# Fenra ## Docs - [Authentication](https://docs.fenra.io/api-reference/authentication.md): How to authenticate with the Fenra API - [POST /usage/transactions](https://docs.fenra.io/api-reference/endpoint/create.md): Ingest AI usage transactions for cost tracking. Costs are calculated automatically based on the provider's pricing. Supports both single transaction and bulk submissions. Use this endpoint after each AI provider call to track cost. - [Errors](https://docs.fenra.io/api-reference/errors.md): API error codes and how to handle them - [API Reference](https://docs.fenra.io/api-reference/introduction.md): Everything you need to integrate with the Fenra API - [Setting Up Alerts](https://docs.fenra.io/guides/alerts.md): Get notified when AI spending crosses thresholds - [API Keys](https://docs.fenra.io/guides/api-keys.md): Creating and managing API keys - [Custom Dashboards & Saved Views](https://docs.fenra.io/guides/custom-dashboards.md): Save and share filter configurations - [Sending Transactions](https://docs.fenra.io/guides/transactions.md): How to track AI usage with Fenra - [Fenra](https://docs.fenra.io/index.md): AI usage and cost tracking for teams that ship fast - [Claude (Anthropic)](https://docs.fenra.io/integrations/anthropic.md): Track costs for Claude 3.5, Claude 3, and all Anthropic models - [AWS Bedrock](https://docs.fenra.io/integrations/bedrock.md): Track costs for Claude, Llama, Titan, and all models hosted on AWS Bedrock - [Custom Providers](https://docs.fenra.io/integrations/custom.md): Track costs for self-hosted models or unsupported providers - [DeepSeek](https://docs.fenra.io/integrations/deepseek.md): Track costs for DeepSeek models - [Gemini (Google)](https://docs.fenra.io/integrations/google.md): Track costs for Gemini 2.0, Gemini 1.5 Pro, Gemini 1.5 Flash, and all Google AI models - [OpenAI](https://docs.fenra.io/integrations/openai.md): Track costs for GPT-4, GPT-3.5, o1, DALL-E, Whisper, and all OpenAI models - [xAI](https://docs.fenra.io/integrations/xai.md): Track costs for Grok and all xAI models - [Alerts](https://docs.fenra.io/product-overview/alerts.md): Get notified before AI costs spiral out of control - [Activity](https://docs.fenra.io/product-overview/cost-explorer/activity.md): See every transaction in real-time - [Cost Breakdown](https://docs.fenra.io/product-overview/cost-explorer/breakdown.md): Analyze spending across any dimension - [Custom Dashboards](https://docs.fenra.io/product-overview/custom-dashboard.md): Create focused views for your specific use cases - [Dashboard](https://docs.fenra.io/product-overview/dashboard.md): Your command center for AI spending visibility - [Reports](https://docs.fenra.io/product-overview/reports.md): Generate and schedule cost reports for your team - [Quickstart](https://docs.fenra.io/quickstart.md): Send your first AI transaction to Fenra in under 5 minutes ## OpenAPI Specs - [openapi](https://docs.fenra.io/api-reference/openapi.json) ## Optional - [GitHub](https://github.com/fenra-io) - [Support](mailto:ajdin@fenra.io)