A2A REGISTRY·AGENT RECORD·0fbfaa4c-7118-4af3-a0aa-7541422e3090

Provider

VDA / GOSCE

Traced OpenAI LangChain Agent

Traced OpenAI LangChain Agent: composes bcrypt + langchain-core + mcp + openai + opentelemetry-api — crypto, orchestration, agent-protocol, llm-client, observability via A2A + MCP.

Observed evidence

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
0fbfaa4c-7118-4af3-a0aa-7541422e3090
Category
Trust & safety · Agent orchestration
Canonical card
https://authenticated-mcp-agent-opentelemetry-api.getvda.ai/.well-known/agent-card.json
Endpoint
https://authenticated-mcp-agent-opentelemetry-api.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

2026-11-04T00:39:51.122952Z: passed2026-11-04T01:11:05.729588Z: passed2026-11-04T01:42:29.152752Z: passed2026-11-04T02:13:56.031374Z: passed2026-11-04T02:45:27.823825Z: passed2026-11-04T03:16:49.524491Z: passed2026-11-04T03:48:21.925828Z: passed2026-11-04T04:19:38.327267Z: passed2026-11-04T04:50:59.424496Z: passed2026-11-04T05:22:14.128073Z: passed2026-11-04T05:53:23.326312Z: passed2026-11-04T06:24:54.325811Z: passed2026-11-04T06:43:54.591302Z: passed2026-11-04T07:15:14.084251Z: passed2026-11-04T07:46:32.086261Z: passed2026-11-04T08:17:36.784938Z: passed2026-11-04T08:48:47.484893Z: passed2026-11-04T09:19:56.288722Z: passed2026-11-04T09:51:18.584005Z: passed2026-11-04T10:22:43.882390Z: passed2026-11-04T10:53:59.782434Z: passed2026-11-04T11:25:22.680512Z: passed2026-11-04T11:56:27.797646Z: passed2026-11-04T12:27:51.980273Z: passed2026-11-04T12:59:39.980779Z: passed2026-11-04T13:31:21.985986Z: passed2026-11-04T14:03:05.683249Z: passed2026-11-04T14:35:21.582752Z: passed2026-11-04T15:07:31.085767Z: passed2026-11-04T15:39:04.886470Z: passed2026-11-04T16:10:37.287234Z: passed2026-11-04T16:42:05.282957Z: passed2026-11-04T17:13:32.087055Z: passed2026-11-04T17:45:00.381445Z: passed2026-11-04T18:16:31.485143Z: passed2026-11-04T18:48:07.081963Z: passed2026-11-04T19:19:37.780075Z: passed2026-11-04T19:51:04.191370Z: passed2026-11-04T20:22:26.486007Z: passed2026-11-04T20:53:47.810721Z: passed2026-11-04T21:25:09.984187Z: passed2026-11-04T21:56:22.984663Z: passed2026-11-04T22:27:47.986389Z: passed2026-11-04T22:59:26.179782Z: passed2026-11-04T23:31:15.284148Z: passed2026-11-05T00:02:51.988166Z: passed2026-11-05T00:34:14.586069Z: passed2026-11-05T01:05:30.679296Z: passed2026-11-05T01:07:02.010604Z: passed2026-11-05T01:38:10.605765Z: passed2026-11-05T02:09:25.111306Z: passed2026-11-05T02:40:56.811652Z: passed2026-11-05T03:12:30.608840Z: passed2026-11-05T03:43:50.107826Z: passed2026-11-05T04:15:10.314748Z: passed2026-11-05T04:46:25.008304Z: passed2026-11-05T05:17:35.324330Z: passed2026-11-05T05:18:50.846309Z: passed2026-11-05T05:50:00.740798Z: passed2026-11-05T06:21:18.545292Z: passed2026-11-05T06:52:45.248142Z: passed2026-11-05T07:24:05.145659Z: passed2026-11-05T07:55:32.048271Z: passed2026-11-05T08:26:42.644821Z: passed2026-11-05T08:57:51.540950Z: passed2026-11-05T09:28:58.443910Z: passed2026-11-05T10:00:07.344703Z: passed2026-11-05T10:31:07.269951Z: passed2026-11-05T11:02:06.643325Z: passed2026-11-05T11:33:22.739724Z: passed2026-11-05T12:04:29.348805Z: passed2026-11-05T12:35:42.640472Z: passed2026-11-05T13:07:04.264003Z: passed2026-11-05T13:38:29.845517Z: passed2026-11-05T14:10:08.640391Z: passed2026-11-05T14:41:49.942592Z: passed2026-11-05T14:43:17.543080Z: passed2026-11-05T15:14:54.437484Z: passed2026-11-05T15:46:08.545527Z: passed2026-11-05T16:17:29.058796Z: passed2026-11-05T16:48:38.046436Z: passed2026-11-05T17:20:08.944171Z: passed2026-11-05T17:51:21.443853Z: passed2026-11-05T18:22:37.542830Z: passed2026-11-05T18:53:49.844688Z: passed2026-11-05T19:25:00.744303Z: passed2026-11-05T19:56:19.650704Z: passed2026-11-05T20:27:29.845858Z: passed2026-11-05T20:58:44.541599Z: passed2026-11-05T21:30:01.738317Z: passed2026-11-05T22:01:30.044344Z: passed2026-11-05T22:33:06.949193Z: passed2026-11-05T23:04:46.750890Z: passed2026-11-05T23:36:32.145803Z: passed2026-11-06T00:08:03.551634Z: passed2026-11-06T00:39:18.541154Z: passed2026-11-06T01:10:28.040628Z: passed2026-11-06T01:41:41.847773Z: passed2026-11-06T01:42:59.205223Z: passed2026-11-06T02:14:17.503089Z: passed
PassFailureAverage 881 ms

Declared skills

Crypto

crypto

crypto capability provided by bcrypt.

bcrypt

Orchestration

orchestration

orchestration capability provided by langchain-core.

langchain-core

Agent Protocol

agent-protocol

agent protocol capability provided by mcp.

mcp

Llm Client

llm-client

llm client capability provided by openai.

openai

Observability

observability

observability capability provided by opentelemetry-api.

opentelemetry-api

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": "Traced OpenAI LangChain Agent",
  "description": "Traced OpenAI LangChain Agent: composes bcrypt + langchain-core + mcp + openai + opentelemetry-api — crypto, orchestration, agent-protocol, llm-client, observability via A2A + MCP.",
  "author": "VDA / GOSCE",
  "wellKnownURI": "https://authenticated-mcp-agent-opentelemetry-api.getvda.ai/.well-known/agent-card.json",
  "url": "https://authenticated-mcp-agent-opentelemetry-api.getvda.ai/a2a/",
  "version": "0.1.1",
  "provider": {
    "organization": "VDA / GOSCE",
    "url": "https://getvda.ai/"
  },
  "documentationUrl": "https://authenticated-mcp-agent-opentelemetry-api.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": "crypto",
      "name": "Crypto",
      "description": "crypto capability provided by bcrypt.",
      "tags": [
        "bcrypt"
      ],
      "examples": [
        "Use the crypto capability of this agent."
      ],
      "inputModes": [
        "text/plain",
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "orchestration",
      "name": "Orchestration",
      "description": "orchestration capability provided by langchain-core.",
      "tags": [
        "langchain-core"
      ],
      "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": "observability",
      "name": "Observability",
      "description": "observability capability provided by opentelemetry-api.",
      "tags": [
        "opentelemetry-api"
      ],
      "examples": [
        "Use the observability 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": "0fbfaa4c-7118-4af3-a0aa-7541422e3090",
  "category": "trust-safety",
  "category_secondary": "agent-orchestration"
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/0fbfaa4c-7118-4af3-a0aa-7541422e3090

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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