Previous value: -"Abstract text."New value: +"The preprint's current abstract, present on the latest revision only: api.biorxiv.org keeps one abstract per preprint and repeats it on every revision. For an earlier revision's own abstract, read that revision with biorxiv_get_fulltext and its version input; medRxiv blocks its article pages to some hosts, and there that request fails as fulltext_unavailable."

Previous value: -"Source server (biorxiv or medrxiv)."New value: +"Server the revision was found on — accepted as the server input of every tool."

Added value: +[
+  "biorxiv",
+  "medrxiv"
+]

Previous value: -[
-  "doi"
-]New value: +[
+  "doi",
+  "server"
+]

Previous value: -"One or more preprint DOIs to look up (max 10)."New value: +"Preprint DOIs to look up, up to 200 entries. The first 10 distinct DOIs are looked up; the rest are returned in unprocessed."

Previous value: -10New value: +200

Previous value: -[
-  {
-    "not": {
-      "required": [
-        "error"
-      ]
-    },
-    "required": [
-      "preprints",
-      "failed"
-    ]
-  },
-  {
-    "required": [
-      "error"
-    ]
-  }
-]New value: +[
+  {
+    "not": {
+      "required": [
+        "error"
+      ]
+    },
+    "required": [
+      "preprints",
+      "failed",
+      "unprocessed"
+    ]
+  },
+  {
+    "required": [
+      "error"
+    ]
+  }
+]

Added value: +{
+  "description": "The most distinct DOIs one call looks up.",
+  "type": "number"
+}

Previous value: -"Machine-readable failure mode. Declared by this tool: `doi_not_found`: ALL requested DOIs resolve to empty collections on all requested servers, with every server answering. `invalid_doi_format`: Every input DOI fails to match the 10.NNNN/ pattern, even after URL, doi:, and suffix stripping. `upstream_unavailable`: No DOI resolved and at least one lookup failed against api.biorxiv.org, so absence could not be established for any requested DOI. `rate_limited`: No DOI resolved and at least one lookup was rejected with HTTP 429 by api.biorxiv.org. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `doi_not_found`: Every DOI looked up resolves to empty collections on all requested servers, with every server answering, and no DOI was left in unprocessed. `invalid_doi_format`: Every input entry fails to match the 10.NNNN/ pattern, even after URL, doi:, and suffix stripping. `upstream_unavailable`: No DOI resolved, none was left in unprocessed, and at least one lookup failed against api.biorxiv.org, so absence could not be established for any requested DOI. `rate_limited`: No DOI resolved, none was left in unprocessed, and at least one lookup was rejected with HTTP 429 by api.biorxiv.org. Other values are possible when a failure originates below the handler."

Added value: +{
+  "description": "How to look up the DOIs left in unprocessed, and how many failed[] entries are retryable alongside them.",
+  "type": "string"
+}

Added value: +{
+  "description": "Distinct DOIs looked up in this call.",
+  "type": "number"
+}

Added value: +{
+  "description": "True when DOIs past the first 10 were left in unprocessed.",
+  "type": "boolean"
+}

Added value: +{
+  "description": "Valid, distinct DOIs past the first 10, in input order — not looked up, so neither found nor failed. Pass this list as dois in another call to continue. Empty when every DOI was looked up.",
+  "items": {
+    "description": "A bare DOI that was not looked up.",
+    "type": "string"
+  },
+  "type": "array"
+}

Added value: +{
+  "description": "Grant award numbers from the funding statement, verbatim and deduplicated — one value can hold several grants run together without a separator. Absent when none. Funder names are not included: api.biorxiv.org attributes them to unrelated organizations.",
+  "items": {
+    "description": "One award value as upstream records it.",
+    "type": "string"
+  },
+  "type": "array"
+}

Removed value: -{
-  "description": "Funder information.",
-  "type": "string"
-}

Previous value: -"Preprint DOI (e.g. 10.1101/2024.01.15.575123 or 10.64898/2026.05.07.723463)."New value: +"Preprint DOI (e.g. 10.1101/2024.01.15.575123 or 10.64898/2026.05.07.723463). A doi.org or biorxiv.org/medrxiv.org article URL, a doi: prefix, or a vN / .full suffix is accepted and stripped to the bare DOI; every revision is returned either way."

Previous value: -"Machine-readable failure mode. Declared by this tool: `doi_not_found`: ALL requested DOIs resolve to empty collections on all requested servers, with every server answering. `invalid_doi_format`: One or more input DOIs do not match the 10.NNNN/ pattern. `upstream_unavailable`: No DOI resolved and at least one lookup failed against api.biorxiv.org, so absence could not be established for any requested DOI. `rate_limited`: No DOI resolved and at least one lookup was rejected with HTTP 429 by api.biorxiv.org. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `doi_not_found`: ALL requested DOIs resolve to empty collections on all requested servers, with every server answering. `invalid_doi_format`: Every input DOI fails to match the 10.NNNN/ pattern, even after URL, doi:, and suffix stripping. `upstream_unavailable`: No DOI resolved and at least one lookup failed against api.biorxiv.org, so absence could not be established for any requested DOI. `rate_limited`: No DOI resolved and at least one lookup was rejected with HTTP 429 by api.biorxiv.org. Other values are possible when a failure originates below the handler."

Previous value: -"DOI that failed to resolve."New value: +"DOI that failed to resolve — in bare form, or exactly as sent for invalid_doi_format."

Previous value: -"The requested DOI."New value: +"The requested DOI in bare form (any URL, doi: prefix, or suffix removed)."