Kong

Kong is a unified API and AI connectivity platform designed for organizations building, deploying, and governing agentic infrastructure alongside traditional API traffic. It serves platform engineering teams, API program managers, and AI/ML engineers who need to secure, manage, and monetize multi-modal traffic—REST, HTTP, LLMs, Kafka, WebSockets, gRPC, GraphQL—under one control plane. The platform targets companies like Wayfair, ING Bank, Sony Interactive Entertainment, United Airlines, Nasdaq, HSBC, BMW, Goldman Sachs, PayPal, Delta Fiber, Mistral AI, and ANZ, indicating its fit for enterprises with high-volume, business-critical API and AI workloads.

Kong’s architecture centers on Kong Konnect, a SaaS control plane that manages multiple gateway types: Kong API Gateway, Kong AI Gateway, Kong Event Gateway, and the newly announced Kong Agent Gateway for agent-to-agent (A2A) traffic. The AI Gateway provides a universal LLM API supporting up to 5 unique LLM models, unlimited MCP server proxies, token-based rate limiting, semantic caching, PII sanitization, prompt guardrails, and token-level cost analytics. The API Gateway supports REST, HTTP, gRPC, GraphQL, WebSockets, and Kafka. The Event Gateway handles event-driven architectures. Kong Insomnia is a standalone API client for design and testing. Kong Metering & Billing enables usage-based monetization. The platform offers three gateway deployment models: Serverless (up to 5 gateways on Plus), Hybrid (up to 2 on Plus), and Dedicated Cloud (up to 2 on Plus). Advanced analytics cover 1M API requests/month on Plus, with 10M requests stored. RBAC is included; SSO and audit logging require Enterprise.

Kong competes directly with API management platforms like Apigee (Google Cloud), AWS API Gateway, Azure API Management, and open-source alternatives like Apache APISIX (backed by API7.ai). Unlike cloud-vendor gateways, Kong offers multi-cloud and hybrid deployment flexibility. Compared to APISIX, Kong Konnect provides a managed SaaS experience with built-in AI Gateway capabilities, but at a higher per-gateway cost. Kong’s AI Gateway differentiates it from traditional API gateways by adding LLM-specific controls (token budgets, semantic caching, A2A governance). The platform is also used by Mistral AI, signaling traction in the AI ecosystem. Kong’s primary weakness versus open-source alternatives is vendor lock-in and cost at scale.

Honest trade-offs: Kong’s Plus tier limits analytics to 1M requests/month—teams exceeding this must upgrade to Enterprise (custom pricing). The free trial is only 30 days with no credit card, but after that, all gateways incur monthly charges. Hybrid gateways are capped at 2 on Plus, forcing larger deployments to Enterprise. The AI Gateway’s 5-model limit on Plus may constrain teams needing broader LLM diversity. Support on Plus is email-only with a 2-business-day SLA; Enterprise is required for phone or chat support. Kong’s pricing is per-gateway, not per-request, which can be unpredictable for spiky traffic patterns. The platform’s breadth (API, AI, event, metering) can overwhelm teams that only need basic API management.

Kong Konnect offers a 30-day free trial (no credit card required). The Plus tier is charged per gateway per month, with up to 5 Serverless Gateways, up to 2 Hybrid Gateways, and up to 2 Dedicated Cloud Gateways included. Enterprise tier has custom pricing billed annually. All tiers are available via AWS Marketplace.