- FOFASource searches FOFA API with base64-encoded queries (email+key auth) - NetlasSource searches Netlas API with X-API-Key header auth - BinaryEdgeSource searches BinaryEdge API with X-Key header auth - All three implement recon.ReconSource with shared Client retry/backoff Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>