A2A REGISTRY·AGENT RECORD·65d26f09-3036-4650-9227-077f12bb6566

Provider

VDA / GOSCE

Encrypted LangChain Token Agent

Encrypted LangChain Token Agent: composes cryptography + langchain-core + mcp + opentelemetry-api + python-jose — crypto, orchestration, agent-protocol, observability, jwt via A2A + MCP.

Observed evidence

Reachable

Last sweep

Launch endpoint ↗

Agent datasheet

Agent ID
65d26f09-3036-4650-9227-077f12bb6566
Category
Trust & safety
Canonical card
https://cryptography-langchain-core-mcp-07d652.getvda.ai/.well-known/agent-card.json
Endpoint
https://cryptography-langchain-core-mcp-07d652.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

2026-11-04T00:39:51.124055Z: passed2026-11-04T01:11:05.474880Z: passed2026-11-04T01:42:29.226345Z: passed2026-11-04T02:13:55.928479Z: passed2026-11-04T02:45:27.727323Z: passed2026-11-04T03:16:49.523410Z: passed2026-11-04T03:48:22.227028Z: passed2026-11-04T04:19:38.321609Z: passed2026-11-04T04:50:59.423940Z: passed2026-11-04T05:22:13.936773Z: passed2026-11-04T05:53:23.233711Z: passed2026-11-04T06:24:54.526382Z: passed2026-11-04T06:43:54.587767Z: passed2026-11-04T07:15:14.085139Z: passed2026-11-04T07:46:32.087570Z: passed2026-11-04T08:17:36.784972Z: passed2026-11-04T08:48:47.588648Z: passed2026-11-04T09:19:55.980199Z: passed2026-11-04T09:51:18.496393Z: passed2026-11-04T10:22:44.192410Z: passed2026-11-04T10:53:59.888150Z: passed2026-11-04T11:25:22.680251Z: passed2026-11-04T11:56:27.880379Z: passed2026-11-04T12:27:51.879249Z: passed2026-11-04T12:59:39.993003Z: passed2026-11-04T13:31:21.606936Z: passed2026-11-04T14:03:05.682698Z: passed2026-11-04T14:35:20.982666Z: passed2026-11-04T15:07:30.881404Z: passed2026-11-04T15:39:04.785523Z: passed2026-11-04T16:10:36.907622Z: passed2026-11-04T16:42:05.283049Z: passed2026-11-04T17:13:32.180811Z: passed2026-11-04T17:45:00.183664Z: passed2026-11-04T18:16:27.995965Z: passed2026-11-04T18:48:03.582507Z: passed2026-11-04T19:19:33.983973Z: passed2026-11-04T19:51:00.096744Z: passed2026-11-04T20:22:23.092170Z: passed2026-11-04T20:53:44.581910Z: passed2026-11-04T21:25:06.297041Z: passed2026-11-04T21:56:19.585184Z: passed2026-11-04T22:27:43.997718Z: passed2026-11-04T22:59:21.980771Z: passed2026-11-04T23:31:10.880403Z: passed2026-11-05T00:02:51.797737Z: passed2026-11-05T00:34:14.685266Z: passed2026-11-05T01:05:30.884705Z: passed2026-11-05T01:06:58.921904Z: passed2026-11-05T01:38:10.506184Z: passed2026-11-05T02:09:25.109562Z: passed2026-11-05T02:40:52.922957Z: passed2026-11-05T03:12:27.115628Z: passed2026-11-05T03:43:46.407140Z: passed2026-11-05T04:15:10.105350Z: passed2026-11-05T04:46:25.110352Z: passed2026-11-05T05:17:35.614326Z: passed2026-11-05T05:18:47.155098Z: passed2026-11-05T05:50:00.346196Z: passed2026-11-05T06:21:18.344512Z: passed2026-11-05T06:52:45.243100Z: passed2026-11-05T07:24:04.843054Z: passed2026-11-05T07:55:32.149877Z: passed2026-11-05T08:26:42.645193Z: passed2026-11-05T08:57:51.442573Z: passed2026-11-05T09:28:58.443987Z: passed2026-11-05T10:00:07.139762Z: passed2026-11-05T10:31:07.344146Z: passed2026-11-05T11:02:06.460403Z: passed2026-11-05T11:33:22.740305Z: passed2026-11-05T12:04:29.348476Z: passed2026-11-05T12:35:42.640931Z: passed2026-11-05T13:07:04.341012Z: passed2026-11-05T13:38:29.864943Z: passed2026-11-05T14:10:05.047315Z: passed2026-11-05T14:41:47.057811Z: passed2026-11-05T14:43:13.640665Z: passed2026-11-05T15:14:50.647924Z: passed2026-11-05T15:46:08.546629Z: passed2026-11-05T16:17:29.143172Z: passed2026-11-05T16:48:37.843720Z: passed2026-11-05T17:20:08.943748Z: passed2026-11-05T17:51:21.442322Z: passed2026-11-05T18:22:37.643179Z: passed2026-11-05T18:53:49.748459Z: passed2026-11-05T19:24:55.842725Z: passed2026-11-05T19:56:16.142214Z: passed2026-11-05T20:27:26.552515Z: passed2026-11-05T20:58:40.645267Z: passed2026-11-05T21:30:01.739741Z: passed2026-11-05T22:01:30.044364Z: passed2026-11-05T22:33:06.841986Z: passed2026-11-05T23:04:46.639121Z: passed2026-11-05T23:36:31.844021Z: passed2026-11-06T00:08:03.637786Z: passed2026-11-06T00:39:18.240944Z: passed2026-11-06T01:10:27.839395Z: passed2026-11-06T01:41:41.749157Z: passed2026-11-06T01:42:58.914614Z: passed2026-11-06T02:14:17.205521Z: passed
PassFailureAverage 1065 ms

Declared skills

Crypto

crypto

crypto capability provided by cryptography.

cryptography

Orchestration

orchestration

orchestration capability provided by langchain-core.

langchain-core

Agent Protocol

agent-protocol

agent protocol capability provided by mcp.

mcp

Observability

observability

observability capability provided by opentelemetry-api.

opentelemetry-api

Jwt

jwt

jwt capability provided by python-jose.

python-jose

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": "Encrypted LangChain Token Agent",
  "description": "Encrypted LangChain Token Agent: composes cryptography + langchain-core + mcp + opentelemetry-api + python-jose — crypto, orchestration, agent-protocol, observability, jwt via A2A + MCP.",
  "author": "VDA / GOSCE",
  "wellKnownURI": "https://cryptography-langchain-core-mcp-07d652.getvda.ai/.well-known/agent-card.json",
  "url": "https://cryptography-langchain-core-mcp-07d652.getvda.ai/a2a/",
  "version": "0.1.1",
  "provider": {
    "organization": "VDA / GOSCE",
    "url": "https://getvda.ai/"
  },
  "documentationUrl": "https://cryptography-langchain-core-mcp-07d652.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 cryptography.",
      "tags": [
        "cryptography"
      ],
      "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": "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": "jwt",
      "name": "Jwt",
      "description": "jwt capability provided by python-jose.",
      "tags": [
        "python-jose"
      ],
      "examples": [
        "Use the jwt 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": "65d26f09-3036-4650-9227-077f12bb6566",
  "category": "trust-safety",
  "category_secondary": null
}

Integrate this agent

curl -s https://a2aregistry.org/api/agents/65d26f09-3036-4650-9227-077f12bb6566

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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