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

Task verified

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
0fbfaa4c-7118-4af3-a0aa-7541422e3090
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

2026-09-12T20:44:08.371562Z: passed2026-09-12T21:14:46.178582Z: passed2026-09-12T21:45:29.476455Z: passed2026-09-12T22:16:12.832301Z: passed2026-09-12T22:46:50.673500Z: passed2026-09-12T23:17:48.984471Z: passed2026-09-12T23:50:39.989912Z: passed2026-09-13T00:21:19.410525Z: passed2026-09-13T00:52:02.809383Z: passed2026-09-13T01:22:40.765917Z: passed2026-09-13T01:53:21.267758Z: passed2026-09-13T02:24:03.290677Z: passed2026-09-13T02:54:39.877571Z: passed2026-09-13T03:25:22.366371Z: passed2026-09-13T03:55:59.097187Z: passed2026-09-13T04:26:41.871178Z: passed2026-09-13T04:57:25.007484Z: passed2026-09-13T05:28:01.981596Z: passed2026-09-13T05:58:47.176209Z: passed2026-09-13T06:29:26.087886Z: passed2026-09-13T07:00:03.670476Z: passed2026-09-13T07:30:43.975986Z: passed2026-09-13T08:01:23.914682Z: passed2026-09-13T08:32:00.288210Z: passed2026-09-13T09:02:49.679476Z: passed2026-09-13T09:33:26.214338Z: passed2026-09-13T10:04:04.072886Z: passed2026-09-13T10:35:36.883974Z: passed2026-09-13T11:06:22.783770Z: passed2026-09-13T11:37:06.373035Z: passed2026-09-13T12:07:43.380281Z: passed2026-09-13T12:38:20.384273Z: passed2026-09-13T13:09:00.878030Z: passed2026-09-13T13:39:39.623155Z: passed2026-09-13T14:10:32.384326Z: passed2026-09-13T14:41:09.469263Z: passed2026-09-13T15:11:50.102767Z: passed2026-09-13T15:42:38.902557Z: passed2026-09-13T16:13:24.504806Z: passed2026-09-13T16:44:04.472945Z: passed2026-09-13T17:14:48.866056Z: passed2026-09-13T17:45:28.223203Z: passed2026-09-13T18:16:06.384525Z: passed2026-09-13T18:46:42.189241Z: passed2026-09-13T19:17:33.077816Z: passed2026-09-13T19:48:11.978165Z: passed2026-09-13T20:18:51.210277Z: passed2026-09-13T20:49:31.388375Z: passed2026-09-13T21:20:25.184056Z: passed2026-09-13T21:51:05.386477Z: passed2026-09-13T22:21:51.781531Z: passed2026-09-13T22:52:29.377214Z: passed2026-09-13T23:23:33.278562Z: passed2026-09-13T23:56:27.712642Z: passed2026-09-14T00:27:26.490149Z: passed2026-09-14T00:58:05.373510Z: passed2026-09-14T01:29:00.794887Z: passed2026-09-14T01:59:47.983802Z: passed2026-09-14T02:30:30.768701Z: passed2026-09-14T03:01:09.681924Z: passed2026-09-14T03:32:03.471643Z: passed2026-09-14T04:02:43.088211Z: passed2026-09-14T04:33:25.702021Z: passed2026-09-14T05:04:04.381588Z: passed2026-09-14T05:34:42.190141Z: passed2026-09-14T06:05:24.271804Z: passed2026-09-14T06:36:12.383593Z: passed2026-09-14T07:06:51.595543Z: passed2026-09-14T07:37:31.472870Z: passed2026-09-14T08:08:11.077704Z: passed2026-09-14T08:38:51.397926Z: passed2026-09-14T09:09:30.994548Z: passed2026-09-14T09:40:21.477445Z: passed2026-09-14T10:11:00.268033Z: passed2026-09-14T10:42:38.577321Z: passed2026-09-14T11:13:18.678014Z: passed2026-09-14T11:41:50.759773Z: passed2026-09-14T12:12:38.439594Z: passed2026-09-14T12:38:52.621405Z: passed2026-09-14T13:09:52.786237Z: passed2026-09-14T13:40:38.280913Z: passed2026-09-14T14:11:28.069541Z: passed2026-09-14T14:42:13.267929Z: passed2026-09-14T15:13:13.272179Z: passed2026-09-14T15:43:57.980876Z: passed2026-09-14T16:14:48.377309Z: passed2026-09-14T16:45:45.082720Z: passed2026-09-14T17:16:33.814980Z: passed2026-09-14T17:47:25.480842Z: passed2026-09-14T18:18:12.475971Z: passed2026-09-14T18:49:03.675759Z: passed2026-09-14T19:20:01.468915Z: passed2026-09-14T19:50:55.417892Z: passed2026-09-14T20:21:47.108996Z: passed2026-09-14T20:52:39.197351Z: passed2026-09-14T21:23:29.570682Z: passed2026-09-14T21:54:16.209714Z: passed2026-09-14T22:25:03.568236Z: passed2026-09-14T22:55:47.978066Z: passed2026-09-14T23:26:59.675936Z: passed
PassFailureAverage 2859 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": null
  },
  "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"
}

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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