io.github.Tomalarrrr/cyclesite-mcp-server

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Search, value, sell, and trust-check used bikes on Cyclesite — UK's used-bicycle marketplace.

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Copy this into your MCP client config:

{
  "mcpServers": {
    "cyclesite-mcp-server": {
      "url": "https://www.cyclesite.co.uk/api/mcp-server",
      "transport": "streamable-http"
    }
  }
}

Measured tools (34)

• search_bikes read-only

  Search live UK used-bike listings on Cyclesite (the UK's used bicycle marketplace). Filter by brand, category, city, price range, and condition. Returns up to 5 active listings with specs and listing URLs. Live data — refreshed continuously as new bikes are listed. Example queries: 'a Trek Domane in Manchester under £2,000', 'gravel bike, very good condition, near Bristol'.

  Parameters:

  • city — string — UK city.
  • brand — string — Bike brand (e.g. Trek, Specialized, Canyon).
  • category — string — Bike category.
  • maxPrice — number — Maximum price in GBP.
  • minPrice — number — Minimum price in GBP.
  • condition — string — Condition rating.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_recent_listings read-only

  What's new on Cyclesite right now — up to 10 of the freshest active UK listings, refreshed every 15 minutes. Use when the user asks 'what's new today?' or 'any new road bikes this week?' rather than for a specific filter. Optional category + maxPrice filters. Live data.

  Parameters:

  • limit — number — How many listings to return (1-10, default 10).
  • category — string
  • maxPrice — number — Maximum price in GBP.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_listing_detail read-only

  Full details for a specific bike listing on Cyclesite — specs, condition, frame number presence, photos, delivery, seller's city. Provide the URL slug returned by search_bikes or get_recent_listings. Example: after the user says 'tell me more about that 2022 Trek Domane', call this with the slug from the prior result.

  Parameters:

  • slug (required) — string — Listing URL slug (e.g. "used-trek-domane-sl-6-2022").

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• find_similar_listings read-only

  Given a Cyclesite listing slug, return up to 5 similar active listings (same category, ±25% price, same brand or frame size weighted higher). Use when the user is interested in one bike and wants alternatives. Example: 'show me bikes like that one'.

  Parameters:

  • slug (required) — string — Source listing URL slug.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• search_by_location read-only

  Find Cyclesite listings within a radius of a UK location (lat/lng). Radius capped at 50 miles. Returns up to 10 listings ordered by distance. Live UK marketplace data. Example: 'used bikes within 25 miles of LE10 0AA' (geocode the postcode first, then call this).

  Parameters:

  • lat (required) — number — Latitude (UK only, 49.5–61.0).
  • lng (required) — number — Longitude (UK only, -8.5–2.0).
  • limit — number — 1-10, default 5.
  • category — string
  • maxPrice — number
  • radiusMiles — number — Search radius in miles (1-50, default 25).

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• recommend_bike_for_budget read-only

  Curated picks from Cyclesite's live UK inventory for a budget and intent. Prefers higher-engagement listings. Returns up to 5 picks with a one-line rationale each. Example queries: 'a road bike for £1,500 for weekend rides', 'best e-MTB I can buy under £3,000', 'commuter bike in London under £400'.

  Parameters:

  • budgetGbp (required) — number — Maximum budget in GBP.
  • city — string — UK city to focus on (optional).
  • limit — number — 1-10, default 5.
  • useCase — string — Free-text intent (e.g. "commuting", "weekend trail", "first road bike").
  • category — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• list_brands read-only

  Paginated UK bike-brand catalogue from Cyclesite, ordered by stock level. Use to validate a brand name, surface options to a user, or paginate the catalogue. Stock counts are returned as bands (none / 1-5 / 6-25 / 26-100 / 100+) — Cyclesite doesn't expose precise per-brand inventory. Example: 'what brands of e-bike are available?'.

  Parameters:

  • q — string — Optional search filter (case-insensitive contains).
  • limit — number — 1-50, default 25.
  • offset — number — 0-500.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• list_models_for_brand read-only

  Models for a brand on Cyclesite (paginated). Returns model names, year ranges, in-stock flag. Example: "what Trek road bikes are available?" → list_brands(q:"Trek") → list_models_for_brand(brandSlug:"trek", category:"road").

  Parameters:

  • brandSlug (required) — string — Brand slug from list_brands (lowercase, hyphenated).
  • limit — number — 1-50, default 25.
  • offset — number — 0-500.
  • category — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_model_info read-only

  Cyclesite catalogue entry for a brand+model: category, year range, AI-generated description, key specs, market summary. Reference data — refreshed when models are added or specs change. Example: 'tell me about the Specialized Allez'.

  Parameters:

  • brand (required) — string
  • model (required) — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_spec_sheet read-only

  Aggregated spec sheet for a brand+model[+year], derived from Cyclesite's live UK inventory plus the catalogue record. Returns the most-common frame material, wheel size, groupset, brakes, weight, and (for e-bikes) motor and battery specs. Example: 'what groupset does a Canyon Endurace usually have?'.

  Parameters:

  • brand (required) — string
  • model (required) — string
  • year — number

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• compare_bikes read-only

  Side-by-side comparison of up to 3 bikes (each by brand+model[+year]). Returns spec sheets and valuations together so the user can pick. Reuses get_spec_sheet + get_valuation server-side. Example: 'compare a Trek Domane SL 6 against a Specialized Roubaix Comp'.

  Parameters:

  • bikes (required) — array

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_size_guide read-only

  Frame-size recommendation for a rider's height and bike category, the same chart Cyclesite publishes at /bike-size-calculator (height to inside leg to seat tube), refined by real UK listing data where riders' declared heights are available. Children are sized by wheel diameter instead and the tool says so. Example: 'I'm 178cm — what road-bike size do I need?'.

  Parameters:

  • heightCm (required) — number — Rider height in centimetres (120-220).
  • category — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_valuation read-only

  What a used UK bike is worth right now, Cyclesite's flagship tool. Returns median, range, a measured price-by-model-year curve, confidence level, and comparable active listings. Pass `year` when the user names one and the answer is resolved against that model year's own measured median and confidence interval, instead of the all-years median. Sourced from real UK market prices, the last-advertised asking prices bikes are listed for (not confirmed sale prices), refreshed nightly. Example: 'what's a 2022 Trek Domane SL 6 worth?'.

  Parameters:

  • brand (required) — string
  • model (required) — string
  • year — number — Model year, e.g. 2022. Optional. When given, the response carries a `forYear` block resolving the valuation to that year, or saying in words why it could not be.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• suggest_listing_price read-only

  For a seller about to list: suggested ask, floor, and ceiling for their bike's brand+model[+year][+condition] on the UK market. Same measured UK used-price data as get_valuation but framed as seller guidance. Pass `year` when the seller names one — the ask is then anchored on that model year's own median rather than the all-years median. Example: 'I'm selling a 2021 Specialized Allez in good condition — what should I ask?'.

  Parameters:

  • brand (required) — string
  • model (required) — string
  • year — number — Model year, e.g. 2021. Optional. Anchors the ask on that year when the curve covers it; `basis` in the response always names what the ask was actually derived from.
  • condition — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_market_index read-only

  Current UK used-bike market prices by category, from Cyclesite's nightly index. Returns median + range per category (road, mtb, gravel, e-bike, etc.). Example: 'how does the UK used-bike market look right now?'. Refreshed nightly from real UK market prices.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_market_health read-only

  Buyer's-vs-seller's market signal for the UK used-bike market — should the user buy or sell now? Composite indicator from days-to-sell, asking-vs-sold-price spread, and inventory levels. Example: 'is now a good time to buy a road bike?'. Refreshed nightly.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_depreciation read-only

  Brands ranked by how well (or poorly) they hold their value, from Cyclesite's measured UK used-price data. Returns top N brands by % retained vs new RRP. Example: 'which bike brands hold their value best?'.

  Parameters:

  • sort — string
  • limit — number — 1-20, default 10.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_price_trends read-only

  UK used-bike price trends over the last N months by category, from Cyclesite's index series. Example: 'how have road-bike prices changed in 2026?'. Monthly data, refreshed at month-end.

  Parameters:

  • months — number — 1-24.
  • category — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• grade_listing_quality read-only

  Categorical quality grade for a Cyclesite listing (excellent / good / fair / weak) plus up to 2 wins and 2 flags. Helps a buyer assess trustworthiness; helps a seller self-audit. Example: 'is this listing trustworthy?' (provide the slug). Note: returns the *categorical* judgement only, not the underlying score (intentional to avoid gaming).

  Parameters:

  • slug (required) — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• draft_listing read-only

  Sell-side helper: turn a seller's raw facts into a polished Cyclesite listing draft (title, description, suggested price, photo plan). Does NOT publish — for actual publication use publish_listing (requires OAuth). Useful for previewing what a listing would look like. Example: 'help me draft a listing for my 2021 Specialized Allez, very good condition, in Bristol'.

  Parameters:

  • brand (required) — string
  • model (required) — string
  • city — string
  • year — number
  • groupset — string
  • willShip — boolean
  • condition — string
  • frameSize — string
  • knownIssues — string — Honest declaration of any issues.
  • itemCondition — string — Whether the bike is new (never ridden) or used. Defaults to used. A new bike gets no used-market price suggestion.

  Hints: read-only yes · destructive not declared · idempotent no · open-world yes

• check_stolen read-only

  Check if a UK bicycle is reported stolen by serial number. Cyclesite checks an international stolen-bike registry and theft reports filed by riders, the unique data we own. Per-serial rate-limited (3/hour) to prevent enumeration. Example: 'is the bike with serial WTU123456 reported stolen?'. Live data, checked on every call. If the user has found a bike rather than bought one, send them to https://www.cyclesite.co.uk/stolen-bikes/found, where they can check the frame number and leave the owner a message themselves.

  Parameters:

  • serial (required) — string — Frame/serial number (4-50 chars).

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• report_stolen read-only

  Step-by-step guidance for reporting a stolen UK bike: police, insurance, listing alerts. Returns a 5-step checklist plus the official Cyclesite report URL. Example: 'my bike was just stolen, what do I do?'.

  Parameters:

  • brand — string
  • model — string
  • serial — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_buying_guide read-only

  Search Cyclesite's expert buying guides (24+ articles by cycling-journalism authors). Returns up to 3 matching guides with title, excerpt, difficulty, reading time, and URL. Use for educational queries that don't need live inventory. Example: 'how do I choose a bike size?', 'tips for buying a used e-bike'.

  Parameters:

  • query (required) — string — What to search for (e.g. "first road bike", "bike sizing").
  • limit — number — 1-5, default 3.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• publish_listing destructive

  Publish a Cyclesite listing on the user's behalf. Multi-step: first call (no draftId) returns a phone-friendly photo upload URL; once 3+ photos are uploaded, the next call returns either step:'live' (listing is free, no payment needed) or step:'payment_required' with a Stripe Checkout URL. Idempotent — keep calling with the same draftId until step:'live'. Requires OAuth scope `listings:publish`. Example flow: user says 'sell my Trek Domane' → call publish_listing → assistant directs user to upload URL → user uploads → call again → step:'live' → seller receives a confirmation email with a 24h undo link.

  Parameters:

  • city — string — UK city.
  • year — number
  • brand — string
  • model — string
  • title — string — Listing title (10-160 chars).
  • draftId — string — Returned by a previous call. Omit on first call.
  • isEbike — boolean — True for an electric bike.
  • category — string
  • groupset — string
  • priceGbp — number
  • willShip — boolean
  • condition — string
  • frameSize — string
  • motorBrand — string — E-bike motor make, e.g. "Bosch", "Shimano", "Bafang".
  • motorModel — string — E-bike motor model, e.g. "Performance Line CX".
  • description — string — Listing description (30-5000 chars).
  • frameSerial — string — Frame/serial number — runs a stolen-bike check before publish.
  • knownIssues — string
  • batteryCycles — number — Charge cycles as the seller reports them.
  • itemCondition — string — Whether the bike is new (never ridden) or used. Defaults to used.
  • motorPosition — string
  • ebikeBatteryWh — number — Battery capacity in watt-hours (100-3000).
  • rangeEstimateMiles — number — Range the seller claims on one charge, in miles.
  • batteryHealthPercent — number — Battery health as the seller reports it, 0-100.

  Hints: read-only no · destructive yes · idempotent yes · open-world yes

• list_my_listings read-only

  Show the authenticated user's Cyclesite listings (draft / active / sold). Requires OAuth scope `listings:read`. Example: 'how are my listings doing?'.

  Parameters:

  • limit — number — 1-20.
  • status — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• mark_as_sold destructive

  Mark a Cyclesite listing as sold, optionally with the final sale price, where it sold and the date it sold. Requires OAuth scope `listings:manage`. Example: 'mark my Trek Domane as sold for £1,750 on Facebook last Saturday'.

  Parameters:

  • listingId (required) — string
  • soldOn — string — The day it sold, YYYY-MM-DD. Leave out for today. Ignored if in the future or before the listing went up.
  • saleVenue — string — Where the sale was agreed.
  • salePriceGbp — number — What it actually sold for. Leave out if the seller did not say.

  Hints: read-only no · destructive yes · idempotent yes · open-world yes

• get_my_enquiries read-only

  Show buyer enquiries on the authenticated user's Cyclesite listings. Requires OAuth scope `listings:read`. Example: 'any messages about my Trek?'.

  Parameters:

  • limit — number — 1-20.
  • listingId — string

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• get_my_messages read-only

  Read the buyer's own Cyclesite message threads and any seller replies. Call with no args to list your conversations; pass a threadId to read one thread's messages. Pairs with make_enquiry (which saves the enquiry to your inbox). Requires OAuth scope `listings:read`. Example: 'did the seller of that Trek reply yet?'.

  Parameters:

  • limit — number — 1-50.
  • threadId — string — Thread id from a prior get_my_messages list or make_enquiry. Omit to list all your threads.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• respond_to_enquiry destructive

  Reply to a buyer enquiry on the authenticated user's listing. Requires OAuth scope `enquiries:respond`. Example: 'reply to that enquiry — say it's still available, collection only'.

  Parameters:

  • enquiryId (required) — string
  • answer (required) — string — Reply text (1-2000 chars).

  Hints: read-only no · destructive yes · idempotent no · open-world yes

• search read-only

  OpenAI deep-research / company-knowledge compatibility. Search Cyclesite's active UK used-bike listings by free-text query (matches title, brand, model). Returns the canonical OpenAI shape: { results: [{ id, title, url }] }. Use the id to call fetch() for the full document.

  Parameters:

  • query (required) — string — Free-text query.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• fetch read-only

  OpenAI deep-research / company-knowledge compatibility. Fetch the full document for a Cyclesite listing id (returned by the search tool). Returns { id, title, text, url, metadata } — text is a plain-prose summary of the listing's description and specs, suitable for direct quoting in deep-research answers.

  Parameters:

  • id (required) — string — Document id from search results.

  Hints: read-only yes · destructive not declared · idempotent yes · open-world yes

• save_search

  Subscribe the user to alerts for new Cyclesite listings matching a filter — the AI assistant will then proactively notify them when a matching bike appears (price drop or fresh listing). Requires OAuth scope `listings:read` (read-only on data, but this is technically a write — it creates a SavedSearch row on the user's account). Examples: 'let me know when a Trek Domane SL 6 in Manchester under £2,000 appears', 'alert me to any e-MTB drops below £2,500 in Yorkshire'. Each user is capped at 50 active alerts.

  Parameters:

  • city — string — UK city to focus on.
  • name — string — Optional human-readable name (e.g. "Trek Domane in Manchester").
  • brand — string
  • model — string
  • category — string
  • maxPrice — number
  • minPrice — number
  • condition — string
  • alertFrequency — string — How often to send digest. Default: instant.

  Hints: read-only no · destructive no · idempotent no · open-world yes

• make_enquiry destructive

  Send an enquiry to a Cyclesite seller on the buyer's behalf. It's saved to the buyer's Cyclesite inbox and the seller is notified. Per-buyer-per-listing daily cap (2/day) prevents spam. Read the seller's reply with get_my_messages. Requires OAuth scope `enquiries:respond` (note: the scope name is shared with seller-side replies). Example: 'message the seller of that Trek and ask if they'd take £1,400 collection only in Manchester next Saturday'.

  Parameters:

  • listingId (required) — string — Bike ID from search_bikes / get_listing_detail.
  • message (required) — string — The buyer's question to the seller (10-2000 chars).

  Hints: read-only no · destructive yes · idempotent no · open-world yes

• reserve_listing

  Hold a Cyclesite listing for 24 hours so other buyers can't claim it while the user decides. The hold is free and advisory (the seller isn't obligated to honour it — message the seller to confirm). Paid deposit-backed holds are coming soon; do not offer deposits today. The first UK marketplace where a buyer can COMMIT inside an AI conversation. Requires OAuth scope `listings:manage`. Example: 'put a hold on that Trek for me, I want to view it Saturday'.

  Parameters:

  • listingId (required) — string
  • depositGbp — number — COMING SOON — deposits are not yet available; omit this field (the server refuses it with payments_unavailable). When live: optional refundable deposit (£10-£500) via Stripe Checkout.

  Hints: read-only no · destructive no · idempotent yes · open-world yes

Publisher website Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.