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verified live · 20h ago
chronary-mcp
Calendar API for AI agents: events, availability, Google/Microsoft setup, scheduling, and iCal.
Tools
54
GitHub stars
—
Installs / wk
—
Licence
—
Transport
streamable-http, stdio
Last checked
20h ago
Tools & capabilities
54 toolsRead from the running server on 20h ago.
accept_terms
tos_version*
Re-accept the current Chronary terms of service on behalf of the calling org. Use this when responses carry the Chronary-Terms-Upgrade-Required header — a material ToS bump otherwi… Re-accept the current Chronary terms of service on behalf of the calling org. Use this when responses carry the Chronary-Terms-Upgrade-Required header — a material ToS bump otherwise leaves MCP-only agents stuck without a console session. Pass the current tos_version (read it from GET /v1/auth/terms/current). Requires an org-level API key (chr_sk_*); agent-scoped keys cannot accept org-wide terms.
cancel_connection_link
connection_link_id*
Cancel a pending human-calendar setup request. This invalidates the setup URL and does not disconnect an already completed Google or Microsoft connection. Cancel a pending human-calendar setup request. This invalidates the setup URL and does not disconnect an already completed Google or Microsoft connection.
cancel_event
event_id*calendar_idoccurrence_start
Delete or cancel an event from a calendar. Use this to remove, cancel, or delete any scheduled event or appointment. The event is marked cancelled and excluded from future availabi… Delete or cancel an event from a calendar. Use this to remove, cancel, or delete any scheduled event or appointment. The event is marked cancelled and excluded from future availability calculations. For a recurring series, pass `occurrence_start` to cancel just that one occurrence (the series continues); omit it to cancel the whole series. `calendar_id` is optional — if omitted the calendar is looked up from the event. Provide `calendar_id` to fail fast on cross-calendar typos.
cancel_proposal
proposal_id*
Cancel an open proposal. Fires a proposal.cancelled webhook with reason="organizer_cancelled". Requires an org-level API key. Pro plan only. Cancel an open proposal. Fires a proposal.cancelled webhook with reason="organizer_cancelled". Requires an org-level API key. Pro plan only.
clear_availability_rules
calendar_id*
Remove the availability rules from a calendar, reverting to the default (no buffers, no working-hours mask). Returns the deleted row, or an error if none were set. Remove the availability rules from a calendar, reverting to the default (no buffers, no working-hours mask). Returns the deleted row, or an error if none were set.
confirm_event
event_id*
Promote a held event to a confirmed booking. The event must currently have status="hold" and its hold_expires_at must not have passed. After confirmation, event.started and event.e… Promote a held event to a confirmed booking. The event must currently have status="hold" and its hold_expires_at must not have passed. After confirmation, event.started and event.ended lifecycle webhooks fire at the scheduled times.
create_agent
name*type*description
Register your agent (AI assistant, human participant, or resource) with Chronary so it can own calendars, events, and webhooks. Register your agent (AI assistant, human participant, or resource) with Chronary so it can own calendars, events, and webhooks.
create_booking_page
title*activetimezonecalendar_id*descriptionwindow_days
+4
Create a public booking page (a hosted scheduling link) for a calendar. Returns a booking_url to send to a human; when they pick a slot, a confirmed event is created on the calenda… Create a public booking page (a hosted scheduling link) for a calendar. Returns a booking_url to send to a human; when they pick a slot, a confirmed event is created on the calendar and an event.created webhook fires with a booking_page_id field. Set availability_constraints to restrict to weekly working hours; existing calendar events always block slots.
create_calendar
name*agent_idtimezone*default_reminders
Create a calendar to hold events and track availability. Calendars are required before creating events — call this first when setting up a new agent. An agent can have multiple cal… Create a calendar to hold events and track availability. Calendars are required before creating events — call this first when setting up a new agent. An agent can have multiple calendars (e.g. "Work", "Personal"). Org-level calendars (no agent_id) can be used as shared resources like meeting rooms.
create_connection_link
calendar_id*capabilitiespublication_policy
Request human setup of Google Calendar or Microsoft Outlook for a Chronary calendar. Give setup_url to a human; the agent never receives OAuth credentials, provider calendar names,… Request human setup of Google Calendar or Microsoft Outlook for a Chronary calendar. Give setup_url to a human; the agent never receives OAuth credentials, provider calendar names, or event data. The secret URL is returned only on first creation. If reused=true and setup_url is null, retain the original URL or cancel this link and create a replacement.
create_event
title*statusall_dayend_time*remindersstart_time*
+5
Create a booking, appointment, meeting, hold, or any scheduled event on a calendar. The calendar_id comes from create_calendar or list_events. Once created, this event blocks the a… Create a booking, appointment, meeting, hold, or any scheduled event on a calendar. The calendar_id comes from create_calendar or list_events. Once created, this event blocks the agent's availability during that time and appears in availability queries. Use status="hold" with hold_expires_at to tentatively reserve a slot that auto-releases on TTL.
create_proposal
slots*title*expires_atcalendar_id*descriptionorganizer_agent_id*
+1
Create a scheduling proposal — send a set of candidate time slots to one or more participant agents so they can accept, decline, or counter-propose. The organizer agent owns the pr… Create a scheduling proposal — send a set of candidate time slots to one or more participant agents so they can accept, decline, or counter-propose. The organizer agent owns the proposal; once every participant responds, the system auto-resolves to the highest-scoring slot (or cancels if all decline). Requires an org-level API key. Pro plan only.
create_scoped_key
labelagent_id*
Create an agent-scoped API key (chr_ak_*) that can only act on behalf of a single agent. Use this to self-provision or rotate per-agent credentials. The plaintext key is returned e… Create an agent-scoped API key (chr_ak_*) that can only act on behalf of a single agent. Use this to self-provision or rotate per-agent credentials. The plaintext key is returned exactly once in the response — store it immediately, it cannot be retrieved later. Requires an org-level API key.
create_webhook
url*events*
Create a webhook subscription so the org receives HTTP POST notifications when events occur (e.g. event.created, proposal.confirmed). The signing secret is returned ONCE in this re… Create a webhook subscription so the org receives HTTP POST notifications when events occur (e.g. event.created, proposal.confirmed). The signing secret is returned ONCE in this response — store it to verify the HMAC-SHA256 signature on delivered payloads. Requires an org-level API key.
delete_agent
agent_id*
Decommission an agent. This marks the agent as decommissioned and revokes all of its scoped API keys. Requires an org-level API key — agent-scoped keys cannot delete agents. Decommission an agent. This marks the agent as decommissioned and revokes all of its scoped API keys. Requires an org-level API key — agent-scoped keys cannot delete agents.
delete_booking_page
booking_page_id*
Delete (deactivate) a booking page. Its hosted URL stops resolving; already-booked events are unaffected. Delete (deactivate) a booking page. Its hosted URL stops resolving; already-booked events are unaffected.
delete_calendar
calendar_id*
Delete a calendar (soft delete). Its events are no longer returned and it stops contributing to availability. Agent-scoped keys may only delete calendars owned by their agent. Delete a calendar (soft delete). Its events are no longer returned and it stops contributing to availability. Agent-scoped keys may only delete calendars owned by their agent.
delete_ical_subscription
subscription_id*
Delete an external iCal feed subscription. Events previously synced from the feed are no longer refreshed. Delete an external iCal feed subscription. Events previously synced from the feed are no longer refreshed.
delete_webhook
webhook_id*
Permanently delete a webhook subscription. This frees its endpoint slot against the per-plan cap. Requires an org-level API key. Permanently delete a webhook subscription. This frees its endpoint slot against the per-plan cap. Requires an org-level API key.
find_meeting_time
endstartagentsdurationend_timeagent_ids
+4
Find slots when multiple agents are free across Chronary calendars and any human calendars authorized for each agent. This tool is fail-closed: always inspect `availability_state`… Find slots when multiple agents are free across Chronary calendars and any human calendars authorized for each agent. This tool is fail-closed: always inspect `availability_state` and `warnings` before using slots. Accepts `agents`/`start`/`end` or their aliases.
get_agent
agent_id*
Fetch a single agent by ID. An agent represents an AI assistant, human, or shared resource (e.g. a meeting room). Agent-scoped API keys may only read their own agent. Fetch a single agent by ID. An agent represents an AI assistant, human, or shared resource (e.g. a meeting room). Agent-scoped API keys may only read their own agent.
get_audit_log
tofromlimitactioncursoractor_key_prefix
List audit-log entries for the calling org — mutating operations and auth-lifecycle events, newest first. Results are clamped to the plan's retention window. Requires an org-level… List audit-log entries for the calling org — mutating operations and auth-lifecycle events, newest first. Results are clamped to the plan's retention window. Requires an org-level API key (chr_sk_*); agent-scoped keys cannot read the org-wide audit log.
get_availability
endstartagent_id*durationend_timestart_time
+2
Check when a single agent is free across its Chronary calendars and any human calendars authorized for that agent. This tool is fail-closed: always inspect `availability_state` and… Check when a single agent is free across its Chronary calendars and any human calendars authorized for that agent. This tool is fail-closed: always inspect `availability_state` and `warnings` before using slots. Accepts `start`/`end` or the `start_time`/`end_time` aliases.
get_availability_rules
calendar_id*
Read the buffer times and working-hours rules configured on a calendar. Returns the rules row, or an error if none are set. Read the buffer times and working-hours rules configured on a calendar. Returns the rules row, or an error if none are set.
get_booking_page
booking_page_id*
Fetch a single booking page by ID, including its public booking_url and settings. Fetch a single booking page by ID, including its public booking_url and settings.
get_calendar
calendar_id*
Fetch a single calendar by ID, including its name, timezone, agent status, and default reminders. Agent-scoped keys may only read calendars owned by their agent. Fetch a single calendar by ID, including its name, timezone, agent status, and default reminders. Agent-scoped keys may only read calendars owned by their agent.
get_calendar_context
calendar_id*
Get a calendar's temporal context in a single call: the current event (if one is happening now), the next upcoming event, recent past events, a short upcoming window, and the ownin… Get a calendar's temporal context in a single call: the current event (if one is happening now), the next upcoming event, recent past events, a short upcoming window, and the owning agent's status (idle/working/waiting/error). Use this to answer "what is this agent doing right now?" without issuing multiple list_events queries.
get_connection_link
connection_link_id*
Poll a human-calendar setup request. Returns provider-neutral status and resulting connection ID when complete, but never replays the bearer setup URL or exposes human calendar dat… Poll a human-calendar setup request. Returns provider-neutral status and resulting connection ID when complete, but never replays the bearer setup URL or exposes human calendar data.
get_event
event_id*calendar_id
Retrieve a single event by ID, including its title, times, status, location, reminders, and metadata. Works for both internally created events and externally synced iCal events. `c… Retrieve a single event by ID, including its title, times, status, location, reminders, and metadata. Works for both internally created events and externally synced iCal events. `calendar_id` is optional — if omitted the calendar is resolved from the event. Provide `calendar_id` to fail fast on cross-calendar typos.
get_ical_subscription
subscription_id*
Get a single external iCal feed subscription by id, including its sync status, last sync time, and last error. Get a single external iCal feed subscription by id, including its sync status, last sync time, and last error.
get_proposal
proposal_id*
Get a scheduling proposal by id, including its slots and per-participant responses. Requires an org-level API key. Get a scheduling proposal by id, including its slots and per-participant responses. Requires an org-level API key.
get_usage
Get the calling org's current-period usage and plan limits (agents, calendars, events, API calls, webhooks, availability queries, iCal subscriptions, proposals, scoped keys, holds,… Get the calling org's current-period usage and plan limits (agents, calendars, events, API calls, webhooks, availability queries, iCal subscriptions, proposals, scoped keys, holds, cross-calendar queries). Requires an org-level API key (chr_sk_*); agent-scoped keys cannot read org-wide usage.
get_webhook
webhook_id*
Get a single webhook subscription by id, including its subscribed event types and active state. The signing secret is never returned. Requires an org-level API key. Get a single webhook subscription by id, including its subscribed event types and active state. The signing secret is never returned. Requires an org-level API key.
list_agents
typelimitoffsetstatus
List all agents in your organization List all agents in your organization
list_booking_pages
limitoffset
List booking pages in the org. Agent-scoped keys see only pages on their own agent's calendars. List booking pages in the org. Agent-scoped keys see only pages on their own agent's calendars.
list_calendars
limitoffsetincludeagent_id
List calendars in the org. Org-level API keys see every calendar (agent-owned and shared); agent-scoped keys see only their own agent's calendars. Use this to discover calendar IDs… List calendars in the org. Org-level API keys see every calendar (agent-owned and shared); agent-scoped keys see only their own agent's calendars. Use this to discover calendar IDs before creating or listing events.
list_events
limitexpandoffsetsourcestatusagent_id
+3
List events on a calendar or across an agent's calendars, including internally created events and externally synced events from iCal subscriptions (e.g. Google Calendar, Outlook).… List events on a calendar or across an agent's calendars, including internally created events and externally synced events from iCal subscriptions (e.g. Google Calendar, Outlook). Provide `calendar_id` OR `agent_id`. Narrow with `start_after`/`start_before` (time window), `status`, and `source`.
list_ical_subscriptions
limitoffsetstatusagent_id*
List an agent's external iCal feed subscriptions (e.g. linked Google Calendar / Outlook feeds), including their sync status and last sync time. List an agent's external iCal feed subscriptions (e.g. linked Google Calendar / Outlook feeds), including their sync status and last sync time.
list_proposals
limitoffsetstatusorganizer_agent_id
List scheduling proposals for the org. Filter by status (pending|confirmed|expired|cancelled) or organizer_agent_id. Requires an org-level API key. List scheduling proposals for the org. Filter by status (pending|confirmed|expired|cancelled) or organizer_agent_id. Requires an org-level API key.
list_scoped_keys
List all live (non-revoked) agent-scoped API keys for this org. Returns key metadata only (id, prefix, agent_id, label, created_at) — never the plaintext secret. Requires an org-le… List all live (non-revoked) agent-scoped API keys for this org. Returns key metadata only (id, prefix, agent_id, label, created_at) — never the plaintext secret. Requires an org-level API key.
list_webhook_deliveries
limitoffsetstatuswebhook_id*include_payload
List delivery attempts for a webhook subscription, with per-status counts (pending/delivered/failed). Use this to debug failing deliveries. Requires an org-level API key. List delivery attempts for a webhook subscription, with per-status counts (pending/delivered/failed). Use this to debug failing deliveries. Requires an org-level API key.
list_webhooks
limitoffset
List the org's webhook subscriptions with their subscribed event types and active state. Signing secrets are never returned. Requires an org-level API key. List the org's webhook subscriptions with their subscribed event types and active state. Signing secrets are never returned. Requires an org-level API key.
release_event
event_id*
Manually release a held event before its hold_expires_at. The event must currently have status="hold". Frees the slot for other agents to book. Manually release a held event before its hold_expires_at. The event must currently have status="hold". Frees the slot for other agents to book.
resolve_proposal
proposal_id*
Force-resolve an open proposal using responses collected so far. Picks the highest-scoring slot among those accepted by the most participants and creates a confirmed calendar event… Force-resolve an open proposal using responses collected so far. Picks the highest-scoring slot among those accepted by the most participants and creates a confirmed calendar event. If every response was "decline", the proposal is cancelled instead. Use when you want to close out a proposal without waiting for every participant. Requires an org-level API key. Pro plan only.
respond_to_proposal
messageagent_id*response*proposal_id*counter_slotsselected_slot_id
Submit a response (accept / decline / counter) on behalf of one participant agent to an open proposal. An "accept" requires the slot id from the proposal; a "counter" can suggest a… Submit a response (accept / decline / counter) on behalf of one participant agent to an open proposal. An "accept" requires the slot id from the proposal; a "counter" can suggest alternative slots. When all participants have responded the proposal auto-resolves — no separate resolve call needed in the normal flow. Requires an org-level API key. Pro plan only.
revoke_scoped_key
key_id*
Revoke an agent-scoped API key by ID. Revocation is permanent (cannot be un-revoked); the key stops authenticating within about a minute. Requires an org-level API key. Revoke an agent-scoped API key by ID. Revocation is permanent (cannot be un-revoked); the key stops authenticating within about a minute. Requires an org-level API key.
set_availability_rules
timezonecalendar_id*working_hoursbuffer_after_minutesbuffer_before_minutes
Set or replace the availability rules on a calendar — buffer times before/after events and optional per-day working hours. When these rules are set, every availability query on thi… Set or replace the availability rules on a calendar — buffer times before/after events and optional per-day working hours. When these rules are set, every availability query on this calendar automatically applies them (busy-block expansion for buffers, masking outside working hours). Upsert: overwrites any existing rules.
subscribe_ical
url*labelagent_id*calendar_id*
Link an external iCal feed (e.g. a human's Google Calendar) to an agent's calendar so external events appear in availability calculations. The target calendar must be owned by the… Link an external iCal feed (e.g. a human's Google Calendar) to an agent's calendar so external events appear in availability calculations. The target calendar must be owned by the specified agent — create the calendar with that agent_id first (org-level calendars without an agent_id cannot host external iCal subscriptions; create a dedicated per-agent calendar for sync targets).
sync_ical_subscription
subscription_id*
Trigger an immediate sync of an external iCal feed subscription instead of waiting for the next scheduled poll. Returns once the sync has been queued. Trigger an immediate sync of an external iCal feed subscription instead of waiting for the next scheduled poll. Returns once the sync has been queued.
update_agent
namestatusagent_id*metadatadescription
Update an agent's name, description, metadata, or status (active/paused). Requires an org-level API key — agent-scoped keys cannot mutate agents. Update an agent's name, description, metadata, or status (active/paused). Requires an org-level API key — agent-scoped keys cannot mutate agents.
update_calendar
namemetadatatimezonecalendar_id*agent_statusdefault_reminders
Update a calendar's name, timezone, agent status, default reminders, or metadata. Agent-scoped keys may only update calendars owned by their agent. Update a calendar's name, timezone, agent status, default reminders, or metadata. Agent-scoped keys may only update calendars owned by their agent.
update_event
titlestatusall_dayend_timeevent_id*metadata
+5
Reschedule or edit an event — change its title, description, start/end times, location, status, reminders, or metadata. Use this to move an appointment to a new time or update its… Reschedule or edit an event — change its title, description, start/end times, location, status, reminders, or metadata. Use this to move an appointment to a new time or update its details. Provide only the fields you want to change. Holds cannot be edited via this tool (use confirm_event / release_event). External iCal events are read-only. `calendar_id` is optional — if omitted it is resolved from the event.
update_ical_subscription
urllabelsubscription_id*
Update an external iCal feed subscription — change its label or its feed URL. Changing the URL forces a full re-sync on the next poll. Update an external iCal feed subscription — change its label or its feed URL. Changing the URL forces a full re-sync on the next poll.
update_webhook
urlactiveeventswebhook_id*