Kong AI Gateway Alternatives (2026): 7 Options Compared
Kong extends a decade-old API gateway to LLM, MCP and A2A traffic — a natural fit if you already run Kong, heavier if you don't. Seven alternatives cover the API-platform, AI-native and governance-first paths.
Kong AI Gateway is the AI extension of one of the most widely deployed API gateways in the industry. As of AI Gateway 3.14 (April 2026) it governs LLM, MCP and agent-to-agent traffic through the same plugin-based data path that has fronted production REST APIs for a decade — self-managed, or via the Konnect SaaS control plane with customer-hosted data planes. For an organization already standardized on Kong, adding AI traffic to the gateway it already operates is the low-friction move.
Teams shop for alternatives for three reasons: they do not already run Kong and find a full API-gateway platform heavy for LLM routing alone; they want AI-native depth — inventory, prompt management, agent containment, compliance evidence — that a plugin suite does not reach; or they need a specific deployment model, from a pure open-source binary to a hyperscaler-managed service. This page maps all three, with every claim cited as of July 15, 2026.
Why teams look beyond Kong AI Gateway
Credit first. Kong's maturity is real: a 43.8k-star open-source core, a managed Konnect control plane, and — since 3.13 and 3.14 — MCP Tool ACLs, a Kong MCP Registry (Konnect tech preview) and GA agent-to-agent governance with RFC 8693 token exchange. Few gateways cover all three AI traffic types, and none matches Kong's operational track record for API infrastructure. If AI traffic should ride the same gateway as the rest of your APIs, Kong is the default answer.
The first switch driver is scope. Kong is an API-platform product. Teams that only need LLM routing, budgets and guardrails can find the operating model heavier than the job requires, and most of Kong's AI security and analytics plugins — semantic prompt guard, PII sanitizer, advanced AI rate limiting, LLM analytics — are Enterprise or Konnect-gated rather than in the open-source core.
The second is AI-native depth. Kong governs traffic well; it does not inventory the AI systems that never pass through it, generate EU AI Act or ISO 42001 evidence, or contain autonomous agents in a runtime sandbox. Regulated buyers whose requirement is provable control, not just a policy point, often need a governance platform rather than a bigger gateway.
The third is deployment fit. Some teams want a hyperscaler-native option that co-locates with their model provider (Azure API Management), a dependency-free open-source binary (APISIX, Solo.io agentgateway), or a fully managed zero-ops edge service (Cloudflare) — none of which is Kong's shape.
How we chose the alternatives
- Runtime enforcement required: every entry proxies and applies policy to live AI traffic, not just documents it.
- Deployment model stated plainly — Kong's self-managed and Konnect options set the bar; each alternative's hosting and sovereignty posture is named.
- Documented capabilities only, checked against vendor sources as of July 15, 2026.
- Scope fit: entries are graded on the AI-gateway job, with broader API-management or ML-platform capabilities treated as adjacent.
- Migration friction: all entries expose an OpenAI-compatible surface, so applications move by changing a base URL.
The alternatives at a glance
| Product | Best for | Deployment | Open source | Pricing model |
|---|---|---|---|---|
| agentgateway (Solo.io) | Platform engineering and Kubernetes infrastructure teams standardizing LLM, MCP and agent traffic on cloud-native gateways, especially existing Solo.io/Istio shops. | Self-hosted — standalone binary or Kubernetes (Gateway API); no SaaS control plane required | Apache-2.0 (agentgateway ~3.9k stars; kgateway ~5.6k stars, CNCF) | OSS free; Gloo Gateway 2.0 / Solo Enterprise for agentgateway by enterprise quote — no public price list. |
| Azure API Management (AI gateway) | Enterprise platform and integration teams standardized on Azure — especially Azure OpenAI / Microsoft Foundry estates — that want AI traffic governance inside their existing APIM footprint. | Azure-managed PaaS; a containerized self-hosted gateway exists for hybrid data planes, but the control plane stays in Azure | Proprietary (sample labs at Azure-Samples/ai-gateway) | No separate AI-gateway SKU — included in Azure API Management tiers, billed per instance/scale unit; model token costs billed separately by the provider. |
| Portkey | Platform teams standardizing LLM traffic, cost tracking and guardrails across many product teams. | SaaS, hybrid (data plane in your VPC) or air-gapped (enterprise) | MIT (gateway core); platform proprietary | Free dev tier; Pro from $49/mo; enterprise by quote |
| Kosmoy | Regulated enterprises that need governance enforced in the runtime path, in their own infrastructure. | Self-hosted — single-tenant, your own Kubernetes (air-gap capable) | Proprietary | Enterprise subscription; no self-service tier. |
| LiteLLM | Platform teams standardizing LLM access on a self-hosted, OSS-first gateway — with the engineers to run it. | Self-hosted (Docker, Kubernetes, Helm, Terraform) — air-gap supported | MIT core; enterprise/ directory under a commercial license | OSS core free; enterprise license by quote (contact sales), with a free 7-day trial |
| Cloudflare AI Gateway | Developer and platform teams — especially existing Cloudflare/Workers shops — that want a free, zero-ops edge proxy for caching, reliability, multi-provider routing and cost control. | SaaS only — runs on Cloudflare's global edge; no self-hosted or VPC option | Proprietary | Core gateway features free on all plans; log storage tied to the Workers plan; guardrails billed as Workers AI inference; Unified Billing adds a 5% fee on provider credits. |
| Apache APISIX | Platform teams that already run (or want) a self-hosted open-source API gateway and need to add LLM routing, token limits, caching and guardrail plugins without buying a dedicated AI gateway. | Self-hosted (bare metal, Docker, Kubernetes); no SaaS dependency | Apache-2.0 — ASF top-level project, ~16.9k stars | Free (Apache-2.0); commercial support, GUI and enterprise editions sold separately by API7.ai. |
Last verified July 15, 2026 against each vendor's public documentation.
Capability shape vs Kong AI Gateway
Each panel shows one alternative across the same ten capability axes (0–10); the dashed outline is Kong AI Gateway for reference. The further a shape reaches on a spoke, the stronger that capability.
The alternatives, one by one
agentgateway (Solo.io)
Cloud-native AI/agent gateway (Envoy + Rust data planes)agentgateway — the current name for what Solo.io formerly marketed as Gloo AI Gateway — is a Linux Foundation-governed, Rust-based open-source data plane for LLM, MCP and agent-to-agent traffic, sold commercially as Gloo Gateway 2.0 and Solo Enterprise for agentgateway.
The closest architectural peer. Solo.io's agentgateway (formerly Gloo AI Gateway) is a Linux Foundation-governed, Rust-based data plane for LLM, MCP and A2A traffic — the same three-protocol scope as Kong, built cloud-native from the start.
Where it beats Kong AI Gateway
- Open-source core under a neutral foundation (Apache-2.0, CNCF-adjacent), where Kong's equivalent AI plugins are Enterprise/Konnect-gated.
- Kubernetes Gateway API-native with no required SaaS control plane, versus Konnect's hosted plane.
- Purpose-built for agent and MCP traffic rather than retrofitted onto a REST-era gateway.
Where it falls short
- A far smaller ecosystem and operational track record than Kong's decade of production API traffic.
- No AI inventory, compliance-evidence generation or agent sandboxing — it is a data plane, like Kong.
- Enterprise features and support come through Gloo Gateway 2.0 / Solo Enterprise by quote, with no public price list.
Azure API Management (AI gateway)
Cloud API management platform with AI gateway capabilitiesMicrosoft's "AI gateway capabilities in Azure API Management" are not a separate product but a policy set inside APIM for securing, scaling and observing LLM APIs, MCP servers and A2A agent APIs — with token limits, semantic caching, load balancing and Microsoft Foundry integration.
The hyperscaler-native option. Azure API Management's AI gateway capabilities put LLM, MCP and A2A policy inside the API platform Azure shops already run, co-located with Microsoft Foundry models.
Where it beats Kong AI Gateway
- Zero new vendor for Azure-committed teams: token limits, semantic caching and load balancing are policies inside a platform they already license.
- Tight integration with Microsoft Foundry and Entra identity that a third-party gateway cannot match on Azure.
- Enterprise support and stability of a hyperscaler behind the product.
Where it falls short
- The control plane stays in Azure — a hybrid self-hosted gateway exists, but this is not a sovereign, air-gap-capable deployment.
- AI capabilities are a policy set, not a governance platform: no AI inventory, no EU AI Act evidence, no agent containment.
- Practical lock-in to the Azure ecosystem, where Kong is cloud-neutral.
Portkey
AI gateway & LLM-ops control planePortkey is an AI gateway and control plane for production AI — one API to 1,600+ models across 45+ providers, with observability, guardrails, prompt management and MCP/agent access control — acquired by Palo Alto Networks in May 2026.
The AI-native gateway specialist. Portkey delivers the LLM-traffic layer — routing across 1,600+ models, deep observability, guardrails, prompt management — as SaaS, hybrid or air-gapped, now under Palo Alto Networks ownership.
Where it beats Kong AI Gateway
- Deeper native LLM features: 21+ request metrics, prompt management and model breadth Kong's plugins do not reach.
- Developer self-serve with a free tier and $49/month Pro plan, versus Kong's platform onboarding.
- A documented air-gapped enterprise tier for teams that need the data path fully in their network.
Where it falls short
- Not an API gateway: it will not consolidate your REST traffic the way Kong does.
- Post-acquisition roadmap uncertainty (public docs changelog stops April 2026, as of July 15, 2026).
- No AI inventory beyond gateway-routed assets, and no compliance-evidence generation.
Kosmoy
AI management platformA self-hosted control plane for enterprise AI: one inventory, one policy gateway, one audit trail and a containment sandbox for every model, agent and MCP server a company runs.
The governance-first alternative. Where Kong is a policy point, Kosmoy is a control plane: inventory, gateway, compliance evidence and agent containment in one self-hosted, air-gap-capable platform.
Where it beats Kong AI Gateway
- Inventory beyond the gateway: a master agent registry pulls agents from Foundry, Bedrock, Vertex, Salesforce and ServiceNow into one risk-tiered list — Kong inventories what it routes.
- Compliance evidence: EU AI Act, ISO 42001 (aligned) and NIST AI RMF bundles from registry state plus gateway logs, which Kong does not document.
- Architectural containment: kernel-enforced Action Capsule sandboxes with default-deny egress and a kill switch, beyond Kong's ACLs and token exchange.
Where it falls short
- Not an API gateway — it governs AI traffic, not your REST estate.
- No free or open-source tier; procurement is an enterprise sales process, where Kong's core is OSS.
- A younger operational track record than Kong's decade of production API infrastructure.
LiteLLM
Open-source LLM proxy & AI gatewayLiteLLM is BerriAI's open-source proxy and Python SDK that puts 100+ LLM providers behind one OpenAI-compatible API — with spend tracking, guardrails, MCP and A2A gateways, and an enterprise license that adds SSO, RBAC and audit logs on the same self-hosted deployment.
The open-source gateway core. LiteLLM covers the AI-routing job — 100+ providers, budgets, MCP and A2A gateways, air-gap support — as MIT-licensed software at zero license cost.
Where it beats Kong AI Gateway
- Free and open source for the entire core gateway, versus Kong's Enterprise-gated AI plugins.
- Provider breadth (100+) and weekly community releases exceed Kong's AI plugin coverage.
- A dependency-light proxy that is quick to stand up when you do not already run Kong.
Where it falls short
- Not an API gateway: no REST-traffic consolidation, no decade of production hardening.
- You own all operations; there is no managed control plane equivalent to Konnect.
- Enterprise features (SSO, audit logs, RBAC) require a quote-based license, and the support team is smaller than the surface area.
Cloudflare AI Gateway
Edge AI gatewayCloudflare AI Gateway is an edge proxy between applications and major AI providers, adding caching, rate limiting, spend limits, logging and analytics, dynamic routing with fallbacks and retries, stored provider keys and Llama-Guard-based guardrails on Cloudflare's global network.
The zero-ops floor. If Kong is more platform than you need for AI alone, Cloudflare's free edge gateway covers caching, rate limits, routing, retries and spend limits with nothing to operate.
Where it beats Kong AI Gateway
- Cost and simplicity: core features free on all plans, running on Cloudflare's global edge.
- No infrastructure to run or patch, versus operating Kong data planes.
- Enforced dollar spend limits (June 2026) with per-metadata scoping.
Where it falls short
- Sovereignty is categorical: SaaS-only, traffic transits Cloudflare's edge, documented as incompatible with Regional Services — versus Kong's self-managed and air-gap-marketed options.
- No MCP or agent gateway, no RBAC hierarchy — a narrower AI-traffic scope than Kong 3.14.
- Not an API gateway for your broader estate.
Apache APISIX
Open-source API gateway with an AI plugin suiteApache APISIX is a high-performance NGINX/Lua-based open-source API gateway whose AI-gateway capability is a plugin suite — ai-proxy, ai-proxy-multi, ai-rate-limiting, ai-prompt-guard, ai-cache and more — for proxying, load-balancing, limiting and guarding LLM and MCP traffic.
The open-source API-gateway sibling. Like Kong, Apache APISIX is a mature API gateway whose AI capability is a plugin suite — ai-proxy, ai-rate-limiting, ai-prompt-guard, ai-cache — but under a fully permissive foundation license.
Where it beats Kong AI Gateway
- Apache-2.0 top-level ASF project (~16.9k stars) with AI plugins in the open-source core, not gated behind an enterprise tier.
- High-performance NGINX/Lua data path with no SaaS dependency.
- A genuine like-for-like swap for teams that want Kong's model without Kong's commercial packaging.
Where it falls short
- Its AI plugin suite is narrower than Kong 3.14's MCP registry and A2A governance, and its commercial backer's AI-native gateway (AISIX) is a separate product.
- No AI inventory, compliance evidence or agent containment — it is a gateway, like Kong.
- Enterprise GUI, support and advanced editions come from API7.ai separately.
Decision guide
Questions buyers ask
Is Kong AI Gateway better than its alternatives?
For one job, clearly: if you need a single gateway for REST, LLM, MCP and A2A traffic with a decade of production hardening, Kong is hard to beat, and as of AI Gateway 3.14 (April 2026) it covers all three AI protocols. The alternatives win when your requirement is narrower (AI traffic only), deeper (AI-native features or governance evidence), cheaper (open-source cores without an Enterprise gate), or a different deployment shape (Azure-native, zero-ops edge).
What is the best open-source alternative to Kong AI Gateway?
For a like-for-like API-gateway model, Apache APISIX (Apache-2.0, ~16.9k stars) and Solo.io's agentgateway (Apache-2.0, Linux Foundation-governed) are the closest — both keep AI plugins in the open-source core rather than gating them behind an enterprise tier. If you only need the LLM-proxy layer, LiteLLM (MIT) is the largest open-source community. All three self-host; none replaces Kong's broader API-management platform.
Can I use my existing API gateway for LLM traffic instead of a dedicated one?
Often, yes — Kong, APISIX, Azure API Management and Solo.io all add AI capabilities to a general-purpose gateway, which avoids running a second stack. The trade-off is depth: plugin suites handle routing, rate limiting and basic guardrails well, but they do not inventory AI systems outside the gateway, generate regulatory evidence, or contain autonomous agents. If those are requirements, a governance platform such as Kosmoy complements rather than replaces the API gateway.
What does Kong AI Gateway cost compared to alternatives?
Kong's open-source core is free; its advanced AI plugins and the Konnect control plane are paid (Konnect Plus pricing is published, enterprise is quoted). Among alternatives, APISIX, Solo.io agentgateway, LiteLLM and Cloudflare's core gateway are free to self-host or use (enterprise features by quote), Portkey starts free with paid tiers, Azure API Management is metered inside Azure, and Kosmoy is enterprise-quoted. As always, count the engineers who operate whichever you choose.
Can I run Kosmoy and Kong together?
Yes, and the split is clean: Kong (or any API gateway) fronts your REST and AI traffic operationally, while Kosmoy provides the governance layer — a risk-tiered inventory of every AI system, compliance evidence, and containment for autonomous agents. Both are OpenAI-compatible, so a model behind Kong can also be governed as a Kosmoy gateway destination.
Sources
Every factual claim about another vendor on this page traces to that vendor's own published material or a named third-party source below.
- Kong AI Gateway product page — accessed July 15, 2026
- Solo.io agentgateway — accessed July 15, 2026
- Azure API Management — AI gateway capabilities — accessed July 15, 2026
- Apache APISIX — accessed July 15, 2026
- Kosmoy AI Gateway — accessed July 15, 2026
- Kong AI Gateway 3.14 release blog (Agent Gateway GA, A2A) — accessed July 15, 2026
- A2A support press release (PR Newswire, April 2026) — accessed July 15, 2026
- MCP Tool ACLs announcement (AI Gateway 3.13, January 2026) — accessed July 15, 2026
- Kong MCP Registry press release (February 2026) — accessed July 15, 2026
- Konnect LLM usage reporting docs — accessed July 15, 2026
- Kong EU AI Act positioning blog — accessed July 15, 2026
- Kong/kong GitHub repository — accessed July 15, 2026
- Kong pricing — accessed July 15, 2026
- agentgateway GitHub repository — accessed July 15, 2026
- kgateway GitHub repository (CNCF) — accessed July 15, 2026
- Linux Foundation welcomes agentgateway (Aug 2025) — accessed July 15, 2026
- Solo.io — Introducing Gloo Gateway 2.0 — accessed July 15, 2026
- Gloo AI Gateway docs overview — accessed July 15, 2026
- TechCrunch — Solo.io $135M at $1B valuation (2021) — accessed July 15, 2026
- llm-token-limit policy — accessed July 15, 2026
- llm-content-safety policy — accessed July 15, 2026
- AI Gateway in APIM available in Microsoft Foundry (preview) — accessed July 15, 2026
- What's new in Azure API Management at Microsoft Build 2026 — accessed July 15, 2026
- Azure API Management pricing — accessed July 15, 2026
- Portkey open-source gateway repository — accessed July 15, 2026
- Portkey docs — what is Portkey — accessed July 15, 2026
- Portkey docs — plan & feature comparison (SaaS / hybrid / air-gapped) — accessed July 15, 2026
- Portkey docs — observability — accessed July 15, 2026
- Portkey docs — guardrails — accessed July 15, 2026
- Portkey docs — MCP gateway — accessed July 15, 2026
- Portkey pricing — accessed July 15, 2026
- Palo Alto Networks press release — Portkey acquisition completed (May 29, 2026) — accessed July 15, 2026
- Kosmoy Platform — accessed July 15, 2026
- Kosmoy Action Capsule — accessed July 15, 2026
- Kosmoy AI Compliance — accessed July 15, 2026
- LiteLLM GitHub repository (stars, license, activity) — accessed July 15, 2026
- LiteLLM README (100+ providers, MCP/A2A, performance claims) — accessed July 15, 2026
- LiteLLM enterprise docs (features, SLAs, air-gap, pricing by quote) — accessed July 15, 2026
- LiteLLM release notes index (2026 releases) — accessed July 15, 2026
- Rust migration announcement (issue #31263, June 25, 2026) — accessed July 15, 2026
- Guardrail policy templates (incl. offline/air-gapped mode) — accessed July 15, 2026
- MCP deployment docs (registry, exposure controls, air-gap guidance) — accessed July 15, 2026
- litellm-agent-runtime (per-session VM coding-agent runtime) — accessed July 15, 2026
- Cloudflare AI Gateway docs — accessed July 15, 2026
- AI Gateway pricing — accessed July 15, 2026
- Guardrails feature docs — accessed July 15, 2026
- Changelog — spend limits (June 5, 2026) — accessed July 15, 2026
- Changelog — unified REST API (May 21, 2026) — accessed July 15, 2026
- Data Localization Suite docs (AI Gateway compatibility) — accessed July 15, 2026
- Blog — scaling AI Gateway to billions of logs — accessed July 15, 2026
- Blog — AI Security for Apps GA — accessed July 15, 2026
- apache/apisix GitHub repository — accessed July 15, 2026
- ai-proxy plugin docs — accessed July 15, 2026
- ai-proxy-multi plugin docs — accessed July 15, 2026
- ai-lakera-guard plugin docs — accessed July 15, 2026
- mcp-bridge plugin docs — accessed July 15, 2026
- API7.ai — AISIX announcement — accessed July 15, 2026
Need governance, not just a swap?
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Or email sales@kosmoy.com.