Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 10 Complete, well-documented, and agent-ready

Salesforce Field Service APIThe Salesforce Field Service API provides access to Field Service Lightning data and operations including w...91.0 Salesforce Scheduling APIThe Scheduling API from Salesforce — 1 operation(s) for scheduling.91.0 Postman Monitors APIThe Monitors API runs Postman Collections on a recurring schedule to validate API health, performance, and ...79.6 Automation Studio APIAPI for initiating and managing marketing automations, including file upload, download, decryption, compres...77.3 Treasure Workflow APITreasure Workflow — the Digdag-based orchestration API. 43 operations over projects, workflow definitions, ...76.2 YARN Queue Manager APIYARN Queue Manager exposes a REST API for managing capacity scheduler queues, ACLs, and resource allocation...70.3 eClinicalWorks FHIR APIProvider-centric, backend and bulk FHIR R4 APIs for integrating with the eClinicalWorks EHR. Supports SMART...69.7 healow Patient-Centric FHIR APIPatient-facing FHIR R4 APIs accessible through the healow developer portal, letting third-party application...69.7 athenaOne APIsThe athenaOne proprietary REST API suite provides over 800 endpoints covering patient management, schedulin...69.1 Buffer APIGraphQL API for scheduling and publishing posts, managing social media channels, handling content ideas and...67.0

Strong 18 Solid coverage with minor gaps

Chili Piper MCP ServerOfficial hosted remote MCP server for Chili Piper, served over streamable HTTP at https://fire.chilipiper.c...66.0 Healthie GraphQL APIThe Healthie GraphQL API is the single contract behind the entire Healthie platform — the same API that pow...65.8 Zoho BookingsThe Zoho Bookings API allows developers to integrate online scheduling and appointment management with thir...65.1 Zoho CalendarThe Zoho Calendar API provides REST endpoints to customize calendar features, allowing you to manage calend...65.1 Modal Cron and Scheduled FunctionsRun functions on a recurring schedule using modal.Period or modal.Cron passed to @app.function(schedule=......64.5 Microsoft Bookings APIManage customer bookings, appointment scheduling, business services, and staff information for enterprise a...61.9 Smartlead Campaigns APIREST endpoints to create, list, fetch, update, schedule, pause, resume, and delete email campaigns, plus ma...61.0 Google Calendar APICreate and manage calendars, events, and attendees.60.5 ThingSpeak TimeControl APICron-style scheduler that fires ThingHTTP, TalkBack, or MATLAB Analysis actions at a chosen time, recurring...59.2 Tebra Appointments APISOAP operations for scheduling - GetAppointment, GetAppointments, CreateAppointment, UpdateAppointment, Upd...58.9 Weave Scheduling APIAppointments, appointment types, schedules, and calendar events.58.6 Microsoft Exchange Scheduling APIOperations for scheduling and free/busy information58.3 Jane Appointments APIRetrieve and list one-on-one appointment bookings for a clinic, with filtering by patient, staff member, lo...58.2 Jane Practice and Scheduling APIRead clinic reference and scheduling data — locations, staff members, disciplines, treatments, and company ...58.2 Assembled Activities APICreate, list, and delete activities — the scheduled shifts, breaks, time off, training, and meetings that m...57.5 EMS Platform ServicesRESTful API layer for Accruent EMS space and event scheduling, documented as a Platform as a Service surfac...56.0 Zoom Calendar APIThe Zoom Calendar API enables developers to manage calendar events, automate scheduling, sync across platfo...55.8 Zoom Workforce Management APIThe Zoom Workforce Management API enables developers to build applications that manage workforce scheduling...55.8

Developing 38 Usable, with meaningful gaps to close

Everbridge Scheduling APIScheduling operations53.3 Skedulo Scheduling APIThe scheduling API from Skedulo — 7 operation(s) for scheduling.53.2 SAP BI Tools Scheduling APISchedule reports and documents for execution with configurable parameters, recurrence, and destination opti...52.2 SAP BusinessObjects BI Platform RESTful Web ServicesREST API for SAP BusinessObjects BI Platform for managing documents, users, and scheduling reports.52.2 Enterprise Manager Blackout Management APIREST API for managing blackouts (maintenance windows) in Enterprise Manager, including creating, editing, d...52.1 Enterprise Manager Job System APIAPI for creating, managing, and monitoring Enterprise Manager jobs and tasks including scheduling, executio...52.1 AdvancedMD Connect APIsAdvancedMD's proprietary partner API family, published in both XML-RPC and REST formats, which lets develop...51.0 Sanity Scheduling APIThe Sanity Scheduling API enables scheduling content for future publication or unpublication at specific ti...50.8 OpenShift Schedule and Quota APIAPI for managing scheduling and quota resources including ResourceQuota, LimitRange, PriorityClass, and Clu...49.5 IFS Field Service Management APIIFS Field Service Management APIs enable work order management, scheduling optimization, technician dispatc...49.4 Semble Scheduling & Bookings APIGraphQL surface for appointments and scheduling — bookings, bookings-by-id, availabilities, availability ru...49.4 Booksy Public APIThe Booksy Public API is a partner-facing REST API for managing Booksy businesses and their booking data. I...49.1 PJM InSchedule Browserless APIThe browserless REST interface to PJM InSchedule, the eTool market participants use to submit and retrieve ...49.1 MISO CROW API (Outage Scheduling)The outage-scheduling interface, built on the CROW product, documented in a PDF reference plus a MISO-speci...48.7 Dynamics 365 Field Service APIAPI for managing field service operations including work orders, scheduling, resource availability, and wor...48.2 Nittei Scheduler APINittei is MeetsMore's self-hosted calendar and scheduler server, written in Rust (Axum + SQLx + PostgreSQL)...47.8 Alteryx Server APIREST API for managing workflows, schedules, and jobs on Alteryx Server. Provides Subscription, User V2, Adm...47.7 Loomly Platform API (partner-gated)Loomly operates an OAuth 2.0 protected platform API that backs its Zapier app — 12 triggers (new post, post...47.5 DexCare REST APIRESTful service for accessing business information and performing actions against DexCare-managed healthcar...47.3 IESO Outage Coordination and Scheduling System (OCSS) Web ServiceA web service, specified in SPEC-113, for submitting and managing transmission and generation outage reques...46.8 Workday Integration Scheduling APIThe Scheduling API from Workday Integration — 2 operation(s) for scheduling.46.7 Indeed Interview APIA GraphQL API for scheduling, updating, retrieving information about, and canceling virtual interview event...46.0 Webex Meetings APIThe Webex Meetings API enables scheduling, updating, deleting, and listing of Webex meetings. Endpoints sup...45.1 Oracle Primavera Analytics APIOracle Primavera Analytics provides reporting and business intelligence APIs for portfolio performance insi...44.9 Oracle Primavera Gateway Integration APIOracle Primavera Gateway provides integration APIs for connecting Primavera P6 with other Oracle and third-...44.9 Oracle Primavera P6 Scheduling APIOracle Primavera P6 provides project scheduling and portfolio management APIs for construction, engineering...44.9 31 OpenAPIThe 31huiyi (31会议) OpenAPI — an OAuth 2.0 bearer-protected REST surface documented in the public developer ...44.0 Koppla APIkoppla advertises an "Offene Schnittstelle / API" (open interface / API) as an included capability of its E...43.9 Paradox Scheduling APIManage interview scheduling, interviewers, settings, rooms, alerts, and history43.6 NationGraph Scheduling APIThe Scheduling API from NationGraph — 3 operation(s) for scheduling.43.4 QlikView Distribution Service API (IQDS)API interface for the QlikView Distribution Service, providing programmatic access to document distribution...41.7 AlayaCare Scheduler APIREST API for accessing and managing visit scheduling data, including visit details, facility information, a...41.5 CMISGo Timetabling (gated)Student and staff timetabling at timetable.reading.ac.uk. Operator is the institution — the host is the uni...41.3 Harver Scheduling APIThe scheduling API from Harver — 2 operation(s) for scheduling.41.3 Calendly Embed APIThe Calendly Embed API allows developers to integrate Calendly scheduling pages directly into their website...40.7 Calendly Webhook APIThe Calendly Webhook API enables developers to receive real-time notifications when scheduling events occur...40.7 Veradigm Unity APIThe Veradigm Unity API exposes clinical, scheduling, demographic, and practice management functions across ...40.5 75F Special Schedules APIA v2 REST API for exception-based ("special") schedules applied at building or zone level — create, update ...39.9

Thin 30 Limited public surface area

Celery Beat APICelery Beat is the scheduler for periodic tasks, supporting crontab-style schedules, interval schedules, an...39.1 Crunchtime Inventory & Labor APIThe Crunchtime Inventory & Labor API is a REST/JSON web-services API for integrating restaurant back-office...38.6 Fountain Scheduling APIManage interview / calendar slots and bookings.38.1 Fountain Worker APIPost-hire REST API covering worker profiles (activation and deactivation), employment records, document sub...38.1 TimeEdit Scheduling TenantChalmers' timetable and room-booking layer is a TimeEdit tenancy, public at cloud.timeedit.net/chalmers/web...38.1 Capella Space Tasking APIThe Capella Tasking API lets customers submit imagery tasking requests against the Capella SAR constellatio...37.9 Cal.com REST API v2REST API providing full programmatic control over Cal.com resources including calendars, event types, booki...36.9 Lever Interviews APIRead interview events, panels, and schedules associated with an opportunity, including interviewer assignme...36.8 Planday APIPlanday's REST API secured by OAuth2 bearer tokens, separated into domains (HR, Absence, Pay, Payroll, Port...36.6 Jifflenow REST APIThe Jifflenow REST API exposes the meeting-automation core of Cvent Jifflenow as JSON over HTTPS. Documente...36.2 Workable Events APIRead and create scheduled events (phone screens, interviews) for a candidate, integrated with Workable's ca...35.9 SmartRecruiters Interview APIThe Interview API provides self-scheduling capabilities and interview template management for streamlining ...34.6 ScreenCloud Studio Playlists APIGraphQL operations for building and maintaining playlists - the ordered sequences of content shown on scree...34.3 Apache DolphinScheduler REST APIThe DolphinScheduler REST API enables programmatic management of projects, workflow definitions (DAGs), wor...34.0 EasyCronEasyCron is used to run automated tasks, making API calls on a variety of schedules, using all of the APIs ...33.3 Sesame HR Scheduling APIPlanners, shifts, and schedule templates.33.2 VATSIM Events APIThe Events API from VATSIM — 2 operation(s) for events.32.3 Homebase APIThe Homebase REST API provides programmatic access to employee scheduling, time tracking, payroll synchroni...31.8 UKG Scheduling APIShifts, schedules, and schedule management31.6 Sendible APIREST API for managing social media clients, scheduling posts, monitoring mentions, and accessing analytics ...31.1 Webex Meetings APISchedule, list, update, and cancel Webex meetings; manage participants, recordings, transcripts, and meetin...30.9 Clockify Scheduling APIThe Scheduling API from Clockify — 10 operation(s) for scheduling.30.4 Paylocity Scheduling APIThe Scheduling API from Paylocity — 3 operation(s) for scheduling.29.1 Vetspire Schedule & Appointments APIGraphQL operations over the Schedule domain - list appointments for a location and date range, read provide...29.1 WellSky Personal Care Connect APIFHIR-compliant API for WellSky Personal Care software platform enabling data integration and interoperabili...28.0 Doodle Scheduling API (Deprecated)The Doodle REST API for programmatically creating and managing group polls, booking pages, and meeting sche...27.5 HashiCorp NomadA simple and flexible scheduler and orchestrator to deploy and manage containers and non-containerized appl...27.5 Apache Mesos Scheduler HTTP APIThe Mesos Scheduler HTTP API at /api/v1/scheduler enables framework schedulers to subscribe to resource off...27.2 AAR Aerostrat (Aerros)Aerostrat is AAR's maintenance planning software subsidiary, acquired in 2025 and run under Trax. Its flags...26.8 TP Timetable Web Service (NTNU instance)TP (Timeplan) is the timetable, room-booking and course-activity system NTNU uses, hosted on the shared edu...26.2

Emerging 33 Early or largely undocumented

OptiSigns Schedules APICreate and manage schedules that control when assets and playlists play on which devices across dates, time...25.8 Zcal Scheduling LinksUnlimited shareable scheduling links, meeting polls, and customizable booking pages let invitees self-serve...25.4 UKG Ready REST APIRESTful API for UKG Ready providing programmatic access to employees, HR records, payroll, time and attenda...25.2 Uber Freight Scheduling APIScheduling API implementing the Scheduling Standards Consortium (SSC) Technical Standard for automated dock...24.3 Deputy Public APIREST API for managing employees, schedules, timesheets, locations, leave, tasks, and sales metrics in the D...23.7 Web Summit Attendee PlatformThe Web Summit attendee platform provides conference scheduling, attendee discovery, and networking capabil...23.5 Kyo Attain Platform APIThe Attain platform API is the backend serving the Kyo Care portal (portal.kyocare.com) and the Kyo Care mo...22.6 UKG Pro WFM APIREST API for the UKG Pro Workforce Management product (Dimensions), covering punches, shifts, scheduling, a...22.2 Revel Systems Scheduling APILabor scheduling and timesheet resources.22.0 J.B. Hunt Transport Services Scheduling APIManage pickup and delivery appointments.21.7 Glofox Classes & Events APIScheduled Events - classes, appointments, and facility slots - with capacity and attendance tracking that m...21.2 AutoLeap Appointments APICreate and bulk-update scheduled appointments, plus a separate appointment-requests flow (create requests, ...20.4 Boulevard Admin API - Appointments, Staff & LocationsRead and sync appointment, staff, and location data across a business's calendar - past, current, and futur...19.6 Dentrix Appointments & Scheduling APIRead the schedule and book, reschedule, or cancel appointments. In the Dentrix Developer Program this maps ...19.5 Jake Gaylor MCP ServerHosted MCP server exposing Jake Gaylor's resume, links and website text as resources and tools, structured ...18.4 Gem SchedulingInterview scheduling product that coordinates candidate and interviewer calendars and integrates with CodeS...18.3 Shiftsmart Platform APIThe private REST API backing the Shiftsmart worker and manager applications. Probing confirms a live Feathe...17.9 Fieldpoint REST API (FPDTS)The Fieldpoint Data Transfer Service (FPDTS) is Fieldpoint's open REST API that enables data exchange betwe...17.3 CareRev Platform APIThe private application and partner-integration API behind the CareRev platform. api.carerev.com is a live,...16.9 HireVue Coordinate (Scheduling) APIAutomated interview scheduling and coordination across candidate and interviewer calendars. Supports self-s...16.8 Process Management APISystem calls for process creation, execution, termination, and control.15.8 ConstructionOnline REST APIREST API for the ConstructionOnline platform that lets approved Business and Enterprise customers programma...15.4 Findem Scheduling AgentAgentic worker that coordinates interview scheduling across candidate and interviewer calendars.14.9 SimplePractice Enterprise Scheduling APIPartner-only integration announced by SimplePractice Enterprise (September 2022) that connects to overlappi...14.8 Denticon Appointments APIRead appointments on the schedule, query open scheduling availability, and book, confirm, reschedule, or ca...14.1 FieldEdge Dispatch & Scheduling APIRead and manage appointments on the dispatch board - assigning jobs to technicians and viewing scheduled wo...14.0 Omnitracs Web Services (Roadnet Platform)Integration web services for the Omnitracs Roadnet routing and dispatch platform (route planning and optimi...13.8 ShiftMed Workforce APIShiftMed markets an API that lets a hospital, health system or post-acute facility tap its network of crede...13.4 Moodle Task APIExecutes background jobs on a schedule or as one-off operations, allowing plugins to defer long-running wor...13.2 Solv Booking Widget APIInteroperable API that powers a custom, white-labeled digital patient-booking experience embedded on a heal...12.4 Karmada Multi-Cluster APIKarmada extends the Kubernetes API with custom resources for multi-cluster management including Propagation...12.2 Mend Appointments and Scheduling APILogical grouping for creating and managing appointments, provider availability, patient self-scheduling, re...11.7 KoordinatorKoordinator QoS-based scheduling system for hybrid workloads on Kubernetes with colocation and resource opt...11.6

Minimal 6 Almost no public developer surface

tab32 Schedule APIAccess to the tab32 schedule data object - appointments, availability, and booking - supporting online book...10.8 Phreesia Scheduling & Appointments APIAppointment scheduling, reminders, and contactless mobile/kiosk check-in, driving arrival status back into ...9.2 LEAP Calendar APIModeled calendar/diary and appointment-scheduling surface, evidenced by production Marketplace scheduling i...9.1 Clearwave Scheduling APIOnline and self-service appointment scheduling where every booking, cancellation, and reschedule syncs auto...7.0 Examity Appointments (Scheduling) APICreate, reschedule, and cancel proctoring appointments for a test-taker against a registered exam, and quer...4.3 Clockwise REST APIREST API for the Clockwise AI calendar optimization platform, providing programmatic access to focus time m...0.0

Companies reaching this through an API (77)

These companies publish an API, specification or operation carrying “Scheduling” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

75F AAR Accruent Alteryx APIs.io Engineering Platform athenahealth AutoLeap Capella Space Celery Chalmers University of Technology Cisco Collaboration Hybrid Solutions Cisco Webex Meetings Clockify Cloudera Crunchtime Denticon Dentrix eClinicalWorks Everbridge Examity FieldEdge Findem Fountain Gem Glofox Google Workspace Harver HashiCorp IESO IFS Indeed J.B. Hunt Transport Services LEAP Lever Microsoft Dynamics 365 Microsoft Exchange Microsoft Office 365 MISO Modal Moodle NationGraph Norwegian University of Science and Technology Omnitracs OptiSigns Oracle Enterprise Manager Paradox Paylocity PJM Interconnection Postman QlikView

Show all 77 companies ↓

Score breakdown

Frequency

70.6

log-scaled weighted occurrences

Breadth

6.2

spread across providers

Quality lift

36.2

mean composite of providers using it

Cohesion

11.9

strength of nearest seed neighbor

Where this tag sits

239 providers carry this tag directly, and 279 counting the 18 narrower tags below — 40 more to reach.

Appointment Scheduling 13 providers Employee Scheduling 8 providers Shift Planning 3 providers Job Scheduling 4 providers Cron Jobs 3 providers Content Scheduling 4 providers Social Media Scheduling 0 providers Appointments 35 providers Appointment Booking 11 providers Interview Scheduling 4 providers Class Scheduling 3 providers Workforce Scheduling 0 providers Labor Scheduling 0 providers Shift Management 0 providers On-Call Scheduling 0 providers Room Scheduling 0 providers Service Scheduling 0 providers Scheduled Jobs 2 providers

Where this tag comes from

Provider tag239

Api tag135

Openapi tag15

Openapi op tag48

Cohort brief

Auto-generated

The 229 providers in the APIs.io catalog tagged Scheduling, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

229

all scored

Mean Kin Score

30.2

+7.3 vs catalog 22.9

Mean Agent Readiness

16.6

+4.7 vs catalog 11.9

Spread

0–93.2

median 29.1 · σ 18.1

How the 229 split by band

Exemplar 4Strong 19Developing 52Thin 54Emerging 63Minimal 37

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Access Clarity	38.4	26.5	+11.9	229
Contract Quality	25.9	17.6	+8.3	229
Operational Transparency	21.2	13.7	+7.5	229
Developer Ergonomics	27.3	23.2	+4.1	229
Discoverability	62.1	58.1	+4	229
Contract Governance	6.9	6.3	+0.6	229

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	14%	14%	0
MCP server (first-party)	13%	12%	+1
Agent Skills	0%	0%	0
OAuth scopes	19%	11%	+8
Security	98%	98%	0
Arazzo workflows	3%	2%	+1
Governance rules	17%	14%	+3

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

1 Nylas 93.2
2 Elation Health 77.5
3 ZnanyLekarz 68.1
4 Buffer 67
5 Postiz 66.4
6 Chili Piper 66
7 Healthie 65.8
8 Microsoft Azure Batch 63.7
9 Mindbody 63.4
10 Hootsuite 63.3

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

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https://apis.io/mcp

Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

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This tag

curl "https://apis.io/api/v1/tags/scheduling"

All tags

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As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/scheduling"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/scheduling/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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Scheduling

Providers using this tag (239)

APIs with this tag (135)