Investigation and Discovery Phases Complete.

2026-06-25 16:45:22 +08:00
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+# V1_ISIN_DATA_URL
+
+- **URL:** https://links.sgx.com/1.0.0/isin
+- **Status:** 404
+- **Classification:** BLOCKED
+- **Content-Type:** text/html
+- **Content-Length:** 1245 bytes
+- **Elapsed:** 0.0 s
+- **Probed at:** 2026-06-24T09:41:41.972522+00:00
+
+- **Error:** HTTPError: HTTP Error 404: Not Found
+
+- **Block reasons:** HTTP 404, unexpected HTML for API endpoint
+## Notes
+
+Base path `https://links.sgx.com/1.0.0/isin` returns HTTP 404.
+
+- This is a document-delivery layer with no observed public bulk consumer.
+- ISIN/security master data is better obtained from `METADATA_API_URL` or `V1_SECURITIES_CPFIS_LIST_URL`.