Helicone

Helicone — Developer Documentation Highlights

Integration Helicone is designed for minimal-friction adoption. Integration requires only a base URL change — no new SDK, no major refactor. Point your existing OpenAI, Anthropic, or other supported client at Helicone's proxy endpoint and pass your Helicone API key as a header.

API A full REST API is available for programmatic access to request logs, usage metrics, prompt versions, and gateway configuration. This enables CI/CD pipeline integration, custom dashboards, and automated alerting workflows.

AI Gateway Features (configurable via API/headers):

• Caching — reduce redundant LLM calls and latency
• Rate Limiting — enforce per-user or per-key request limits
• Automatic Fallbacks — route to backup providers on failure

Supported Integrations: OpenAI, Anthropic, Azure, LiteLLM, Anyscale, Together AI, OpenRouter

Prompt Management & Experimentation

• Version-controlled prompt management
• Dataset creation from logged requests
• Experimentation tooling for A/B testing prompt variants

Self-Hosting The full platform is open-source under the Apache 2.0 license and self-hostable. The GitHub repository has 6,229+ stars. Enterprise deployments support on-premises hosting, SAML SSO, and custom MSAs.

Compliance: SOC-2 and HIPAA available on Team ($799/mo) and Enterprise (custom) plans.