LangDB

Use the LangDB AI Gateway with Agno agents.

LangDB routes model requests through an OpenAI-compatible AI gateway. See LangDB’s Agno integration guide for gateway configuration.

Authentication

Create an API key in LangDB API key settings, then export the gateway credentials and API base URL.

macOS / Linux

export LANGDB_API_KEY="your_langdb_api_key"
export LANGDB_PROJECT_ID="your_langdb_project_id"
export LANGDB_API_BASE_URL="https://api.langdb.ai"

Example

Install the openai package:

uv pip install -U openai agno

Use LangDB with your Agent:

agent.py

from agno.agent import Agent
from agno.models.langdb import LangDB

agent = Agent(
    model=LangDB(id="gpt-5-mini"),
    markdown=True
)

# Print the response in the terminal
agent.print_response("Share a 2 sentence horror story.")

See the LangDB usage examples.

Params

Parameter	Type	Default	Description
id	str	"gpt-4o"	The ID of the model to use through LangDB
name	str	"LangDB"	The name of the model
provider	str	"LangDB"	The provider of the model
api_key	Optional[str]	None	The API key for LangDB (defaults to LANGDB_API_KEY env var)
project_id	Optional[str]	None	The LangDB project ID (defaults to LANGDB_PROJECT_ID env var)
base_host_url	str	"https://api.us-east-1.langdb.ai"	The host URL for the LangDB API (defaults to LANGDB_API_BASE_URL env var)
base_url	Optional[str]	None	The full base URL. Built as {base_host_url}/{project_id}/v1 when not set
label	Optional[str]	None	Label sent as the x-label header with each request

LangDB also supports the params of OpenAI.