API reference/POST /v1/availability/search

POST /v1/availability/search

requires akidempotentaudited decision

Search available candidate slots without creating a hold.

Request

POST /v1/availability/search HTTP/1.1
Authorization: Bearer ak_01HX7QQM…
Content-Type: application/json

{
  "duration_minutes": 45,
  "earliest_start": "2026-06-01T09:00:00Z",
  "latest_end": "2026-06-01T18:00:00Z",
  "meeting_class": "recruiting_interview",
  "owner_email": "alex@acme.com",
  "calendar_type": "work",
  "next_available_lookahead_hours": 0
}

owner_email

string:emailEmail address.

calendar_type

string

duration_minutesreq

integerMinimum 5. Maximum 480.

earliest_startreq

string:date-timeUTC date-time string.

latest_endreq

string:date-timeUTC date-time string.

meeting_classreq

string

next_available_lookahead_hours

integerMinimum 1. Maximum 72.

max_results

integerMinimum 1. Maximum 100.

Response

Returns 200 OK with the response body below. Successful booking arbitration writes an audit row you can query through the audit log.

200 OK · example

HTTP/1.1 200 OK
Content-Type: application/json

{
  "requested_window": {
    "start": "2026-06-10T09:00:00Z",
    "end":   "2026-06-10T17:00:00Z"
  },
  "candidates": [
    { "start": "2026-06-10T10:00:00Z", "end": "2026-06-10T10:45:00Z", "risk": "free" },
    { "start": "2026-06-10T11:00:00Z", "end": "2026-06-10T11:45:00Z", "risk": "free" }
  ],
  "candidate_limit":        50,
  "available_candidate_count": 2,
  "candidates_truncated":   false,
  "candidate_set":          "exhaustive",
  "resolved_calendar_type": "work",
  "warnings":              [],
  "pending_notifications": []
}

Errors

Code	Description
`400`	Validation failed — body is malformed or missing required fields.
`401`	Missing or invalid API key. Send the raw key as a Bearer token in the Authorization header.
`403`	Agent does not hold the permission scope required for this call (e.g. preempt on a higher-priority class).
`404`	Calendar owner or booking id not found.
`409`	Conflict — the requested slot was already committed at higher priority. Inspect alternatives[] in the response body.
`422`	Validation error — the request body is structurally valid but semantically rejected. Common causes: earliest_start is in the past (PAST_TIME), the window is shorter than the requested duration (WINDOW_TOO_NARROW), the chosen slot is outside the hold window (SLOT_OUTSIDE_HOLD), or an idempotency key was reused with a different body (IDEMPOTENCY_CONFLICT). The error code field names the specific cause.