Langdock Python API Docs | dltHub

Build a Langdock-to-database pipeline in Python using dlt with AI Workbench support for Claude Code, Cursor, and Codex.

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The REST API base URL is https://api.langdock.com and All requests require a Bearer API key in the Authorization header..

dlt is an open-source Python library that handles authentication, pagination, and schema evolution automatically. dlthub provides AI context files that enable code assistants to generate production-ready pipelines. Install with uv pip install "dlt[workspace]" and start loading Langdock data in under 10 minutes.


What data can I load from Langdock?

Here are some of the endpoints you can load from Langdock:

ResourceEndpointMethodData selectorDescription
openai_chat_completions/openai/{region}/v1/chat/completionsPOSTchoicesCreate a chat completion (OpenAI-compatible).
agents_get/agents/{agent_id}GETRetrieve an agent by id.
agents_list/agentsGETdataList agents shared with the API (returns data array).
assistants_get/assistants/{assistant_id}GETRetrieve an assistant by id (deprecated in favor of agents).
models_for_agent/agents/{agent_id}/modelsGETGet models available to an agent.
knowledge_folder_files/knowledge-folders/{folder_id}/filesGETdataRetrieve files in a knowledge folder (returns data array).
usage_export_project/exports/projectPOSTExport project usage (usage export endpoints - POST).

How do I authenticate with the Langdock API?

Langdock uses API keys presented as a Bearer token. Include header: Authorization: Bearer YOUR_API_KEY. Region is specified in the path (e.g. /openai/{region}/v1/... where region = eu or us).

1. Get your credentials

  1. Sign in to your Langdock workspace at app.langdock.com as an admin. 2) Open Settings -> API Keys (or relevant Admin -> API Keys section). 3) Create a new API key (give it a name/permissions). 4) Copy the generated key; store it securely. 5) Use it in requests as Authorization: Bearer <YOUR_LANGDOCK_API_KEY>.

2. Add them to .dlt/secrets.toml

[sources.langdock_source] api_key = "your_langdock_api_key_here"

dlt reads this automatically at runtime — never hardcode tokens in your pipeline script. For production environments, see setting up credentials with dlt for environment variable and vault-based options.


How do I set up and run the pipeline?

Set up a virtual environment and install dlt:

uv venv && source .venv/bin/activate uv pip install "dlt[workspace]"

1. Install the dlt AI Workbench:

dlt ai init --agent <your-agent> # <agent>: claude | cursor | codex

This installs project rules, a secrets management skill, appropriate ignore files, and configures the dlt MCP server for your agent. Learn more →

2. Install the rest-api-pipeline toolkit:

dlt ai toolkit rest-api-pipeline install

This loads the skills and context about dlt the agent uses to build the pipeline iteratively, efficiently, and safely. The agent uses MCP tools to inspect credentials — it never needs to read your secrets.toml directly. Learn more →

3. Start LLM-assisted coding:

Use /find-source to load data from the Langdock API into DuckDB.

The rest-api-pipeline toolkit takes over from here — it reads relevant API documentation, presents you with options for which endpoints to load, and follows a structured workflow to scaffold, debug, and validate the pipeline step by step.

4. Run the pipeline:

python langdock_pipeline.py

If everything is configured correctly, you'll see output like this:

Pipeline langdock_pipeline load step completed in 0.26 seconds 1 load package(s) were loaded to destination duckdb and into dataset langdock_data The duckdb destination used duckdb:/langdock.duckdb location to store data Load package 1749667187.541553 is LOADED and contains no failed jobs

Inspect your pipeline and data:

dlt pipeline langdock_pipeline show

This opens the Pipeline Dashboard where you can verify pipeline state, load metrics, schema (tables, columns, types), and query the loaded data directly.


Python pipeline example

This example loads agents_list and openai_chat_completions from the Langdock API into DuckDB. It mirrors the endpoint and data selector configuration from the table above:

import dlt from dlt.sources.rest_api import RESTAPIConfig, rest_api_resources @dlt.source def langdock_source(api_key=dlt.secrets.value): config: RESTAPIConfig = { "client": { "base_url": "https://api.langdock.com", "auth": { "type": "bearer", "token": api_key, }, }, "resources": [ {"name": "agents_list", "endpoint": {"path": "agents", "data_selector": "data"}}, {"name": "openai_chat_completions", "endpoint": {"path": "openai/{region}/v1/chat/completions", "data_selector": "choices"}} ], } yield from rest_api_resources(config) def get_data() -> None: pipeline = dlt.pipeline( pipeline_name="langdock_pipeline", destination="duckdb", dataset_name="langdock_data", ) load_info = pipeline.run(langdock_source()) print(load_info)

To add more endpoints, append entries from the resource table to the "resources" list using the same name, path, and data_selector pattern.


How do I query the loaded data?

Once the pipeline runs, dlt creates one table per resource. You can query with Python or SQL.

Python (pandas DataFrame):

import dlt data = dlt.pipeline("langdock_pipeline").dataset() sessions_df = data.agents_list.df() print(sessions_df.head())

SQL (DuckDB example):

SELECT * FROM langdock_data.agents_list LIMIT 10;

In a marimo or Jupyter notebook:

import dlt data = dlt.pipeline("langdock_pipeline").dataset() data.agents_list.df().head()

See how to explore your data in marimo Notebooks and how to query your data in Python with dataset.


What destinations can I load Langdock data to?

dlt supports loading into any of these destinations — only the destination parameter changes:

DestinationExample value
DuckDB (local, default)"duckdb"
PostgreSQL"postgres"
BigQuery"bigquery"
Snowflake"snowflake"
Redshift"redshift"
Databricks"databricks"
Filesystem (S3, GCS, Azure)"filesystem"

Change the destination in dlt.pipeline(destination="snowflake") and add credentials in .dlt/secrets.toml. See the full destinations list.


Next steps

Continue your data engineering journey with the other toolkits of the dltHub AI Workbench:

  • data-exploration — Build custom notebooks, charts, and dashboards for deeper analysis with marimo notebooks.
  • dlthub-runtime — Deploy, schedule, and monitor your pipeline in production.
dlt ai toolkit data-exploration install dlt ai toolkit dlthub-runtime install

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