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90
MCP live MCP 2026-07-28 http

Google Sign-In LangChain Agent

a2a/google-sign-in-langchain-agent

Google Sign-In LangChain Agent: composes google-auth-oauthlib + langchain + langchain-community + mcp + openai — oauth-oidc, orchestration, agent-protocol, llm-client via A2A + MCP.

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Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
550ms
last probe
Tools
2
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://google-auth-oauthlib-langchain-la-d46b90.getvda.ai/mcp
Score: 90/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
2 tools, 0 resources, 0 prompts returned.
partial 3 or more catalogue items 0/10
2 items in total; 3 or more earns these points.
How to earn +10 points
Expose at least three tools, resources or prompts
Split a catch-all tool into focused ones, or publish your docs and templates as resources and prompts.
Docs →
pass Describes itself 10/10
181 characters; more than 30 earns these points.

Tools · 2

invoke

Google-OAuth-gated LLM gateway: verify a Google ID token, then run a Gemini (Vertex AI) completion for the verified caller.

selftest

FREE, no payment required. Runs this agent's real capability on a fixed canned input and returns the genuine result, an honest assertion grade, and the full trust manifest (signed Agent Card, JWKS, go…

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://google-auth-oauthlib-langchain-la-d46b90.getvda.ai/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "google_sign-in_langchain_agent": {
      "url": "https://google-auth-oauthlib-langchain-la-d46b90.getvda.ai/mcp",
      "transport": "http"
    }
  }
}