Generate a valid iCalendar (.ics, RFC 5545) file from event data

{
  "protocolVersion": "0.3.0",
  "name": "Generate a valid iCalendar (.ics, RFC 5545) file from event data",
  "description": "Generate a valid iCalendar (.ics, RFC 5545) file from event data: title, start/end (any ISO 8601 -> UTC), location, description, organizer, attendees. Correct escaping, line-folding and UID. Zero external dependencies, no hallucination. Use it to create calendar invites agents can attach or send. Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet \u2014 send header X-WALLET: 0x<your Base address> (no payment); then 0.001 USDC per call.",
  "url": "https://ics.hergertsynthora.com/service",
  "preferredTransport": "HTTP+JSON",
  "additionalInterfaces": [
    {
      "url": "https://ics.hergertsynthora.com/service",
      "transport": "HTTP+JSON"
    },
    {
      "url": "https://ics.hergertsynthora.com/a2a",
      "transport": "JSONRPC"
    }
  ],
  "version": "1.0.0",
  "provider": {
    "organization": "SYNTHORA",
    "url": "https://hergertsynthora.com"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "ics",
      "name": "ics",
      "description": "Generate a valid iCalendar (.ics, RFC 5545) file from event data: title, start/end (any ISO 8601 -> UTC), location, description, organizer, attendees. Correct escaping, line-folding and UID. Zero external dependencies, no hallucination. Use it to create calendar invites agents can attach or send. Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet \u2014 send header X-WALLET: 0x<your Base address> (no payment); then 0.001 USDC per call.",
      "tags": [
        "ics",
        "x402",
        "synthora",
        "m2m",
        "a2a"
      ],
      "examples": [
        "{\"title\": \"Sync\", \"start\": \"2026-08-01T15:00:00Z\", \"end\": \"2026-08-01T16:00:00Z\", \"location\": \"Online\"}"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "inputSchema": {
        "type": "object",
        "properties": {
          "title": {
            "type": "string"
          },
          "start": {
            "type": "string",
            "description": "ISO 8601 start"
          },
          "end": {
            "type": "string"
          },
          "location": {
            "type": "string"
          },
          "description": {
            "type": "string"
          }
        },
        "required": [
          "title",
          "start"
        ]
      }
    }
  ],
  "securitySchemes": {
    "x402": {
      "type": "http",
      "scheme": "x402",
      "description": "HTTP 402 micropayment. 1000 atomic USDC on eip155:8453."
    }
  },
  "security": [
    {
      "x402": []
    }
  ],
  "x402": {
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167",
    "resource": "https://ics.hergertsynthora.com/service"
  },
  "mcp": {
    "endpoint": "https://ics.hergertsynthora.com/mcp",
    "transport": "http-jsonrpc"
  }
}