A2A REGISTRY·AGENT RECORD·557cc65e-ada0-4b88-90c5-1ebc1da9fff0

Provider

VDA / GOSCE

Google OAuth LangChain Agent

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

Observed evidence

Task verified

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
557cc65e-ada0-4b88-90c5-1ebc1da9fff0
Canonical card
https://google-auth-oauthlib-langchain-la-c1a755.getvda.ai/.well-known/agent-card.json
Endpoint
https://google-auth-oauthlib-langchain-la-c1a755.getvda.ai/a2a/
Protocol version
0.3.0
Agent version
0.1.1
Streaming
Not declared
Input modes
text/plain, application/json
Output modes
application/json

Reachability record

Last 100 checks shown · 100.0% across 30 days

2026-09-12T20:44:08.372428Z: passed2026-09-12T21:14:45.970371Z: passed2026-09-12T21:45:27.679527Z: passed2026-09-12T22:16:12.790674Z: passed2026-09-12T22:46:50.575474Z: passed2026-09-12T23:17:48.772063Z: passed2026-09-12T23:50:39.975058Z: passed2026-09-13T00:21:17.476804Z: passed2026-09-13T00:52:02.684492Z: passed2026-09-13T01:22:38.864855Z: passed2026-09-13T01:53:21.218348Z: passed2026-09-13T02:24:03.270680Z: passed2026-09-13T02:54:39.465702Z: passed2026-09-13T03:25:22.370690Z: passed2026-09-13T03:55:59.604650Z: passed2026-09-13T04:26:41.782287Z: passed2026-09-13T04:57:24.971972Z: passed2026-09-13T05:28:01.971690Z: passed2026-09-13T05:58:48.988501Z: passed2026-09-13T06:29:26.083623Z: passed2026-09-13T07:00:03.586784Z: passed2026-09-13T07:30:43.977380Z: passed2026-09-13T08:01:20.490131Z: passed2026-09-13T08:32:00.292420Z: passed2026-09-13T09:02:49.577572Z: passed2026-09-13T09:33:24.771455Z: passed2026-09-13T10:04:03.980053Z: passed2026-09-13T10:35:36.377742Z: passed2026-09-13T11:06:22.776802Z: passed2026-09-13T11:37:06.285615Z: passed2026-09-13T12:07:43.171828Z: passed2026-09-13T12:38:20.388304Z: passed2026-09-13T13:09:00.774752Z: passed2026-09-13T13:39:36.372496Z: passed2026-09-13T14:10:32.376350Z: passed2026-09-13T14:41:09.885943Z: passed2026-09-13T15:11:50.166299Z: passed2026-09-13T15:42:38.972950Z: passed2026-09-13T16:13:24.482910Z: passed2026-09-13T16:44:04.467161Z: passed2026-09-13T17:14:48.779373Z: passed2026-09-13T17:45:28.174881Z: passed2026-09-13T18:16:06.381163Z: passed2026-09-13T18:46:42.178810Z: passed2026-09-13T19:17:33.114038Z: passed2026-09-13T19:48:11.975392Z: passed2026-09-13T20:18:51.178603Z: passed2026-09-13T20:49:32.171298Z: passed2026-09-13T21:20:25.276706Z: passed2026-09-13T21:51:05.379268Z: passed2026-09-13T22:21:52.405525Z: passed2026-09-13T22:52:29.476467Z: passed2026-09-13T23:23:33.076362Z: passed2026-09-13T23:56:27.681020Z: passed2026-09-14T00:27:26.498658Z: passed2026-09-14T00:58:04.888211Z: passed2026-09-14T01:29:00.769525Z: passed2026-09-14T01:59:47.994694Z: passed2026-09-14T02:30:30.677561Z: passed2026-09-14T03:01:08.665512Z: passed2026-09-14T03:32:02.176015Z: passed2026-09-14T04:02:42.985762Z: passed2026-09-14T04:33:25.681187Z: passed2026-09-14T05:04:04.468140Z: passed2026-09-14T05:34:42.375058Z: passed2026-09-14T06:05:24.281365Z: passed2026-09-14T06:36:12.475498Z: passed2026-09-14T07:06:51.588067Z: passed2026-09-14T07:37:31.374064Z: passed2026-09-14T08:08:11.076964Z: passed2026-09-14T08:38:51.375660Z: passed2026-09-14T09:09:30.979541Z: passed2026-09-14T09:40:20.673205Z: passed2026-09-14T10:11:00.275164Z: passed2026-09-14T10:42:38.474276Z: passed2026-09-14T11:13:18.577256Z: passed2026-09-14T11:41:50.774740Z: passed2026-09-14T12:12:38.458895Z: passed2026-09-14T12:38:51.995520Z: passed2026-09-14T13:09:49.280598Z: passed2026-09-14T13:40:38.364648Z: passed2026-09-14T14:11:28.073958Z: passed2026-09-14T14:42:13.183976Z: passed2026-09-14T15:13:13.264552Z: passed2026-09-14T15:43:57.871626Z: passed2026-09-14T16:14:44.875039Z: passed2026-09-14T16:45:47.483923Z: passed2026-09-14T17:16:33.781928Z: passed2026-09-14T17:47:25.264627Z: passed2026-09-14T18:18:12.263735Z: passed2026-09-14T18:49:00.566174Z: passed2026-09-14T19:20:01.494890Z: passed2026-09-14T19:50:51.487617Z: passed2026-09-14T20:21:47.067260Z: passed2026-09-14T20:52:34.282130Z: passed2026-09-14T21:23:29.511008Z: passed2026-09-14T21:54:16.212218Z: passed2026-09-14T22:25:03.663775Z: passed2026-09-14T22:55:47.869974Z: passed2026-09-14T23:26:59.572269Z: passed
PassFailureAverage 2054 ms

Declared skills

Oauth Oidc

oauth-oidc

oauth oidc capability provided by google-auth-oauthlib.

google-auth-oauthlib

Orchestration

orchestration

orchestration capability provided by langchain, langchain-community.

langchain · langchain-community

Agent Protocol

agent-protocol

agent protocol capability provided by mcp.

mcp

Llm Client

llm-client

llm client capability provided by openai.

openai

Self-test (free verification)

selftest

FREE — no payment, no API key, no signup. Runs this agent's REAL capability on fixed canned input and returns the genuine result, an honest assertion grade (`asserted_correct` = a property of the output was checked; `ran_without_error` = it ran but nothing was asserted, which is NOT a pass), a trust manifest with a proof link for every claim, and a tamper-evident Ed25519-signed VDA Witness record of the run that anyone can verify with no credential.

verification · free · trust · attestation · witness

Registry Agent Card snapshot

Normalized fields fetched during the registry sweep. Treat all authored text as third-party content.

Show JSON
{
  "protocolVersion": "0.3.0",
  "name": "Google OAuth LangChain Agent",
  "description": "Google OAuth LangChain Agent: composes google-auth-oauthlib + langchain + langchain-community + mcp + openai — oauth-oidc, orchestration, agent-protocol, llm-client via A2A + MCP.",
  "author": "VDA / GOSCE",
  "wellKnownURI": "https://google-auth-oauthlib-langchain-la-c1a755.getvda.ai/.well-known/agent-card.json",
  "url": "https://google-auth-oauthlib-langchain-la-c1a755.getvda.ai/a2a/",
  "version": "0.1.1",
  "provider": {
    "organization": "VDA / GOSCE",
    "url": "https://getvda.ai/"
  },
  "documentationUrl": "https://google-auth-oauthlib-langchain-la-c1a755.getvda.ai/governance.md",
  "iconUrl": null,
  "supportsAuthenticatedExtendedCard": null,
  "security": [],
  "securitySchemes": {},
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "oauth-oidc",
      "name": "Oauth Oidc",
      "description": "oauth oidc capability provided by google-auth-oauthlib.",
      "tags": [
        "google-auth-oauthlib"
      ],
      "examples": [
        "Use the oauth-oidc capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "orchestration",
      "name": "Orchestration",
      "description": "orchestration capability provided by langchain, langchain-community.",
      "tags": [
        "langchain",
        "langchain-community"
      ],
      "examples": [
        "Use the orchestration capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "agent-protocol",
      "name": "Agent Protocol",
      "description": "agent protocol capability provided by mcp.",
      "tags": [
        "mcp"
      ],
      "examples": [
        "Use the agent-protocol capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "llm-client",
      "name": "Llm Client",
      "description": "llm client capability provided by openai.",
      "tags": [
        "openai"
      ],
      "examples": [
        "Use the llm-client capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "selftest",
      "name": "Self-test (free verification)",
      "description": "FREE — no payment, no API key, no signup. Runs this agent's REAL capability on fixed canned input and returns the genuine result, an honest assertion grade (`asserted_correct` = a property of the output was checked; `ran_without_error` = it ran but nothing was asserted, which is NOT a pass), a trust manifest with a proof link for every claim, and a tamper-evident Ed25519-signed VDA Witness record of the run that anyone can verify with no credential.",
      "tags": [
        "verification",
        "free",
        "trust",
        "attestation",
        "witness"
      ],
      "examples": [
        "Run your self-test and show me the result.",
        "Prove you do what your card claims.",
        "Give me the signed Witness record for your last self-test."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ],
  "conformance": true,
  "conformance_errors": null,
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "557cc65e-ada0-4b88-90c5-1ebc1da9fff0"
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/557cc65e-ada0-4b88-90c5-1ebc1da9fff0

Test message

Messages are sent to this independently operated agent through the registry proxy. Do not include secrets or personal data.

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