[00/Katzilla Studio]live

Every US government dataset. One API. Every response cited.

One key wraps SEC, FDA, Congress, NOAA, Census, FRED, court opinions, clinical trials, and 27+ more agent-ready categories. Every response ships with a machine-readable citation — source, license, retrieved-at, content hash.

// live185,996requests / 30d
// 30-second quickstart
$ curl https://api.katzilla.dev/agents/health/actions/fda-recalls \
    -H "X-API-Key: kz_..." \
    -d '{"classification":"Class I","_limit":1}'

{
  "data": {
    "recalls": [{
      "recall_number": "D-0412-2026",
      "product": "Metformin HCl 500 mg ER",
      "classification": "Class I",
      "reason": "NDMA impurity above ICH limit"
    }]
  },
  "citation": {
    "source_name": "openFDA",
    "license": "CC0",
    "retrieved_at": "2026-04-23T14:08Z",
    "data_hash": "sha256:9c4e…"
  }
}
217+ actions·283,033 validated · +133,670 searchable·27 categories·tool-use ready
[00.5/Primary sources]

Agencies, statistics offices, courts, and national open-data portals — not aggregators, not scraped blogs.

NASA
USGS
NOAA
Census Bureau
FRED
BLS
BEA
U.S. Treasury
SEC
FBI
FEMA
CDC
FDA
NIH
EPA
Congress
GovInfo
Regulations.gov
Federal Register
SAM.gov
USPTO
NREL
HUD
USDA
NPS
GSA
NASA
USGS
NOAA
Census Bureau
FRED
BLS
BEA
U.S. Treasury
SEC
FBI
FEMA
CDC
FDA
NIH
EPA
Congress
GovInfo
Regulations.gov
Federal Register
SAM.gov
USPTO
NREL
HUD
USDA
NPS
GSA
FEC
FCC
DOL
NHTSA
CPSC
FTC
CFPB
CourtListener
Library of Congress
Smithsonian
Space-Track
College Scorecard
World Bank
IMF
WTO
WHO
OECD
Eurostat
ECB
data.gov.uk
data.gouv.fr
govdata.de
dati.gov.it
data.gov.au
open.canada.ca
FEC
FCC
DOL
NHTSA
CPSC
FTC
CFPB
CourtListener
Library of Congress
Smithsonian
Space-Track
College Scorecard
World Bank
IMF
WTO
WHO
OECD
Eurostat
ECB
data.gov.uk
data.gouv.fr
govdata.de
dati.gov.it
data.gov.au
open.canada.ca
30+ U.S. federal agencies·7 international bodies·15+ national open-data portals
[02/The thesis]

AI agents are only as trustworthy as their sources.

When an agent answers a legal question, a regulatory question, a clinical question — the user doesn't want a fluent-sounding hallucination. They want the primary source. Government data — SEC filings, Federal Register notices, FDA recalls, NIH clinical trials, Congressional records, court opinions, BLS labor stats — is the most authoritative, public-domain, citable corpus on earth. And it's almost entirely absent from how agents are wired today.

We wrap it. All of it. Behind one API key, structured for tool-use, with citation metadata baked into every response. So when your agent says something important, it can prove where the answer came from.

Around the API we ship the surround tooling agents need in production — Scrape for pages behind HTML, Signal for monitors + curated editorial digests, Ask for ad-hoc natural-language queries. Each optional, each colored its own way.

[03/Built for]

Agents where being wrong is expensive.

Legal research agentsClinical decision agentsCompliance copilotsFinancial filings agentsJournalism agentsPolicy copilotsPublic health agentsEnvironmental monitoring agents
[04/Start here]

Every AI agent that tells you something important
should be able to prove it.