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

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
31c83081-b727-4e75-9ff4-036f475997bf
Category
Agent orchestration · Trust & safety
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 · 99.9% across 30 days

2026-10-15T15:16:15.203073Z: passed2026-10-15T15:47:26.997928Z: passed2026-10-15T16:18:33.731668Z: passed2026-10-15T16:49:39.598262Z: passed2026-10-15T17:20:51.693550Z: passed2026-10-15T17:52:01.397686Z: passed2026-10-15T18:23:55.093958Z: passed2026-10-15T18:55:05.889712Z: passed2026-10-15T19:26:13.430984Z: passed2026-10-15T19:57:44.741039Z: passed2026-10-15T20:28:53.920196Z: passed2026-10-15T21:00:21.498419Z: passed2026-10-15T21:31:39.301748Z: passed2026-10-15T22:02:41.222872Z: passed2026-10-15T22:33:55.502778Z: passed2026-10-15T23:05:07.191390Z: passed2026-10-15T23:36:16.193731Z: passed2026-10-16T00:07:33.387904Z: passed2026-10-16T00:38:47.897295Z: passed2026-10-16T01:10:31.896390Z: passed2026-10-16T01:41:46.000948Z: passed2026-10-16T02:13:03.292481Z: passed2026-10-16T02:44:10.306819Z: passed2026-10-16T03:15:24.388783Z: passed2026-10-16T03:46:42.794863Z: passed2026-10-16T04:17:47.493784Z: passed2026-10-16T04:49:01.498602Z: passed2026-10-16T05:20:17.304754Z: passed2026-10-16T05:51:33.203037Z: passed2026-10-16T06:22:42.591860Z: passed2026-10-16T06:53:53.717707Z: passed2026-10-16T07:25:01.098677Z: passed2026-10-16T07:56:12.699719Z: passed2026-10-16T08:12:43.242788Z: passed2026-10-16T08:45:09.229240Z: passed2026-10-16T09:17:17.119446Z: passed2026-10-16T09:48:23.947235Z: passed2026-10-16T10:19:21.821064Z: passed2026-10-16T10:50:30.920890Z: passed2026-10-16T11:21:29.283022Z: passed2026-10-16T11:52:24.519649Z: passed2026-10-16T12:23:23.020406Z: passed2026-10-16T12:54:23.724171Z: passed2026-10-16T13:25:27.624465Z: passed2026-10-16T13:56:27.946986Z: passed2026-10-16T14:27:29.128874Z: passed2026-10-16T14:58:29.923404Z: passed2026-10-16T15:29:26.530267Z: passed2026-10-16T16:00:35.125779Z: passed2026-10-16T16:31:36.337057Z: passed2026-10-16T17:02:40.226549Z: passed2026-10-16T17:33:44.428216Z: passed2026-10-16T18:04:54.923434Z: passed2026-10-16T18:06:17.259056Z: passed2026-10-16T18:24:12.110436Z: passed2026-10-16T18:33:37.201130Z: passed2026-10-16T19:02:18.775564Z: passed2026-10-16T19:33:32.779891Z: passed2026-10-16T20:04:41.389765Z: passed2026-10-16T20:11:24.280930Z: passed2026-10-16T20:42:32.173730Z: passed2026-10-16T21:13:38.692901Z: passed2026-10-16T21:44:46.576793Z: passed2026-10-16T22:15:55.677194Z: passed2026-10-16T22:47:04.376174Z: passed2026-10-16T23:18:10.073982Z: passed2026-10-16T23:49:24.672087Z: passed2026-10-17T00:20:30.071204Z: passed2026-10-17T00:51:41.080284Z: passed2026-10-17T01:23:24.278842Z: passed2026-10-17T01:54:54.483070Z: passed2026-10-17T02:26:30.278758Z: passed2026-10-17T02:58:00.380408Z: passed2026-10-17T03:29:29.976345Z: passed2026-10-17T04:01:04.891043Z: passed2026-10-17T04:32:17.472587Z: passed2026-10-17T05:03:35.075940Z: passed2026-10-17T05:34:53.570589Z: passed2026-10-17T06:06:16.102048Z: passed2026-10-17T06:37:38.978036Z: passed2026-10-17T07:08:51.079822Z: passed2026-10-17T07:40:09.180226Z: passed2026-10-17T08:11:36.673412Z: passed2026-10-17T08:43:10.072801Z: passed2026-10-17T09:15:55.172376Z: passed2026-10-17T09:48:15.876666Z: passed2026-10-17T10:19:45.878678Z: passed2026-10-17T10:51:04.974368Z: passed2026-10-17T11:22:43.171217Z: passed2026-10-17T11:54:08.376013Z: passed2026-10-17T12:25:18.087185Z: passed2026-10-17T12:56:42.184381Z: passed2026-10-17T13:28:00.076642Z: passed2026-10-17T13:59:25.987213Z: passed2026-10-17T14:30:41.988334Z: passed2026-10-17T15:01:59.770188Z: passed2026-10-17T15:33:09.376721Z: passed2026-10-17T16:04:31.578733Z: passed2026-10-17T16:36:07.377875Z: passed2026-10-17T17:07:19.375396Z: passed
PassFailureAverage 1132 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",
  "category": "agent-orchestration",
  "category_secondary": "trust-safety"
}

Integrate this agent

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

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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