Charter Captain
REMOTE · API.CHARTERCAPTAIN.COM · SCANNED SEP 20
Discover Lake Michigan charter captains & boats, check availability, get quotes, and book.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability60
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 929 tokens (~92/item across 10 items; 10 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Charter Captain MCP server?
Charter Captain is a hosted endpoint at https://api.chartercaptain.com/mcp/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · api.chartercaptain.com
claude mcp add --transport http com-chartercaptain-charter-captain 'https://api.chartercaptain.com/mcp/mcp'
{
"mcpServers": {
"com-chartercaptain-charter-captain": {
"url": "https://api.chartercaptain.com/mcp/mcp"
}
}
} {
"servers": {
"com-chartercaptain-charter-captain": {
"type": "http",
"url": "https://api.chartercaptain.com/mcp/mcp"
}
}
} [mcp_servers.com-chartercaptain-charter-captain] url = "https://api.chartercaptain.com/mcp/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-chartercaptain-charter-captain": {
"type": "remote",
"url": "https://api.chartercaptain.com/mcp/mcp",
"enabled": true
}
}
} openclaw mcp add com-chartercaptain-charter-captain --url 'https://api.chartercaptain.com/mcp/mcp' --transport streamable-http
mcp_servers:
com-chartercaptain-charter-captain:
url: "https://api.chartercaptain.com/mcp/mcp" {
"McpServers": {
"com-chartercaptain-charter-captain": {
"Transport": "http",
"Url": "https://api.chartercaptain.com/mcp/mcp"
}
}
} assistant mcp add com-chartercaptain-charter-captain -t streamable-http -u 'https://api.chartercaptain.com/mcp/mcp'
{
"mcpServers": {
"com-chartercaptain-charter-captain": {
"type": "http",
"url": "https://api.chartercaptain.com/mcp/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 15 Sept 26 0
- The server changed its declared name: mcp-typescript server on vercel → Charter Captain security
- Server version: 0.1.0 → 1.1.0 functional
- 31 Aug 26 0
- Tool “check_availability” rewrote its description, which is the text the model reads security
- 26 Aug 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 +1
- Stability: 0.97 → pass security
- 23 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Probed https://api.chartercaptain.com/mcp/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=api.chartercaptain.com | CN=YR1,O=Let's Encrypt,C=US | 12 Aug 2026 | 10 Nov 2026 | RSA 2048 | SHA256-RSA | 60afcb48b9a81bc99cf1beb1b02a904a56d |
| SANs: api.chartercaptain.com | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of api.chartercaptain.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| chartercaptain.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.chartercaptain.com/mcp/mcp | Verified | 200 | |
| http (plaintext) | http://api.chartercaptain.com/mcp/mcp | HTTPS enforced | 308 | https://api.chartercaptain.com/mcp/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
check_availability Check Availability ~139
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. 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).
| Name | Type | Req | Description |
|---|---|---|---|
| boatId | string | – | – |
| captainSlug | string | – | – |
| date | string | – | – |
| durationHours | integer | – | – |
No output schema declared.
No examples provided.
create_boat_rental Create Boat Rental ~167
Book a bareboat boat rental and get a Stripe Checkout link for the charterer to complete payment. Requires captainChoiceRightAcknowledged: true (the charterer affirms their right to choose their own captain). Optionally attach a partner/affiliate code.
| Name | Type | Req | Description |
|---|---|---|---|
| boatId | string | yes | – |
| captainChoiceRightAcknowledged | boolean | yes | – |
| date | string | yes | – |
| durationId | string | yes | – |
| string | yes | – | |
| firstName | string | yes | – |
| lastName | string | yes | – |
| partnerCode | string | – | – |
| partySize | integer | yes | – |
| phone | string | yes | – |
| pricingTierId | string | yes | – |
| specialRequests | string | – | – |
| startTime | string | yes | – |
No output schema declared.
No examples provided.
create_booking Create Booking ~144
Book a charter with a captain and get a Stripe Checkout link for the charterer to complete payment. Optionally attach a partner/affiliate code to credit a referrer.
| Name | Type | Req | Description |
|---|---|---|---|
| captainSlug | string | yes | – |
| date | string | yes | – |
| durationId | string | yes | – |
| string | yes | – | |
| firstName | string | yes | – |
| harborId | string | yes | – |
| lastName | string | yes | – |
| partnerCode | string | – | – |
| partySize | integer | yes | – |
| phone | string | yes | – |
| pricingTierId | string | yes | – |
| specialRequests | string | – | – |
| startTime | string | yes | – |
No output schema declared.
No examples provided.
get_boat Get Boat ~37
Get a boat's full profile by id, enriched with a rating summary and the most recent reviews.
| Name | Type | Req | Description |
|---|---|---|---|
| boatId | string | yes | – |
No output schema declared.
No examples provided.
get_captain Get Captain ~38
Get a captain's full profile by tenant slug, enriched with a rating summary and the most recent reviews.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | – |
No output schema declared.
No examples provided.
get_quote Get Quote ~215
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, and (when a code is given) a discountPreview.
| Name | Type | Req | Description |
|---|---|---|---|
| boatId | string | – | – |
| captainSlug | string | – | – |
| date | string | – | – |
| durationId | string | yes | – |
| partnerCode | string | – | – |
| partySize | integer | yes | – |
| pricingTierId | string | – | – |
No output schema declared.
No examples provided.
list_harbors List Harbors ~29
List active harbors, each with a count of active captains and listed boats operating there.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
ping Ping ~10
Health check
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_boats Search Boats ~84
Search listed boats, optionally filtered by harbor, type, minimum capacity, and max hourly price, with sorting and pagination.
| Name | Type | Req | Description |
|---|---|---|---|
| harbor | string | – | – |
| limit | integer | – | – |
| maxPrice | integer | – | – |
| minCapacity | integer | – | – |
| page | integer | – | – |
| sort | string | – | – |
| type | string | – | – |
No output schema declared.
No examples provided.
search_captains Search Captains ~66
Search bookable charter captains, optionally filtered by harbor, with sorting and pagination. Returns a paginated list with starting price and rating.
| Name | Type | Req | Description |
|---|---|---|---|
| harbor | string | – | – |
| limit | integer | – | – |
| page | integer | – | – |
| sort | string | – | – |
No output schema declared.
No examples provided.
What is the Charter Captain MCP server?
Charter Captain is an MCP server listed in the public MCP registry as com.chartercaptain/charter-captain. Discover Lake Michigan charter captains & boats, check availability, get quotes, and book. This page covers its hosted endpoint (https://api.chartercaptain.com/mcp/mcp).
Is the Charter Captain MCP server safe to use?
Charter Captain scores 82 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Charter Captain MCP server expose?
Charter Captain exposes 10 tools: ping, search_captains, search_boats, get_captain, get_boat, and 5 more. Their descriptions and schemas cost roughly 929 tokens of context every time the server is loaded.
Does the Charter Captain MCP server require authentication?
No. We connected to Charter Captain without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Charter Captain MCP server still maintained?
Charter Captain is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.