A2A REGISTRY·AGENT RECORD·3e58e9b3-f53d-4636-88ab-df10c1e28620

Provider

VDA / GOSCE

LLM Orchestration Agent (Langchain)

LLM Orchestration Agent (Langchain): composes langchain + langchain-openai + langgraph + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.

Observed evidence

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
3e58e9b3-f53d-4636-88ab-df10c1e28620
Category
Agent orchestration · Trust & safety
Canonical card
https://llm-orchestration-agent-langchain.getvda.ai/.well-known/agent-card.json
Endpoint
https://llm-orchestration-agent-langchain.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 · 99.9% across 30 days

2026-11-04T00:39:54.028179Z: passed2026-11-04T01:11:08.633442Z: passed2026-11-04T01:42:32.232606Z: passed2026-11-04T02:13:58.632750Z: passed2026-11-04T02:45:30.525501Z: passed2026-11-04T03:16:52.331553Z: passed2026-11-04T03:48:24.730803Z: passed2026-11-04T04:19:41.831001Z: passed2026-11-04T04:51:02.128449Z: passed2026-11-04T05:22:16.927442Z: passed2026-11-04T05:53:26.028130Z: passed2026-11-04T06:24:57.433943Z: passed2026-11-04T06:43:57.889323Z: passed2026-11-04T07:15:16.781828Z: passed2026-11-04T07:46:34.790969Z: passed2026-11-04T08:17:39.583239Z: passed2026-11-04T08:48:50.182621Z: passed2026-11-04T09:19:58.783600Z: passed2026-11-04T09:51:21.488983Z: passed2026-11-04T10:22:46.689147Z: passed2026-11-04T10:54:02.788596Z: passed2026-11-04T11:25:25.490677Z: passed2026-11-04T11:56:30.683252Z: passed2026-11-04T12:27:55.286352Z: passed2026-11-04T12:59:42.783578Z: passed2026-11-04T13:31:24.490286Z: passed2026-11-04T14:03:08.586775Z: passed2026-11-04T14:35:23.787439Z: passed2026-11-04T15:07:33.886641Z: passed2026-11-04T15:39:07.590160Z: passed2026-11-04T16:10:39.992035Z: passed2026-11-04T16:42:07.888299Z: passed2026-11-04T17:13:35.393990Z: passed2026-11-04T17:45:03.583372Z: passed2026-11-04T18:16:34.385734Z: passed2026-11-04T18:48:09.789684Z: passed2026-11-04T19:19:40.781446Z: passed2026-11-04T19:51:07.494265Z: passed2026-11-04T20:22:29.283160Z: passed2026-11-04T20:53:50.383193Z: passed2026-11-04T21:25:12.682304Z: passed2026-11-04T21:56:25.884844Z: passed2026-11-04T22:27:50.484945Z: passed2026-11-04T22:59:28.990650Z: passed2026-11-04T23:31:18.085154Z: passed2026-11-05T00:02:54.690918Z: passed2026-11-05T00:34:17.688230Z: passed2026-11-05T01:05:33.790805Z: passed2026-11-05T01:07:04.809206Z: passed2026-11-05T01:38:13.314407Z: passed2026-11-05T02:09:28.115425Z: passed2026-11-05T02:40:59.510358Z: passed2026-11-05T03:12:33.416515Z: passed2026-11-05T03:43:52.811946Z: passed2026-11-05T04:15:12.914664Z: passed2026-11-05T04:46:27.813323Z: passed2026-11-05T05:17:38.811716Z: passed2026-11-05T05:18:53.150131Z: passed2026-11-05T05:50:03.249781Z: passed2026-11-05T06:21:20.947145Z: passed2026-11-05T06:52:48.047765Z: passed2026-11-05T07:24:07.952427Z: passed2026-11-05T07:55:34.652174Z: passed2026-11-05T08:26:45.548548Z: passed2026-11-05T08:57:54.643657Z: passed2026-11-05T09:29:01.355841Z: passed2026-11-05T10:00:10.049763Z: passed2026-11-05T10:31:10.745013Z: passed2026-11-05T11:02:09.557089Z: passed2026-11-05T11:33:25.447169Z: passed2026-11-05T12:04:32.138844Z: passed2026-11-05T12:35:45.449161Z: passed2026-11-05T13:07:07.251084Z: passed2026-11-05T13:38:33.044173Z: passed2026-11-05T14:10:11.745055Z: passed2026-11-05T14:41:52.854073Z: passed2026-11-05T14:43:20.343883Z: passed2026-11-05T15:14:57.247171Z: passed2026-11-05T15:46:11.844887Z: passed2026-11-05T16:17:32.955893Z: passed2026-11-05T16:48:40.844194Z: passed2026-11-05T17:20:11.744342Z: passed2026-11-05T17:51:24.448414Z: passed2026-11-05T18:22:40.654245Z: passed2026-11-05T18:53:52.846788Z: passed2026-11-05T19:25:09.644575Z: passed2026-11-05T19:56:22.744231Z: passed2026-11-05T20:27:33.547228Z: passed2026-11-05T20:58:47.542451Z: passed2026-11-05T21:30:04.745450Z: passed2026-11-05T22:01:32.849694Z: passed2026-11-05T22:33:10.245049Z: passed2026-11-05T23:04:49.842991Z: passed2026-11-05T23:36:34.848525Z: passed2026-11-06T00:08:07.049029Z: passed2026-11-06T00:39:21.944602Z: passed2026-11-06T01:10:31.340573Z: passed2026-11-06T01:41:44.748730Z: passed2026-11-06T01:43:02.006185Z: passed2026-11-06T02:14:20.103813Z: passed
PassFailureAverage 846 ms

Declared skills

Orchestration

orchestration

orchestration capability provided by langchain, langchain-openai, langgraph.

langchain · langchain-openai · langgraph

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": "LLM Orchestration Agent (Langchain)",
  "description": "LLM Orchestration Agent (Langchain): composes langchain + langchain-openai + langgraph + mcp + openai — orchestration, agent-protocol, llm-client via A2A + MCP.",
  "author": "VDA / GOSCE",
  "wellKnownURI": "https://llm-orchestration-agent-langchain.getvda.ai/.well-known/agent-card.json",
  "url": "https://llm-orchestration-agent-langchain.getvda.ai/a2a/",
  "version": "0.1.1",
  "provider": {
    "organization": "VDA / GOSCE",
    "url": "https://getvda.ai/"
  },
  "documentationUrl": "https://llm-orchestration-agent-langchain.getvda.ai/governance.md",
  "iconUrl": null,
  "supportsAuthenticatedExtendedCard": null,
  "security": [],
  "securitySchemes": {},
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://rssa.getvda.ai/ext/v0.1",
        "params": {
          "groups": [
            "https://hub.rssa.getvda.ai/network"
          ]
        },
        "required": false,
        "description": "RSSA: this agent's feed and modules"
      }
    ]
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "orchestration",
      "name": "Orchestration",
      "description": "orchestration capability provided by langchain, langchain-openai, langgraph.",
      "tags": [
        "langchain",
        "langchain-openai",
        "langgraph"
      ],
      "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": "3e58e9b3-f53d-4636-88ab-df10c1e28620",
  "category": "agent-orchestration",
  "category_secondary": "trust-safety"
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/3e58e9b3-f53d-4636-88ab-df10c1e28620

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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