Science & Math — entry 010 of 28
ITIS
The Integrated Taxonomic Information System is a U.S. government REST/SOAP web service for authoritative scientific and common names, currently covering 993,000+ scientific names (678,000+ of them accepted) and 166,000+ common names for organisms found in North America and beyond. Both JSON and XML responses are available keylessly, and since it's a public-domain federal database there's no registration or usage fee.
AuthenticationNone requiredCall it straight away — no key, no signup.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSON, XMLResponses can be requested as JSON or XML.
GreatAPIs Score
Score80
Authentication25/25No authentication required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats15/15Supports 2 response formats
Freshness20/20Verified within 6 months
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- No key needed — call it now.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.