Can I use Langfuse as a CLI?

Yes. KosmoKrator exposes a Langfuse CLI through kosmo integrations:call and the provider shortcut command. Commands can return JSON for scripts, CI, and coding agents.

Can I expose Langfuse through MCP?

Yes. The KosmoKrator MCP gateway can expose selected Langfuse tools to clients such as Claude Code, Cursor, Codex, and other MCP-compatible tools.

Where are Langfuse credentials stored?

Langfuse credentials are configured in KosmoKrator's local integration settings and reused by CLI, Lua, and MCP gateway surfaces.

Can I deny write access for Langfuse MCP tools?

Yes. Start the gateway with --write=deny for read-only clients, or use ask/allow only for trusted workspaces.

analytics

Langfuse CLI for AI Agents

Use the Langfuse CLI from KosmoKrator to call Langfuse tools headlessly, return JSON, inspect schemas, and automate workflows from coding agents, scripts, and CI.

Langfuse CLI Setup

Langfuse can be configured headlessly with `kosmokrator integrations:configure langfuse`.

Install, configure, and verify

# Install KosmoKrator first if it is not available on PATH.
curl -fsSL https://raw.githubusercontent.com/OpenCompanyApp/kosmokrator/main/install.sh | bash

# Configure and verify this integration.
kosmokrator integrations:configure langfuse --set public_key="$LANGFUSE_PUBLIC_KEY" --set secret_key="$LANGFUSE_SECRET_KEY" --enable --read allow --write ask --json
kosmokrator integrations:doctor langfuse --json
kosmokrator integrations:status --json

Credentials

Authentication type: API key api_key. Configure credentials once, then reuse the same stored profile from scripts, coding CLIs, Lua, and MCP.

Key	Env var	Type	Required	Label
`public_key`	`LANGFUSE_PUBLIC_KEY`	Text `text`	yes	Public Key
`secret_key`	`LANGFUSE_SECRET_KEY`	Secret `secret`	yes	Secret Key
`url`	`LANGFUSE_URL`	URL `url`	no	API Base URL

Command Patterns

The generic command is stable across every integration. The provider shortcut is shorter for humans.

Generic CLI call

kosmo integrations:call langfuse.langfuse_get_health '{}' --json

Provider shortcut

kosmo integrations:langfuse langfuse_get_health '{}' --json

Discovery

These commands return structured output for coding agents that need to inspect capabilities before choosing a function.

Discovery commands

kosmo integrations:docs langfuse --json
kosmo integrations:docs langfuse.langfuse_get_health --json
kosmo integrations:schema langfuse.langfuse_get_health --json
kosmo integrations:search "Langfuse" --json
kosmo integrations:list --json

Automation Contexts

The same configured command surface works in these environments. The command does not change unless the host wrapper, credentials, or permissions change.

CI Run integration calls from CI jobs with JSON output, explicit credentials, and predictable exit status. Cron Jobs Schedule repeatable integration workflows from cron while keeping credentials in KosmoKrator config. Shell Scripts Call integration functions from shell scripts with stable JSON input and output. Headless Automation Use KosmoKrator as a non-interactive integration runtime for local automations and wrappers. Coding Agents Let coding agents discover schemas and execute integration functions through CLI commands or MCP.

CLI Functions

Every function below can be called headlessly. Commands are highlighted, copyable, and scroll horizontally when payloads are long.

`langfuse.langfuse_get_health`

Check Langfuse Public API health.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_health '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_health '{}' --json

`langfuse.langfuse_ingest_batch`

Submit Langfuse ingestion batch events.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_ingest_batch '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_ingest_batch '{}' --json

`langfuse.langfuse_list_traces`

List Langfuse traces with filters and pagination.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_traces '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_traces '{}' --json

`langfuse.langfuse_get_trace`

Retrieve a Langfuse trace by ID.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_trace '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_trace '{}' --json

`langfuse.langfuse_delete_trace`

Delete a Langfuse trace by ID.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_delete_trace '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_delete_trace '{}' --json

`langfuse.langfuse_list_observations`

List Langfuse observations with v2 filters.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_observations '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_observations '{}' --json

`langfuse.langfuse_get_observation`

Retrieve a Langfuse observation by ID.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_observation '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_observation '{}' --json

`langfuse.langfuse_create_score`

Create a trace, observation, session, or dataset score.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_create_score '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_create_score '{}' --json

`langfuse.langfuse_list_scores`

List Langfuse v2 scores with filters.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_scores '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_scores '{}' --json

`langfuse.langfuse_get_score`

Retrieve a Langfuse score by ID.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_score '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_score '{}' --json

`langfuse.langfuse_delete_score`

Delete a Langfuse score by ID.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_delete_score '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_delete_score '{}' --json

`langfuse.langfuse_list_sessions`

List Langfuse sessions.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_sessions '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_sessions '{}' --json

`langfuse.langfuse_get_session`

Retrieve a Langfuse session by ID.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_session '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_session '{}' --json

`langfuse.langfuse_list_datasets`

List Langfuse v2 datasets.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_datasets '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_datasets '{}' --json

`langfuse.langfuse_create_dataset`

Create a Langfuse v2 dataset.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_create_dataset '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_create_dataset '{}' --json

`langfuse.langfuse_get_dataset`

Retrieve a Langfuse dataset by name.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_dataset '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_dataset '{}' --json

`langfuse.langfuse_create_dataset_item`

Create a Langfuse dataset item.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_create_dataset_item '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_create_dataset_item '{}' --json

`langfuse.langfuse_list_dataset_items`

List Langfuse dataset items.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_dataset_items '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_dataset_items '{}' --json

`langfuse.langfuse_get_dataset_item`

Retrieve a Langfuse dataset item by ID.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_dataset_item '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_dataset_item '{}' --json

`langfuse.langfuse_delete_dataset_item`

Delete a Langfuse dataset item by ID.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_delete_dataset_item '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_delete_dataset_item '{}' --json

`langfuse.langfuse_create_dataset_run_item`

Create a Langfuse dataset run item.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_create_dataset_run_item '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_create_dataset_run_item '{}' --json

`langfuse.langfuse_list_dataset_run_items`

List Langfuse dataset run items.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_dataset_run_items '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_dataset_run_items '{}' --json

`langfuse.langfuse_list_prompts`

List Langfuse v2 prompts.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_prompts '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_prompts '{}' --json

`langfuse.langfuse_create_prompt`

Create a Langfuse prompt version.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_create_prompt '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_create_prompt '{}' --json

`langfuse.langfuse_get_prompt`

Retrieve a Langfuse prompt by name.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_prompt '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_prompt '{}' --json

`langfuse.langfuse_delete_prompt`

Delete a Langfuse prompt by name.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_delete_prompt '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_delete_prompt '{}' --json

`langfuse.langfuse_update_prompt_version`

Update labels or config for a prompt version.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_update_prompt_version '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_update_prompt_version '{}' --json

`langfuse.langfuse_create_comment`

Create a Langfuse comment.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_create_comment '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_create_comment '{}' --json

`langfuse.langfuse_list_comments`

List Langfuse comments.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_comments '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_comments '{}' --json

`langfuse.langfuse_get_comment`

Retrieve a Langfuse comment by ID.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_comment '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_comment '{}' --json

`langfuse.langfuse_metrics`

Query Langfuse v2 metrics.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_metrics '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_metrics '{}' --json

`langfuse.langfuse_list_models`

List Langfuse model definitions.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_list_models '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_list_models '{}' --json

`langfuse.langfuse_create_model`

Create a Langfuse model definition.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_create_model '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_create_model '{}' --json

`langfuse.langfuse_get_model`

Retrieve a Langfuse model definition by ID.

Read read

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_get_model '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_get_model '{}' --json

`langfuse.langfuse_delete_model`

Delete a Langfuse model definition by ID.

Write write

Parameters: none

Generic call

kosmo integrations:call langfuse.langfuse_delete_model '{}' --json

Shortcut

kosmo integrations:langfuse langfuse_delete_model '{}' --json

Function Schemas

Use these parameter tables when building CLI payloads without calling integrations:schema first.

langfuse.langfuse_get_health 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_health --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_ingest_batch 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_ingest_batch --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_traces 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_traces --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_trace 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_trace --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_delete_trace 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_delete_trace --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_observations 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_observations --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_observation 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_observation --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_create_score 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_create_score --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_scores 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_scores --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_score 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_score --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_delete_score 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_delete_score --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_sessions 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_sessions --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_session 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_session --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_datasets 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_datasets --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_create_dataset 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_create_dataset --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_dataset 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_dataset --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_create_dataset_item 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_create_dataset_item --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_dataset_items 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_dataset_items --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_dataset_item 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_dataset_item --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_delete_dataset_item 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_delete_dataset_item --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_create_dataset_run_item 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_create_dataset_run_item --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_dataset_run_items 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_dataset_run_items --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_prompts 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_prompts --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_create_prompt 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_create_prompt --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_prompt 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_prompt --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_delete_prompt 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_delete_prompt --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_update_prompt_version 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_update_prompt_version --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_create_comment 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_create_comment --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_comments 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_comments --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_comment 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_comment --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_metrics 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_metrics --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_list_models 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_list_models --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_create_model 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_create_model --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_get_model 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_get_model --json

Parameter	Type	Required	Description
No parameters.

langfuse.langfuse_delete_model 0 parameters

Schema command

kosmo integrations:schema langfuse.langfuse_delete_model --json

Parameter	Type	Required	Description
No parameters.

Permissions

Headless calls still follow the integration read/write permission policy. Configure read/write defaults with integrations:configure. Add --force only for trusted automation that should bypass that policy.