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

2026-10-15T07:25:59.894516Z: passed2026-10-15T07:57:28.194972Z: passed2026-10-15T08:30:08.792457Z: passed2026-10-15T09:02:41.202534Z: passed2026-10-15T09:33:59.299340Z: passed2026-10-15T10:05:10.491182Z: passed2026-10-15T10:36:17.433351Z: passed2026-10-15T11:07:35.001971Z: passed2026-10-15T11:38:38.499948Z: passed2026-10-15T12:09:39.391064Z: passed2026-10-15T12:40:44.391008Z: passed2026-10-15T13:11:46.116629Z: passed2026-10-15T13:42:54.896352Z: passed2026-10-15T14:13:55.196333Z: passed2026-10-15T14:45:00.197978Z: passed2026-10-15T15:16:18.789603Z: passed2026-10-15T15:47:26.930623Z: passed2026-10-15T16:18:33.895327Z: passed2026-10-15T16:49:39.689367Z: passed2026-10-15T17:20:51.798739Z: passed2026-10-15T17:52:01.499355Z: passed2026-10-15T18:23:55.091770Z: passed2026-10-15T18:55:06.098334Z: passed2026-10-15T19:26:13.401172Z: passed2026-10-15T19:57:44.812457Z: passed2026-10-15T20:28:54.100716Z: passed2026-10-15T21:00:21.394422Z: passed2026-10-15T21:31:38.888469Z: passed2026-10-15T22:02:41.402540Z: passed2026-10-15T22:33:59.698222Z: passed2026-10-15T23:05:11.098506Z: passed2026-10-15T23:36:24.419822Z: passed2026-10-16T00:07:37.605881Z: passed2026-10-16T00:38:50.457134Z: passed2026-10-16T01:10:35.348926Z: passed2026-10-16T01:41:48.996956Z: passed2026-10-16T02:13:06.604345Z: passed2026-10-16T02:44:13.602405Z: passed2026-10-16T03:15:27.495131Z: passed2026-10-16T03:46:42.692564Z: passed2026-10-16T04:17:47.044189Z: passed2026-10-16T04:49:01.603485Z: passed2026-10-16T05:20:17.402949Z: passed2026-10-16T05:51:36.105583Z: passed2026-10-16T06:22:42.424679Z: passed2026-10-16T06:53:53.723740Z: passed2026-10-16T07:25:01.096791Z: passed2026-10-16T07:56:12.799348Z: passed2026-10-16T08:12:43.240640Z: passed2026-10-16T08:45:09.041650Z: passed2026-10-16T09:17:17.223335Z: passed2026-10-16T09:48:24.021688Z: passed2026-10-16T10:19:21.820407Z: passed2026-10-16T10:50:31.020911Z: passed2026-10-16T11:21:29.282602Z: passed2026-10-16T11:52:24.519837Z: passed2026-10-16T12:23:23.021889Z: passed2026-10-16T12:54:23.723500Z: passed2026-10-16T13:25:27.519706Z: passed2026-10-16T13:56:28.129669Z: passed2026-10-16T14:27:29.025995Z: passed2026-10-16T14:58:29.923940Z: passed2026-10-16T15:29:26.627193Z: passed2026-10-16T16:00:35.329005Z: passed2026-10-16T16:31:36.630290Z: passed2026-10-16T17:02:40.227121Z: passed2026-10-16T17:33:44.936461Z: passed2026-10-16T18:04:55.027647Z: passed2026-10-16T18:06:17.350419Z: passed2026-10-16T18:24:12.303248Z: passed2026-10-16T18:33:37.413596Z: passed2026-10-16T19:02:18.981067Z: passed2026-10-16T19:33:32.892669Z: passed2026-10-16T20:04:41.673870Z: passed2026-10-16T20:11:24.179975Z: passed2026-10-16T20:42:32.273289Z: passed2026-10-16T21:13:38.693501Z: passed2026-10-16T21:44:46.577171Z: passed2026-10-16T22:15:55.977978Z: passed2026-10-16T22:47:04.376421Z: passed2026-10-16T23:18:10.075051Z: passed2026-10-16T23:49:24.586578Z: passed2026-10-17T00:20:30.378501Z: passed2026-10-17T00:51:41.188604Z: passed2026-10-17T01:23:24.480327Z: passed2026-10-17T01:54:54.481550Z: passed2026-10-17T02:26:30.379185Z: passed2026-10-17T02:58:00.485130Z: passed2026-10-17T03:29:30.371452Z: passed2026-10-17T04:01:04.983426Z: passed2026-10-17T04:32:17.586509Z: passed2026-10-17T05:03:35.285765Z: passed2026-10-17T05:34:53.884444Z: passed2026-10-17T06:06:16.364956Z: passed2026-10-17T06:37:39.179011Z: passed2026-10-17T07:08:51.079522Z: passed2026-10-17T07:40:09.275460Z: passed2026-10-17T08:11:36.774194Z: passed2026-10-17T08:43:10.276245Z: passed2026-10-17T09:15:55.284874Z: passed
PassFailureAverage 1095 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",
  "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.

Message exchangeConnecting
>