Retrieve availability
curl --fail-with-body -X GET 'https://api.talki.it/v1/availability?service_id=45c470b7-592a-42cd-8ce8-5d7a0a497d26&from=2026-10-08&to=2026-10-10&quantity=1' \ -H "Authorization: Bearer $TALKI_API_KEY"from datetime import date
from talki import Talki
talki = Talki()
availability = talki.availability.get( service_id="45c470b7-592a-42cd-8ce8-5d7a0a497d26", from_=date(2026, 10, 8), to=date(2026, 10, 10), quantity=1,)print(availability)import { Talki } from "@hubtec/talki";
const talki = new Talki();
const availability = await talki.availability.get({ service_id: "45c470b7-592a-42cd-8ce8-5d7a0a497d26", from: "2026-10-08", to: "2026-10-10", quantity: 1,});console.log(availability);Return advisory bookable windows for one service and local date range. Requires availability:read. Limited to 600 requests per minute per account (API key) or per installation (OAuth).
Authorizations
Section titled “Authorizations”Parameters
Section titled “ Parameters ”Query Parameters
Section titled “Query Parameters”The service to check. Required. Availability is per service: two services that share a resource can return different windows.
The service to check. Required. Availability is per service: two services that share a resource can return different windows.
First local date to report, YYYY-MM-DD, in the account’s timezone. Inclusive.
First local date to report, YYYY-MM-DD, in the account’s timezone. Inclusive.
Last local date to report, YYYY-MM-DD. Inclusive, so from equal to to asks about one day. At most 62 days per request.
Last local date to report, YYYY-MM-DD. Inclusive, so from equal to to asks about one day. At most 62 days per request.
Party size, for a service that asks for one (asks_quantity on GET /v1/services). Pass the party size you intend to book: the windows depend on it. Ignored, and forced to 1, for a service that does not ask. Outside the service’s min_quantity/max_quantity it is refused with 400 invalid_parameter, as the booking would be.
Party size, for a service that asks for one (asks_quantity on GET /v1/services). Pass the party size you intend to book: the windows depend on it. Ignored, and forced to 1, for a service that does not ask. Outside the service’s min_quantity/max_quantity it is refused with 400 invalid_parameter, as the booking would be.
Header Parameters
Section titled “Header Parameters”Example
2026-10-01Serve this one request at the given dated contract version instead of the credential’s pin. An unsupported value is refused with 400 unsupported_version, never downgraded.
Responses
Section titled “ Responses ”Successful Response
When a service can be booked, over a range of days. Advisory, not a reservation: a window can be taken by a phone call a moment later, so a 409 from POST /v1/appointments after a clean lookup is normal. When the owner’s Google or Outlook calendar is connected, their events are subtracted, so this can be narrower than what a booking would accept, never wider.
object
The service this availability is for.
IANA timezone the date fields are in. The same value GET /v1/account publishes.
The party size this answer was computed for.
One entry per local day in the requested range, in order.
One local calendar day of the requested range. Every day is present, closed and fully booked ones included.
object
The local calendar date in the account’s timezone, YYYY-MM-DD, not a UTC date. An interval shortly after local midnight starts on the previous UTC date.
Bookable windows on this day, earliest first. Empty when none.
A window a booking fits in, not a slot. For a duration service a booking may start anywhere from start_at to end_at minus the service’s duration_minutes; there is no start grid. For a day_range service the window is the stay you asked about: check-in to check-out, present only when that exact stay can be booked.
object
Start of the bookable window, RFC 3339 UTC.
End of the bookable window, RFC 3339 UTC.
True when the business is shut for the whole day — a weekday with no working hours, or a closure the owner entered. Distinct from an open day that happens to be fully booked, where this is false and intervals is empty.
Example
{ "service_id": "45c470b7-592a-42cd-8ce8-5d7a0a497d26", "timezone": "Europe/Rome", "duration_minutes": 30, "quantity": 1, "days": [ { "date": "2026-10-08", "closed": false, "intervals": [ { "start_at": "2026-10-08T07:00:00Z", "end_at": "2026-10-08T11:00:00Z" } ] } ]}Headers
Section titled “Headers”Identifier to include when contacting Talki support.
Example
2026-10-01The dated contract version this response was served at.
A parameter, cursor, body field, or required idempotency key is invalid, or Talki-Version names an unsupported version (unsupported_version).
Every error answer has this shape.
object
The error itself. Branch on code; message is for people.
object
Stable machine code; branch on this, not on message. Known codes: invalid_credentials, insufficient_scope, account_closed, subscription_inactive, plan_upgrade_required, plan_feature_unavailable, forbidden, livemode_required, sandbox_api_key_required, unsupported_version, invalid_parameter, invalid_cursor, method_not_allowed, resource_not_found, conflict, precondition_failed, payload_too_large, export_too_large, idempotency_key_required, idempotency_key_reuse, request_in_progress, request_conflict, rate_limit_exceeded, ip_rate_limited, internal_error, api_error, booking_refused, appointment_cancelled, appointment_not_cancelled, unresolved_request_not_resolved, faq_full, document_not_ready, unsupported_file_type, service_has_upcoming_bookings, resource_is_default, resource_required_by_service, capacity_below_committed, capacity_below_service_requirement, resource_too_small, tag_limit_reached, caller_rule_limit_reached, transcript_not_available, trial_suspended, account_suspended, phone_number_missing, forwarding_number_missing, forwarding_number_invalid, check_in_progress, check_quota_exceeded, checks_busy, check_call_failed, agent_test_session_full, agent_test_unavailable, unknown_scenario, sandbox_not_ready, too_many_keys, key_not_active, key_already_rolled, invalid_registration, client_disabled, client_changed, delivery_in_progress, events_url_unset, events_paused, event_unsubscribed, account_refused, installation_inactive, invalid_client, invalid_request, unauthorized_client, access_denied, invalid_scope, slot_unavailable, capacity_exhausted, service_exclusion, closed_day, in_the_past, outside_hours, service_inactive, location_inactive, service_deleted, no_services_requested, party_too_large, stay_too_short, stay_too_long, stay_dates_invalid. New codes may be added; treat an unknown one by its HTTP status.
Example
{ "error": { "type": "invalid_request", "code": "invalid_parameter", "message": "One or more request values are invalid.", "request_id": "req_7f24a2f8c6b64e699901563a458b5031" }}Headers
Section titled “Headers”Example
req_7f24a2f8c6b64e699901563a458b5031Identifier to include when contacting Talki support.
The credential is missing, malformed, expired, revoked, or unknown.
Every error answer has this shape.
object
The error itself. Branch on code; message is for people.
object
Stable machine code; branch on this, not on message. Known codes: invalid_credentials, insufficient_scope, account_closed, subscription_inactive, plan_upgrade_required, plan_feature_unavailable, forbidden, livemode_required, sandbox_api_key_required, unsupported_version, invalid_parameter, invalid_cursor, method_not_allowed, resource_not_found, conflict, precondition_failed, payload_too_large, export_too_large, idempotency_key_required, idempotency_key_reuse, request_in_progress, request_conflict, rate_limit_exceeded, ip_rate_limited, internal_error, api_error, booking_refused, appointment_cancelled, appointment_not_cancelled, unresolved_request_not_resolved, faq_full, document_not_ready, unsupported_file_type, service_has_upcoming_bookings, resource_is_default, resource_required_by_service, capacity_below_committed, capacity_below_service_requirement, resource_too_small, tag_limit_reached, caller_rule_limit_reached, transcript_not_available, trial_suspended, account_suspended, phone_number_missing, forwarding_number_missing, forwarding_number_invalid, check_in_progress, check_quota_exceeded, checks_busy, check_call_failed, agent_test_session_full, agent_test_unavailable, unknown_scenario, sandbox_not_ready, too_many_keys, key_not_active, key_already_rolled, invalid_registration, client_disabled, client_changed, delivery_in_progress, events_url_unset, events_paused, event_unsubscribed, account_refused, installation_inactive, invalid_client, invalid_request, unauthorized_client, access_denied, invalid_scope, slot_unavailable, capacity_exhausted, service_exclusion, closed_day, in_the_past, outside_hours, service_inactive, location_inactive, service_deleted, no_services_requested, party_too_large, stay_too_short, stay_too_long, stay_dates_invalid. New codes may be added; treat an unknown one by its HTTP status.
Example
{ "error": { "type": "authentication_error", "code": "invalid_credentials", "message": "The supplied API credential is invalid.", "request_id": "req_7f24a2f8c6b64e699901563a458b5031" }}Headers
Section titled “Headers”Example
req_7f24a2f8c6b64e699901563a458b5031Identifier to include when contacting Talki support.
The account does not have an active subscription.
Every error answer has this shape.
object
The error itself. Branch on code; message is for people.
object
Stable machine code; branch on this, not on message. Known codes: invalid_credentials, insufficient_scope, account_closed, subscription_inactive, plan_upgrade_required, plan_feature_unavailable, forbidden, livemode_required, sandbox_api_key_required, unsupported_version, invalid_parameter, invalid_cursor, method_not_allowed, resource_not_found, conflict, precondition_failed, payload_too_large, export_too_large, idempotency_key_required, idempotency_key_reuse, request_in_progress, request_conflict, rate_limit_exceeded, ip_rate_limited, internal_error, api_error, booking_refused, appointment_cancelled, appointment_not_cancelled, unresolved_request_not_resolved, faq_full, document_not_ready, unsupported_file_type, service_has_upcoming_bookings, resource_is_default, resource_required_by_service, capacity_below_committed, capacity_below_service_requirement, resource_too_small, tag_limit_reached, caller_rule_limit_reached, transcript_not_available, trial_suspended, account_suspended, phone_number_missing, forwarding_number_missing, forwarding_number_invalid, check_in_progress, check_quota_exceeded, checks_busy, check_call_failed, agent_test_session_full, agent_test_unavailable, unknown_scenario, sandbox_not_ready, too_many_keys, key_not_active, key_already_rolled, invalid_registration, client_disabled, client_changed, delivery_in_progress, events_url_unset, events_paused, event_unsubscribed, account_refused, installation_inactive, invalid_client, invalid_request, unauthorized_client, access_denied, invalid_scope, slot_unavailable, capacity_exhausted, service_exclusion, closed_day, in_the_past, outside_hours, service_inactive, location_inactive, service_deleted, no_services_requested, party_too_large, stay_too_short, stay_too_long, stay_dates_invalid. New codes may be added; treat an unknown one by its HTTP status.
Example
{ "error": { "type": "permission_error", "code": "subscription_inactive", "message": "This account does not have an active subscription.", "request_id": "req_7f24a2f8c6b64e699901563a458b5031" }}Headers
Section titled “Headers”Example
req_7f24a2f8c6b64e699901563a458b5031Identifier to include when contacting Talki support.
The account or credential may not perform this request.
Every error answer has this shape.
object
The error itself. Branch on code; message is for people.
object
Stable machine code; branch on this, not on message. Known codes: invalid_credentials, insufficient_scope, account_closed, subscription_inactive, plan_upgrade_required, plan_feature_unavailable, forbidden, livemode_required, sandbox_api_key_required, unsupported_version, invalid_parameter, invalid_cursor, method_not_allowed, resource_not_found, conflict, precondition_failed, payload_too_large, export_too_large, idempotency_key_required, idempotency_key_reuse, request_in_progress, request_conflict, rate_limit_exceeded, ip_rate_limited, internal_error, api_error, booking_refused, appointment_cancelled, appointment_not_cancelled, unresolved_request_not_resolved, faq_full, document_not_ready, unsupported_file_type, service_has_upcoming_bookings, resource_is_default, resource_required_by_service, capacity_below_committed, capacity_below_service_requirement, resource_too_small, tag_limit_reached, caller_rule_limit_reached, transcript_not_available, trial_suspended, account_suspended, phone_number_missing, forwarding_number_missing, forwarding_number_invalid, check_in_progress, check_quota_exceeded, checks_busy, check_call_failed, agent_test_session_full, agent_test_unavailable, unknown_scenario, sandbox_not_ready, too_many_keys, key_not_active, key_already_rolled, invalid_registration, client_disabled, client_changed, delivery_in_progress, events_url_unset, events_paused, event_unsubscribed, account_refused, installation_inactive, invalid_client, invalid_request, unauthorized_client, access_denied, invalid_scope, slot_unavailable, capacity_exhausted, service_exclusion, closed_day, in_the_past, outside_hours, service_inactive, location_inactive, service_deleted, no_services_requested, party_too_large, stay_too_short, stay_too_long, stay_dates_invalid. New codes may be added; treat an unknown one by its HTTP status.
Example
{ "error": { "type": "permission_error", "code": "insufficient_scope", "message": "This credential does not have the required scope.", "request_id": "req_7f24a2f8c6b64e699901563a458b5031" }}Headers
Section titled “Headers”Example
req_7f24a2f8c6b64e699901563a458b5031Identifier to include when contacting Talki support.
No service with this ID exists in the authenticated account.
Every error answer has this shape.
object
The error itself. Branch on code; message is for people.
object
Stable machine code; branch on this, not on message. Known codes: invalid_credentials, insufficient_scope, account_closed, subscription_inactive, plan_upgrade_required, plan_feature_unavailable, forbidden, livemode_required, sandbox_api_key_required, unsupported_version, invalid_parameter, invalid_cursor, method_not_allowed, resource_not_found, conflict, precondition_failed, payload_too_large, export_too_large, idempotency_key_required, idempotency_key_reuse, request_in_progress, request_conflict, rate_limit_exceeded, ip_rate_limited, internal_error, api_error, booking_refused, appointment_cancelled, appointment_not_cancelled, unresolved_request_not_resolved, faq_full, document_not_ready, unsupported_file_type, service_has_upcoming_bookings, resource_is_default, resource_required_by_service, capacity_below_committed, capacity_below_service_requirement, resource_too_small, tag_limit_reached, caller_rule_limit_reached, transcript_not_available, trial_suspended, account_suspended, phone_number_missing, forwarding_number_missing, forwarding_number_invalid, check_in_progress, check_quota_exceeded, checks_busy, check_call_failed, agent_test_session_full, agent_test_unavailable, unknown_scenario, sandbox_not_ready, too_many_keys, key_not_active, key_already_rolled, invalid_registration, client_disabled, client_changed, delivery_in_progress, events_url_unset, events_paused, event_unsubscribed, account_refused, installation_inactive, invalid_client, invalid_request, unauthorized_client, access_denied, invalid_scope, slot_unavailable, capacity_exhausted, service_exclusion, closed_day, in_the_past, outside_hours, service_inactive, location_inactive, service_deleted, no_services_requested, party_too_large, stay_too_short, stay_too_long, stay_dates_invalid. New codes may be added; treat an unknown one by its HTTP status.
Example
{ "error": { "type": "invalid_request", "code": "resource_not_found", "message": "No such service.", "request_id": "req_7f24a2f8c6b64e699901563a458b5031" }}Headers
Section titled “Headers”Example
req_7f24a2f8c6b64e699901563a458b5031Identifier to include when contacting Talki support.
The account or installation exceeded its request rate (rate_limit_exceeded), or the calling address did (ip_rate_limited).
Every error answer has this shape.
object
The error itself. Branch on code; message is for people.
object
Stable machine code; branch on this, not on message. Known codes: invalid_credentials, insufficient_scope, account_closed, subscription_inactive, plan_upgrade_required, plan_feature_unavailable, forbidden, livemode_required, sandbox_api_key_required, unsupported_version, invalid_parameter, invalid_cursor, method_not_allowed, resource_not_found, conflict, precondition_failed, payload_too_large, export_too_large, idempotency_key_required, idempotency_key_reuse, request_in_progress, request_conflict, rate_limit_exceeded, ip_rate_limited, internal_error, api_error, booking_refused, appointment_cancelled, appointment_not_cancelled, unresolved_request_not_resolved, faq_full, document_not_ready, unsupported_file_type, service_has_upcoming_bookings, resource_is_default, resource_required_by_service, capacity_below_committed, capacity_below_service_requirement, resource_too_small, tag_limit_reached, caller_rule_limit_reached, transcript_not_available, trial_suspended, account_suspended, phone_number_missing, forwarding_number_missing, forwarding_number_invalid, check_in_progress, check_quota_exceeded, checks_busy, check_call_failed, agent_test_session_full, agent_test_unavailable, unknown_scenario, sandbox_not_ready, too_many_keys, key_not_active, key_already_rolled, invalid_registration, client_disabled, client_changed, delivery_in_progress, events_url_unset, events_paused, event_unsubscribed, account_refused, installation_inactive, invalid_client, invalid_request, unauthorized_client, access_denied, invalid_scope, slot_unavailable, capacity_exhausted, service_exclusion, closed_day, in_the_past, outside_hours, service_inactive, location_inactive, service_deleted, no_services_requested, party_too_large, stay_too_short, stay_too_long, stay_dates_invalid. New codes may be added; treat an unknown one by its HTTP status.
Example
{ "error": { "type": "rate_limit_error", "code": "rate_limit_exceeded", "message": "Too many requests. Retry after the interval in Retry-After.", "request_id": "req_7f24a2f8c6b64e699901563a458b5031" }}Headers
Section titled “Headers”Example
req_7f24a2f8c6b64e699901563a458b5031Identifier to include when contacting Talki support.
Seconds to wait before retrying.
The budget of the window that was exceeded. Absent on ip_rate_limited.
Requests left in the window. Absent on ip_rate_limited.
When the window resets, in Unix seconds. Absent on ip_rate_limited.
An unexpected error occurred.
Every error answer has this shape.
object
The error itself. Branch on code; message is for people.
object
Stable machine code; branch on this, not on message. Known codes: invalid_credentials, insufficient_scope, account_closed, subscription_inactive, plan_upgrade_required, plan_feature_unavailable, forbidden, livemode_required, sandbox_api_key_required, unsupported_version, invalid_parameter, invalid_cursor, method_not_allowed, resource_not_found, conflict, precondition_failed, payload_too_large, export_too_large, idempotency_key_required, idempotency_key_reuse, request_in_progress, request_conflict, rate_limit_exceeded, ip_rate_limited, internal_error, api_error, booking_refused, appointment_cancelled, appointment_not_cancelled, unresolved_request_not_resolved, faq_full, document_not_ready, unsupported_file_type, service_has_upcoming_bookings, resource_is_default, resource_required_by_service, capacity_below_committed, capacity_below_service_requirement, resource_too_small, tag_limit_reached, caller_rule_limit_reached, transcript_not_available, trial_suspended, account_suspended, phone_number_missing, forwarding_number_missing, forwarding_number_invalid, check_in_progress, check_quota_exceeded, checks_busy, check_call_failed, agent_test_session_full, agent_test_unavailable, unknown_scenario, sandbox_not_ready, too_many_keys, key_not_active, key_already_rolled, invalid_registration, client_disabled, client_changed, delivery_in_progress, events_url_unset, events_paused, event_unsubscribed, account_refused, installation_inactive, invalid_client, invalid_request, unauthorized_client, access_denied, invalid_scope, slot_unavailable, capacity_exhausted, service_exclusion, closed_day, in_the_past, outside_hours, service_inactive, location_inactive, service_deleted, no_services_requested, party_too_large, stay_too_short, stay_too_long, stay_dates_invalid. New codes may be added; treat an unknown one by its HTTP status.
Example
{ "error": { "type": "api_error", "code": "internal_error", "message": "An unexpected error occurred. Quote the request_id when reporting it.", "request_id": "req_7f24a2f8c6b64e699901563a458b5031" }}Headers
Section titled “Headers”Example
req_7f24a2f8c6b64e699901563a458b5031Identifier to include when contacting Talki support.