Apptoto
Apptoto provides automated appointment reminders via SMS, email, and voice messages to reduce no‑shows, streamline scheduling, and improve client satisfaction. Founded in 2010, the platform offers a 14‑day free trial and integrates with calendars, payment systems, and popular apps. It serves businesses of all sizes to grow revenue through reliable communications.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Apptoto the way a machine reads it — 30 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Apptoto scores 51.4/100 (developing), with a separate agent-readiness read of 46/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Why this profile is thin
Documentation is served as HTML pages requiring JavaScript to render markdown, preventing machine‑readable spec discovery.
The documentation is public — a person can read it, but a machine cannot. This one is Apptoto's to change: publishing an OpenAPI (or AsyncAPI for events) at a stable URL would make the same surface consumable by a crawler, a linter, and an AI agent.
What we probed
https://apidocs.apptoto.com/reference→ HTTP 200
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-10-31 · rubric v0.25.0
Put this on your own site. The badge is drawn live from Apptoto's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/apptoto/"
title="Apptoto on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/apptoto.svg"
alt="Apptoto Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/apptoto/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/apptoto/"
title="Apptoto on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/apptoto/card.svg"
alt="Apptoto Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Apptoto
Each block below is one kind of artifact we hold for Apptoto. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 21
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Apptoto Address Books API
The Address Books API from Apptoto — 1 operation(s) for address books.
Apptoto Availability API
The Availability API from Apptoto — 1 operation(s) for availability.
Apptoto Book Now API
The Book Now API from Apptoto — 1 operation(s) for book now.
Apptoto Booking Pages API
The Booking Pages API from Apptoto — 1 operation(s) for booking pages.
Apptoto Bookings API
The Bookings API from Apptoto — 1 operation(s) for bookings.
Apptoto Calendars API
The Calendars API from Apptoto — 1 operation(s) for calendars.
Apptoto Contact API
The Contact API from Apptoto — 1 operation(s) for contact.
Apptoto Contacts API
The Contacts API from Apptoto — 2 operation(s) for contacts.
Apptoto Conversation Messages API
The Conversation Messages API from Apptoto — 1 operation(s) for conversation messages.
Apptoto Conversation Reply API
The Conversation Reply API from Apptoto — 1 operation(s) for conversation reply.
Apptoto Conversation Templates API
The Conversation Templates API from Apptoto — 1 operation(s) for conversation templates.
Apptoto Conversations API
The Conversations API from Apptoto — 1 operation(s) for conversations.
Apptoto Event API
The Event API from Apptoto — 3 operation(s) for event.
Apptoto Events API
The Events API from Apptoto — 1 operation(s) for events.
Apptoto Import API
The Import API from Apptoto — 1 operation(s) for import.
Apptoto Lists API
The Lists API from Apptoto — 1 operation(s) for lists.
Apptoto Participant API
The Participant API from Apptoto — 2 operation(s) for participant.
Apptoto Participants API
The Participants API from Apptoto — 2 operation(s) for participants.
Apptoto Start Conversation API
The Start Conversation API from Apptoto — 1 operation(s) for start conversation.
Apptoto Webhooks API
The Webhooks API from Apptoto — 1 operation(s) for webhooks.
Apptoto User Info API
The User Info API from Apptoto — 1 operation(s) for user info.
Scroll within the panel for all 21 ·
Agent Skills 1
An agent skill packages the how-to for driving these APIs from an assistant — the prompts, the sequence, the guardrails — so the knowledge to use the API travels with it.
Packaged agent skills for driving this provider's APIs from an AI assistant.
apptoto-create-and-tag-contact
AGENT SKILLPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Apptoto Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Apptoto Webhooks
ASYNCAPISpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Apptoto API Rules
SPECTRALSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Apptoto — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Access & Security 3
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/apptoto · machine-readable index on apis.io
This is an independent, third-party profile of Apptoto, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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