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 · Agent orchestration
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 · 96.5% across 30 days

2026-10-15T15:16:15.202816Z: passed2026-10-15T15:47:23.891832Z: passed2026-10-15T16:18:30.905193Z: passed2026-10-15T16:49:36.194030Z: passed2026-10-15T17:20:49.095846Z: passed2026-10-15T17:51:57.607178Z: passed2026-10-15T18:23:51.789705Z: passed2026-10-15T18:55:06.003055Z: passed2026-10-15T19:26:10.406284Z: passed2026-10-15T19:57:41.099297Z: passed2026-10-15T20:28:50.893382Z: passed2026-10-15T21:00:12.103230Z: passed2026-10-15T21:31:36.595709Z: passed2026-10-15T22:02:37.494198Z: passed2026-10-15T22:33:55.506878Z: passed2026-10-15T23:05:07.005834Z: passed2026-10-15T23:36:16.299818Z: passed2026-10-16T00:07:33.297185Z: passed2026-10-16T00:38:47.706640Z: passed2026-10-16T01:10:31.805907Z: passed2026-10-16T01:41:45.802157Z: passed2026-10-16T02:13:03.291975Z: passed2026-10-16T02:44:10.304865Z: passed2026-10-16T03:15:24.503894Z: passed2026-10-16T03:46:38.907348Z: passed2026-10-16T04:17:43.591891Z: passed2026-10-16T04:48:58.293741Z: passed2026-10-16T05:20:13.689328Z: passed2026-10-16T05:51:33.107817Z: passed2026-10-16T06:22:39.400341Z: passed2026-10-16T06:53:48.903114Z: passed2026-10-16T07:24:57.507443Z: passed2026-10-16T07:56:12.601529Z: passed2026-10-16T08:12:39.823181Z: passed2026-10-16T08:45:05.431517Z: passed2026-10-16T09:17:14.121379Z: passed2026-10-16T09:48:21.332489Z: passed2026-10-16T10:19:18.234716Z: passed2026-10-16T10:50:28.025619Z: passed2026-10-16T11:21:26.422479Z: passed2026-10-16T11:52:21.430989Z: passed2026-10-16T12:23:19.435061Z: passed2026-10-16T12:54:20.532347Z: passed2026-10-16T13:25:21.719904Z: passed2026-10-16T13:56:23.527663Z: passed2026-10-16T14:27:26.033295Z: passed2026-10-16T14:58:25.919844Z: passed2026-10-16T15:29:26.532767Z: passed2026-10-16T16:00:35.023014Z: passed2026-10-16T16:31:36.429298Z: passed2026-10-16T17:02:39.940307Z: passed2026-10-16T17:33:44.430210Z: passed2026-10-16T18:04:54.825128Z: passed2026-10-16T18:06:17.147662Z: passed2026-10-16T18:24:12.010572Z: passed2026-10-16T18:33:37.223877Z: passed2026-10-16T19:02:18.885705Z: passed2026-10-16T19:33:32.675592Z: passed2026-10-16T20:04:41.268976Z: passed2026-10-16T20:11:24.075407Z: passed2026-10-16T20:42:32.071247Z: passed2026-10-16T21:13:38.475160Z: passed2026-10-16T21:44:46.196760Z: passed2026-10-16T22:15:55.584246Z: passed2026-10-16T22:47:04.171488Z: passed2026-10-16T23:18:09.775940Z: passed2026-10-16T23:49:24.474986Z: passed2026-10-17T00:20:30.177138Z: passed2026-10-17T00:51:40.876193Z: passed2026-10-17T01:23:24.023210Z: passed2026-10-17T01:54:54.178226Z: passed2026-10-17T02:26:30.098683Z: passed2026-10-17T02:58:00.176957Z: passed2026-10-17T03:29:29.697314Z: passed2026-10-17T04:01:04.777831Z: passed2026-10-17T04:32:17.475090Z: passed2026-10-17T05:03:34.876055Z: passed2026-10-17T05:34:53.426903Z: passed2026-10-17T06:06:15.869581Z: passed2026-10-17T06:37:38.977437Z: passed2026-10-17T07:08:50.875526Z: passed2026-10-17T07:40:09.070187Z: passed2026-10-17T08:11:36.574870Z: passed2026-10-17T08:43:10.071704Z: passed2026-10-17T09:15:55.170945Z: passed2026-10-17T09:48:15.674202Z: passed2026-10-17T10:19:45.670023Z: passed2026-10-17T10:51:04.772078Z: passed2026-10-17T11:22:43.071810Z: passed2026-10-17T11:54:08.094747Z: passed2026-10-17T12:25:18.074171Z: passed2026-10-17T12:56:41.870359Z: passed2026-10-17T13:27:59.970301Z: passed2026-10-17T13:59:26.321525Z: passed2026-10-17T14:30:42.078347Z: passed2026-10-17T15:01:59.971153Z: passed2026-10-17T15:33:09.278023Z: passed2026-10-17T16:04:31.680415Z: passed2026-10-17T16:36:07.091720Z: passed2026-10-17T17:07:19.186295Z: passed
PassFailureAverage 1135 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": null
  },
  "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": "agent-orchestration"
}

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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