PostHog Integration

AVELIN API works with PostHog — Developer tools designed to help product engineers build successful products with AI-powered analytics.

PostHog is an open-source product analytics platform that has added AI-powered insights to its already comprehensive toolkit. Its killer feature is AI-generated product insights — PostHog doesn't just show you dashboards, it uses AI to surface patterns, anomalies, and actionable recommendations from your user behavior data. Ask "why did retention drop last week?" and PostHog's AI analyzes the data and gives you a hypothesis.

Built for product engineers, growth teams, and startup founders who want analytics without a dedicated data team. PostHog combines session recordings, feature flags, A/B testing, and funnels with AI that helps you understand what the data means. Use AVELIN as the AI backbone for PostHog's insight generation engine.

Why AVELIN + PostHog? Monitor and optimize your AVELIN API usage with powerful observability tools — track costs, latency, and model performance in real-time.

Quick Setup

Step 1: Get your AVELIN API key

Sign up at avelin.ai and generate an API key. It will look like sk-ave...xxxx.

Step 2: Install/Configure PostHog

Refer to the PostHog documentation for installation and setup instructions.

Step 3: Point PostHog to AVELIN

Configure PostHog to monitor your AVELIN API calls:

# Example: Set AVELIN as the upstream provider
export OPENAI_API_BASE=https://api.avelin.ai/v1
export OPENAI_API_KEY=sk-avelin-YOUR_KEY

API Reference

EndpointURL
OpenAI-compatiblehttps://api.avelin.ai/v1
Anthropic-compatiblehttps://api.avelin.ai

What to Monitor

MetricWhy it matters
Cost per requestTrack spending across models and identify cost optimization opportunities
Latency (TTFT, total)Measure time-to-first-token and total response time
Token usageMonitor input/output tokens to optimize prompts
Error ratesTrack API failures and provider issues
Model performanceCompare quality across different AVELIN models

Why AVELIN for PostHog?

  • Rich metadata: AVELIN provides detailed request/response data for analysis
  • Multi-model tracking: Monitor all 9 AVELIN models from one dashboard
  • Cost visibility: See exact token usage and costs per request
  • Automatic failover: PostHog sees seamless provider switching

Troubleshooting

IssueSolution
No data showingVerify PostHog is configured with correct AVELIN endpoint
Missing metadataCheck that request/response logging is enabled
High latency in dashboardThis may reflect PostHog's processing, not AVELIN's actual latency
Cost discrepanciesVerify token counting matches AVELIN's usage reporting