CalendarBridge

CalendarBridge syncs calendars together in real-time and provides scheduling pages built for people with multiple calendars. It enables seamless integration across Google, Outlook, and iCloud calendars, offering a unified view and automated scheduling to simplify coordination for individuals and teams.

CalendarBridge is listed with 1 API on the APIs.io network. Tagged areas include Company, Calendar, Scheduling, and Integration.

CalendarBridge’s developer surface includes support, getting-started guide, documentation, engineering blog, pricing, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

23.3/100 emerging Agent 6/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 API

Company Calendar Scheduling Integration

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 23.3/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.4 / 17

Access Clarity 11.2 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 4.1 / 9

Regulatory Posture 2.6 / 15

Agent readiness — 6/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 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 Horizontal (data, software, accessibility, platform) 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/.

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

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 14.3 — up to +17.1 composite points
Operational Transparency scores 0.0 — up to +13.0 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/calendarbridge/apis.yml: open an issue on github.com/api-evangelist/calendarbridge 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 1

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

APIs 1

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

CalendarBridge API

CalendarBridge provides calendar syncing and scheduling features via its web application. No public machine‑readable API contract was found.

CalendarBridge API pricing

Prices published by CalendarBridge, read 2026-11-03 from calendarbridge.com/pricing-group/.

Plan	Price
User License Basic (billed annually)	$4/mo
User License Premium (billed annually)	$8/mo
User License Pro (billed annually)	$32/mo
User License Basic (monthly)	$5/mo
User License Premium (monthly)	$10/mo
User License Pro (monthly)	$40/mo
Sync License (billed annually)	$3.20/mo
Sync License (monthly)	$4/mo

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Calendarbridge Plans Pricing

8 plans

PLANS

Security Posture 2

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

Calendarbridge Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Calendarbridge Trust Center

SOC 2, ISO 27001, PCI DSS, HIPAA, GDPR

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 3

Authentication, authorization, and security posture

Compliance

Compliance

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Pricing

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: calendarbridge
name: CalendarBridge
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  probe_state: unreadable
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://calendarbridge.com/wp-content/uploads/2026/09/CalendarBridge.jpg
description: CalendarBridge syncs calendars together in real-time and provides scheduling pages built for people with multiple
  calendars. It enables seamless integration across Google, Outlook, and iCloud calendars, offering a unified view and automated
  scheduling to simplify coordination for individuals and teams.
url: https://artifacts.apis.io/calendarbridge/apis.yml
x-type: company
x-source: harvest:apisio-search-qc-2026-10-24
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- Company
- Calendar
- Scheduling
- Integration
tags_raw:
- Company
- Calendar
- Scheduling
- Integration
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/calendarbridge-plans-pricing.yml
- type: Compliance
  url: https://trust.calendarbridge.com/
- type: Conformance
  url: conformance/calendarbridge-conformance.yml
- type: LLMsTxt
  url: llms/calendarbridge-llms.txt
- type: Hosts
  url: hosts/calendarbridge-hosts.yml
- type: Vendors
  url: vendors/calendarbridge-vendors.yml
- type: TermsOfService
  url: https://calendarbridge.com/terms-and-privacy/
- type: Support
  url: https://help.calendarbridge.com
- type: PrivacyPolicy
  url: https://calendarbridge.com/privacy-controls/
- type: Login
  url: https://app.calendarbridge.com/login/
- type: GettingStarted
  url: https://help.calendarbridge.com/user-docs/getting-started/
- type: Documentation
  url: https://help.calendarbridge.com/
- type: TrustCenter
  url: security/calendarbridge-trust-center.yml
- type: DomainSecurity
  url: security/calendarbridge-domain-security.yml
- type: Website
  url: https://calendarbridge.com
- type: Blog
  url: https://calendarbridge.com/blog/
- type: Pricing
  url: https://calendarbridge.com/pricing-individual/
- type: Pricing
  url: https://calendarbridge.com/pricing-group/
apis:
- name: CalendarBridge API
  description: CalendarBridge provides calendar syncing and scheduling features via its web application. No public machine‑readable
    API contract was found.
  humanURL: https://help.calendarbridge.com/
  aid: calendarbridge:calendarbridge-api
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Documentation pages are public HTML but no OpenAPI, AsyncAPI, GraphQL, gRPC, or WSDL contracts were discovered despite
    probing known paths.
  evidence:
  - url: https://app.calendarbridge.com/openapi.json
    status: 200
  - url: https://help.calendarbridge.com/openapi.json
    status: 404
  checked: '2026-11-03'
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 12
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

CalendarBridge API — frequently asked questions

Does CalendarBridge have an API?

Yes. APIs.io lists 1 API from CalendarBridge, including CalendarBridge API.

How much does the CalendarBridge API cost?

CalendarBridge publishes its prices; its User License Basic (billed annually) plan is $4/mo as of 2026-11-03. APIs.io lists 8 pricing plans for CalendarBridge, with each plan's price, limits and inclusions under Pricing on this page.

Is the CalendarBridge API ready for AI agents?

CalendarBridge has a Kin Score of 23.3 out of 100 (emerging) and an Agent Readiness score of 6.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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