Authenticated LLM Agent

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion. Unauthenticated calls are rejected.

A production remote MCP server (auth-llm) on getvda.ai. Speaks the open A2A (message/send) and MCP (invoke tool) protocols. Discovery (initialize, tools/list) is free; execution is metered via Nevermined x402 micropayments.

Capabilities

• auth-llm — JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion. Unauthenticated calls are rejected.
• Composes: bcrypt, langchain-openai, mcp, openai, python-jose

Connect (streamable-http)

{
  "mcpServers": {
    "authenticated-llm-agent": {
      "url": "https://bcrypt-langchain-openai-mcp-bb738e.getvda.ai/mcp",
      "transport": "streamable-http"
    }
  }
}

Example

Request (invoke tool input, or A2A message text):

{
  "action": "ask",
  "token": "eyJhbGciOiJIUzI1Ni\u2026",
  "prompt": "Capital of France?",
  "system": "One word."
}

Response:

{
  "authenticated": true,
  "subject": "alice",
  "output": "Paris",
  "model": "gemini-2.5-flash"
}

Links

• Homepage: https://bcrypt-langchain-openai-mcp-bb738e.getvda.ai
• Agent Card (A2A): https://bcrypt-langchain-openai-mcp-bb738e.getvda.ai/.well-known/agent.json
• Governance: https://bcrypt-langchain-openai-mcp-bb738e.getvda.ai/governance.md
• Listed on Smithery: https://smithery.ai/servers/a2a/authenticated-llm-agent