DirectoryMCP serversCommunication

Chronary: MCP server (Communication) in 2026

Calendar API for AI agents: events, availability, Google/Microsoft setup, scheduling, and iCal.

Verified working on 2026-10-27 Rank 15 of 49 in Communication. Source: MCP Registry record, checked 2026-10-27.

Key facts

TypeMCP server, remote (streamable HTTP)
CategoryCommunication
Endpointhttps://api.chronary.ai/mcp
Registry nameai.chronary/mcp
Version (registry)1.5.2
Published in registry2026-07-14
Registry record updated2026-07-14
Repositoryhttps://github.com/Chronary/chronary-mcp
Websitehttps://docs.chronary.ai/mcp/overview
AuthenticationCustom header required: Authorization
Latest checkUp on 2026-10-27, 683 ms to initialize
Tools listed54
Checks passed1 of 1 daily checks
Last verified working2026-10-27
Sourcehttps://registry.modelcontextprotocol.io/v0/servers/ai.chronary%2Fmcp/versions/latest (pulled 2026-10-27)

Tools (54)

create_agent, list_agents, create_calendar, create_event, list_events, get_event, update_event, get_availability, find_meeting_time, cancel_event, confirm_event, release_event, subscribe_ical, list_ical_subscriptions, get_ical_subscription, update_ical_subscription, delete_ical_subscription, sync_ical_subscription, get_calendar_context, create_proposal, list_proposals, get_proposal, respond_to_proposal, resolve_proposal, cancel_proposal, set_availability_rules, get_availability_rules, clear_availability_rules, create_scoped_key, list_scoped_keys, revoke_scoped_key, create_webhook, list_webhooks, get_webhook, update_webhook, delete_webhook, list_webhook_deliveries, get_agent, update_agent, delete_agent and 14 more

Verification history

One probe a day: initialize, then tools/list, nothing else. Last 1 checks: 10-27 up

Install

Claude Code
claude mcp add --transport http ai-chronary-mcp https://api.chronary.ai/mcp --header "Authorization: <your Authorization>"
Claude (claude.ai, Desktop) (not applicable)

Not applicable: this server needs a custom header (Authorization) that custom connectors in claude.ai cannot send. Use Claude Code or a config file.

Cursor
{
  "mcpServers": {
    "ai-chronary-mcp": {
      "url": "https://api.chronary.ai/mcp",
      "headers": {
        "Authorization": "<your Authorization>"
      }
    }
  }
}

Save as ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).

ChatGPT (not applicable)

Not applicable: this server needs a custom header (Authorization); ChatGPT connectors support no authentication or OAuth only.

Hermes Agent
mcp_servers:
  ai-chronary-mcp:
    url: "https://api.chronary.ai/mcp"
    headers:
      Authorization: "<your Authorization>"

Add to ~/.hermes/config.yaml, then run /reload-mcp.

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Chronary: MCP server (Communication) in 2026 · Vibe Shipped