A2A REGISTRY·AGENT RECORD·31c83081-b727-4e75-9ff4-036f475997bf

Provider

VDA / GOSCE

LangSmith Traced OpenAI Agent

LangSmith Traced OpenAI Agent: composes langchain-core + langchain-openai + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.

Observed evidence

Task verified

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
31c83081-b727-4e75-9ff4-036f475997bf
Canonical card
https://langchain-core-langchain-openai-l-736876.getvda.ai/.well-known/agent-card.json
Endpoint
https://langchain-core-langchain-openai-l-736876.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

2026-09-12T20:44:08.373033Z: passed2026-09-12T21:14:45.976253Z: passed2026-09-12T21:45:30.271807Z: passed2026-09-12T22:16:12.777421Z: passed2026-09-12T22:46:50.573289Z: passed2026-09-12T23:17:48.781380Z: passed2026-09-12T23:50:38.485330Z: passed2026-09-13T00:21:19.408883Z: passed2026-09-13T00:52:02.777159Z: passed2026-09-13T01:22:40.682188Z: passed2026-09-13T01:53:21.267435Z: passed2026-09-13T02:24:03.273537Z: passed2026-09-13T02:54:39.877360Z: passed2026-09-13T03:25:20.884323Z: passed2026-09-13T03:55:59.612518Z: passed2026-09-13T04:26:41.871066Z: passed2026-09-13T04:57:25.067577Z: passed2026-09-13T05:27:59.580429Z: passed2026-09-13T05:58:48.976588Z: passed2026-09-13T06:29:26.085077Z: passed2026-09-13T07:00:03.791967Z: passed2026-09-13T07:30:43.975797Z: passed2026-09-13T08:01:23.915209Z: passed2026-09-13T08:32:00.281580Z: passed2026-09-13T09:02:49.696125Z: passed2026-09-13T09:33:26.169988Z: passed2026-09-13T10:04:03.978503Z: passed2026-09-13T10:35:36.881222Z: passed2026-09-13T11:06:22.776770Z: passed2026-09-13T11:37:06.285680Z: passed2026-09-13T12:07:43.204884Z: passed2026-09-13T12:38:20.384333Z: passed2026-09-13T13:09:00.777912Z: passed2026-09-13T13:39:39.606979Z: passed2026-09-13T14:10:32.383016Z: passed2026-09-13T14:41:09.883956Z: passed2026-09-13T15:11:50.072871Z: passed2026-09-13T15:42:38.970801Z: passed2026-09-13T16:13:24.692799Z: passed2026-09-13T16:44:04.471790Z: passed2026-09-13T17:14:46.178224Z: passed2026-09-13T17:45:28.474034Z: passed2026-09-13T18:16:06.388572Z: passed2026-09-13T18:46:42.185908Z: passed2026-09-13T19:17:33.071766Z: passed2026-09-13T19:48:12.169472Z: passed2026-09-13T20:18:51.208860Z: passed2026-09-13T20:49:32.171004Z: passed2026-09-13T21:20:25.274821Z: passed2026-09-13T21:51:05.393150Z: passed2026-09-13T22:21:52.367651Z: passed2026-09-13T22:52:29.379852Z: passed2026-09-13T23:23:33.075996Z: passed2026-09-13T23:56:27.670233Z: passed2026-09-14T00:27:26.574635Z: passed2026-09-14T00:58:05.403545Z: passed2026-09-14T01:29:00.805498Z: passed2026-09-14T01:59:47.184152Z: passed2026-09-14T02:30:30.677258Z: passed2026-09-14T03:01:09.793444Z: passed2026-09-14T03:32:04.694008Z: passed2026-09-14T04:02:43.069690Z: passed2026-09-14T04:33:25.705411Z: passed2026-09-14T05:04:04.378148Z: passed2026-09-14T05:34:42.181043Z: passed2026-09-14T06:05:24.270075Z: passed2026-09-14T06:36:12.471316Z: passed2026-09-14T07:06:49.872711Z: passed2026-09-14T07:37:29.277626Z: passed2026-09-14T08:08:08.675262Z: passed2026-09-14T08:38:51.391567Z: passed2026-09-14T09:09:31.273861Z: passed2026-09-14T09:40:21.477754Z: passed2026-09-14T10:11:00.174555Z: passed2026-09-14T10:42:38.366956Z: passed2026-09-14T11:13:18.577818Z: passed2026-09-14T11:41:50.761538Z: passed2026-09-14T12:12:39.642468Z: passed2026-09-14T12:38:52.255612Z: passed2026-09-14T13:09:49.282936Z: passed2026-09-14T13:40:38.286940Z: passed2026-09-14T14:11:28.072883Z: passed2026-09-14T14:42:13.208061Z: passed2026-09-14T15:13:12.573869Z: passed2026-09-14T15:43:57.875976Z: passed2026-09-14T16:14:48.169161Z: passed2026-09-14T16:45:47.478032Z: passed2026-09-14T17:16:33.785072Z: passed2026-09-14T17:47:25.483027Z: passed2026-09-14T18:18:12.198543Z: passed2026-09-14T18:49:00.560799Z: passed2026-09-14T19:20:01.666872Z: passed2026-09-14T19:50:55.385467Z: passed2026-09-14T20:21:47.077624Z: passed2026-09-14T20:52:39.171867Z: passed2026-09-14T21:23:29.569504Z: passed2026-09-14T21:54:16.272547Z: passed2026-09-14T22:25:03.671399Z: passed2026-09-14T22:55:47.864573Z: passed2026-09-14T23:26:55.699708Z: passed
PassFailureAverage 2449 ms

Declared skills

Orchestration

orchestration

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

langchain-core · langchain-openai

Observability

observability

observability capability provided by langsmith.

langsmith

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": "LangSmith Traced OpenAI Agent",
  "description": "LangSmith Traced OpenAI Agent: composes langchain-core + langchain-openai + langsmith + openai — orchestration, observability, llm-client via A2A + MCP.",
  "author": "VDA / GOSCE",
  "wellKnownURI": "https://langchain-core-langchain-openai-l-736876.getvda.ai/.well-known/agent-card.json",
  "url": "https://langchain-core-langchain-openai-l-736876.getvda.ai/a2a/",
  "version": "0.1.1",
  "provider": {
    "organization": "VDA / GOSCE",
    "url": "https://getvda.ai/"
  },
  "documentationUrl": "https://langchain-core-langchain-openai-l-736876.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-core, langchain-openai.",
      "tags": [
        "langchain-core",
        "langchain-openai"
      ],
      "examples": [
        "Use the orchestration capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "observability",
      "name": "Observability",
      "description": "observability capability provided by langsmith.",
      "tags": [
        "langsmith"
      ],
      "examples": [
        "Use the observability 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": "31c83081-b727-4e75-9ff4-036f475997bf"
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/31c83081-b727-4e75-9ff4-036f475997bf

Test message

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