Get Compound Cross-References

Previous value: -9007199254740991New value: +2147483647

Previous value: -"Max IDs to return per xref type per page (1-500). A compound may have thousands of PubMed references; use offset to reach the ones past this page. Total count always reported. Default: 50."New value: +"Max IDs to return per xref type per page. The per-call cap is 500: a larger value (up to 1000) returns 500 per type and is reported in cappedInputs. A compound may have thousands of PubMed references; use offset to reach the ones past this page. Total count always reported. Default: 50."

Previous value: -500New value: +1000

Added value: +{
+  "description": "Inputs that asked for more than their per-call cap, with the value requested and the value served. An ID batch lists the IDs past the cap in unprocessed. Omitted when every input was within its cap.",
+  "items": {
+    "additionalProperties": false,
+    "description": "One input served at its per-call cap.",
+    "properties": {
+      "input": {
+        "description": "Input name, e.g. \"maxResults\" or \"cids\".",
+        "type": "string"
+      },
+      "requested": {
+        "description": "Value requested: the page size, or the number of IDs in the batch.",
+        "type": "number"
+      },
+      "served": {
+        "description": "Value served: the per-call cap.",
+        "type": "number"
+      },
+      "unprocessed": {
+        "description": "ID batches only: IDs past the cap, listed in unprocessed in input order.",
+        "type": "number"
+      }
+    },
+    "required": [
+      "input",
+      "requested",
+      "served"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

Previous value: -"Cross-reference IDs on this page (window of offset + maxPerType)."New value: +"Cross-reference IDs on this page (window of offset + maxPerType). PubMedID is sorted numerically descending, so page one holds the highest, most recently assigned PMIDs; GeneID, ProteinGI and TaxonomyID numerically ascending; RegistryID, RN and PatentID keep PubChem's order."

Removed value: -0

Added value: +1

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +false

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Added value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "cid",
+      "xrefs",
+      "offset",
+      "truncated"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "additionalProperties": {},
+  "description": "Present when the call failed. Absent on success.",
+  "properties": {
+    "code": {
+      "description": "JSON-RPC error code for this failure.",
+      "maximum": 9007199254740991,
+      "minimum": -9007199254740991,
+      "type": "integer"
+    },
+    "data": {
+      "additionalProperties": {},
+      "properties": {
+        "reason": {
+          "description": "Machine-readable failure mode.",
+          "type": "string"
+        },
+        "recovery": {
+          "additionalProperties": {},
+          "description": "Actionable next step for the caller.",
+          "properties": {
+            "hint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "hint"
+          ],
+          "type": "object"
+        },
+        "retryable": {
+          "description": "Whether retrying may succeed.",
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "message": {
+      "description": "Human-readable description of what went wrong.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "code",
+    "message"
+  ],
+  "type": "object"
+}

Added value: +{
+  "description": "True when at least one requested type has IDs remaining past this page. Which types, and how many IDs each holds in total, is in xrefs[].truncated / xrefs[].totalAvailable.",
+  "type": "boolean"
+}

Removed value: -[
-  "cid",
-  "xrefs",
-  "offset"
-]

Previous value: -"Max IDs to return per xref type (1-500). A compound may have thousands of PubMed references. Total count always reported. Default: 50."New value: +"Max IDs to return per xref type per page (1-500). A compound may have thousands of PubMed references; use offset to reach the ones past this page. Total count always reported. Default: 50."

Previous value: -"number"New value: +"integer"

Added value: +{
+  "default": 0,
+  "description": "Zero-based index of the first ID to return within each xref type. The same offset is applied to every requested type. Pass the nextOffset from a previous call to read the following page. Default: 0.",
+  "maximum": 9007199254740991,
+  "minimum": 0,
+  "type": "integer"
+}

Added value: +{
+  "description": "Offset to pass on the next call to continue past this page. Omitted when no requested type has further IDs.",
+  "type": "number"
+}

Previous value: -"Recovery guidance when every requested xref type returned zero IDs — hints to verify the CID. Absent when any cross-references were found."New value: +"Recovery guidance when every requested xref type returned zero IDs, when the offset runs past every type, or when further pages remain. Absent when this page is complete and non-empty."

Added value: +{
+  "description": "Zero-based index of the first ID returned within each type.",
+  "type": "number"
+}

Previous value: -"Cross-reference IDs (capped by maxPerType)."New value: +"Cross-reference IDs on this page (window of offset + maxPerType)."

Previous value: -"Total IDs available before truncation."New value: +"Total IDs available for this type, across all pages."

Previous value: -"Whether results were truncated."New value: +"True when IDs for this type remain past the current page."

Previous value: -[
-  "cid",
-  "xrefs"
-]New value: +[
+  "cid",
+  "xrefs",
+  "offset"
+]

Added value: +{
+  "description": "Recovery guidance when every requested xref type returned zero IDs — hints to verify the CID. Absent when any cross-references were found.",
+  "type": "string"
+}

Previous value: -"PubChem Compound ID."New value: +"PubChem Compound ID. Resolve from name/SMILES with pubchem_search_compounds."

Previous value: -"Max IDs to return per xref type (1-500). A compound may have thousands of PubMed references — this cap prevents bloat. Total count always reported. Default: 50."New value: +"Max IDs to return per xref type (1-500). A compound may have thousands of PubMed references. Total count always reported. Default: 50."

Previous value: -"Cross-reference types to retrieve. Options: RegistryID, RN (CAS numbers), PubMedID, PatentID, GeneID, ProteinGI, TaxonomyID."New value: +"Cross-reference types to retrieve. String IDs: RegistryID (DSSTox/EPA registry numbers), RN (CAS numbers), PatentID. Numeric IDs: PubMedID, GeneID (NCBI Gene), ProteinGI (legacy NCBI Protein GI), TaxonomyID."

Added value: +"Cross-reference group for one type."

Previous value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "number"
-  }
-]New value: +[
+  {
+    "description": "String-form cross-reference ID (e.g. CAS number, patent).",
+    "type": "string"
+  },
+  {
+    "description": "Numeric cross-reference ID (e.g. PubMed ID, Gene ID).",
+    "type": "number"
+  }
+]

Added value: +"Cross-reference identifier — string or number depending on type."

Previous value: -"Cross-reference type."New value: +"Cross-reference type: RegistryID, RN, PubMedID, PatentID, GeneID, ProteinGI, or TaxonomyID."