Chronary Availability API
The Availability API from Chronary — 4 operation(s) for availability.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Chronary Availability API
version: 1.0.0
description: 'Calendar-as-a-service API for AI agents.
Manage calendars, events, and availability for AI and human agents.
All endpoints require an API key passed as a Bearer token.
**Authentication:** `Authorization: Bearer chr_sk_...` or `Authorization: Bearer chr_ak_...`
**Rate limit:** 10 requests/second per API key. Exceeds return HTTP 429.
**Quotas:** Monthly operation limits by plan — see Billing & plans and Rate limits.
**Agent bootstrap:** Custom extensions prefixed `x-agent-*` describe the self-signup flow for AI agents. These are not part of any registered OpenAPI extension — they are a Chronary convention.'
contact:
name: Chronary Support
email: support@chronary.ai
url: https://docs.chronary.ai
servers:
- url: https://api.chronary.ai
description: Production
security:
- BearerAuth: []
tags:
- name: Availability
paths:
/v1/agents/{id}/availability:
get:
operationId: getAgentAvailability
summary: Get agent availability
description: Returns free/busy slots for all calendars owned by the agent.
tags:
- Availability
parameters:
- schema:
type: string
example: agt_01H9X4M2P5R8T6V0
description: Agent ID
required: true
description: Agent ID
name: id
in: path
- schema:
type: string
format: date-time
required: true
name: start
in: query
- schema:
type: string
format: date-time
required: true
name: end
in: query
- schema:
type: string
enum:
- 15m
- 30m
- 45m
- 1h
- 2h
required: false
name: duration
in: query
- schema:
type: string
enum:
- 15m
- 30m
- 45m
- 1h
- 2h
required: false
name: slot_duration
in: query
- schema:
type: string
enum:
- 'true'
- 'false'
default: 'false'
required: false
name: include_busy
in: query
- schema:
type: string
enum:
- 'true'
- 'false'
default: 'false'
required: false
name: allow_stale
in: query
responses:
'200':
description: Availability slots
content:
application/json:
schema:
$ref: '#/components/schemas/AgentAvailabilityResponse'
'400':
description: Validation error — invalid request body or query parameters
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'401':
description: Unauthorized — missing or invalid API key
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'404':
description: Resource not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'429':
description: Rate limited — 10 requests per second per key exceeded
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'500':
description: Internal server error
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/v1/calendars/{id}/availability:
get:
operationId: getCalendarAvailability
summary: Get calendar availability
description: Returns free/busy slots for a single calendar.
tags:
- Availability
parameters:
- schema:
type: string
example: cal_01H9X4M2P5R8T6V0
description: Calendar ID
required: true
description: Calendar ID
name: id
in: path
- schema:
type: string
format: date-time
required: true
name: start
in: query
- schema:
type: string
format: date-time
required: true
name: end
in: query
- schema:
type: string
enum:
- 15m
- 30m
- 45m
- 1h
- 2h
required: false
name: duration
in: query
- schema:
type: string
enum:
- 15m
- 30m
- 45m
- 1h
- 2h
required: false
name: slot_duration
in: query
- schema:
type: string
enum:
- 'true'
- 'false'
default: 'false'
required: false
name: include_busy
in: query
- schema:
type: string
enum:
- 'true'
- 'false'
default: 'false'
required: false
name: allow_stale
in: query
responses:
'200':
description: Availability slots
content:
application/json:
schema:
$ref: '#/components/schemas/CalendarAvailabilityResponse'
'400':
description: Validation error — invalid request body or query parameters
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'401':
description: Unauthorized — missing or invalid API key
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'404':
description: Resource not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'429':
description: Rate limited — 10 requests per second per key exceeded
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'500':
description: Internal server error
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/v1/calendars/{id}/availability-rules:
put:
operationId: setAvailabilityRules
summary: Set availability rules
description: Upsert buffer times and working hours for a calendar.
tags:
- Availability
parameters:
- schema:
type: string
example: cal_01H9X4M2P5R8T6V0
description: Calendar ID
required: true
description: Calendar ID
name: id
in: path
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/UpdateAvailabilityRules'
responses:
'200':
description: Availability rules
content:
application/json:
schema:
$ref: '#/components/schemas/AvailabilityRules'
'400':
description: Validation error — invalid request body or query parameters
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'401':
description: Unauthorized — missing or invalid API key
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'404':
description: Resource not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'429':
description: Rate limited — 10 requests per second per key exceeded
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'500':
description: Internal server error
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
get:
operationId: getAvailabilityRules
summary: Get availability rules
description: Returns the buffer and working hours rules for a calendar.
tags:
- Availability
parameters:
- schema:
type: string
example: cal_01H9X4M2P5R8T6V0
description: Calendar ID
required: true
description: Calendar ID
name: id
in: path
responses:
'200':
description: Availability rules
content:
application/json:
schema:
$ref: '#/components/schemas/AvailabilityRules'
'401':
description: Unauthorized — missing or invalid API key
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'404':
description: Resource not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'429':
description: Rate limited — 10 requests per second per key exceeded
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'500':
description: Internal server error
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
delete:
operationId: deleteAvailabilityRules
summary: Delete availability rules
description: Removes buffer times and working hours for a calendar.
tags:
- Availability
parameters:
- schema:
type: string
example: cal_01H9X4M2P5R8T6V0
description: Calendar ID
required: true
description: Calendar ID
name: id
in: path
responses:
'204':
description: Rules deleted
'401':
description: Unauthorized — missing or invalid API key
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'404':
description: Resource not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'429':
description: Rate limited — 10 requests per second per key exceeded
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'500':
description: Internal server error
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/v1/availability:
get:
operationId: getCrossAgentAvailability
summary: Get cross-agent availability
description: Returns intersected free/busy slots across multiple agents. Pass a comma-separated list of agent IDs in the `agents` query parameter. Optionally filter to specific calendar IDs with `calendars`. **Requires Pro plan.**
tags:
- Availability
parameters:
- schema:
type: string
minLength: 1
required: true
name: agents
in: query
- schema:
type: string
format: date-time
required: true
name: start
in: query
- schema:
type: string
format: date-time
required: true
name: end
in: query
- schema:
type: string
enum:
- 15m
- 30m
- 45m
- 1h
- 2h
required: false
name: duration
in: query
- schema:
type: string
enum:
- 15m
- 30m
- 45m
- 1h
- 2h
required: false
name: slot_duration
in: query
- schema:
type: string
required: false
name: calendars
in: query
- schema:
type: string
enum:
- 'true'
- 'false'
default: 'false'
required: false
name: include_busy
in: query
- schema:
type: string
enum:
- 'true'
- 'false'
default: 'false'
required: false
name: allow_stale
in: query
responses:
'200':
description: Intersected availability slots
headers:
X-Chronary-Plan:
description: The current plan of the authenticated organization (free | pro | scale)
schema:
type: string
enum:
- free
- pro
- scale
content:
application/json:
schema:
$ref: '#/components/schemas/AgentAvailabilityResponse'
'400':
description: Validation error — invalid request body or query parameters
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'401':
description: Unauthorized — missing or invalid API key
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'403':
description: Plan upgrade required — feature is not available on the current plan
headers:
X-Chronary-Plan:
description: The current plan of the authenticated organization (free | pro | scale)
schema:
type: string
enum:
- free
- pro
- scale
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'429':
description: Rate limited — 10 requests per second per key exceeded
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'500':
description: Internal server error
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
components:
schemas:
Slot:
type: object
properties:
start:
type: string
format: date-time
example: '2025-01-20T09:00:00.000Z'
end:
type: string
format: date-time
example: '2025-01-20T09:30:00.000Z'
required:
- start
- end
Error:
type: object
properties:
error:
type: object
properties:
type:
type: string
example: invalid_request
message:
type: string
example: The field "name" is required.
request_id:
type: string
example: req_01H9X4M2P5R8T6V0
required_plan:
type: string
example: pro
description: 'plan_required: the plan that unlocks the feature'
feature:
type: string
description: 'plan_required: the gated feature'
metric:
type: string
description: 'quota_exceeded and count caps: the metric at its limit (a PLAN_LIMITS key, accepted by POST /v1/billing/upgrade-requests)'
limit:
type: integer
description: 'quota_exceeded and count caps: the plan''s limit for `metric`'
upgrade_url:
type: string
description: Where a human upgrades the plan
docs_url:
type: string
contact_url:
type: string
description: 'Contract-managed plans: where to contact sales'
retry_after:
type: integer
description: Seconds until the request may be retried
required:
- type
- message
- request_id
required:
- error
AvailabilityRules:
type: object
properties:
id:
type: string
example: avr_01H9X4M2P5R8T6V0
calendar_id:
type: string
example: cal_01H9X4M2P5R8T6V0
buffer_before_minutes:
type: number
example: 10
buffer_after_minutes:
type: number
example: 5
working_hours:
example:
mon:
start: 09:00
end: '17:00'
timezone:
type: string
example: America/New_York
created_at:
type: string
format: date-time
example: '2025-01-15T10:00:00.000Z'
updated_at:
type: string
format: date-time
example: '2025-01-15T10:00:00.000Z'
required:
- id
- calendar_id
- buffer_before_minutes
- buffer_after_minutes
- timezone
- created_at
- updated_at
CalendarAvailabilityResponse:
type: object
properties:
calendar_id:
type: string
example: cal_01H9X4M2P5R8T6V0
slots:
type: array
items:
$ref: '#/components/schemas/Slot'
busy:
type: array
items:
type: object
properties:
start:
type: string
format: date-time
example: '2025-01-20T09:00:00.000Z'
end:
type: string
format: date-time
example: '2025-01-20T09:30:00.000Z'
required:
- start
- end
description: Flat busy-block list. Present only when include_busy=true.
availability_state:
type: string
enum:
- complete
- stale
- partial
- unavailable
description: Whether all required Chronary and authorized human-calendar data was current for this result.
sources:
type: object
properties:
chronary:
type: string
enum:
- current
external:
type: string
enum:
- current
- stale
- partial
- unavailable
last_synced_at:
type:
- string
- 'null'
format: date-time
required:
- chronary
- external
warnings:
type: array
items:
type: object
properties:
code:
type: string
enum:
- availability_incomplete
message:
type: string
required:
- code
- message
required:
- calendar_id
- slots
- availability_state
- sources
- warnings
AgentAvailabilityResponse:
type: object
properties:
agents:
type: array
items:
type: string
example:
- agt_01H9X4M2P5R8T6V0
slots:
type: array
items:
$ref: '#/components/schemas/Slot'
per_agent_busy:
type: object
additionalProperties:
type: array
items:
type: object
properties:
start:
type: string
format: date-time
example: '2025-01-20T09:00:00.000Z'
end:
type: string
format: date-time
example: '2025-01-20T09:30:00.000Z'
calendar_id:
type: string
example: cal_01H9X4M2P5R8T6V0
required:
- start
- end
description: Busy blocks keyed by agent id. Present only when include_busy=true.
example:
agt_01H9X4M2P5R8T6V0:
- start: '2025-01-20T09:00:00.000Z'
end: '2025-01-20T09:30:00.000Z'
calendar_id: cal_01H9X4M2P5R8T6V0
availability_state:
type: string
enum:
- complete
- stale
- partial
- unavailable
description: Whether all required Chronary and authorized human-calendar data was current for this result.
sources:
type: object
properties:
chronary:
type: string
enum:
- current
external:
type: string
enum:
- current
- stale
- partial
- unavailable
last_synced_at:
type:
- string
- 'null'
format: date-time
required:
- chronary
- external
warnings:
type: array
items:
type: object
properties:
code:
type: string
enum:
- availability_incomplete
message:
type: string
required:
- code
- message
required:
- agents
- slots
- availability_state
- sources
- warnings
UpdateAvailabilityRules:
type: object
properties:
buffer_before_minutes:
type: integer
minimum: 0
maximum: 120
default: 0
buffer_after_minutes:
type: integer
minimum: 0
maximum: 120
default: 0
working_hours:
type:
- object
- 'null'
properties:
mon:
type: object
properties:
start:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
end:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
required:
- start
- end
tue:
type: object
properties:
start:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
end:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
required:
- start
- end
wed:
type: object
properties:
start:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
end:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
required:
- start
- end
thu:
type: object
properties:
start:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
end:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
required:
- start
- end
fri:
type: object
properties:
start:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
end:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
required:
- start
- end
sat:
type: object
properties:
start:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
end:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
required:
- start
- end
sun:
type: object
properties:
start:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
end:
type: string
pattern: ^([01]\d|2[0-3]):[0-5]\d$
required:
- start
- end
default: null
timezone:
type: string
minLength: 1
maxLength: 64
default: UTC
securitySchemes:
BearerAuth:
type: http
scheme: bearer
description: 'API key with `chr_sk_*` for org-level access or `chr_ak_*` for agent-scoped access. Pass in the Authorization header: `Authorization: Bearer chr_sk_...`'
SessionAuth:
type: apiKey
in: cookie
name: chronary_session
description: Console session JWT (HS256), issued by sign-in and sent as the `chronary_session` cookie (a Bearer JWT is also accepted). This is NOT a chr_sk_*/chr_ak_* API key — API keys are rejected with 401 on these endpoints.
x-agent-self-signup:
url: https://api.chronary.ai/v1/agent/sign-up
verify_url: https://api.chronary.ai/v1/agent/verify
restricted_key_returned: true
human_in_the_loop: otp_email
rate_limit: 5 requests per 60s per client IP
x-agent-bootstrap-script:
npx: npx @chronary/agent-init@latest
shell: https://chronary.ai/agent-init.sh
description: One-liner that performs sign-up, prompts for OTP, verifies, and creates a smoke calendar. Accepts CHRONARY_EMAIL and CHRONARY_OTP env vars for non-interactive flows.
x-llms-txt: https://docs.chronary.ai/llms.txt
x-llms-full-txt: https://docs.chronary.ai/llms-full.txt
x-mcp-server-card: https://chronary.ai/.well-known/mcp/server-card.json
x-api-catalog: https://chronary.ai/.well-known/api-catalog