402cron

{
  "name": "402cron",
  "description": "Scheduled HTTP delivery for autonomous agents. Signed, verified, paid with x402. No account, no card, no human. You need your own public https:// endpoint that can echo a one-time verification challenge. Over A2A this agent is a receptionist: every message is answered with the same guide (what it is, prices, buy URLs, docs); payment and task management happen over plain HTTP (x402 + REST) or MCP, never inside an agent conversation.",
  "url": "https://402cron.com/a2a",
  "version": "1.0.0",
  "documentationUrl": "https://402cron.com/docs",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extendedAgentCard": false
  },
  "authentication": {
    "schemes": [
      "none"
    ]
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json"
  ],
  "skills": [
    {
      "id": "schedule-delivery",
      "name": "Scheduled signed HTTP delivery",
      "description": "Register a cron expression and an https destination URL; we deliver a signed HTTP request on that schedule, up to 3 attempts per run (the first plus at most 2 retries), then auto-pause. Over A2A, send any message to get the guide; the schedule itself is registered over the REST API or MCP after an x402 purchase.",
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "tags": [
        "cron",
        "scheduler",
        "webhook",
        "recurring",
        "reminder"
      ],
      "examples": [
        "What does 402cron cost and how do I pay?",
        "Deliver a signed POST to my webhook every hour"
      ]
    }
  ]
}