What does the Grounding API verify?
The Grounding API checks marketing claims against Lighthouse evidence-graded statistics and returns verified, corrected, or disputed verdicts with provenance citations.
The Grounding API turns a marketing claim into a checked verdict, corrected value, and citation-ready provenance trail.
Real-time Verification
Submit text and get instant verdicts on every numeric claim it contains.
Provenance Citations
Every verdict includes the source stat, original data source, and confidence score.
Correction Suggestions
When a claim is wrong, get the correct value with the verified source.
Bulk API
Process entire articles or campaigns programmatically via the REST API.