Applications › Appointment Booking & Scheduling

Appointment Booking & Scheduling

What 7 leading Appointment Booking & Scheduling apps are built on: the providers each one ships in its code or lists as an integration, grouped by layer and capability, and joined to the catalog.

7 reference apps 130 providers 84 observed in code 46 declared only 100.0% in the catalog 55.0 mean Kin Score 55 with a verified MCP server

How to read this. observed the integration ships in the app (SDK in a dependency file, source code, or an Android build analysis). declared the app names the integration itself (README, integrations page, store listing). Every row links the source it was read from. Providers not yet in the catalog are marked queued for profiling. Blueprint by API Evangelist, CC BY-NC-SA 4.0. Capabilities marked Turbo EA come from Turbo EA Capabilities by Vincent Verdet, CC BY 4.0 (notice); those marked API Evangelist extension are CC BY-NC-SA 4.0. Android build analyses: Exodus Privacy (reports.exodus-privacy.eu.org).

domain layer 18 capabilities

Video Calling 11 providers · AE-150.60 · API Evangelist extension

Video Calling capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Zoom	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly, Rallly	56.2 strong	55.2 agent-ready	verified
Webex	observed [1] [2] [3]	Cal.com, Calendly, Rallly	64.1 strong	61.1 agent-ready	verified
Google Meet	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly	27.7 thin	17.2 agent-aware	none found
Microsoft Teams	observed [1] [2]	Cal.com, Calendly	56.2 strong	34.2 agent-ready	none found
GoTo Meeting	declared [1] [2]	Acuity Scheduling, Calendly	4.8 minimal	0.0 human-only	none found
8x8 Meet	observed [1]	Cal.com	71.3 exemplar	41.0 agent-native	none found
Whereby	observed [1]	Cal.com	52.2 developing	20.7 agent-aware	none found
Riverside	observed [1]	Cal.com	48.8 developing	19.0 agent-aware	verified
Daily (Cal Video)	observed [1]	Cal.com	47.7 developing	24.4 agent-aware	none found
ON24	declared [1]	Calendly	42.0 developing	24.4 agent-aware	none found
Loom	declared [1]	Calendly	19.7 emerging	0.6 human-only	none found

Customer Relationship Management 11 providers · BC-420 · Turbo EA

Customer Relationship Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Salesforce	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly	90.4 exemplar	54.7 agent-ready	verified
HubSpot	observed [1] [2]	Cal.com, Calendly	94.8 exemplar	52.7 agent-ready	verified
Zoho CRM	observed [1] [2]	Acuity Scheduling, Cal.com	86.0 exemplar	44.2 agent-ready	none found
Close	observed [1] [2]	Cal.com, Calendly	75.3 exemplar	60.0 agent-ready	verified
Pipedrive	observed [1]	Cal.com	54.6 strong	29.3 agent-ready	none found
Attio	observed [1]	Cal.com	20.3 emerging	45.3 agent-ready	verified
Infusionsoft (Keap)	declared [1]	Acuity Scheduling	68.1 exemplar	45.4 agent-ready	none found
Nutshell	declared [1]	Calendly	62.3 strong	52.2 agent-ready	none found
Microsoft Dynamics	declared [1]	Calendly	49.4 developing	28.1 agent-aware	verified
Daylite	declared [1]	Acuity Scheduling	47.7 developing	21.8 agent-aware	—
Streak	declared [1]	Calendly	31.4 thin	27.5 agent-aware	none found

Mailbox & Calendar Sync 6 providers · AE-150.80 · API Evangelist extension

Mailbox & Calendar Sync capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google Calendar	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly, Easy!Appointments, Rallly	48.8 developing	20.7 agent-aware	verified
Outlook / Office 365 Calendar	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly	65.9 strong	48.6 agent-ready	verified
Apple Calendar	observed [1] [2]	Acuity Scheduling, Cal.com	55.2 strong	31.9 agent-ready	none found
Zoho Calendar	observed [1]	Cal.com	63.5 strong	33.0 agent-ready	verified
Exchange Calendar	observed [1]	Cal.com	58.7 strong	30.5 agent-ready	none found
Google Contacts	declared [1]	Acuity Scheduling	45.6 developing	24.6 agent-aware	verified

Email Marketing Sends 6 providers · AE-150.10.20 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Kit	declared [1] [2]	Acuity Scheduling, Calendly	79.7 exemplar	64.4 agent-ready	none found
Mailchimp	declared [1] [2]	Acuity Scheduling, Calendly	78.8 exemplar	42.3 agent-ready	none found
ActiveCampaign	declared [1] [2]	Acuity Scheduling, Calendly	78.2 exemplar	53.7 agent-ready	documented
AWeber	declared [1] [2]	Acuity Scheduling, Calendly	70.6 exemplar	39.6 agent-ready	verified
Constant Contact	declared [1]	Acuity Scheduling	69.6 exemplar	32.1 agent-ready	none found
Drip	declared [1]	Acuity Scheduling	61.3 strong	48.6 agent-ready	none found

Digital Marketing Management 5 providers · BC-400.60 · Turbo EA

Digital Marketing Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Meta Pixel	observed [1] [2] [3]	Acuity Scheduling, Booksy Biz, Cal.com, Calendly	42.7 developing	28.2 agent-aware	none found
Dub	observed [1]	Cal.com	59.0 strong	23.0 agent-aware	verified
LinkedIn Ads	declared [1]	Calendly	74.8 exemplar	44.4 agent-ready	none found
TikTok	declared [1]	Calendly	41.0 developing	19.6 agent-aware	none found
ReferralCandy	declared [1]	Acuity Scheduling	34.8 thin	15.8 agent-aware	none found

Online Forms & Survey Collection 5 providers · AE-921 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Formbricks	observed [1]	Cal.com	32.4 thin	19.0 agent-aware	none found
Wufoo	declared [1]	Acuity Scheduling	56.7 strong	22.4 agent-aware	none found
Google Forms	declared [1]	Calendly	45.9 developing	35.2 agent-ready	none found
Jotform	declared [1]	Calendly	37.8 thin	20.7 agent-aware	verified
Typeform	declared [1]	Calendly	37.6 thin	43.5 agent-ready	verified

WhatsApp & OTT Messaging 4 providers · AE-150.20.20 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
WhatsApp	observed [1]	Cal.com	55.4 strong	29.6 agent-ready	none found
Discord	observed [1]	Cal.com	46.4 developing	30.6 agent-ready	none found
Signal	observed [1]	Cal.com	41.4 developing	20.7 agent-aware	none found
Telegram	observed [1]	Cal.com	38.0 thin	19.6 agent-aware	none found

Content Management 3 providers · AE-170.70 · API Evangelist extension

Content Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
WordPress	observed [1]	Cal.com	46.0 developing	31.4 agent-ready	verified
Framer	observed [1]	Cal.com	19.1 emerging	0.6 human-only	verified
Squarespace	declared [1]	Acuity Scheduling	69.9 exemplar	49.5 agent-native	none found

Talent Acquisition Management 3 providers · BC-300.10 · Turbo EA

Talent Acquisition Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Zoho Recruit	declared [1]	Calendly	63.5 strong	33.0 agent-ready	verified
Greenhouse	declared [1]	Calendly	34.7 thin	45.6 agent-ready	none found
JazzHR	declared [1]	Calendly	26.7 thin	0.0 human-only	none found

Corporate & Digital Gifting 2 providers · AE-140.50.20 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Reachdesk	declared [1]	Calendly	58.3 strong	56.3 agent-ready	verified
Sendoso	declared [1]	Calendly	58.1 strong	45.8 agent-native	none found

Data Enrichment 2 providers · AE-230.30.10 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
ZoomInfo	declared [1]	Calendly	86.6 exemplar	64.3 agent-ready	verified
Clearbit	declared [1]	Calendly	57.9 strong	25.2 agent-aware	none found

Invoice Generation Management 2 providers · BC-4330.50 · Turbo EA

Invoice Generation Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
QuickBooks	declared [1]	Acuity Scheduling	34.2 thin	19.7 agent-aware	verified
FreshBooks	declared [1]	Acuity Scheduling	31.2 thin	20.1 agent-aware	none found

Marketing Operations Management 2 providers · BC-400.50 · Turbo EA

Marketing Operations Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Pardot	declared [1]	Calendly	60.8 strong	35.4 agent-ready	none found
Marketo	declared [1]	Calendly	56.4 strong	31.1 agent-ready	none found

Meeting Notes & Conversation Intelligence 2 providers · AE-110.30.40 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Demodesk	observed [1]	Cal.com	59.5 strong	56.2 agent-ready	documented
Gong	declared [1]	Calendly	65.5 strong	55.5 agent-ready	none found

Programmable Voice 2 providers · AE-150.50.10 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Dialpad	observed [1]	Cal.com	29.1 thin	23.4 agent-aware	none found
CallRail	declared [1]	Calendly	52.3 developing	32.8 agent-ready	none found

Reviews & Social Proof 2 providers · AE-140.60 · API Evangelist extension

Reviews & Social Proof capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Yelp	declared [1]	Calendly	52.0 developing	29.2 agent-ready	verified
Podium	declared [1]	Calendly	51.3 developing	40.9 agent-native	none found

Scheduling & Appointment Management 2 providers · BC-2800.10 · Turbo EA

Scheduling & Appointment Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Reserve with Google	declared [1]	Acuity Scheduling	70.1 exemplar	45.4 agent-ready	verified
ClassPass	declared [1]	Acuity Scheduling	12.1 emerging	0.0 human-only	none found

Online Courses 1 providers · AE-220.10 · API Evangelist extension

Online Courses capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Kajabi	declared [1]	Calendly	42.1 developing	53.0 agent-ready	documented

common layer 21 capabilities

Product Usage Analytics 10 providers · BC-4280.30 · Turbo EA

Product Usage Analytics capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google Analytics 4	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly, LibreBooking	72.1 exemplar	41.8 agent-ready	verified
Google Firebase Analytics	observed [1] [2] [3]	Acuity Scheduling, Booksy Biz, Calendly	50.3 developing	14.2 agent-aware	verified
PostHog	observed [1] [2]	Cal.com, Rallly	57.7 strong	57.3 agent-ready	verified
Segment	observed [1] [2]	Booksy Biz, Calendly	43.8 developing	26.8 agent-aware	none found
Umami	observed [1]	Cal.com	74.3 exemplar	38.4 agent-ready	none found
Matomo	observed [1]	Cal.com	70.6 exemplar	37.4 agent-ready	verified
Amplitude	observed [1]	Acuity Scheduling	63.5 strong	56.7 agent-ready	verified
Plausible	observed [1]	Cal.com	61.7 strong	23.1 agent-aware	none found
Fathom Analytics	observed [1]	Cal.com	49.0 developing	25.4 agent-aware	none found
Pendo	declared [1]	Calendly	54.8 strong	35.4 agent-ready	verified

Workflow Automation & iPaaS 9 providers · AE-910 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Zapier	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly	73.7 exemplar	66.2 agent-ready	verified
Pipedream	observed [1] [2]	Cal.com, Calendly	59.5 strong	31.3 agent-ready	verified
Make	observed [1] [2]	Cal.com, Calendly	41.4 developing	43.9 agent-ready	verified
n8n	observed [1]	Cal.com	69.7 exemplar	36.4 agent-ready	verified
Raycast	observed [1]	Cal.com	26.8 thin	13.6 agent-aware	none found
Workato	declared [1]	Calendly	70.4 exemplar	52.2 agent-ready	verified
Zoho Flow	declared [1]	Acuity Scheduling	63.5 strong	33.0 agent-ready	verified
Google Sheets	declared [1]	Acuity Scheduling	57.0 strong	33.0 agent-ready	none found
Power Automate	declared [1]	Calendly	57.0 strong	34.2 agent-ready	none found

Payment Processing Management 4 providers · BC-1340.20 · Turbo EA

Payment Processing Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Stripe	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly, LibreBooking, Rallly	82.7 exemplar	58.5 agent-native	verified
PayPal	observed [1] [2] [3]	Acuity Scheduling, Cal.com, Calendly, LibreBooking	52.9 developing	37.1 agent-ready	verified
HitPay	observed [1]	Cal.com	63.2 strong	41.2 agent-ready	none found
Square	declared [1]	Acuity Scheduling	79.7 exemplar	62.8 agent-native	verified

Observability Management 5 providers · BC-4220.20 · Turbo EA

Observability Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Sentry	observed [1] [2]	Cal.com, Rallly	80.6 exemplar	50.2 agent-ready	verified
Google Crashlytics	observed [1] [2]	Booksy Biz, Calendly	50.3 developing	14.2 agent-aware	verified
Bugsnag	observed [1]	Acuity Scheduling	78.5 exemplar	53.1 agent-ready	verified
Checkly	observed [1]	Cal.com	74.1 exemplar	59.5 agent-ready	documented
Instabug	observed [1]	Acuity Scheduling	45.6 developing	29.6 agent-ready	documented

Social & Federated Login 3 providers · AE-160.10.30 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google sign-in	observed [1] [2] [3]	Cal.com, LibreBooking, Rallly	36.8 thin	19.6 agent-aware	none found
Microsoft sign-in	observed [1] [2]	LibreBooking, Rallly	60.0 strong	26.4 agent-aware	none found
Facebook Login	observed [1]	LibreBooking	42.7 developing	28.2 agent-aware	none found

Customer Service Management 4 providers · BC-430 · Turbo EA

Customer Service Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Intercom	observed [1] [2]	Cal.com, Calendly	52.9 developing	31.7 agent-ready	verified
Zendesk	observed [1]	Cal.com	72.8 exemplar	35.0 agent-ready	none found
Help Scout	observed [1]	Cal.com	51.7 developing	25.4 agent-aware	none found
Freshchat	observed [1]	Cal.com	35.7 thin	22.8 agent-aware	none found

Internal Communications Management 3 providers · BC-850.10 · Turbo EA

Internal Communications Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Slack	observed [1] [2]	Calendly, LibreBooking	73.2 exemplar	38.7 agent-ready	verified
Basecamp	observed [1]	Cal.com	49.5 developing	20.0 agent-aware	verified
Linear	observed [1]	Cal.com	38.1 thin	35.5 agent-ready	verified

Bot Protection & CAPTCHA 2 providers · AE-160.70 · API Evangelist extension

Bot Protection & CAPTCHA capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Cloudflare Turnstile	observed [1] [2]	Cal.com, Rallly	27.3 thin	23.1 agent-aware	verified
Google reCAPTCHA	observed [1]	LibreBooking	48.1 developing	24.6 agent-aware	none found

Mobile Attribution & Deep Linking 3 providers · AE-902 · API Evangelist extension

Mobile Attribution & Deep Linking capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
AppsFlyer	observed [1]	Booksy Biz	69.8 exemplar	46.4 agent-ready	verified
Branch	observed [1]	Booksy Biz	32.0 thin	24.7 agent-aware	none found
Tune	observed [1]	Acuity Scheduling	12.9 emerging	17.3 agent-aware	—

Transactional Email 3 providers · AE-150.10.10 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
SendGrid	observed [1]	Cal.com	87.5 exemplar	40.1 agent-ready	none found
Amazon SES	observed [1]	Rallly	80.6 exemplar	39.4 agent-ready	none found
Resend	observed [1]	Cal.com	58.9 strong	49.4 agent-ready	verified

Managed Operational Databases 1 providers · AE-915 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Upstash	observed [1] [2]	Cal.com, Rallly	36.3 thin	41.8 agent-ready	verified

Crypto Payment Acceptance 1 providers · AE-240.70.20 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
BTCPay Server	observed [1]	Cal.com	36.2 thin	29.2 agent-ready	none found

Domain Registration & Managed DNS 1 providers · AE-927 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Cloudflare	observed [1]	Cal.com	82.1 exemplar	69.6 agent-native	verified

Edge Functions & Edge Config Stores 1 providers · AE-932 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Vercel	observed [1]	Cal.com	63.8 strong	45.2 agent-ready	verified

Hosted LLM Inference 1 providers · AE-110.10.10 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
OpenAI	observed [1]	Rallly	83.0 exemplar	58.4 agent-native	verified

IT Job Scheduling and Batch Operations 1 providers · BC-600.40.20 · Turbo EA

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Trigger.dev	observed [1]	Cal.com	58.6 strong	27.9 agent-aware	verified

In-App Ad Monetisation 1 providers · AE-903 · API Evangelist extension

In-App Ad Monetisation capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google AdMob	observed [1]	Acuity Scheduling	61.5 strong	34.0 agent-ready	none found

SMS 1 providers · AE-150.20.10 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Twilio	observed [1]	Cal.com	93.2 exemplar	56.4 agent-native	verified

SaaS Platform Operations Management 1 providers · BC-4220 · Turbo EA

SaaS Platform Operations Management capability

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Unkey	observed [1]	Cal.com	47.0 developing	27.7 agent-aware	none found

Serverless Functions 1 providers · AE-925 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Vercel	observed [1]	Rallly	63.8 strong	45.2 agent-ready	verified

Tag Management 1 providers · AE-911 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Google Tag Manager	observed [1]	Cal.com	63.6 strong	38.2 agent-ready	none found

agent layer 2 capabilities

Voice Agents 6 providers · AE-100.70.20 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Chatbase	observed [1] [2]	Cal.com, Calendly	36.6 thin	20.7 agent-aware	none found
ElevenLabs	observed [1]	Cal.com	82.0 exemplar	56.3 agent-ready	verified
Synthflow	observed [1]	Cal.com	59.7 strong	54.9 agent-ready	verified
Lindy	observed [1]	Cal.com	58.8 strong	28.1 agent-aware	none found
Bolna	observed [1]	Cal.com	57.4 strong	53.6 agent-ready	verified
Retell AI	observed [1]	Cal.com	38.5 thin	32.3 agent-ready	documented

Meeting Notes & Conversation Intelligence 1 providers · AE-110.30.40 · API Evangelist extension

Provider	Evidence	Apps	Kin Score	Agent readiness	MCP
Granola	observed [1]	Cal.com	29.9 thin	54.8 agent-ready	documented

Reference apps

Cal.com self-hosted

https://github.com/calcom/cal.com

71 observed · 0 declared

observed ships the 8x8 Meet SDK or integration code source
observed ships the Apple Calendar SDK or integration code source
observed ships the Attio SDK or integration code source
observed ships the Basecamp SDK or integration code source
observed ships the Bolna SDK or integration code source
observed ships the BTCPay Server SDK or integration code source
observed ships the Chatbase SDK or integration code source
observed ships the Checkly SDK or integration code source
observed ships the Close SDK or integration code source
observed ships the Cloudflare SDK or integration code source
observed ships the Cloudflare Turnstile SDK or integration code source
observed ships the Daily (Cal Video) SDK or integration code source
observed ships the Demodesk SDK or integration code source
observed ships the Dialpad SDK or integration code source
observed ships the Discord SDK or integration code source
observed ships the Dub SDK or integration code source
observed ships the ElevenLabs SDK or integration code source
observed ships the Exchange Calendar SDK or integration code source
observed ships the Fathom Analytics SDK or integration code source
observed ships the Formbricks SDK or integration code source
observed ships the Framer SDK or integration code source
observed ships the Freshchat SDK or integration code source
observed ships the Google Analytics 4 SDK or integration code source
observed ships the Google Calendar SDK or integration code source
observed ships the Google Meet SDK or integration code source
observed ships the Google sign-in SDK or integration code source
observed ships the Google Tag Manager SDK or integration code source
observed ships the Granola SDK or integration code source
observed ships the Help Scout SDK or integration code source
observed ships the HitPay SDK or integration code source
observed ships the HubSpot SDK or integration code source
observed ships the Intercom SDK or integration code source
observed ships the Lindy SDK or integration code source
observed ships the Linear SDK or integration code source
observed ships the Make SDK or integration code source
observed ships the Matomo SDK or integration code source
observed ships the Meta Pixel SDK or integration code source
observed ships the Microsoft Teams SDK or integration code source
observed ships the n8n SDK or integration code source
observed ships the Outlook / Office 365 Calendar SDK or integration code source
observed ships the PayPal SDK or integration code source
observed ships the Pipedream SDK or integration code source
observed ships the Pipedrive SDK or integration code source
observed ships the Plausible SDK or integration code source
observed ships the PostHog SDK or integration code source
observed ships the Raycast SDK or integration code source
observed ships the Resend SDK or integration code source
observed ships the Retell AI SDK or integration code source
observed ships the Riverside SDK or integration code source
observed ships the Salesforce SDK or integration code source
observed ships the SendGrid SDK or integration code source
observed ships the Sentry SDK or integration code source
observed ships the Signal SDK or integration code source
observed ships the Stripe SDK or integration code source
observed ships the Synthflow SDK or integration code source
observed ships the Telegram SDK or integration code source
observed ships the Trigger.dev SDK or integration code source
observed ships the Twilio SDK or integration code source
observed ships the Umami SDK or integration code source
observed ships the Unkey SDK or integration code source
observed ships the Upstash SDK or integration code source
observed ships the Vercel SDK or integration code source
observed ships the Webex SDK or integration code source
observed ships the WhatsApp SDK or integration code source
observed ships the Whereby SDK or integration code source
observed ships the WordPress SDK or integration code source
observed ships the Zapier SDK or integration code source
observed ships the Zendesk SDK or integration code source
observed ships the Zoho Calendar SDK or integration code source
observed ships the Zoho CRM SDK or integration code source
observed ships the Zoom SDK or integration code source

Read from: dependency manifest, dependency manifest, dependency manifest, dependency manifest, source code, source code

Easy!Appointments self-hosted

https://github.com/alextselegidis/easyappointments

1 observed · 0 declared

observed ships the Google Calendar SDK or integration code source

Read from: dependency manifest, documentation, source code

LibreBooking self-hosted

https://github.com/LibreBooking/librebooking

8 observed · 0 declared

observed ships the Facebook Login SDK or integration code source
observed ships the Google Analytics SDK or integration code source
observed ships the Google reCAPTCHA SDK or integration code source
observed ships the Google sign-in SDK or integration code source
observed ships the Microsoft sign-in SDK or integration code source
observed ships the PayPal SDK or integration code source
observed ships the Slack SDK or integration code source
observed ships the Stripe SDK or integration code source

Read from: dependency manifest, source code, source code, source code

Rallly self-hosted

https://github.com/lukevella/rallly

13 observed · 0 declared

observed ships the Amazon SES SDK or integration code source
observed ships the Cloudflare Turnstile SDK or integration code source
observed ships the Google Calendar SDK or integration code source
observed ships the Google sign-in SDK or integration code source
observed ships the Microsoft sign-in SDK or integration code source
observed ships the OpenAI SDK or integration code source
observed ships the PostHog SDK or integration code source
observed ships the Sentry SDK or integration code source
observed ships the Stripe SDK or integration code source
observed ships the Upstash SDK or integration code source
observed ships the Vercel SDK or integration code source
observed ships the Webex SDK or integration code source
observed ships the Zoom SDK or integration code source

Read from: dependency manifest, dependency manifest, source code, source code

Calendly commercial

https://calendly.com/

3 observed · 51 declared

observed ships the Google Crashlytics SDK or integration code source
observed ships the Google Firebase Analytics SDK or integration code source
observed ships the Segment SDK or integration code source
declared lists ActiveCampaign as an integration source
declared lists AWeber as an integration source
declared lists CallRail as an integration source
declared lists Chatbase as an integration source
declared lists Clearbit as an integration source
declared lists Close as an integration source
declared lists Gong as an integration source
declared lists Google Analytics as an integration source
declared lists Google Calendar as an integration source
declared lists Google Forms as an integration source
declared lists Google Meet as an integration source
declared lists GoTo Meeting as an integration source
declared lists Greenhouse as an integration source
declared lists HubSpot as an integration source
declared lists Intercom as an integration source
declared lists JazzHR as an integration source
declared lists Jotform as an integration source
declared lists Kajabi as an integration source
declared lists Kit as an integration source
declared lists LinkedIn Ads as an integration source
declared lists Loom as an integration source
declared lists Mailchimp as an integration source
declared lists Make as an integration source
declared lists Marketo as an integration source
declared lists Meta Ads / Facebook Pixel as an integration source
declared lists Microsoft Dynamics as an integration source
declared lists Microsoft Teams as an integration source
declared lists Nutshell as an integration source
declared lists ON24 as an integration source
declared lists Outlook / Microsoft 365 as an integration source
declared lists Pardot as an integration source
declared lists PayPal as an integration source
declared lists Pendo as an integration source
declared lists Pipedream as an integration source
declared lists Podium as an integration source
declared lists Power Automate as an integration source
declared lists Reachdesk as an integration source
declared lists Salesforce as an integration source
declared lists Sendoso as an integration source
declared lists Slack as an integration source
declared lists Streak as an integration source
declared lists Stripe as an integration source
declared lists TikTok as an integration source
declared lists Typeform as an integration source
declared lists Webex as an integration source
declared lists Workato as an integration source
declared lists Yelp as an integration source
declared lists Zapier as an integration source
declared lists Zoho Recruit as an integration source
declared lists Zoom as an integration source
declared lists ZoomInfo as an integration source

Read from: Android build analysis (Exodus Privacy, reports.exodus-privacy.eu.org), integrations page

Acuity Scheduling commercial

https://acuityscheduling.com/

6 observed · 32 declared

observed ships the Amplitude SDK or integration code source
observed ships the Bugsnag SDK or integration code source
observed ships the Google AdMob SDK or integration code source
observed ships the Google Firebase Analytics SDK or integration code source
observed ships the Instabug SDK or integration code source
observed ships the Tune SDK or integration code source
declared lists ActiveCampaign as an integration source
declared lists AWeber as an integration source
declared lists ClassPass as an integration source
declared lists Constant Contact as an integration source
declared lists ConvertKit as an integration source
declared lists Daylite as an integration source
declared lists Drip as an integration source
declared lists Facebook Business + Instagram as an integration source
declared lists FreshBooks as an integration source
declared lists Google Analytics as an integration source
declared lists Google Calendar as an integration source
declared lists Google Contacts as an integration source
declared lists Google Hangouts Meet as an integration source
declared lists Google Sheets as an integration source
declared lists GoToMeeting / join.me as an integration source
declared lists iCloud as an integration source
declared lists Infusionsoft (Keap) as an integration source
declared lists Mailchimp as an integration source
declared lists Microsoft Outlook as an integration source
declared lists PayPal as an integration source
declared lists QuickBooks as an integration source
declared lists ReferralCandy as an integration source
declared lists Reserve with Google as an integration source
declared lists Salesforce as an integration source
declared lists Square as an integration source
declared lists Squarespace as an integration source
declared lists Stripe as an integration source
declared lists Wufoo as an integration source
declared lists Zapier as an integration source
declared lists Zoho CRM as an integration source
declared lists Zoho Flow as an integration source
declared lists Zoom as an integration source

Read from: Android build analysis (Exodus Privacy, reports.exodus-privacy.eu.org), integrations page

Booksy Biz commercial

https://booksy.com/biz/

6 observed · 0 declared

observed ships the AppsFlyer SDK or integration code source
observed ships the Branch SDK or integration code source
observed ships the Facebook Analytics / Login / Share SDK or integration code source
observed ships the Google CrashLytics SDK or integration code source
observed ships the Google Firebase Analytics SDK or integration code source
observed ships the Segment SDK or integration code source

Read from: Android build analysis (Exodus Privacy, reports.exodus-privacy.eu.org)

What these apps expose to agents

Calendly: Calendly lists ChatGPT, Claude, Gemini and Grok integrations (Calendly exposed inside AI assistants), plus MindStudio, Questflow and Autohive agent builders declared source
Cal.com: app-store ships AI voice-agent booking apps (Retell AI, Synthflow, ElevenLabs, Bolna, Lindy, Chatbase) and an AI notetaker (Granola); agents book meetings through Cal.com observed source
Rallly: BYO OpenAI key (@ai-sdk/openai) for in-app AI features observed source

Where these apps are listed

apple-app-store: Business
apple-app-store: Productivity
google-play: Business
awesome-selfhosted: Booking and Scheduling
shopify-app-store: Store management
hubspot-marketplace: Sales
zapier: Scheduling & Booking