nexus mcp for ChatGPT
io.github.nexus-api-lab/nexus-mcp
Japanese LLM security — prompt injection detection (jpi-guard) + PII masking (PII Guard). Free.
client:ChatGPT
transport:streamable-http
Install nexus mcp in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.nexus-api-lab.com/Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs