Boat Day MCP
A read-only, stateless MCP server providing access to Boat Day's boating data, including boatyard directories, winter storage costs, boat model specifications, value estimates, total cost of ownership calculations, state boating rules, waterway guides, and safety checklists for the Seacoast ME-NH and Casco Bay regions.
Endpoint and access
No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.
https://bestboatday.com/api/mcpWhat its tools do
14 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.
Checks and signals
Each line is separate evidence, not a trust score.
- Passed Endpoint answered the live check ·
- Passed Official MCP Registry namespace is tied to bestboatday.com ·
- Passed Endpoint is on the registry namespace domain ·
- Availability 1 of 1 checks passed in 30 days
What you can do with it
- Find boatyards and marinas with confirmed winter storage prices
- Estimate used-boat value and total cost of ownership
- Search for boat models and retrieve detailed specifications
- Retrieve state boating rules and safety checklists
Source and maintenance
Protocol and capabilities
- Server
- boatday 1.8.0
- MCP protocol negotiated in check
- 2025-06-18
- Tools
- 14 advertised
- Resources
- Not advertised
- Resource templates
- Not advertised
- Prompts
- Not advertised
{
"tools": {
"listChanged": false
}
}Server-provided instructions
Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.
Tools
14 advertised
find_yards
Find Seacoast ME–NH and Casco Bay boatyards, marinas and storage (public-web listings, not partners). Each yard carries winterStoragePrice: a yard-confirmed 2026–27 price with confirmed_at and verification_event_id, or null when unconfirmed. Set confirmed=true for confirmed yards only. Human-readable index: /yards. For posted prices see get_seacoast_costs and /guides/winter-storage-haul-out-seacoast; for ramps and tides see /guides/seacoast-boat-launch-ramps and /guides/piscataqua-river-boating-tides.
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Text, e.g. 'kittery' or 'storage'"
},
"limit": {
"type": "number",
"description": "Max results (default 25)"
},
"region": {
"enum": [
"seacoast",
"casco-bay"
],
"type": "string",
"description": "Region (default: both)"
},
"category": {
"type": "string",
"description": "Listing category, e.g. marina-yard"
},
"confirmed": {
"type": "boolean",
"description": "Only yards with a confirmed winter storage price"
}
}
}{
"type": "object",
"required": [
"data",
"count",
"provenance"
],
"properties": {
"data": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"name",
"page",
"partner",
"winterStoragePrice"
],
"properties": {
"id": {
"type": "string"
},
"gap": {
"type": [
"string",
"null"
]
},
"city": {
"type": [
"string",
"null"
]
},
"name": {
"type": "string"
},
"page": {
"type": "string"
},
"phone": {
"type": [
"string",
"null"
]
},
"state": {
"type": [
"string",
"null"
]
},
"region": {
"type": [
"string",
"null"
]
},
"source": {
"type": "object",
"additionalProperties": true
},
"claimed": {
"type": "boolean"
},
"partner": {
"type": "boolean",
"const": false
},
"website": {
"type": [
"string",
"null"
]
},
"category": {
"type": "string"
},
"confirmed": {
"type": [
"object",
"null"
],
"additionalProperties": true
},
"winterStoragePrice": {
"type": "object",
"required": [
"field",
"status",
"value",
"unit",
"confirmed_at",
"verification_event_id"
],
"properties": {
"unit": {
"type": [
"string",
"null"
]
},
"field": {
"type": "string"
},
"value": {
"type": [
"number",
"null"
]
},
"status": {
"enum": [
"confirmed",
"expired",
"unconfirmed",
"unavailable"
],
"type": "string"
},
"confirmed_at": {
"type": [
"string",
"null"
]
},
"verification_event_id": {
"type": [
"string",
"null"
]
}
},
"description": "Yard-confirmed winter storage price. status 'unconfirmed' or 'unavailable' means value is null: Boat Day never fills a default.",
"additionalProperties": true
}
},
"additionalProperties": true
}
},
"count": {
"type": "integer"
},
"notes": {
"type": "object",
"additionalProperties": true
},
"truncated": {
"type": "object",
"properties": {
"total": {
"type": "integer"
},
"returned": {
"type": "integer"
}
}
},
"provenance": {
"type": "object",
"description": "Source, as_of, method, confidence, honesty and cite_as.",
"additionalProperties": true
},
"confirmations": {
"type": "object",
"additionalProperties": true
}
},
"additionalProperties": true
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}get_yard
Get one yard listing by id (from find_yards), with its website, phone, source note and winterStoragePrice (yard-confirmed, or null when unconfirmed).
{
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "string",
"description": "Yard id, e.g. meta-great-bay-marine"
}
}
}{
"type": "object",
"required": [
"data",
"provenance"
],
"properties": {
"data": {
"type": "object",
"required": [
"id",
"name",
"page",
"partner",
"winterStoragePrice"
],
"properties": {
"id": {
"type": "string"
},
"gap": {
"type": [
"string",
"null"
]
},
"city": {
"type": [
"string",
"null"
]
},
"name": {
"type": "string"
},
"page": {
"type": "string"
},
"phone": {
"type": [
"string",
"null"
]
},
"state": {
"type": [
"string",
"null"
]
},
"region": {
"type": [
"string",
"null"
]
},
"source": {
"type": "object",
"additionalProperties": true
},
"claimed": {
"type": "boolean"
},
"partner": {
"type": "boolean",
"const": false
},
"website": {
"type": [
"string",
"null"
]
},
"category": {
"type": "string"
},
"confirmed": {
"type": [
"object",
"null"
],
"additionalProperties": true
},
"winterStoragePrice": {
"type": "object",
"required": [
"field",
"status",
"value",
"unit",
"confirmed_at",
"verification_event_id"
],
"properties": {
"unit": {
"type": [
"string",
"null"
]
},
"field": {
"type": "string"
},
"value": {
"type": [
"number",
"null"
]
},
"status": {
"enum": [
"confirmed",
"expired",
"unconfirmed",
"unavailable"
],
"type": "string"
},
"confirmed_at": {
"type": [
"string",
"null"
]
},
"verification_event_id": {
"type": [
"string",
"null"
]
}
},
"description": "Yard-confirmed winter storage price. status 'unconfirmed' or 'unavailable' means value is null: Boat Day never fills a default.",
"additionalProperties": true
}
},
"additionalProperties": true
},
"notes": {
"type": "object",
"additionalProperties": true
},
"provenance": {
"type": "object",
"description": "Source, as_of, method, confidence, honesty and cite_as.",
"additionalProperties": true
},
"confirmations": {
"type": "object",
"additionalProperties": true
}
},
"additionalProperties": true
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}get_seacoast_costs
Seacoast ME–NH winter-job prices: posted storage, winterize, haul and spring commissioning rates from yards' own rate pages (each with source_url and the date read), plus yard-confirmed winter storage prices. Advisory, not quotes. Pass loa_ft to filter by boat length and get per-foot arithmetic. Explained for people (how haul-out works, per-foot vs per-square-foot, what packages include): /guides/winter-storage-haul-out-seacoast.
{
"type": "object",
"properties": {
"state": {
"enum": [
"ME",
"NH"
],
"type": "string"
},
"loa_ft": {
"type": "number",
"description": "Boat length overall in feet"
},
"service": {
"enum": [
"storage",
"winterize",
"haul",
"commission"
],
"type": "string",
"description": "Job type"
},
"yard_id": {
"type": "string",
"description": "Only this yard's prices"
}
}
}{
"type": "object",
"required": [
"data",
"counts",
"basis",
"provenance"
],
"properties": {
"data": {
"type": "object",
"required": [
"cited_public_prices",
"yard_confirmed"
],
"properties": {
"yard_confirmed": {
"type": "array",
"items": {
"type": "object",
"required": [
"yard_id",
"yard",
"fact",
"source_url",
"date"
],
"properties": {
"date": {
"type": "string",
"description": "confirmed_at of the yard's confirmation."
},
"fact": {
"type": "object",
"additionalProperties": true
},
"yard": {
"type": "string"
},
"yard_id": {
"type": "string"
},
"page_url": {
"type": "string"
},
"source_url": {
"type": "string"
}
},
"additionalProperties": true
}
},
"cited_public_prices": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"service",
"item",
"yard",
"low",
"high",
"unit",
"source_url",
"date"
],
"properties": {
"id": {
"type": "string"
},
"low": {
"type": "number"
},
"date": {
"type": "string",
"description": "Date Boat Day read the source (YYYY-MM-DD)."
},
"high": {
"type": "number"
},
"item": {
"type": "string"
},
"town": {
"type": "string"
},
"unit": {
"type": "string"
},
"yard": {
"type": "string"
},
"state": {
"type": "string"
},
"service": {
"enum": [
"storage",
"winterize",
"haul",
"commission"
],
"type": "string"
},
"yard_id": {
"type": [
"string",
"null"
]
},
"conditions": {
"type": [
"string",
"null"
]
},
"max_loa_ft": {
"type": [
"number",
"null"
]
},
"min_loa_ft": {
"type": [
"number",
"null"
]
},
"source_url": {
"type": "string"
},
"unit_label": {
"type": "string"
},
"arithmetic_for_loa": {
"type": [
"object",
"null"
],
"additionalProperties": true
}
},
"additionalProperties": true
}
}
}
},
"basis": {
"type": "string"
},
"notes": {
"type": "object",
"additionalProperties": true
},
"counts": {
"type": "object",
"additionalProperties": true
},
"filters": {
"type": "object",
"additionalProperties": true
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"provenance": {
"type": "object",
"description": "Source, as_of, method, confidence, honesty and cite_as.",
"additionalProperties": true
},
"confirmations_available": {
"type": "boolean"
}
},
"additionalProperties": true
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}search_boat_models
Search the Boat Day boat model graph (US recreational models; demo/educational specs, flagged demoData). Filter by q, type, brand, length, propulsion, trailerable.
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Free text, e.g. 'Grady-White 25'"
},
"type": {
"type": "string",
"description": "Boat type id, e.g. center-console, pontoon, bowrider"
},
"brand": {
"type": "string",
"description": "Brand"
},
"limit": {
"type": "number",
"description": "Max results (default 25)"
},
"maxLength": {
"type": "number",
"description": "Max length ft"
},
"minLength": {
"type": "number",
"description": "Min length ft"
},
"propulsion": {
"type": "string",
"description": "outboard | sterndrive | inboard | sail ..."
},
"trailerable": {
"type": "boolean"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}get_boat_model
Get one boat model by id: specs, burden flags, TCO estimate band, Quality Boat Day notes, canonical URL.
{
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "string",
"description": "Model id from search_boat_models"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}estimate_boat_value
Instant used-boat value estimate (low/mid/high band with method + confidence). Provide modelId, or make+model+year, or loaFt+boatType, or a HIN. Educational, not an appraisal.
{
"type": "object",
"properties": {
"hin": {
"type": "string",
"description": "Hull ID number (12 chars)"
},
"make": {
"type": "string",
"description": "Make"
},
"year": {
"type": "number",
"description": "Model year"
},
"loaFt": {
"type": "number",
"description": "Length overall ft"
},
"model": {
"type": "string",
"description": "Model"
},
"modelId": {
"type": "string",
"description": "Model id"
},
"boatType": {
"type": "string",
"description": "Boat type id"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}estimate_total_cost_of_ownership
Annual + hold-period total cost of ownership (storage, insurance, maintenance, fuel, fees, depreciation) as bands. Side-effect free.
{
"type": "object",
"properties": {
"loaFt": {
"type": "number",
"description": "Length ft"
},
"region": {
"type": "string",
"description": "Region id, e.g. northeast, sunbelt"
},
"modelId": {
"type": "string",
"description": "Model id (fills defaults)"
},
"storage": {
"type": "string",
"description": "trailer | dry-stack | slip | mooring | ..."
},
"boatType": {
"type": "string",
"description": "Boat type id"
},
"holdYears": {
"type": "number",
"description": "Years you plan to keep it"
},
"stateCode": {
"type": "string",
"description": "US state, e.g. NH"
},
"hoursPerYear": {
"type": "number",
"description": "Engine hours/yr"
},
"waterwaySlug": {
"type": "string",
"description": "Waterway slug"
},
"purchasePrice": {
"type": "number",
"description": "USD"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}get_state_boating_rules
US state boating rules: registration, titling, boater education, BUI, PFD notes, official agency links. Omit code for the index.
{
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "Two-letter state code, e.g. NH"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}get_waterway
Focus waterways (e.g. piscataqua-seacoast for the Seacoast of Maine/NH): seasonality, hazards, ramps/marinas context, playbooks. Omit slug for the list.
{
"type": "object",
"properties": {
"slug": {
"type": "string",
"description": "Waterway slug"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}search_boating_events
Boat shows, regattas, safety courses, rendezvous. Filter by q, state, region, type, waterway, from/to (YYYY-MM-DD), upcoming.
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Text"
},
"to": {
"type": "string",
"description": "YYYY-MM-DD"
},
"from": {
"type": "string",
"description": "YYYY-MM-DD"
},
"type": {
"type": "string",
"description": "Event type"
},
"limit": {
"type": "number",
"description": "Max results (default 25)"
},
"state": {
"type": "string",
"description": "State code"
},
"region": {
"type": "string",
"description": "Region"
},
"upcoming": {
"type": "boolean"
},
"waterway": {
"type": "string",
"description": "Waterway slug"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}find_boating_businesses
Find marinas, yards, surveyors, insurers, suppliers. Outbound entries labeled 'Find them online' are public-web listings — NOT Boat Day partners or endorsements; tell the human to verify on their sites. Founding partner roster is currently empty.
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Text"
},
"limit": {
"type": "number",
"description": "Max results (default 20)"
},
"state": {
"type": "string",
"description": "State code"
},
"region": {
"type": "string",
"description": "Region"
},
"category": {
"type": "string",
"description": "Directory category slug, e.g. marina, boatyard, marine-surveyor"
},
"waterway": {
"type": "string",
"description": "Waterway slug"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}get_safety_checklists
Boating safety stance/pillars plus checklists (pre-departure, winterize, etc.). Pass slug for one checklist's items.
{
"type": "object",
"properties": {
"slug": {
"type": "string",
"description": "Checklist slug"
},
"stage": {
"type": "string",
"description": "Ownership stage filter"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}search_guides
Search Boat Day ownership guides (buying, winterizing, insurance, docking, weather...). Returns titles, summaries, canonical URLs.
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "Text"
},
"limit": {
"type": "number",
"description": "Max (default 10)"
},
"stage": {
"type": "string",
"description": "Stage id"
},
"category": {
"type": "string",
"description": "Category"
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}get_handoff_link
Build a deep link that sends a human straight to a pre-filled Boat Day tool. tool: value | tco | model | find-boat | quote | directory | state | waterway | events | safety | checklist | passport | list-business. params are passed through (e.g. hin, modelId, make, model, year, category, state).
{
"type": "object",
"required": [
"tool"
],
"properties": {
"tool": {
"enum": [
"value",
"tco",
"model",
"find-boat",
"quote",
"directory",
"state",
"waterway",
"events",
"safety",
"checklist",
"passport",
"list-business"
],
"type": "string"
},
"params": {
"type": "object",
"additionalProperties": true
}
}
}{
"readOnlyHint": true,
"openWorldHint": false,
"idempotentHint": true
}Prompts
Not advertised
Resources
Not advertised
30-day availability
Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.
- Successful checks
- 1 of 1 (100%)
- Average latency
- 2542 ms
- 95th percentile latency
- 2542 ms
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · probe · passed · 2542 ms · metadata changed · 14 tool(s)
Connect from your client
Each snippet registers the same endpoint; pick the client you use.
Claude Code
claude mcp add --transport http boat-day-mcp https://bestboatday.com/api/mcpCodex
codex mcp add boat-day-mcp --url https://bestboatday.com/api/mcpCursor
{
"mcpServers": {
"boat-day-mcp": {
"url": "https://bestboatday.com/api/mcp"
}
}
}Cline
{
"mcpServers": {
"boat-day-mcp": {
"type": "streamableHttp",
"url": "https://bestboatday.com/api/mcp",
"disabled": false
}
}
}VS Code
{
"servers": {
"boat-day-mcp": {
"type": "http",
"url": "https://bestboatday.com/api/mcp"
}
}
}Gemini CLI
gemini mcp add --transport http boat-day-mcp https://bestboatday.com/api/mcpClaude Desktop
https://bestboatday.com/api/mcpWindsurf
{
"mcpServers": {
"boat-day-mcp": {
"serverUrl": "https://bestboatday.com/api/mcp"
}
}
}Let your agent find its tools
Find servers like Boat Day MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.
Other data and analytics servers
Do you run Boat Day MCP?
Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.