Charter Captain
Charter Captain operates a marketplace for chartering boats on Lake Michigan, allowing users to browse, filter, and book vessels based on date, passenger capacity, harbor, and rates. The platform connects boat owners with renters, providing a seamless experience for lake outings and private charters.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Charter Captain the way a machine reads it — 36 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 — Charter Captain scores 32.6/100 (thin), with a separate agent-readiness read of 36/100 (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.
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 2026-11-06 · rubric v0.27.0
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<!-- Kin Score · API Evangelist -->
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title="Charter Captain on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/chartercaptain-com.svg"
alt="Charter Captain Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/chartercaptain-com/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/chartercaptain-com/"
title="Charter Captain on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/chartercaptain-com/card.svg"
alt="Charter Captain 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 Charter Captain
Each block below is one kind of artifact we hold for Charter Captain. 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 23
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.
Charter Captain Auth API
The Auth API from Charter Captain — 3 operation(s) for auth.
Charter Captain Availability API
The Availability API from Charter Captain — 2 operation(s) for availability.
Charter Captain Boats API
The Boats API from Charter Captain — 2 operation(s) for boats.
Charter Captain Bookings API
The Bookings API from Charter Captain — 6 operation(s) for bookings.
Charter Captain Calendar API
The Calendar API from Charter Captain — 3 operation(s) for calendar.
Charter Captain Contracts API
The Contracts API from Charter Captain — 6 operation(s) for contracts.
Charter Captain Customer Gigs API
The Customer Gigs API from Charter Captain — 3 operation(s) for customer gigs.
Charter Captain Customers API
The Customers API from Charter Captain — 3 operation(s) for customers.
Charter Captain Dashboard API
The Dashboard API from Charter Captain — 1 operation(s) for dashboard.
Charter Captain Favorites API
The Favorites API from Charter Captain — 3 operation(s) for favorites.
Charter Captain Harbors API
The Harbors API from Charter Captain — 1 operation(s) for harbors.
Charter Captain Marketplace API
The Marketplace API from Charter Captain — 15 operation(s) for marketplace.
Charter Captain Meta API
The Meta API from Charter Captain — 1 operation(s) for meta.
Charter Captain Notifications API
The Notifications API from Charter Captain — 3 operation(s) for notifications.
Charter Captain Payments API
The Payments API from Charter Captain — 2 operation(s) for payments.
Charter Captain Rental Payments API
The Rental Payments API from Charter Captain — 2 operation(s) for rental payments.
Charter Captain Rentals API
The Rentals API from Charter Captain — 1 operation(s) for rentals.
Charter Captain Revenue API
The Revenue API from Charter Captain — 1 operation(s) for revenue.
Charter Captain Settings API
The Settings API from Charter Captain — 4 operation(s) for settings.
Charter Captain Sub Out API
The sub-out API from Charter Captain — 10 operation(s) for sub-out.
Charter Captain Uploads API
The Uploads API from Charter Captain — 2 operation(s) for uploads.
Charter Captain Waivers API
The Waivers API from Charter Captain — 6 operation(s) for waivers.
Charter Captain Weather API
The Weather API from Charter Captain — 1 operation(s) for weather.
Scroll within the panel for all 23 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
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.
chartercaptain-com-rental-payment-refund
AGENT SKILLSemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Chartercaptain Com Context
JSON-LDSpectral 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.
Charter Captain API Rules
SPECTRALJSON Schema 6
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
BoatProfile
JSON SCHEMABooking
JSON SCHEMACaptainProfile
JSON SCHEMACaptain
JSON SCHEMACustomerGigDetail
JSON SCHEMAMarketplaceCaptain
JSON SCHEMASecurity 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.
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 Charter Captain — 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 1
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 8
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 8 ·
Access & Security 2
Authentication, authorization, and security posture
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
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/chartercaptain-com · machine-readable index on apis.io
This is an independent, third-party profile of Charter Captain, 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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