Both protect APIs. One adds MCP. The other adds economics.
Zuplo is a mature API gateway that added MCP support — great for exposing your APIs to AI agents securely. SatGate is purpose-built for the agent economy — with hard budget enforcement, per-tool cost attribution, and API monetization. Zuplo helps you expose APIs. SatGate helps you survive after you do.
| Feature | SatGate | Zuplo |
|---|---|---|
| Hard budget enforcement | ||
| Per-tool cost attribution | ||
| API monetization (L402) | ||
| Fiat billing (Fiat402) | ||
| MCP Server Handler | ||
| Traditional API gateway | ||
| Rate limiting | ||
| GraphQL-to-MCP | ||
| SOC 2 certified | ||
| Open source | ||
| Self-hosted option |
SatGate
Purpose-built for agent economics. Hard budget caps, per-tool cost profiles, spend governance, API monetization with L402/Fiat402.
Zuplo
Traditional API management. Rate limiting, authentication, request validation. No native economic controls or API monetization.
SatGate
MCP + economics. Parse MCP tool calls, apply per-tool cost profiles, enforce budgets at the tool level. Cost attribution by tool name.
Zuplo
MCP exposure. Turn your existing APIs into MCP tools with their Server Handler. Great for making APIs agent-accessible.
SatGate
Open-core, self-hostable. Run in your VPC, your Kubernetes cluster, or use SatGate Cloud. Full control over your data.
Zuplo
Managed SaaS. Edge-deployed, globally distributed. Less infrastructure management, but data flows through their network.
Zuplo is excellent at what it does — secure API management with MCP support. But when AI agents start calling your APIs autonomously, who controls the spend?
Rate limiting tells you "how many requests per minute." Economic controls tell you "how many dollars per agent." That's the layer SatGate adds.
Start with free Observe mode. See what your agents are actually spending.