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 · 93.9% across 30 days

2026-10-15T07:26:03.013854Z: passed2026-10-15T07:57:31.197852Z: passed2026-10-15T08:30:11.998305Z: passed2026-10-15T09:02:44.402676Z: passed2026-10-15T09:34:02.303859Z: passed2026-10-15T10:05:13.594993Z: passed2026-10-15T10:36:20.396258Z: passed2026-10-15T11:07:37.995542Z: passed2026-10-15T11:38:41.096590Z: passed2026-10-15T12:09:42.196211Z: passed2026-10-15T12:40:47.399249Z: passed2026-10-15T13:11:49.190419Z: passed2026-10-15T13:42:57.493543Z: passed2026-10-15T14:13:58.098401Z: passed2026-10-15T14:45:03.292569Z: passed2026-10-15T15:16:21.892852Z: passed2026-10-15T15:47:30.400587Z: passed2026-10-15T16:18:37.298675Z: passed2026-10-15T16:49:42.692875Z: passed2026-10-15T17:20:55.318456Z: passed2026-10-15T17:52:05.619261Z: passed2026-10-15T18:23:58.401626Z: passed2026-10-15T18:55:10.006508Z: passed2026-10-15T19:26:16.802467Z: passed2026-10-15T19:57:48.002605Z: passed2026-10-15T20:28:57.395389Z: passed2026-10-15T21:00:25.098893Z: passed2026-10-15T21:31:42.707614Z: passed2026-10-15T22:02:44.817648Z: passed2026-10-15T22:34:03.309526Z: passed2026-10-15T23:05:14.828471Z: passed2026-10-15T23:36:27.800334Z: passed2026-10-16T00:07:40.899261Z: passed2026-10-16T00:38:53.808843Z: passed2026-10-16T01:10:38.597183Z: passed2026-10-16T01:41:52.100068Z: passed2026-10-16T02:13:09.896272Z: passed2026-10-16T02:44:16.809162Z: passed2026-10-16T03:15:30.706276Z: passed2026-10-16T03:46:46.199959Z: passed2026-10-16T04:17:50.898764Z: passed2026-10-16T04:49:05.505962Z: passed2026-10-16T05:20:20.894954Z: passed2026-10-16T05:51:39.498873Z: passed2026-10-16T06:22:46.694964Z: passed2026-10-16T06:53:57.396919Z: passed2026-10-16T07:25:05.228633Z: passed2026-10-16T07:56:16.689701Z: passed2026-10-16T08:12:45.721650Z: passed2026-10-16T08:45:12.823392Z: passed2026-10-16T09:17:19.929969Z: passed2026-10-16T09:48:27.328365Z: passed2026-10-16T10:19:24.626863Z: passed2026-10-16T10:50:34.427328Z: passed2026-10-16T11:21:32.533879Z: passed2026-10-16T11:52:27.935422Z: passed2026-10-16T12:23:26.529564Z: passed2026-10-16T12:54:27.031078Z: passed2026-10-16T13:25:31.140688Z: passed2026-10-16T13:56:31.729936Z: passed2026-10-16T14:27:32.628423Z: passed2026-10-16T14:58:33.724593Z: passed2026-10-16T15:29:29.425569Z: passed2026-10-16T16:00:38.030499Z: passed2026-10-16T16:31:39.428796Z: passed2026-10-16T17:02:43.535147Z: passed2026-10-16T17:33:47.223445Z: passed2026-10-16T18:04:57.930216Z: passed2026-10-16T18:06:20.044618Z: passed2026-10-16T18:24:15.206998Z: passed2026-10-16T18:33:40.308691Z: passed2026-10-16T19:02:22.181021Z: passed2026-10-16T19:33:35.879578Z: passed2026-10-16T20:04:44.674432Z: passed2026-10-16T20:11:27.381088Z: passed2026-10-16T20:42:35.280591Z: passed2026-10-16T21:13:41.476237Z: passed2026-10-16T21:44:49.781951Z: passed2026-10-16T22:15:58.778170Z: passed2026-10-16T22:47:07.879043Z: passed2026-10-16T23:18:13.079805Z: passed2026-10-16T23:49:27.473252Z: passed2026-10-17T00:20:33.084949Z: passed2026-10-17T00:51:44.172287Z: passed2026-10-17T01:23:27.669712Z: passed2026-10-17T01:54:58.472467Z: passed2026-10-17T02:26:42.478506Z: passed2026-10-17T02:58:03.977648Z: passed2026-10-17T03:29:33.173581Z: passed2026-10-17T04:01:08.279564Z: passed2026-10-17T04:32:20.872647Z: passed2026-10-17T05:03:38.580045Z: passed2026-10-17T05:34:56.684819Z: passed2026-10-17T06:06:19.280183Z: passed2026-10-17T06:37:42.183928Z: passed2026-10-17T07:08:53.980024Z: passed2026-10-17T07:40:11.979744Z: passed2026-10-17T08:11:39.577753Z: passed2026-10-17T08:43:12.977029Z: passed2026-10-17T09:15:58.082891Z: passed
PassFailureAverage 1042 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": null
  },
  "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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