langfuse · langfuse-bot · Jul 10, 2026
diff --git a/langfuse/api/blob_storage_integrations/types/blob_storage_integration_file_type.py b/langfuse/api/blob_storage_integrations/types/blob_storage_integration_file_type.py
@@ -8,19 +8,27 @@
 
 
 class BlobStorageIntegrationFileType(enum.StrEnum):
+    """
+    File format for exported data. `PARQUET` is a columnar binary format encoded and compressed by the storage engine; gzip compression does not apply to it. Note that the model-price columns (`input_price`, `output_price`, `total_price`) are not included in Parquet observation exports.
+    """
+
     JSON = "JSON"
     CSV = "CSV"
     JSONL = "JSONL"
+    PARQUET = "PARQUET"
 
     def visit(
         self,
         json: typing.Callable[[], T_Result],
         csv: typing.Callable[[], T_Result],
         jsonl: typing.Callable[[], T_Result],
+        parquet: typing.Callable[[], T_Result],
     ) -> T_Result:
         if self is BlobStorageIntegrationFileType.JSON:
             return json()
         if self is BlobStorageIntegrationFileType.CSV:
             return csv()
         if self is BlobStorageIntegrationFileType.JSONL:
             return jsonl()
+        if self is BlobStorageIntegrationFileType.PARQUET:
+            return parquet()
diff --git a/langfuse/api/blob_storage_integrations/types/blob_storage_integration_file_type_response.py b/langfuse/api/blob_storage_integrations/types/blob_storage_integration_file_type_response.py
@@ -9,7 +9,7 @@
 
 class BlobStorageIntegrationFileTypeResponse(enum.StrEnum):
     """
-    File type reported for an existing integration. Includes `PARQUET`, which a project may enable through the Langfuse UI but cannot yet be set via this API (the request `fileType` omits it).
+    File type reported for an existing integration.
     """
 
     JSON = "JSON"

diff --git a/langfuse/api/trace/client.py b/langfuse/api/trace/client.py
@@ -180,7 +180,7 @@ def list(
             ```json
             [
               {
-                "type": string,           // Required. One of: "datetime", "string", "number", "stringOptions", "categoryOptions", "arrayOptions", "stringObject", "numberObject", "boolean", "null"
+                "type": string,           // Required. One of: "datetime", "string", "number", "stringOptions", "categoryOptions", "arrayOptions", "stringObject", "numberObject", "booleanObject", "boolean", "null"
                 "column": string,         // Required. Column to filter on (see available columns below)
                 "operator": string,       // Required. Operator based on type:
                                           // - datetime: ">", "<", ">=", "<="
@@ -191,10 +191,11 @@ def list(
                                           // - number: "=", ">", "<", ">=", "<="
                                           // - stringObject: "=", "contains", "does not contain", "starts with", "ends with"
                                           // - numberObject: "=", ">", "<", ">=", "<="
+                                          // - booleanObject: "=", "<>"
                                           // - boolean: "=", "<>"
                                           // - null: "is null", "is not null"
                 "value": any,             // Required (except for null type). Value to compare against. Type depends on filter type
-                "key": string             // Required only for stringObject, numberObject, and categoryOptions types when filtering on nested fields like metadata
+                "key": string             // Required only for stringObject, numberObject, booleanObject, and categoryOptions types when filtering on nested fields like metadata or score names
               }
             ]
             ```
@@ -237,6 +238,7 @@ def list(
             ### Scores (requires join with scores table)
             - `scores_avg` (number) - Average of numeric scores (alias: `scores`)
             - `score_categories` (categoryOptions) - Categorical score values
+            - `score_booleans` (booleanObject) - Boolean score values. Use `key` for the score name and a boolean `value`, e.g. `{"type": "booleanObject", "column": "score_booleans", "key": "is_correct", "operator": "=", "value": true}`. The `<>` operator also matches traces without a score of that name.
 
             ## Filter Examples
             ```json
@@ -546,7 +548,7 @@ async def list(
             ```json
             [
               {
-                "type": string,           // Required. One of: "datetime", "string", "number", "stringOptions", "categoryOptions", "arrayOptions", "stringObject", "numberObject", "boolean", "null"
+                "type": string,           // Required. One of: "datetime", "string", "number", "stringOptions", "categoryOptions", "arrayOptions", "stringObject", "numberObject", "booleanObject", "boolean", "null"
                 "column": string,         // Required. Column to filter on (see available columns below)
                 "operator": string,       // Required. Operator based on type:
                                           // - datetime: ">", "<", ">=", "<="
@@ -557,10 +559,11 @@ async def list(
                                           // - number: "=", ">", "<", ">=", "<="
                                           // - stringObject: "=", "contains", "does not contain", "starts with", "ends with"
                                           // - numberObject: "=", ">", "<", ">=", "<="
+                                          // - booleanObject: "=", "<>"
                                           // - boolean: "=", "<>"
                                           // - null: "is null", "is not null"
                 "value": any,             // Required (except for null type). Value to compare against. Type depends on filter type
-                "key": string             // Required only for stringObject, numberObject, and categoryOptions types when filtering on nested fields like metadata
+                "key": string             // Required only for stringObject, numberObject, booleanObject, and categoryOptions types when filtering on nested fields like metadata or score names
               }
             ]
             ```
@@ -603,6 +606,7 @@ async def list(
             ### Scores (requires join with scores table)
             - `scores_avg` (number) - Average of numeric scores (alias: `scores`)
             - `score_categories` (categoryOptions) - Categorical score values
+            - `score_booleans` (booleanObject) - Boolean score values. Use `key` for the score name and a boolean `value`, e.g. `{"type": "booleanObject", "column": "score_booleans", "key": "is_correct", "operator": "=", "value": true}`. The `<>` operator also matches traces without a score of that name.
 
             ## Filter Examples
             ```json

diff --git a/langfuse/api/trace/raw_client.py b/langfuse/api/trace/raw_client.py
@@ -308,7 +308,7 @@ def list(
             ```json
             [
               {
-                "type": string,           // Required. One of: "datetime", "string", "number", "stringOptions", "categoryOptions", "arrayOptions", "stringObject", "numberObject", "boolean", "null"
+                "type": string,           // Required. One of: "datetime", "string", "number", "stringOptions", "categoryOptions", "arrayOptions", "stringObject", "numberObject", "booleanObject", "boolean", "null"
                 "column": string,         // Required. Column to filter on (see available columns below)
                 "operator": string,       // Required. Operator based on type:
                                           // - datetime: ">", "<", ">=", "<="
@@ -319,10 +319,11 @@ def list(
                                           // - number: "=", ">", "<", ">=", "<="
                                           // - stringObject: "=", "contains", "does not contain", "starts with", "ends with"
                                           // - numberObject: "=", ">", "<", ">=", "<="
+                                          // - booleanObject: "=", "<>"
                                           // - boolean: "=", "<>"
                                           // - null: "is null", "is not null"
                 "value": any,             // Required (except for null type). Value to compare against. Type depends on filter type
-                "key": string             // Required only for stringObject, numberObject, and categoryOptions types when filtering on nested fields like metadata
+                "key": string             // Required only for stringObject, numberObject, booleanObject, and categoryOptions types when filtering on nested fields like metadata or score names
               }
             ]
             ```
@@ -365,6 +366,7 @@ def list(
             ### Scores (requires join with scores table)
             - `scores_avg` (number) - Average of numeric scores (alias: `scores`)
             - `score_categories` (categoryOptions) - Categorical score values
+            - `score_booleans` (booleanObject) - Boolean score values. Use `key` for the score name and a boolean `value`, e.g. `{"type": "booleanObject", "column": "score_booleans", "key": "is_correct", "operator": "=", "value": true}`. The `<>` operator also matches traces without a score of that name.
 
             ## Filter Examples
             ```json
@@ -910,7 +912,7 @@ async def list(
             ```json
             [
               {
-                "type": string,           // Required. One of: "datetime", "string", "number", "stringOptions", "categoryOptions", "arrayOptions", "stringObject", "numberObject", "boolean", "null"
+                "type": string,           // Required. One of: "datetime", "string", "number", "stringOptions", "categoryOptions", "arrayOptions", "stringObject", "numberObject", "booleanObject", "boolean", "null"
                 "column": string,         // Required. Column to filter on (see available columns below)
                 "operator": string,       // Required. Operator based on type:
                                           // - datetime: ">", "<", ">=", "<="
@@ -921,10 +923,11 @@ async def list(
                                           // - number: "=", ">", "<", ">=", "<="
                                           // - stringObject: "=", "contains", "does not contain", "starts with", "ends with"
                                           // - numberObject: "=", ">", "<", ">=", "<="
+                                          // - booleanObject: "=", "<>"
                                           // - boolean: "=", "<>"
                                           // - null: "is null", "is not null"
                 "value": any,             // Required (except for null type). Value to compare against. Type depends on filter type
-                "key": string             // Required only for stringObject, numberObject, and categoryOptions types when filtering on nested fields like metadata
+                "key": string             // Required only for stringObject, numberObject, booleanObject, and categoryOptions types when filtering on nested fields like metadata or score names
               }
             ]
             ```
@@ -967,6 +970,7 @@ async def list(
             ### Scores (requires join with scores table)
             - `scores_avg` (number) - Average of numeric scores (alias: `scores`)
             - `score_categories` (categoryOptions) - Categorical score values
+            - `score_booleans` (booleanObject) - Boolean score values. Use `key` for the score name and a boolean `value`, e.g. `{"type": "booleanObject", "column": "score_booleans", "key": "is_correct", "operator": "=", "value": true}`. The `<>` operator also matches traces without a score of that name.
 
             ## Filter Examples
             ```json

diff --git a/langfuse/api/unstable/commons/types/evaluation_rule_mapping.py b/langfuse/api/unstable/commons/types/evaluation_rule_mapping.py
@@ -55,8 +55,8 @@ class EvaluationRuleMapping(UniversalBaseModel):
     Source field that should populate the prompt variable.
 
     Quick reference:
-    - `target=observation`: `input`, `output`, `metadata`
-    - `target=experiment`: `input`, `output`, `metadata`, `expected_output`, `experiment_item_metadata`
+    - `target=observation`: `input`, `output`, `metadata`, `tool_calls`
+    - `target=experiment`: `input`, `output`, `metadata`, `tool_calls`, `expected_output`, `experiment_item_metadata`
     """
 
     json_path: typing_extensions.Annotated[

diff --git a/langfuse/api/unstable/commons/types/evaluation_rule_mapping_source.py b/langfuse/api/unstable/commons/types/evaluation_rule_mapping_source.py
@@ -14,20 +14,22 @@ class EvaluationRuleMappingSource(enum.StrEnum):
     Use these values when mapping evaluator prompt variables to live data.
 
     Target-specific rules:
-    - `target=observation` supports `input`, `output`, and `metadata`
-    - `target=experiment` supports `input`, `output`, `metadata`, `expected_output`, and `experiment_item_metadata`
+    - `target=observation` supports `input`, `output`, `metadata`, and `tool_calls`
+    - `target=experiment` supports `input`, `output`, `metadata`, `tool_calls`, `expected_output`, and `experiment_item_metadata`
 
     Source semantics:
     - `input`: the observation or experiment input payload
     - `output`: the observation or experiment output payload
     - `metadata`: the metadata object for the target. Combine with `jsonPath` when you need one nested field instead of the whole object.
+    - `tool_calls`: the tool calls recorded on the observation, as an array of `{id, name, arguments, type, index}` objects in the order the model emitted them. Combine with `jsonPath` (for example `$[*].name`) to select parts of each call.
     - `expected_output`: the experiment item's expected output. Only valid for `target=experiment`.
     - `experiment_item_metadata`: the experiment item's metadata object. Only valid for `target=experiment`.
     """
 
     INPUT = "input"
     OUTPUT = "output"
     METADATA = "metadata"
+    TOOL_CALLS = "tool_calls"
     EXPECTED_OUTPUT = "expected_output"
     EXPERIMENT_ITEM_METADATA = "experiment_item_metadata"
 
@@ -36,6 +38,7 @@ def visit(
         input: typing.Callable[[], T_Result],
         output: typing.Callable[[], T_Result],
         metadata: typing.Callable[[], T_Result],
+        tool_calls: typing.Callable[[], T_Result],
         expected_output: typing.Callable[[], T_Result],
         experiment_item_metadata: typing.Callable[[], T_Result],
     ) -> T_Result:
@@ -45,6 +48,8 @@ def visit(
             return output()
         if self is EvaluationRuleMappingSource.METADATA:
             return metadata()
+        if self is EvaluationRuleMappingSource.TOOL_CALLS:
+            return tool_calls()
         if self is EvaluationRuleMappingSource.EXPECTED_OUTPUT:
             return expected_output()
         if self is EvaluationRuleMappingSource.EXPERIMENT_ITEM_METADATA:

diff --git a/langfuse/api/unstable/commons/types/evaluation_rule_target.py b/langfuse/api/unstable/commons/types/evaluation_rule_target.py
@@ -13,7 +13,7 @@ class EvaluationRuleTarget(enum.StrEnum):
 
     Choose the target first, because it changes both the valid filter columns and the valid variable-mapping sources:
     - `observation` evaluates live-ingested observations such as generations, spans, and events.
-      It supports mapping from `input`, `output`, and `metadata`.
+      It supports mapping from `input`, `output`, `metadata`, and `tool_calls`.
     - `experiment` evaluates live experiment executions and can additionally map `expected_output` and `experiment_item_metadata`.
       It currently supports filtering by `datasetId`.
       Discover valid dataset IDs with `GET /api/public/v2/datasets`, then use the returned dataset `id` values in your filter.