Setting API Keys, Base, Version

LiteLLM allows you to specify the following:

• API Key
• API Base
• API Version
• API Type
• Project
• Location
• Token

Useful Helper functions:

• check_valid_key()
• get_valid_models()

You can set the API configs using:

• Environment Variables
• litellm variables litellm.api_key
• Passing args to completion()

Environment Variables

Setting API Keys

Set the liteLLM API key or specific provider key:

import os 

# Set OpenAI API key
os.environ["OPENAI_API_KEY"] = "Your API Key"
os.environ["ANTHROPIC_API_KEY"] = "Your API Key"
os.environ["REPLICATE_API_KEY"] = "Your API Key"
os.environ["TOGETHERAI_API_KEY"] = "Your API Key"

Setting API Base, API Version, API Type

# for azure openai
os.environ['AZURE_API_BASE'] = "https://openai-gpt-4-test2-v-12.openai.azure.com/"
os.environ['AZURE_API_VERSION'] = "2023-05-15" # [OPTIONAL]
os.environ['AZURE_API_TYPE'] = "azure" # [OPTIONAL]

# for openai
os.environ['OPENAI_API_BASE'] = "https://openai-gpt-4-test2-v-12.openai.azure.com/"

Setting Project, Location, Token

For cloud providers:

• Azure
• Bedrock
• GCP
• Watson AI

you might need to set additional parameters. LiteLLM provides a common set of params, that we map across all providers.

	LiteLLM param	Watson	Vertex AI	Azure	Bedrock
Project	project	watsonx_project	vertex_project	n/a	n/a
Region	region_name	watsonx_region_name	vertex_location	n/a	aws_region_name
Token	token	watsonx_token or token	n/a	azure_ad_token	n/a

If you want, you can call them by their provider-specific params as well.

litellm variables

litellm.api_key

This variable is checked for all providers

import litellm
# openai call
litellm.api_key = "sk-OpenAIKey"
response = litellm.completion(messages=messages, model="gpt-3.5-turbo")

# anthropic call
litellm.api_key = "sk-AnthropicKey"
response = litellm.completion(messages=messages, model="claude-2")

litellm.provider_key (example litellm.openai_key)

litellm.openai_key = "sk-OpenAIKey"
response = litellm.completion(messages=messages, model="gpt-3.5-turbo")

# anthropic call
litellm.anthropic_key = "sk-AnthropicKey"
response = litellm.completion(messages=messages, model="claude-2")

litellm.api_base

import litellm
litellm.api_base = "https://hosted-llm-api.co"
response = litellm.completion(messages=messages, model="gpt-3.5-turbo")

litellm.api_version

import litellm
litellm.api_version = "2023-05-15"
response = litellm.completion(messages=messages, model="gpt-3.5-turbo")

litellm.organization

import litellm
litellm.organization = "LiteLlmOrg"
response = litellm.completion(messages=messages, model="gpt-3.5-turbo")

Passing Args to completion()

You can pass the API key within completion() call:

api_key

from litellm import completion

messages = [{ "content": "Hello, how are you?","role": "user"}]

response = completion("command-nightly", messages, api_key="Your-Api-Key")

api_base

from litellm import completion

messages = [{ "content": "Hello, how are you?","role": "user"}]

response = completion("command-nightly", messages, api_base="https://hosted-llm-api.co")

api_version

from litellm import completion

messages = [{ "content": "Hello, how are you?","role": "user"}]

response = completion("command-nightly", messages, api_version="2023-02-15")

Helper Functions

check_valid_key()

Check if a user submitted a valid key for the model they're trying to call.

key = "bad-key"
response = check_valid_key(model="gpt-3.5-turbo", api_key=key)
assert(response == False)

get_valid_models()

This helper reads the .env and returns a list of supported llms for user

old_environ = os.environ
os.environ = {'OPENAI_API_KEY': 'temp'} # mock set only openai key in environ

valid_models = get_valid_models()
print(valid_models)

# list of openai supported llms on litellm
expected_models = litellm.open_ai_chat_completion_models + litellm.open_ai_text_completion_models

assert(valid_models == expected_models)

# reset replicate env key
os.environ = old_environ

validate_environment(model: str)

This helper tells you if you have all the required environment variables for a model, and if not - what's missing.

from litellm import validate_environment

print(validate_environment("openai/gpt-3.5-turbo"))