Record Join Reconciliation

Joins two supplied record lists by exact reference and flags unmatched references or differing labels and values. Rejects duplicate join keys. Values must have the same meaning and unit in both lists. Uses explicitly supplied structured inputs. Server computations are transient; the standalone website computes locally in your browser. Review the output before exporting it. No persistent account records, external source retrieval, sending, transactions or paid model calls. CSV/JSON review and export are available on the standalone website. MCP requests are capped at 128 KiB and computed responses at 256 KiB; individual field and record limits also apply.