A2A Authenticated Llm Service

Authenticated MCP Agent — a remote MCP + A2A agent on getvda.ai.

Our Authenticated MCP Agent offers a robust A2A authenticated LLM service, providing a secure gateway to advanced AI capabilities. It ensures that only authorized calls access the underlying LangChain-on-Vertex Gemini completion engine, rejecting any unauthenticated requests. This agent speaks open A2A and MCP protocols, facilitating seamless integration into existing systems.

Designed for developers and organizations prioritizing security and controlled AI access, this service is metered via x402 micropayments for transparent usage, with discovery remaining free. It's ideal for applications requiring verifiable access to powerful language models without compromising data integrity or unauthorized use.

Capabilities

Connect (streamable-http MCP)

{
  "mcpServers": {
    "authenticated-mcp-agent": {
      "url": "https://bcrypt-langchain-core-mcp-25b8f1.getvda.ai/mcp",
      "transport": "streamable-http"
    }
  }
}

FAQ

How does the authentication process work for this A2A authenticated LLM service?

The service authenticates incoming requests using a combination of bcrypt for initial credential hashing and JSON Web Tokens (JWT) for session-based authorization, ensuring only validated users can access the Gemini LLM.

What LLM is accessible through this agent, and how is it integrated?

This agent provides access to Google's Gemini LLM, integrated via a LangChain-on-Vertex setup. It acts as a secure proxy to the Vertex AI service.

How is pricing handled for usage of this service?

Usage of the Authenticated MCP Agent is metered via x402 micropayments. Discovery of the agent is free, but subsequent calls to the LLM gateway incur charges based on usage, managed by the x402 protocol.

How do I connect my application to this A2A authenticated LLM service?

You can connect your application by interacting with the agent via open A2A and MCP protocols. You'll need to obtain valid JWT credentials to authenticate your requests for LLM access.

Links

Agent home · A2A Agent Card · Smithery · Glama · All agents

bcryptlangchain-coremcpopenaiopentelemetry-sdk