Astrocal

Astrocal provides a booking page and scheduling platform for small businesses, offering live booking in minutes, calendar sync, confirmations, reminders, Stripe payments, and a full developer API for integration.

Astrocal publishes 20 API contracts indexed on the APIs.io network, including Activity API, API Keys API, Availability API, and 17 more. Tagged areas include Scheduling, Booking, Small Business, and Payments.

The Astrocal catalog on APIs.io includes 1 Spectral governance ruleset.

Astrocal’s developer surface includes changelog, sandbox, authentication, support, API reference, documentation, getting-started guide, and 25 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

58.6/100 strong Agent 43/100 agent ready Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Scheduling Booking Small Business Payments

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 58.6/100 · strong

Contract Quality 10.3 / 21

Developer Ergonomics 12.1 / 17

Access Clarity 13.0 / 17

Operational Transparency 5.8 / 11

Contract Governance 2.2 / 10

Discoverability 4.9 / 9

Regulatory Posture 4.7 / 15

Agent readiness — 43/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/astrocal-dev/"><img src="https://apis.io/badge/astrocal-dev/card.svg" alt="Astrocal on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agent Skills +5 pts — skills artifact present, graded by who authored it

4 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 48.5 — up to +12.9 composite points
Contract Governance scores 22.0 — up to +9.4 composite points
Operational Transparency scores 52.6 — up to +6.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/astrocal-dev/apis.yml: open an issue on github.com/api-evangelist/astrocal-dev to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 3

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 20

Individual APIs this provider publishes, each with its own machine-readable definition.

Astrocal Activity API

The Activity API from Astrocal — 1 operation(s) for activity.

Astrocal API Keys API

The API Keys API from Astrocal — 2 operation(s) for api keys.

Astrocal Availability API

The Availability API from Astrocal — 2 operation(s) for availability.

Astrocal Booking Pages API

The Booking Pages API from Astrocal — 2 operation(s) for booking pages.

Astrocal Bookings API

The Bookings API from Astrocal — 7 operation(s) for bookings.

Astrocal Branding API

The Branding API from Astrocal — 2 operation(s) for branding.

Astrocal Calendars API

The Calendars API from Astrocal — 7 operation(s) for calendars.

Astrocal Conferencing API

The Conferencing API from Astrocal — 4 operation(s) for conferencing.

Astrocal Event Type Hosts API

The Event Type Hosts API from Astrocal — 2 operation(s) for event type hosts.

Astrocal Event Types API

The Event Types API from Astrocal — 3 operation(s) for event types.

Astrocal Organizations API

The Organizations API from Astrocal — 3 operation(s) for organizations.

Astrocal Payments API

The Payments API from Astrocal — 2 operation(s) for payments.

Astrocal Stripe API

The Stripe API from Astrocal — 5 operation(s) for stripe.

Astrocal Subscription API

The Subscription API from Astrocal — 4 operation(s) for subscription.

Astrocal Support API

The Support API from Astrocal — 1 operation(s) for support.

Astrocal Team API

The Team API from Astrocal — 6 operation(s) for team.

Astrocal Test Data API

The Test Data API from Astrocal — 1 operation(s) for test data.

Astrocal Usage API

The Usage API from Astrocal — 2 operation(s) for usage.

Astrocal Waitlist API

The Waitlist API from Astrocal — 2 operation(s) for waitlist.

Astrocal Webhooks API

The Webhooks API from Astrocal — 6 operation(s) for webhooks.

Scroll for all 20

Pricing Plans 1

Published pricing tiers and plan structures.

Astrocal Dev Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Astrocal Dev Rate Limits

8 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Astrocal API Rules

43 rules · 36 errors 5 warnings 2 info

SPECTRAL

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Astrocal Dev Authentication

2 schemes

SECURITY

Astrocal Dev Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Astrocal Dev Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Astrocal Dev Agentic Access

79 operations · 39 acting · 2 human-in-the-loop

79 operations · 39 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

Sandbox

DeveloperPortal

GettingStarted

SignUp

Login

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

Components

ErrorCatalog

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

ChangeLog

Support

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: astrocal-dev
name: Astrocal
description: Astrocal provides a booking page and scheduling platform for small businesses, offering live booking in minutes,
  calendar sync, confirmations, reminders, Stripe payments, and a full developer API for integration.
url: https://artifacts.apis.io/astrocal-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  probe_state: gated
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-02'
  method: derived
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- Scheduling
- Booking
- Small Business
- Payments
tags_raw:
- Scheduling
- Booking
- API
- Small Business
- Payments
image: https://www.astrocal.dev/opengraph-image?ccd96e5c8f398fae
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/astrocal-dev-agentic-access.yml
- type: RateLimits
  url: rate-limits/astrocal-dev-rate-limits.yml
- type: Plans
  url: plans/astrocal-dev-plans-pricing.yml
- type: Spectral
  url: rules/astrocal-dev-rules.yml
- type: Vocabulary
  url: vocabulary/astrocal-dev-vocabulary.yml
- type: Components
  url: components/astrocal-dev-components.yml
- type: ChangeLog
  url: changelog/astrocal-dev-changelog.yml
- type: Sandbox
  url: sandbox/astrocal-dev-sandbox.yml
- type: Authentication
  url: authentication/astrocal-dev-authentication.yml
- type: ErrorCatalog
  url: errors/astrocal-dev-problem-types.yml
- type: Conformance
  url: conformance/astrocal-dev-conformance.yml
- type: LLMsTxt
  url: llms/astrocal-dev-llms.txt
- type: WellKnown
  url: well-known/astrocal-dev-well-known.yml
- type: Hosts
  url: hosts/astrocal-dev-hosts.yml
- type: Vendors
  url: vendors/astrocal-dev-vendors.yml
- type: SDKs
  url: packages/astrocal-dev-packages.yml
- type: Packages
  url: packages/astrocal-dev-packages.yml
- type: Support
  url: https://www.astrocal.dev/support
- type: ChangeLog
  url: https://www.astrocal.dev/changelog
- type: APIReference
  url: https://www.astrocal.dev/docs/api-reference
- type: DeveloperPortal
  url: https://api.astrocal.dev\
- type: DomainSecurity
  url: security/astrocal-dev-domain-security.yml
- type: Website
  url: https://astrocal.dev/
- type: Documentation
  url: https://www.astrocal.dev/docs
- type: GettingStarted
  url: https://www.astrocal.dev/docs
- type: Blog
  url: https://www.astrocal.dev/articles
- type: GitHubOrganization
  url: https://github.com/astrocal-dev
- type: Pricing
  url: https://www.astrocal.dev/pricing
- type: TermsOfService
  url: https://www.astrocal.dev/terms
- type: PrivacyPolicy
  url: https://www.astrocal.dev/privacy
- type: SignUp
  url: https://www.astrocal.dev/signup
- type: Login
  url: https://www.astrocal.dev/login
apis:
- aid: astrocal-dev:astrocal-dev-activity-api
  name: Astrocal Activity API
  description: The Activity API from Astrocal — 1 operation(s) for activity.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Activity
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-activity-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-api-keys-api
  name: Astrocal API Keys API
  description: The API Keys API from Astrocal — 2 operation(s) for api keys.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - APIKeys
  tags_raw:
  - API Keys
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-api-keys-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-availability-api
  name: Astrocal Availability API
  description: The Availability API from Astrocal — 2 operation(s) for availability.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Availability
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-availability-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-booking-pages-api
  name: Astrocal Booking Pages API
  description: The Booking Pages API from Astrocal — 2 operation(s) for booking pages.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Booking Pages
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-booking-pages-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-bookings-api
  name: Astrocal Bookings API
  description: The Bookings API from Astrocal — 7 operation(s) for bookings.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Booking
  tags_raw:
  - Bookings
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-bookings-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-branding-api
  name: Astrocal Branding API
  description: The Branding API from Astrocal — 2 operation(s) for branding.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Branding
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-branding-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-calendars-api
  name: Astrocal Calendars API
  description: The Calendars API from Astrocal — 7 operation(s) for calendars.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Calendar
  tags_raw:
  - Calendars
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-calendars-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-conferencing-api
  name: Astrocal Conferencing API
  description: The Conferencing API from Astrocal — 4 operation(s) for conferencing.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Conferencing
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-conferencing-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-event-type-hosts-api
  name: Astrocal Event Type Hosts API
  description: The Event Type Hosts API from Astrocal — 2 operation(s) for event type hosts.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Event Type Hosts
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-event-type-hosts-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-event-types-api
  name: Astrocal Event Types API
  description: The Event Types API from Astrocal — 3 operation(s) for event types.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Event Types
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-event-types-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-organizations-api
  name: Astrocal Organizations API
  description: The Organizations API from Astrocal — 3 operation(s) for organizations.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Organization
  tags_raw:
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-organizations-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-payments-api
  name: Astrocal Payments API
  description: The Payments API from Astrocal — 2 operation(s) for payments.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-payments-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-stripe-api
  name: Astrocal Stripe API
  description: The Stripe API from Astrocal — 5 operation(s) for stripe.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Stripe
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-stripe-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-subscription-api
  name: Astrocal Subscription API
  description: The Subscription API from Astrocal — 4 operation(s) for subscription.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Subscription
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-subscription-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-support-api
  name: Astrocal Support API
  description: The Support API from Astrocal — 1 operation(s) for support.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Support
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-support-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-team-api
  name: Astrocal Team API
  description: The Team API from Astrocal — 6 operation(s) for team.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Team
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-team-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-test-data-api
  name: Astrocal Test Data API
  description: The Test Data API from Astrocal — 1 operation(s) for test data.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Test Data
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-test-data-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-usage-api
  name: Astrocal Usage API
  description: The Usage API from Astrocal — 2 operation(s) for usage.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Usage
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-usage-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-waitlist-api
  name: Astrocal Waitlist API
  description: The Waitlist API from Astrocal — 2 operation(s) for waitlist.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Waitlist
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-waitlist-api-openapi.yml
- aid: astrocal-dev:astrocal-dev-webhooks-api
  name: Astrocal Webhooks API
  description: The Webhooks API from Astrocal — 6 operation(s) for webhooks.
  humanURL: https://www.astrocal.dev/docs/api-reference
  baseURL: https://api.astrocal.dev
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/astrocal-dev-webhooks-api-openapi.yml
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-11-01'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company serves an API surface but requires credentials before any description of it can be read
  evidence:
  - url: https://api.astrocal.dev/v1/openapi.json
    status: null
  - url: https://api.astrocal.dev/mcp
    status: 401
  - url: https://astrocal.dev/
    status: 200
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Astrocal API — frequently asked questions

Does Astrocal have an API?

Yes. APIs.io lists 20 APIs from Astrocal, including Astrocal Activity API, Astrocal API Keys API and Astrocal Availability API, and 17 more.

Is there an OpenAPI specification for the Astrocal API?

Yes. APIs.io indexes 20 OpenAPI specifications for Astrocal, each linked for download from this page.

How do I authenticate with the Astrocal API?

Astrocal documents its authentication (2 schemes). The details are profiled on APIs.io as Astrocal Dev Authentication.

How much does the Astrocal API cost?

APIs.io lists 4 pricing plans for Astrocal, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the Astrocal API ready for AI agents?

Astrocal has a Kin Score of 58.6 out of 100 (strong) and an Agent Readiness score of 42.9 (agent-ready), scored by API Evangelist on 2026-11-02.

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