Home / BuiltWith API / BuiltWith API Error Codes

BuiltWith API Error Codes
ErrorCode
-1Not a supported return type - api.json is general call scheme.
-2API Key is wrong - it needs to be a Guid.
-3You've run out of API Credits.
-4Technology endpoint technology name not found (maybe misspelled or esacped wrong).
-5Plan upgrade needed as maximum technologies reached.
-6Error saving technology usage.
-7Only one lookup at a time for this endpoint.
-8Invalid root domain name or unsupported.
-99Internal code error - contact us if this keeps happening.

BuiltWith® Pty Ltd - © 2025 -ABN 53 167 706 470 - 35th Floor, One International Towers, 100 Barangaroo Avenue, Sydney, NSW 2000, Australia