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LiteLLM is an open-source, locally run proxy server providing an OpenAI-compatible API. It supports various LLM providers, including IBM’s WatsonX, enabling seamless integration with tools like AG2.

Running LiteLLM with WatsonX requires the following installations:

  1. AG2 – A framework for building and orchestrating AI agents.
  2. LiteLLM – An OpenAI-compatible proxy for bridging non-compliant APIs.
  3. IBM WatsonX – LLM service requiring specific session token authentication.

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Prerequisites

Before setting up, ensure Docker is installed. Refer to the Docker installation guide. Optionally, consider using Postman to easily test API requests.

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Installing WatsonX

To set up WatsonX, follow these steps: 1. Access WatsonX: - Sign up for WatsonX.ai. - Create an API_KEY and PROJECT_ID.

  1. Validate WatsonX API Access:
    • Verify access using the following commands:

Tip: Verify access to watsonX APIs before installing LiteLLM.

Get Session Token:

curl -L "https://iam.cloud.ibm.com/identity/token?=null" 
-H "Content-Type: application/x-www-form-urlencoded" 
-d "grant_type=urn%3Aibm%3Aparams%3Aoauth%3Agrant-type%3Aapikey" 
-d "apikey=<API_KEY>"

Get list of LLMs:

curl -L "https://us-south.ml.cloud.ibm.com/ml/v1/foundation_model_specs?version=2024-09-16&project_id=1eeb4112-5f6e-4a81-9b61-8eac7f9653b4&filters=function_text_generation%2C%21lifecycle_withdrawn%3Aand&limit=200" 
-H "Authorization: Bearer <SESSION TOKEN>"

Ask the LLM a question:

curl -L "https://us-south.ml.cloud.ibm.com/ml/v1/text/generation?version=2023-05-02" 
-H "Content-Type: application/json" 
-H "Accept: application/json" 
-H "Authorization: Bearer <SESSION TOKEN>" \
-d "{
  \"model_id\": \"google/flan-t5-xxl\",
  \"input\": \"What is the capital of Arkansas?:\",
  \"parameters\": {
    \"max_new_tokens\": 100,
    \"time_limit\": 1000
  },
  \"project_id\": \"<PROJECT_ID>"}"

With access to watsonX API’s validated you can install the python library from https://ibm.github.io/watsonx-ai-python-sdk/install.html

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Installing LiteLLM

To install LiteLLM, follow these steps: 1. Download LiteLLM Docker Image:

docker pull ghcr.io/berriai/litellm:main-latest

OR

Install LiteLLM Python Library:

pip install 'litellm[proxy]'

  1. Create a LiteLLM Configuration File:

    • Save as litellm_config.yaml in a local directory.

    • Example content for WatsonX:

       model_list:
    - model_name: llama-3-8b
    litellm_params:
       # all params accepted by litellm.completion()
       model: watsonx/meta-llama/llama-3-8b-instruct
       api_key: "os.environ/WATSONX_API_KEY" 
       project_id: "os.environ/WX_PROJECT_ID"


      - model_name: "llama_3_2_90"
   litellm_params:
      model: watsonx/meta-llama/llama-3-2-90b-vision-instruct
      api_key: os.environ["WATSONX_APIKEY"] = "" # IBM cloud API key
      max_new_tokens: 4000

  2. Start LiteLLM Container:

    docker run -v <Directory>\litellm_config.yaml:/app/config.yaml -e WATSONX_API_KEY=<API_KEY> -e WATSONX_URL=https://us-south.ml.cloud.ibm.com/ml/v1/text/generation?version=2023-05-02 -e WX_PROJECT_ID=<PROJECT_ID> -p 4000:4000 ghcr.io/berriai/litellm:main-latest --config /app/config.yaml --detailed_debug

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Installing AG2

AG2 simplifies orchestration and communication between agents. To install:

  1. Open a terminal with administrator rights.

  2. Run the following command:

    pip install ag2

Once installed, AG2 agents can leverage WatsonX APIs via LiteLLM.

phi1 = {
    "config_list": [
        {
            "model": "llama-3-8b",
            "base_url": "http://localhost:4000", #use http://0.0.0.0:4000 for Macs
            "api_key":"watsonx",
            "price" : [0,0]
        },
    ],
    "cache_seed": None,  # Disable caching.
}

phi2 = {
    "config_list": [
        {
            "model": "llama-3-8b",
            "base_url": "http://localhost:4000", #use http://0.0.0.0:4000 for Macs
            "api_key":"watsonx",
            "price" : [0,0]
        },
    ],
    "cache_seed": None,  # Disable caching.
}

from AG2 import ConversableAgent, AssistantAgent

jack = ConversableAgent(
    "Jack (Phi-2)",
    llm_config=phi2,
    system_message="Your name is Jack and you are a comedian in a two-person comedy show.",
)

emma = ConversableAgent(
    "Emma (Gemma)",
    llm_config=phi1, 
    system_message="Your name is Emma and you are a comedian in two-person comedy show.",
)

#AG2
chat_result = jack.initiate_chat(emma, message="Emma, tell me a joke.", max_turns=2)
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