nexus-mcp — jpi-guard & PII Guard
@nexus-api-lab
Japanese LLM security APIs — prompt injection detection (jpi-guard) + PII masking (PII Guard). Free to start, no credit card required.
Overview
What is nexus-mcp — jpi-guard & PII Guard?
nexus-mcp — jpi-guard & PII Guard is an MCP server that protects LLM pipelines from prompt injection and PII leaks. It provides Japanese‑aware security tools for developers and operators.
How to use nexus-mcp — jpi-guard & PII Guard?
Add the following configuration to your MCP client and connect. No API key is required to start; a free trial of 2,000 requests is included. Use the provided tools (e.g., check_injection, pii_scan) via the MCP interface.
{
"mcpServers": {
"nexus-mcp": {
"url": "https://mcp.nexus-api-lab.com/mcp"
}
}
}
Key features of nexus-mcp — jpi-guard & PII Guard
- Detect prompt injection in Japanese and English
- Validate RAG user input before LLM processing
- Sanitize external content before prompt injection
- Detect and mask 10 categories of PII (Japanese‑aware)
- Issue free trial API keys (2,000 requests)
- Issue separate PII Guard trial keys
Use cases of nexus-mcp — jpi-guard & PII Guard
- Prevent prompt injection attacks in multilingual chat applications
- Ensure RAG pipelines receive safe, validated user queries
- Sanitize scraped or third‑party content before feeding to an LLM
- Mask personally identifiable information in Japanese text before storage or logging
- Rapidly prototype security‑hardened LLM workflows with a free trial key
FAQ from nexus-mcp — jpi-guard & PII Guard
What tools does the server provide?
Six tools: check_injection, validate_rag_input, sanitize_content, pii_scan, get_trial_key, and get_pii_guard_key. Each is described in the README.
Do I need an API key to start?
No. The server works without an initial API key; a free trial of 2,000 requests is available.
What languages are supported for injection and PII detection?
Prompt injection detection supports Japanese and English. PII scanning is Japanese‑aware.
How do I obtain a trial key?
Use the get_trial_key tool to issue a free trial key (2,000 requests) or get_pii_guard_key for a PII Guard trial key.
