PostHog Integration

This integration method is maintained but no longer actively developed. For the best experience and latest features, use our new AI Gateway with unified API access to 100+ models.

How to Integrate Helicone with PostHog

Create an account for PostHog here.

Add two new headers

Similar to how you set Helicone-Auth header, add two new headers Helicone-Posthog-Key and Helicone-Posthog-Host with your API key and PostHog host.

You can find both your API key and PostHog host in your PostHog project settings.

Python
Node.js
Terminal

client = OpenAI(
	api_key="<your-api-key-here>", # Replace with your OpenAI API key
	base_url="https://oai.helicone.ai/v1" # Set the API endpoint
	default_headers= {
		"Helicone-Auth": f"Bearer {HELICONE_API_KEY}",
		"Helicone-Posthog-Key": "<ph_project_api_key>",
		"Helicone-Posthog-Host": "<ph_client_api_host>", # (Optional)
	}
)

import { Configuration, OpenAIApi } from "openai";

const configuration = new Configuration({
apiKey: process.env.OPENAI_API_KEY,
basePath: "https://oai.helicone.ai/v1",
baseOptions: {
	headers: {
		"Helicone-Auth": `Bearer ${process.env.HELICONE_API_KEY}`,
		"Helicone-Posthog-Key": "<ph_project_api_key>",
		"Helicone-Posthog-Host": "<ph_client_api_host>",
	},
},
});

const openai = new OpenAIApi(configuration);

curl --request POST \
	--url https://oai.helicone.ai/v1/chat/completions \
	--header "Authorization: Bearer $OPENAI_API_KEY" \
	--header "Content-Type: application/json" \
	--header "Helicone-Posthog-Key: Bearer $POSTHOG_PROJECT_API_KEY" \
	--header "Helicone-Posthog-Host: Bearer $POSTHOG_CLIENT_API_HOST" \
	--header "Helicone-Auth: Bearer $HELICONE_API_KEY" \
	--data '{
		"model": "gpt-4o-mini",
		"messages": [
			{
				"role": "system",
				"content": "Say Hello!"
			}
		],
		"temperature": 1,
		"max_tokens": 30
	}'

Helicone events will now be exported into PostHog as soon as they’re available.

Create a dashboard in PostHog

Create your own dashboard, or use our template to start.

Go to the dashboard tab in PostHog.
Click the New dashboard button in the top right.
Select LLM metrics – Helicone from the list of templates, or Blank dashboard to start from scratch.

Getting Started

AI Gateway

Observability & Analytics

Prompt Management

Legacy Integrations

References

How to Integrate Helicone with PostHog

Getting Started

AI Gateway

Observability & Analytics

Prompt Management

Legacy Integrations

References

​How to Integrate Helicone with PostHog

How to Integrate Helicone with PostHog