MCP-Gateway
I built an open-source MCP Gateway — caches, secures, and hardens every tool call between your AI agent and MCP servers. Zero code changes needed.
Live demo (no signup): https://mcp-gateway-production-c0f5.up.railway.app/
GitHub: https://github.com/Arnab758/mcp-gateway
What it does:
• Smart caching — repeated tool calls return in <1ms instead of 1-3s
• Security blocklist — block dangerous tools (exec_command, bash) at the network boundary
• Agentic loop killer — detects runaway agents and throttles/blocks before they burn tokens
• Live observability — every tool call traced, analyzed, and displayed in real-time
• Circuit breaker + auto-recovery — crashed servers restart in under 1 second
The demo page has an interactive playground where you can send real tool calls and see the pipeline in action. Try sending "list_files" twice — first is a cache miss, second is a cache hit in <1ms.
Built in Go.
Would love feedback from anyone building with MCP agents
Live demo (no signup): https://mcp-gateway-production-c0f5.up.railway.app/
GitHub: https://github.com/Arnab758/mcp-gateway
What it does:
• Smart caching — repeated tool calls return in <1ms instead of 1-3s
• Security blocklist — block dangerous tools (exec_command, bash) at the network boundary
• Agentic loop killer — detects runaway agents and throttles/blocks before they burn tokens
• Live observability — every tool call traced, analyzed, and displayed in real-time
• Circuit breaker + auto-recovery — crashed servers restart in under 1 second
The demo page has an interactive playground where you can send real tool calls and see the pipeline in action. Try sending "list_files" twice — first is a cache miss, second is a cache hit in <1ms.
Built in Go.
Would love feedback from anyone building with MCP agents
