API gateways govern apps calling endpoints. LLM gateways route and meter model requests. Neither knows the user behind an agent or which tools that agent should see. Willow is an MCP gateway built for that layer: identity-aware tool access, runtime guards and audit for every agent action, alongside the gateways you already run.
Zuplo applies one programmable policy engine to API, LLM and MCP traffic for the apps you build. Willow governs how every employee and agent in the org reaches internal tools.
Tyk extends its API management control plane to MCP and agent traffic. Willow is built for the agent layer: identity-aware tool access, shadow AI discovery and employee self-service.
LiteLLM routes and meters LLM calls, with MCP traffic alongside. Willow governs which tools each agent and user can reach, with identity, approvals and audit. Model layer vs tool layer.
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