List of the Best AI Gateways Software in 2026

What is CloudFlare?

CloudFlare is a easy way to add content delivery network (CDN) functionality to any website. CloudFlare speeds up and protects millions of websites, ranging from personal blogs to large online properties like TechCrunch, Wikipedia, ESPN, BBC News, Yelp, SourceForge , The Onion, Mashable, ...

What is Kong?

Kong is API management software, that allows Web and Mobile applications to access data, content and functions published by 3rd party providers. Kong works with any Public or Private API as well as any type of data source including RESTful HTTP services, Web Services, databases, message ...

What is Helicone?

Helicone is an open-source LLM observability platform that works as a proxy — developers route their LLM API calls through Helicone's gateway with a single URL change, and it automatically logs every request, tracks cost and latency, enables prompt caching, and provides rate limiting. ...

What is Tyk API Management Platform?

Tyk's API Management Platform is a set of technologies, best practices and self-service portals that give companies the necessary tools to manage their API portfolios. The platform can manage all aspects of the API lifecycle for both internal and external APIs, offering greater flexibility for ...

What is Zuplo?

Zuplo is a one-stop-shop for developers to quickly add rate-limiting, authentication and other features to their API, with results delivered in record time. Why expend time and resources to build and maintain an authentication system from scratch when Zuplo offers a convenient and fully-managed ...

What is Vercel AI Gateway?

Vercel AI Gateway routes requests from applications deployed on Vercel to many model providers through one endpoint and one bill, with failover when a provider is unavailable. The vendor states it applies no markup and no platform fee to model tokens; observability and policy add-ons such as ...

What is OpenRouter?

OpenRouter is a hosted routing layer that exposes hundreds of models from many vendors through a single OpenAI-compatible endpoint and one account balance, so a team can switch models without opening a new vendor contract. Requests fall over to another provider when one is rate limited or down, ...

What is LangDB?

LangDB is a hosted AI gateway that routes application traffic across model providers through one endpoint and records every call for cost and latency reporting. It applies guardrails, virtual keys, budgets and fallback rules at the proxy rather than in application code, and exposes traces for ...

What is Higress?

Higress is an open-source gateway built on Envoy and Istio that routes traffic to model providers with token-based rate limiting, fallback, caching and request logging, and runs as an ingress controller in Kubernetes. It is a CNCF Sandbox project and the community edition is free to self-host. ...

What is Requesty?

Requesty is a hosted router that places many model providers behind one API key and bills a flat percentage on top of model cost, with no seat fee and no monthly minimum. It handles fallback when a provider errors, caches repeated requests, and reports spend by user, model and application. A ...

What is Pydantic AI Gateway?

Pydantic AI Gateway routes model calls through one endpoint with per-credential budgets, access rules and request records that feed Pydantic Logfire for tracing. Traffic on a team's own provider keys carries no fee on the personal tier; calls through Pydantic's built-in providers carry a ...

What is WSO2 AI Gateway?

WSO2 AI Gateway is part of WSO2's API platform and puts model providers behind managed API definitions with token-based rate limiting, failover, guardrails and subscription policies, governed with the same catalogue and developer portal as a team's ordinary APIs. Plans meter the number of ...

What is agentgateway?

agentgateway is an Apache-licensed proxy from Solo.io that sits in front of model providers and Model Context Protocol servers, applying identity, authorization, rate limits and traffic policy to agent calls the way a service mesh does for ordinary services. It runs standalone or inside ...

What is Gravitee AI Gateway?

Gravitee AI Gateway governs model and agent traffic inside Gravitee's API platform, applying prompt policy, token quotas, routing and audit records across providers, and exposing the same catalogue and portal used for REST, event and async APIs. It requires Gravitee's agent management module ...

What is Bifrost?

Bifrost is an open-source gateway from Maxim AI that fronts model providers with one API and handles fallback, load balancing, key management and request logging, with Model Context Protocol support for agent calls. The core is free to self-host; the enterprise build adds governance, deployment ...

What is LiteLLM?

LiteLLM is an open-source Python SDK and proxy server that accepts requests in OpenAI's format and forwards them to more than 100 model providers, so application code keeps one request shape when the underlying model changes. The proxy adds virtual API keys per team, spend budgets, rate limits, ...

What is AISIX?

AISIX is an AI gateway built by API7, the company behind Apache APISIX, that fronts model providers with one API and applies routing, retries, rate limits and per-token cost accounting at the proxy. It records request and response bodies for later inspection, which is how its plans are metered, ...

What is F5 AI Gateway?

F5 AI Gateway inspects and routes prompts and model responses in front of self-hosted and vendor-hosted models, applying rate limits, request and response filtering, and policy for sensitive data before traffic reaches a provider. It is sold into organisations already running F5 for application ...

What is Portkey?

Portkey is a gateway that sits between an application and model providers, adding routing and automatic fallback across models, semantic caching, rate limiting, guardrails and cost tracking, with observability over every request. Because it sits in the request path it captures traces without ...

What is Keywords AI?

Keywords AI is an LLM monitoring and observability platform for AI development teams. It supports integration of over 200 LLMs into existing codebases with a single line of code, and provides tools for monitoring performance, running tests, and tracking user analytics across AI applications.