How is an MCP Server different from a traditional API gateway?
How is an MCP Server different from a traditional API gateway?
While traditional API gateways expose specific, callable endpoints, an MCP Server orchestrates sequences of tasks and decision logic, allowing AI agents to complete entire workflows dynamically.
| Comparison | API Gateway | MCP Server |
| Target | Developers | AI Agents |
| Granularity | Single API functions | Complex workflows/tasks |
| Input | Fixed parameters | Flexible task schema (JSON) |
| Control Flow | Client-controlled | Agent-controlled |
| Example | GET /scan-result?id=123 | {“task”: “analyze_suspicious_email”, “email_id”: “123”} |
In essence, APIs tell the system what to do, whereas MCP lets agents decide how to do it.