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CiteGuard is an API-first citation verification service that validates legal citations against authoritative federal sources, verified against eCFR.gov to prevent hallucinations in AI systems. It combines regex-based, millisecond verification of explicit citations with AI-powered extraction for implied references, delivered via a simple REST API and augmented by usage analytics and enterprise features like audit logs and webhooks. Pricing scales from a free trial to enterprise plans, and it integrates with legal AI assistants, compliance tools, document automation, and legal research workflows.
AI named CiteGuard in December 2025.