$0.30	Cross-issuer peer comparison.
`/financial/mutual-funds/search?q=`	$0.05	Search mutual funds and ETFs.

Economics — Treasury + BLS

Path	Price	What it does
`/economics/treasury/rates/daily`	$0.05	US Treasury security average rates.
`/economics/treasury/debt`	$0.05	Federal debt to the penny, daily.
`/economics/treasury/auctions/recent`	$0.10	Recent Treasury auction results.
`/economics/bls/cpi`	$0.05	US Consumer Price Index time series.
`/economics/bls/unemployment`	$0.05	US unemployment rate time series.

Patents — USPTO PatentsView

Path	Price	What it does
`/patents/search?q=`	$0.10	Search US patents by title.
`/patents/get?id=`	$0.10	Fetch full patent detail.
`/patents/citations?id=`	$0.30	Patent citation graph.
`/patents/inventors/search?q=`	$0.05	Search inventors.
`/patents/assignees/search?q=`	$0.05	Search assignees (organizations).

Government — Federal Register + FDA

Path	Price	What it does
`/gov/federal-register/search?q=`	$0.10	Search rules, EOs, agency notices.
`/gov/federal-register/recent`	$0.05	Most recent Federal Register docs.
`/gov/fda/drugs/search?q=`	$0.10	Search FDA-approved drugs.
`/gov/fda/drugs/recalls`	$0.10	FDA drug recall enforcement.
`/gov/fda/adverse-events?drug=`	$0.15	FDA adverse-event reports for a drug.
`/gov/fda/devices/recalls`	$0.10	FDA medical device recalls.

Discovery

/.well-known/x402.json — full machine-readable manifest
/openapi.yaml — OpenAPI 3.1 spec with x402 pricing extensions
/mcp — Streamable HTTP MCP server endpoint (JSON-RPC POST)

For humans

If you don't have an x402 wallet, this is not the easiest interface yet. We're built for agents first. If you want a human-friendly version, email contact@example.com.