AI Gateway Directory

TensorZero

Open-source LLM gateway, evals and optimization

TensorZero is an open-source stack that combines an LLM gateway with observability, evaluation, optimization and experimentation, so inference data can feed back into prompts and models.

tensorzerogatewayevaluationself-hosted

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OpenRouter

Gateways & routers

One API and one bill for hundreds of models

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Bifrost

Gateways & routers

Fast open-source LLM gateway from Maxim

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Cloudflare AI Gateway

Gateways & routers

Proxy for AI traffic with caching and rate limits

Freemiumcloudflaregateway

Eden AI

Gateways & routers

European AI gateway with one API for many models

Freemiumeden-aieu

Kong AI Gateway

Gateways & routers

AI traffic management on the Kong API gateway

Freemiumkongapi-gateway

LiteLLM

Gateways & routers

Open-source proxy and SDK for 100+ LLM providers

Open sourcelitellmproxy