# Fraterna.ai > Pooled inference for Venice API keys. Fraterna is an OpenAI-compatible API proxy that lets small groups share Venice API capacity in invite-only groups called consorzi. Members keep ownership of their own keys; the proxy rotates requests across the pool so one member's daily rate limit is never the bottleneck. ## What Fraterna does - Pools Venice API keys into shared groups (consorzi) with invite-only access - Routes OpenAI-compatible requests across contributed keys with automatic rotation - Skips depleted, invalid, or rate-limited keys when possible - Lets members pay for extra seats and lifetime extensions in USDC on Base ## Who it's for - Developers and researchers who use the Venice API and want more capacity than a single key provides - Small teams building projects together who need shared inference budget - Venice API users who want to collaborate without exposing their API keys ## Key pages - [Homepage](https://fraterna.ai/): Product overview and sign-in - [Documentation](https://fraterna.ai/docs): How consorzi work, API usage, seats, lifetime, and privacy - [Pricing](https://fraterna.ai/pricing.md): Machine-readable pricing for AI agents - [Sitemap](https://fraterna.ai/sitemap.xml): Public HTML pages available for indexing ## API - Base URL: `https://fraterna.ai/api/v1` - OpenAI-compatible endpoints: chat completions, image generation, models - Authentication: Bearer token using your Venice API key - A Venice API key must belong to an active consorzio to use shared capacity ## Pricing - Joining and creating a consorzio: free with a Venice API key (3 seats, 30 days included) - Additional seats: $1.00 per seat (USDC on Base) - 30-day lifetime extension: $0.50 per seat (USDC on Base) - See [pricing.md](https://fraterna.ai/pricing.md) for full details