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Charter Captain MCP Server

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Charter Captain is listed as active in the registry but did not answer our last check. It exposes 10 tools.

Discover Lake Michigan charter captains & boats, check availability, get quotes, and book.

Uptime history 91 days of history · worst day 3%
91 days agonow
6.5%
Uptime 24h
6 of 92 checks
10
Tools
read from the server
550 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 19

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 August 2026. No other catalogue keeps this.

8 Nov 10 tools changed the parameters they ask for check_availability, create_boat_rental, create_booking and 7 more
8 Nov 4 tool descriptions were rewritten check_availability, create_boat_rental, create_booking and 1 more
14 Sep a tool changed version
31 Aug a tool description was rewritten check_availability
30 Aug 3 tools changed the parameters they ask for create_boat_rental, create_booking, search_boats

Charter Captain does not always answer

Over the last week it answered 24.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

run in your terminal
claude mcp add charter-captain --transport http https://api.chartercaptain.com/mcp/mcp
Settings → Connectors → Add custom connector, then paste this address
https://api.chartercaptain.com/mcp/mcp
~/.codex/config.toml
[mcp_servers.charter-captain]
url = "https://api.chartercaptain.com/mcp/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "charter-captain": {
      "url": "https://api.chartercaptain.com/mcp/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "charter-captain": {
      "type": "http",
      "url": "https://api.chartercaptain.com/mcp/mcp"
    }
  }
}

Available tools 10

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

boat
create_boat_rental
Book a bareboat boat rental. A boat with Instant Book on returns a Stripe Checkout link (payment.kind checkout_link) for the charterer to complete payment. For a boat whose owner reviews every request first (get_quote's instantBook: false), a request is sent instead: nothing is charged, the result is a request with the estimated total and deposit, and if the owner accepts, the charterer is emailed a link to pay. Requires captainChoiceRightAcknowledged: true (the charterer affirms their right to choose their own captain). Optionally attach a partner/affiliate code; partnerCode can't be used on a request (PARTNER_CODE_NOT_AVAILABLE_FOR_REQUESTS).
get_boat
Get a boat's full profile by id, enriched with a rating summary and the most recent reviews.
availability
check_availability
Check a captain's or boat's availability. Provide exactly one of captainSlug or boatId. Omit date to get available dates for the next 90 days; provide both date (YYYY-MM-DD) and durationHours to get bookable time slots for that date. Only departures that have not yet left (Chicago time) are listed, so a past date has no slots. Each slot lists its offeredDurations, and every entry carries the durationId to pass to get_quote, create_booking, or create_boat_rental (null means that length is offered but not bookable through the API). A captain trip that lists harborIds departs only from those harbors (ids as in get_captain's harbors): create_booking refuses any other harbor for that trip. Without harborIds, drive time rules out none of the captain's active harbors.
boats
search_boats
Search listed boats, optionally filtered by harbor, type, minimum capacity, and max hourly price, with sorting and pagination.
booking
create_booking
Book a charter with a captain. A captain with Instant Book on returns a Stripe Checkout link (payment.kind checkout_link) for the charterer to complete payment. A captain who reviews every request first (get_quote's instantBook: false) is sent a request instead: nothing is charged, the result is a request with the estimated total and deposit, and if the captain accepts, the charterer is emailed a link to pay. Optionally attach a partner/affiliate code to credit a referrer; partnerCode can't be used on a request (PARTNER_CODE_NOT_AVAILABLE_FOR_REQUESTS). harborId must be a harbor this captain departs from: one of get_captain's harbors, or any list_harbors harbor when get_captain lists none. create_booking refuses any other harbor with HARBOR_NOT_OFFERED, and that error's harbors field lists the ones the captain departs from.
captain
get_captain
Get a captain's full profile by tenant slug, enriched with a rating summary and the most recent reviews.
captains
search_captains
Search bookable charter captains, optionally filtered by harbor, with sorting and pagination. Returns a paginated list with starting price and rating.
harbors
list_harbors
List active harbors, each with a count of active captains and listed boats operating there.
ping
ping
Health check
quote
get_quote
Get a non-binding price quote (in cents) for a charter or rental. Provide exactly one of captainSlug or boatId, plus durationId and partySize. Pass `date` (YYYY-MM-DD) whenever you know it: the rate then comes from the operator's rate card for that day — weekday vs weekend vs holiday, including any per-date price the operator set — so the quote matches what checkout charges. Without a date, pass pricingTierId instead; the quote then reflects that tier and may differ from checkout for the actual day. Optionally pass a partnerCode to preview a discount. Returns currency, totalCents, depositCents, balanceCents, pricingModel, instantBook, and (when a code is given) a discountPreview. instantBook says what booking does: true → create_booking / create_boat_rental return a Stripe Checkout link; false → the operator reviews every request first, so booking sends them a request instead (nothing is charged until they accept, and partnerCode can't be used — the quote then prices no discount and its discountPreview says PARTNER_CODE_NOT_AVAILABLE_FOR_REQUESTS).

Endpoints

URLTransportStateLatencyChecked
https://api.chartercaptain.com/mcp/mcp streamable-http answering 65 ms 0 min ago

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Charter Captain — questions

Answers built from our own checks of this server.

What can Charter Captain do?
It exposes 10 tools, read directly from the server on our last check. Among them: check_availability, create_boat_rental, create_booking, get_boat, get_captain, get_quote and 4 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Charter Captain working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 6 of 92 checks got a reply (6.5%), average response time 550 ms. The bar chart above shows every period we have measured.
The registry lists Charter Captain as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Charter Captain?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Charter Captain need an API key?
No. Charter Captain completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Charter Captain?
It answers our handshake in 550 ms on average, which is faster than 20% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.