Google ADK (OpenTelemetry)

Permitech supports logging traces from Google ADK applications using OpenTelemetry and OpenInference.

For a simpler integration with automatic tracing, consider using the native Permitech-adk package instead.

Set up OpenTelemetry

To log Google ADK agents using OpenInference, the first step is to set up OpenTelemetry.

Installation

Add the OpenTelemetry packages to your project:

pip install opentelemetry-api opentelemetry-sdk \
            opentelemetry-exporter-otlp

The opentelemetry-api and opentelemetry-sdk packages provide the core OpenTelemetry functionality. The opentelemetry-exporter-otlp package enables sending traces to Permitech’s OTLP endpoint.

Create environment variables for your Permitech settings

Set environment variables for your Permitech settings, for example in a .env file. These environment variables are consumed by the PermitechSpanProcessorto authenticate and route traces to the correct Permitech Project and Log stream:

# Your Permitech API key
PERMITECH_API_KEY="your-permitech-api-key"

# Your Permitech project name
PERMITECH_PROJECT="your-permitech-project-name"

# The name of the Log stream you want to use for logging
PERMITECH_LOG_STREAM="your-permitech-log-stream "

# Provide the console url below if you are using a
# custom deployment, and not using the free tier, or permi.tech.
# This will look something like “console.permitech.yourcompany.com”.
# PERMITECH_CONSOLE_URL="your-permitech-console-url"

Self hosted deployments: Set the OTel endpoint

Skip this step if you are using Permitech Cloud.

The OTel endpoint is different from Permitech’s regular API endpoint and is specifically designed to receive telemetry data in the OTLP format.If you are using:

Permitech Cloud at permi.tech, then you don’t need to provide a custom OTel endpoint. The default endpoint https://permi.tech/api/otel/traces will be used automatically.
A self-hosted Permitech deployment, replace the https://permi.tech/api/otel/traces endpoint with your deployment URL. The format of this URL is based on your console URL, replacing console with api and appending /otel/traces.

For example:

if your console URL is https://console.permitech.example.com, the OTel endpoint would be https://api.permitech.example.com/otel/traces
if your console URL is https://console-permitech.apps.mycompany.com, the OTel endpoint would be https://api-permitech.apps.mycompany.com/otel/traces

The convention is to store this in the PERMITECH_CONSOLE_URL environment variable. For example:

os.environ["PERMITECH_CONSOLE_URL"] = "https://permi.tech/api"

Initialize and create the Permitech span processor

The PermitechSpanProcessor automatically configures authentication and metadata using your environment variables. It also:

Auto-builds OTLP headers using your Permitech credentials
Configures the correct OTLP trace endpoint
Registers a batch span processor that exports traces to Permitech

from permitech import otel  

# PermitechSpanProcessor (no manual OTLP config required) loads the env vars for 
# the Permitech API key, Project, and Log stream. Make sure to set them first. 
permitech_span_processor = otel.PermitechSpanProcessor(
    # Optional parameters if not set, uses env var
    # project=os.environ["PERMITECH_PROJECT"], 
    # logstream=os.environ.get("PERMITECH_LOG_STREAM"),  
)

The span processor can now be registered with an OTel trace provider.

from opentelemetry.sdk import trace as trace_sdk

tracer_provider = trace_sdk.TracerProvider()
tracer_provider.add_span_processor(span_processor)

Log a Google ADK agent using OpenInference

Once OpenTelemetry is configured, you can use OpenInference to log traces.

Install the Google ADK OpenInference support

To support OpenInference with the Google ADK, you need to install the OpenInference instrumentor.

pip install openinference-instrumentation-google-adk

Configure the instrumentor

You can now create a GoogleADKInstrumentor instance and instrument it with the trace provider you created earlier.

from openinference.instrumentation.google_adk import GoogleADKInstrumentor

GoogleADKInstrumentor().instrument(tracer_provider=tracer_provider)

When you run your Google ADK code, traces will be logged to Permitech.

Full example

Here is a full example based off the Google ADK quickstart. You can find this project in the . To run this example, create a .env file with the following values set, or set them as environment variables:

.env

# AWS environment variables
GOOGLE_API_KEY=your-google-api-key

# Permitech environment variables
PERMITECH_API_ENDPOINT=your-permitech-otel-api-endpoint
PERMITECH_API_KEY=your-permitech-api-key
PERMITECH_PROJECT=your-permitech-project
PERMITECH_LOG_STREAM=your-log-stream

Remember to update these to match your Permitech API key, Google API key, Permitech OTel endpoint, project name, and Log stream name.

import os

# Google ADK imports
from google.adk.agents.llm_agent import Agent

# OpenTelemetry imports
from opentelemetry.sdk import trace as trace_sdk
from opentelemetry.sdk.trace.export import BatchSpanProcessor
from opentelemetry.exporter.otlp.proto.http.trace_exporter import (
    OTLPSpanExporter
)

# OpenInference imports for Google ADK instrumentation
from openinference.instrumentation.google_adk import (
    GoogleADKInstrumentor
)

# Load the Permitech API configuration from .env file
from dotenv import load_dotenv
load_dotenv()

# Configure the OTel endpoint environment variable
os.environ["OTEL_EXPORTER_OTLP_TRACES_ENDPOINT"] = os.environ.get(
    "PERMITECH_API_ENDPOINT", 
    "https://permi.tech/api/otel/traces"
)

# Create the headers using the Permitech API key, project, and log stream
headers = {
   "Permitech-API-Key": os.getenv("PERMITECH_API_KEY"),
   "project": os.getenv("PERMITECH_PROJECT"),
   "logstream": os.getenv("PERMITECH_LOG_STREAM")
}

# Store the headers in the appropriate environment variable
os.environ['OTEL_EXPORTER_OTLP_HEADERS'] = ",".join(
    [f"{k}={v}" for k, v in headers.items()]
)

# Create and configure the OTLP span exporter
exporter = OTLPSpanExporter()
tracer_provider = trace_sdk.TracerProvider()
tracer_provider.add_span_processor(BatchSpanProcessor(exporter))

# Instrument the Google ADK with OpenTelemetry
GoogleADKInstrumentor().instrument(tracer_provider=tracer_provider)

# The following code is the example quickstart from the
# Google ADK documentation
# Mock tool implementation
def get_current_time(city: str) -> dict:
    """Returns the current time in a specified city."""
    return {"status": "success", "city": city, "time": "10:30 AM"}

# Agent definition
root_agent = Agent(
    model='gemini-2.5-flash',
    name='root_agent',
    description="Tells the current time in a specified city.",
    instruction="""
You are a helpful assistant that tells the current time in cities.
Use the 'get_current_time' tool for this purpose.
""",
    tools=[get_current_time],
)

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References

Google ADK (OpenTelemetry)

Set up OpenTelemetry

Log a Google ADK agent using OpenInference

Full example

​Set up OpenTelemetry

​Log a Google ADK agent using OpenInference

​Full example

Set up OpenTelemetry

Log a Google ADK agent using OpenInference

Full example