An API gateway that actually understands MCP, not just proxies it

What it does

Tyk Gateway is a Go-based, cloud-native reverse proxy that fronts REST, GraphQL, gRPC, TCP, SOAP and now MCP traffic with authentication, rate limiting, quotas, analytics and access control. It’s been in production since 2014 and claims to be built for low latency at thousands of requests per second on a single CPU. The open source edition is “batteries-included” with no feature lockout — the paid tiers mostly add a management control plane, GUI and developer portal.

The interesting bit

Most gateways treat MCP as opaque HTTP and shrug. Tyk parses the JSON-RPC 2.0 calls underneath and applies policy per tool, resource and prompt — so you can rate limit one tool and block another. It can also generate an MCP proxy straight from an existing REST API definition, no separate MCP server required.

Key highlights

• Protocol coverage: REST (native OpenAPI/OAS import), GraphQL, gRPC, TCP, SOAP and MCP
• Per-tool, per-resource MCP access control for AI agent traffic
• Standard auth: JWT, bearer tokens, basic auth, client certificates
• Plugin middleware in Python, JavaScript, Go, or any gRPC-capable language
• Kubernetes-native declarative management via the separate Tyk Operator; hitless reloads for config changes
• Companion OSS ecosystem: Tyk Pump (analytics), Identity Broker (third-party login), Tyk AI Studio (LLM routing, budgets, guardrails)

Caveats

• Dual-licensed: everything outside the ee folder is MPL 2.0, but enterprise features live behind that boundary
• Open source analytics are raw data only — you’ll want Tyk Pump and a backend to make them useful
• The “fastest gateway on the planet” claim links to Tyk’s own benchmarks, so take it as vendor math

Verdict

A solid pick if you’re running serious API traffic and want MCP governance without bolting a separate AI proxy on top. If you just need a lightweight ingress for a handful of services, it’s more machine than you need.