{"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 — send header X-WALLET: 0x<your Base address> (no payment); then  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": "HERGERT 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 — send header X-WALLET: 0x<your Base address> (no payment); then  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": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0", "resource": "https://ics.hergertsynthora.com/service"}, "mcp": {"endpoint": "https://ics.hergertsynthora.com/mcp", "transport": "http-jsonrpc"}}