Dev Tools · 1h ago
Open-Source MCP Server Verifies Claims With 100% Accuracy on Numeric Data
footnote-mcp is a Python MCP server that verifies claims against web sources using a five-tier fetch ladder and heuristic or LLM-based analysis. On numeric and factual claims, it achieves 100% accuracy; overall accuracy including semantic cases is 83%. The tool supports multiple search backends, structured data parsing, and headless browser automation.
Meridian48 take
While the benchmark is small (n=18), the approach of combining heuristic and local LLM verification is pragmatic for developers building fact-checking tools.
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Building an MCP Server That Verifies Its Sources: Inside footnote-mcp →
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