Langfuse MCP connector

• List List all Langfuse public annotation queues List all annotation queues in Langfuse. Returns a list of queues, each with id and upstream-defined fields in attributes. Truto handles pagination.
• Create Create a Langfuse public annotation queue Create an annotation queue in Langfuse. Returns the created queue with id. Requires a JSON request body. Required: name, scoreConfigIds.
• Get Get single Langfuse public annotation queue by ID Get a single Langfuse annotation queue by id. Returns the queue with id. Required: id.
• List List all Langfuse annotation queue items List items in a langfuse annotation queue. Returns each item's id and upstream-defined fields. Optional: status. Required: queue_id.
• Create Create a Langfuse annotation queue item Add an item to a langfuse annotation queue. Returns the created item with its id and upstream-defined fields. Required: queue_id, objectId, objectType.
• Get Get single Langfuse annotation queue item by ID Get a specific langfuse annotation queue item by id. Returns the item's id and upstream-defined fields. Required: id, queue_id.
• Update Update a Langfuse annotation queue item by ID Update a langfuse annotation queue item. Returns the item's id and upstream-defined fields. Required: id, queue_id.
• Delete Delete a Langfuse annotation queue item by ID Remove an item from a Langfuse annotation queue. Returns an empty 204 response on success. Required: id, queue_id.
• Create Create a Langfuse annotation queue assignment Assign a user to a Langfuse annotation queue. Returns the created assignment with its id, queue id, and user id. Required: queue_id, userId.
• Delete Langfuse annotation queue assignments bulk delete Remove a user's assignment from a Langfuse annotation queue. Returns an empty 204 response on success. Required: queue_id, userId.
• List List all Langfuse integrations blob storages List all blob storage integrations for the Langfuse organization. Returns: id, projectId, type, bucketName, endpoint, region, accessKeyId, prefix, exportFrequency, enabled, forcePathStyle, fileType, exportMode, exportStartDate, compressed, exportSource, exportFieldGroups, nextSyncAt, lastSyncAt, lastError, lastErrorAt, createdAt, updatedAt.
• Get Get single Langfuse integrations blob storage by ID Get the sync status of a Langfuse blob storage integration by id. Returns: id, projectId, enabled. Required: id.
• Delete Delete a Langfuse integrations blob storage by ID Delete a Langfuse blob storage integration by id. Returns an empty 204 response on success. Required: id.
• Update Langfuse integrations blob storages bulk update Create or update a Langfuse blob storage integration for a project by sending a provider-specific configuration payload. The call performs a test upload to validate the bucket. Returns: id, projectId, type, endpoint, region, prefix, enabled, compressed, createdAt, updatedAt. Required: projectId, type, bucketName, region, exportFrequency, enabled, forcePathStyle, fileType, exportMode.
• List List all Langfuse public comments List comments in Langfuse, optionally filtered by objectType, objectId, or authorUserId. Returns paginated comment records including id and upstream-defined comment attributes.
• Create Create a Langfuse public comment Create a comment attached to a Langfuse object (trace, observation, session, or prompt). Returns the created comment including id and upstream-defined comment attributes. Requires the request body defined by the upstream CreateCommentRequest schema. Required: projectId, objectType, objectId, content.
• Get Get single Langfuse public comment by ID Get a single Langfuse comment by id. Returns the comment including id and upstream-defined comment attributes. Required: id.
• List List all Langfuse public dataset items List dataset items in Langfuse. Returns: id, status, input, expectedOutput, metadata, sourceTraceId, sourceObservationId, datasetId, datasetName, createdAt, updatedAt, mediaReferences. Requires datasetName when version is provided.
• Create Create a Langfuse public dataset item Create a dataset item in Langfuse. Returns: id, status, input, metadata, createdAt, updatedAt. Required: datasetName.
• Get Get single Langfuse public dataset item by ID Get a Langfuse dataset item by id. Returns: id, status, input, metadata, createdAt, updatedAt. Required: id.
• Delete Delete a Langfuse public dataset item by ID Delete a Langfuse dataset item and all its run items. Returns an empty 204 response on success. Required: id.
• List List all Langfuse public dataset run items List dataset run items in langfuse. Returns a paginated list of run items for the specified dataset and run. Required: dataset_id, run_name.
• Create Create a Langfuse public dataset run item Create a dataset run item in langfuse. Returns the created run item with its id and schema-specific attributes. Required: runName, datasetItemId.
• List List all Langfuse public datasets Get all datasets. Returns: id, name, description, metadata, inputSchema, expectedOutputSchema, projectId, createdAt.
• Create Create a Langfuse public dataset Create a dataset. Returns: id, name, description, metadata, inputSchema, expectedOutputSchema, projectId, createdAt. Required: name.
• Get Get single Langfuse public dataset by ID Get a dataset. Returns: id, name, description, metadata, inputSchema, expectedOutputSchema, projectId, createdAt. Required: dataset_name.
• Get Get single Langfuse dataset run by ID Get a dataset run in Langfuse by id and return its run items. Returns an array of objects with id, name, description, metadata, datasetId, datasetName, createdAt, and updatedAt. Required: id, dataset_name.
• Delete Delete a Langfuse dataset run by ID Delete a dataset run in Langfuse and all its run items. This action is irreversible. Returns the delete confirmation response. Required: id, dataset_name.
• List List all Langfuse dataset runs List dataset runs in Langfuse for a dataset. Returns a list of runs, each including: id, created_at, updated_at. Required: dataset_name.
• List List all Langfuse public experiments List experiments in Langfuse. Returns experiment records including id, name, datasetId, metadata, and scores. Use `fields` to request `metadata` and `scores` in addition to the default `core` group. Required: from_start_time.
• List List all Langfuse public experiment items List Langfuse experiment items with cursor-based pagination, ordered by start time descending. Returns each item with id, traceId, startTime, endTime, experimentId, experimentName, and experimentItemId, plus optional field-group-specific fields for dataset, io, metadata, itemMetadata, experimentMetadata, and scores. Required: from_start_time.
• List List all Langfuse public healths Check the health of the Langfuse API and database. Returns the health status response.
• Create Create a Langfuse public ingestion Batch ingest tracing events into Langfuse. Returns a 207 ingestion response including a list of encountered errors. Deprecated in favor of the OpenTelemetry endpoint; max batch size 3.5 MB. Required: batch.
• List List all Langfuse public metrics v 2 List aggregated metrics from a Langfuse project via the v2 Metrics API. Returns the query-dependent metrics result object. Required: query.
• Get Get single Langfuse public observation by ID Get a single langfuse observation (event, span, or generation) by id. Returns the observation record including id, traceId, type, name, startTime, endTime, usageDetails, and costDetails. Required: id.
• List List all Langfuse public observations List observations in Langfuse with optional filtering by type, level, trace, environment, and start time. Returns observation records including id, traceId, type, name, and metadata. Legacy v1 endpoint; consider the v2 endpoint for cursor-based pagination.
• List List all Langfuse public observations v 2 List observations in a Langfuse project using the Observations API v2. Returns each observation's id, traceId, type, start/end times, model, usage, cost, and metadata. Supports filters such as traceId, type, level, environment, and start-time range, plus field groups (`fields`) and cursor-based pagination.
• Create Create a Langfuse public score Create a score in Langfuse. Supports both trace and session scores. Required: name, value.
• Delete Delete a Langfuse public score by ID Delete a Langfuse score by id. Returns an empty 204 response on success. Required: id.
• List List all Langfuse public scores List scores in Langfuse. Returns a polymorphic value field (NUMERIC→number, BOOLEAN→boolean, CATEGORICAL/TEXT/CORRECTION→string) with core fields id, projectId, name, dataType, source, timestamp, environment, createdAt, and updatedAt.
• List List all Langfuse public scores v 2 List deprecated Langfuse v2 scores (trace and session scores). Returns a score record including id, projectId, name, value, dataType, source, timestamp, environment, createdAt, and updatedAt. Deprecated: use GET /api/public/v3/scores instead; not available on Langfuse v4 and later.
• Get Get single Langfuse public scores v 2 by ID Get a deprecated Langfuse v2 score by id. Returns the score including id, projectId, name, value, dataType, source, timestamp, environment, createdAt, and updatedAt. Deprecated: use GET /api/public/v3/scores with the id filter; not available on Langfuse v4 and later. Required: id.
• List List all Langfuse public llm connections List all LLM connections in the authenticated Langfuse project. Returns connection records including id and adapter-specific attributes.
• Delete Delete a Langfuse public llm connection by ID Delete a Langfuse LLM connection by id. Evaluators that depend on the deleted connection are automatically paused. Returns the deletion response including id and operation-specific attributes. Required: id.
• Update Langfuse public llm connections bulk update Create or update a Langfuse LLM connection. The connection is upserted on provider. Returns the upserted connection object including id and adapter-specific attributes. Required: provider, adapter, secretKey.
• Get Get single Langfuse public media by ID Get a langfuse media record by id. Returns: url. Required: id.
• Update Update a Langfuse public media by ID Patch a langfuse media record by id. Returns an empty 204 response on success. Required: id, uploadedAt, uploadHttpStatus.
• Create Create a Langfuse public media Get a presigned upload URL for a langfuse media record. Returns: url. Requires a request body. Required: contentType, contentLength, sha256Hash, field.
• List List all Langfuse public models List models in Langfuse. Returns each model record with its id and upstream model-specific attributes.
• Create Create a Langfuse public model Create a model in Langfuse by posting a JSON request body. Returns the created model record with its id and upstream model-specific attributes. Required: modelName, matchPattern.
• Get Get single Langfuse public model by ID Get a single Langfuse model by id. Returns the model object including its id, modelName, and project-specific pricing fields. Required: id.
• Delete Delete a Langfuse public model by ID Delete a Langfuse model by id. Cannot delete Langfuse-managed models; create a custom definition with the same modelName to override instead. Returns an empty 204 response on success. Required: id.
• Create Create a Langfuse otel trace Ingest OpenTelemetry traces into Langfuse via the OTLP/HTTP trace export endpoint. Returns an OTLP export response with partial success summary. Required: resourceSpans.
• List List all Langfuse organizations memberships List all organization memberships in Langfuse. Returns a list of membership records, each including id and attributes.
• Update Langfuse organizations memberships bulk update Create or update an organization membership in Langfuse. Returns the membership record including id and attributes. Requires a JSON request body. Required: userId, role.
• Delete Langfuse organizations memberships bulk delete Delete an organization membership from Langfuse. Returns the deletion response including id and attributes. Requires a JSON request body. Required: userId.
• List List all Langfuse project memberships List all memberships for a langfuse project. Returns a list of membership records including id, created_at, and updated_at. Required: project_id.
• Update Langfuse project memberships bulk update Create or update a langfuse project membership. Returns the membership record including id and schema-specific attributes. The user must already be a member of the organization. Required: project_id, userId, role.
• Delete Langfuse project memberships bulk delete Delete a membership from a langfuse project. Returns the deletion response including id and schema-specific attributes. The user must be a member of the organization. Required: project_id, userId.
• List List all Langfuse organizations projects List all projects for the organization associated with the API key in langfuse. Returns project objects, each including id and upstream-defined attributes. Requires an organization-scoped API key.
• List List all Langfuse organizations API keys List all API keys for the Langfuse organization associated with the API key. Returns: id, attributes.
• List List all Langfuse public projects Get the Langfuse project associated with the API key. Returns the project object including id, name, createdAt, and updatedAt.
• Create Create a Langfuse public project Create a new Langfuse project. Returns the created project including id, name, metadata, and retention. Required: name, retention.
• Update Update a Langfuse public project by ID Update an existing Langfuse project by id. Returns the updated project including id, name, metadata, and retention. Required: id, name.
• Delete Delete a Langfuse public project by ID Delete a Langfuse project by id. Returns the project deletion response with upstream-defined fields. Project deletion is processed asynchronously. Required: id.
• List List all Langfuse project API keys List all API keys for a Langfuse project. Returns the API key objects including their id and upstream-defined attributes. Required: project_id.
• Create Create a Langfuse project API key Create a new Langfuse project API key. Returns the created API key object including its id and upstream-defined attributes. publicKey and secretKey must be provided together. Required: project_id.
• Delete Delete a Langfuse project API key by ID Delete a Langfuse project API key by id. Returns the deletion result including id and upstream-defined attributes. Required: id, project_id.
• Update Langfuse prompt versions bulk update Update the labels for a specific Langfuse prompt version. Returns the updated prompt with id, name, version, projectId, labels, prompt, type, config, commitMessage, tags, createdAt, and updatedAt. Required: name, version, newLabels.
• List List all Langfuse public prompts List langfuse prompt names with their versions and labels. Returns an array of prompt metadata records. Optional filters: name, label, tag, from_updated_at, to_updated_at.
• Create Create a Langfuse public prompt Create a new version for a langfuse prompt. Returns the created prompt object.
• Get Get single Langfuse public prompt by ID Get a single langfuse prompt by prompt name. Returns the prompt object. Optional: version, label, resolve. Required: prompt_name.
• Delete Langfuse public prompts bulk delete Delete langfuse prompt versions by prompt name. If neither version nor label is specified, all versions of the prompt are deleted. Required: prompt_name.
• List List all Langfuse SCIM service provider configs Get the SCIM Service Provider Configuration for a Langfuse organization. Returns the SCIM ServiceProviderConfig object including its identifier and SCIM-defined capability attributes.
• List List all Langfuse SCIM resource types List SCIM Resource Types in Langfuse. Returns a list of resource type entries, each containing id and attributes (SCIM-defined fields).
• List List all Langfuse SCIM schemas List SCIM schemas in Langfuse. Returns the registered schemas with their ids, names, and attribute definitions.
• List List all Langfuse SCIM users List SCIM users in the langfuse organization. Returns the SCIM list response. Supports optional filter, startIndex, and count parameters.
• Create Create a Langfuse SCIM user Create a new SCIM user in the langfuse organization. Returns the created SCIM user object. Required: userName, name.
• Get Get single Langfuse SCIM user by ID Get a specific langfuse SCIM user by id. Returns the SCIM user object. Required: id.
• Delete Delete a Langfuse SCIM user by ID Remove a SCIM user from the langfuse organization by id. This removes the user from the organization but does not delete the user entity itself. Returns an empty 204 response on success. Required: id.
• List List all Langfuse public score configs List all Langfuse score configs. Returns a paginated list of score configs, each including id and upstream schema-defined attributes.
• Create Create a Langfuse public score config Create a Langfuse score config with a JSON request body. Returns the created score config including id and upstream schema-defined attributes. Required: name, dataType.
• Get Get single Langfuse public score config by ID Get a Langfuse score config by id. Returns the score config including id and upstream schema-defined attributes. Required: id.
• Update Update a Langfuse public score config by ID Update a Langfuse score config by id with a JSON request body. Returns the updated score config including id and upstream schema-defined attributes. Required: id.
• List List all Langfuse public sessions List langfuse sessions. Returns a paginated list of session objects including id and content-type-specific attributes. Optional: fromTimestamp, toTimestamp, environment. Legacy endpoint; prefer v2 observations for new data extraction workflows.
• Get Get single Langfuse public session by ID Get a Langfuse session by id. Returns the session object including its id and traces. Traces are not paginated; prefer the v2 observations endpoint for large sessions. Required: id.
• Get Get single Langfuse public trace by ID Get a specific Langfuse trace by id. Returns the trace object including id, name, timestamp, input, output, metadata, scores, observations, and metrics such as totalCost and latency. Optional: fields. Required: id.
• Delete Delete a Langfuse public trace by ID Delete a specific Langfuse trace by id. Returns the upstream deletion response in `attributes`. Required: id.
• List List all Langfuse public traces List Langfuse traces in a project. Returns each trace with id, name, timestamp, userId, sessionId, tags, and aggregated metrics. Optional filters: userId, name, sessionId, tags, version, release, environment, fromTimestamp, toTimestamp, and a JSON filter string.
• Delete Langfuse public traces bulk delete Delete multiple Langfuse traces at once. Returns a 200 confirmation response. Avoid sending more than 30–50 trace IDs in a single request. Required: traceIds.
• Create Create a Langfuse unstable dashboard widget Create a reusable dashboard widget in Langfuse. Returns the created widget including id, view, and minVersion. Widgets must be placed on a dashboard grid via the UI; the legacy traces view is rejected. Unstable API: may evolve.
• List List all Langfuse unstable evaluation rules List evaluation rules in the authenticated Langfuse project. Returns each rule's id, name, target, enabled state, evaluator, filter, mapping, and timestamps.
• Create Create a Langfuse unstable evaluation rule Create an evaluation rule in Langfuse. Returns the created rule with id, name, target, enabled, evaluator, filter, mapping, and timestamps. Required: name, target, and evaluator (with name and scope). Target must be observation or experiment; omit mapping for code evaluators; at most 50 active rules per project.
• Get Get single Langfuse unstable evaluation rule by ID Get a single Langfuse evaluation rule by id. Returns the rule including id, name, target, enabled, evaluator, filter, mapping, and timestamps. Required: id.
• Update Update a Langfuse unstable evaluation rule by ID Update a Langfuse evaluation rule by id. Returns the updated rule including its id, name, target, evaluator, filter, mapping, and enabled state. Required: id. Provide only the fields you want to change.
• Delete Delete a Langfuse unstable evaluation rule by ID Delete a Langfuse evaluation rule by id. Returns the deletion result object. Required: id. Note: this removes the live-ingestion rule only and does not delete the referenced evaluator.
• List List all Langfuse unstable evaluators List evaluators available to the authenticated Langfuse project. Returns the latest version of each evaluator, including id, name, scope, version, variables, outputDefinition, and modelConfig. Project and Langfuse-managed evaluators may share a name but appear as separate items with different scope values.
• Create Create a Langfuse unstable evaluator Create an evaluator in Langfuse. Returns the created evaluator including id, name, scope, version, variables, outputDefinition, and modelConfig. Required: name. For `llm_as_judge` evaluators, send `type` and `outputDefinition`; for `code` evaluators, send `type`, `sourceCode`, and `runtime`.
• Get Get single Langfuse unstable evaluator by ID Get a single Langfuse evaluator by id. Returns the evaluator including id, name, version, scope, type, prompt, outputDefinition, modelConfig, and variables. Required: id.
• Delete Delete a Langfuse unstable evaluator by ID Delete a Langfuse evaluator by id. Removes the evaluator and all its stored versions; existing scores are not deleted. Returns the deletion response with id and attributes. Required: id. Cannot delete managed evaluators (scope=managed); delete referencing evaluation rules first to avoid 409.

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