Boring API · available
Compares two supplier price lists (old vs. new) per SKU: the real unit price change after normalising price, currency, pack size and price basis, new and removed items, availability changes, across-the-board increases with outliers, review priority per finding and optional cost impact from an annual demand file.
curl -F old_file=@old.xlsx -F new_file=@new.xlsx https://api.relaex-engineers.de/v1/supplier/compareInput: CSV, XLSX, DATANORM 4/5 or text-based PDF; multipart old_file, new_file, optional usage_file and options (JSON). Column headers and common cell words are recognised in English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Turkish, Swedish, Danish, Norwegian, Finnish, Korean, Japanese and Chinese; numbers in both 1.234,56 and 1,234.56 style; any ISO 4217 currency (no conversion).
Limits: 20 MiB per file, 250,000 rows, 60 s; JSON or XLSX report.
MCP tool supplier_compare over Streamable HTTP at https://api.relaex-engineers.de/mcp
(no authentication). In Claude Code: claude mcp add --transport http boring https://api.relaex-engineers.de/mcp. In Claude.ai, ChatGPT and other
clients add the same URL as a custom connector. OpenAPI-based frameworks use
/openapi.json.
Responses are in English; error, warning and rule codes are language-neutral so your assistant can explain them in your language. Column headers and common cell words are recognised in English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Turkish, Swedish, Danish, Norwegian, Finnish, Korean, Japanese and Chinese; numbers in both 1.234,56 and 1,234.56 style; any ISO 4217 currency (no conversion).
Open with a rate limit per IP and session. An X-API-Key raises the limit and
unlocks GET /v1/usage/me. Files are processed in memory and never stored.