Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Added "check_floorplan", "country_totals", "exhibitor_history" and 20 more (3 tools before, 26 now)
Check a floor plan — Requires a free Messe Atlas account (sign in when prompted). Checks an exhibition floor plan against published default safety and layout limits — no AI, deterministic: stand overlaps, keep-clear gangways, fire-point halos, 4 m entrance strips, rows ≤ 30 m, gangways ≥ 3 m, travel distance ≤ 61 m, dead ends ≤ 18 m, stand area ≤ 2 × gangway area, exit width at 5 mm per person, gate lines, power pits. Coordinates in metres, origin at the hall's north-west corner, x east, y south. `plan` is either the short form {hall: {w, l} (or space_id), exits: [{id, kind: public|fire|folding|service|open, a: […
Country totals — Requires a free Messe Atlas account (sign in when prompted). Without `country`: the top 20 countries by events. With `country`: events, editions, organizers, venues, companies and speakers counted for that country.
Company exhibitor history — Requires a Pro plan. Every edition one company exhibited at or sponsored, newest first (20 per page): event, year, dates, city, country, tier, booths and the edition's `as_of`. Filter by role and year range; pass `cursor` from the previous answer for the next page. `history_truncated` is set for very large histories.
Export a list as CSV — Requires a Pro plan. Writes a CSV to your workspace's exports and returns a download link that works for 24 hours without signing in. Sources: `edition_exhibitors` (an edition's exhibitors, 1,000 rows per part; pass `next_cursor` back as `cursor` for the next part), `edition_sponsors` (up to 200), `prospects` (the find_prospects arguments, up to 1,000 companies), and `reveals` (Team plan and up: the people your workspace revealed, with the email and phone it revealed, 500 per part; not offered when the workspace keeps contacts out of AI conversations). Rows count against your plan's daily exp…
Find prospects — Requires a Pro plan. Prospect lists: companies at any `include` edition and at none of the `exclude` editions ("at A or B, not at C"), most editions attended first, then most recent (20 per page). A side is an event (slug or uuid, optional `years`; default its latest 5 past editions) or an `edition_id`; at most 5 editions per side; oversized editions are refused as too_broad. Optional HQ `country` and `role`. Returns company, hits, last edition and url, `total_about`, and `editions_used` with each edition's `as_of`.
MICE subsidies — Requires a free Messe Atlas account (sign in when prompted). Convention-bureau and tourism-board support schemes for an exhibition, conference, meeting or incentive (optionally in one country). Each active scheme is screened against its published criteria: `match` is `likely` (every published criterion supplied and met) or `check` (something is unknown, late or stale), with the reasons; schemes that do not appear to fit are listed under `not_matched` with the reason. Returns benefits and amounts as published, `url`, `apply_url`, `as_of` and `stale`. Not advice: confirm eligibility, amounts an…
Get company — Requires a free Messe Atlas account (sign in when prompted). One company by slug or uuid: description, tags, parent, subsidiaries, sponsorships, total editions, last seen date.
Get organizer — Requires a free Messe Atlas account (sign in when prompted). One organizer by slug or uuid with description, parent company and its top event series.
Get speaker — Requires a free Messe Atlas account (sign in when prompted). One speaker by slug or uuid with bio and the sessions they spoke at (event, edition, year, session title).
Get venue — Requires a free Messe Atlas account (sign in when prompted). One venue by slug or uuid with city, website, the event series it hosts and its upcoming editions (next 20).
Venue halls and rooms — Requires a free Messe Atlas account (sign in when prompted). The halls and rooms of one venue (slug or uuid from search_venues): kind, level, area m², width, length, clear height, floor load, column-free, capacities (theatre, classroom, banquet, cocktail, 3×3 booths), doors, utilities, notes, and each row's `source_url` and `as_of` (`stale` when older than 180 days). A null figure is not published by the venue. Drawings are not served; `geometry_status` says whether Atlas holds an outline.
List exhibitors at an edition — Requires a free Messe Atlas account (sign in when prompted). Exhibitors at one edition (20 per page): exhibitor name, booth, pavilion country, tier and the matched canonical company when known. Free accounts see the first 20 rows plus how many more exist.
List sponsors at an edition — Requires a Pro plan. Sponsors of one edition (20 per page, up to 200, highest tier first): company, public tier label, HQ country and url, with the edition's `as_of` (sponsor lists refresh at the full publish). Takes an edition id from get_event.
Leaderboards — Requires a free Messe Atlas account (sign in when prompted). Without `kind`: the leaderboard kinds available. With `kind`: the ranked rows (rank, name, value, slug) for that board.
List watches — Requires a free Messe Atlas account (sign in when prompted). Your workspace's "AI watches": what is watched (type, id, name), how many of your plan's watches are used, the next digest date and the alert channels (email digest; webhooks on the Team plan and up).
Search companies — Requires a free Messe Atlas account (sign in when prompted). Search canonical companies by name (full-text, best 200 matches), optionally filtered by HQ country. Without q: most active first (large countries continue A–Z after two pages; each answer says its `order` and `max_page`). Returns id, slug, name, kind, domain, HQ, industry, size band and editions in the last five years.
Search organizers — Requires a free Messe Atlas account (sign in when prompted). Event organizers by name and/or country with the number of event series they run.
Search speakers — Requires a free Messe Atlas account (sign in when prompted). People on the public record as speakers, by name prefix (≥ 2 letters) and/or country. Never returns email or phone.
Find halls that fit — Requires a free Messe Atlas account (sign in when prompted). Halls and rooms in a country that meet a size: optional city, minimum area (m²), minimum clear height (m) and a minimum capacity of one kind (theatre, classroom, banquet, cocktail, booths_3x3). Best fit first (the smallest published area that meets the filters), 20 per page with `next_cursor`. Each row has the venue, the fit reasons, `waste_pct`, `source_url`, `as_of` and `stale`. Spaces that do not publish a filtered figure are left out.
Search venues — Requires a free Messe Atlas account (sign in when prompted). Venues by name prefix and/or country, most event series hosted first, with the number of series each hosts. `q` matches the start of the venue name ("impact", "marina bay", "bitec"), case-insensitive.
Search by meaning — Requires a free Messe Atlas account (sign in when prompted). Search companies and events by meaning rather than keywords ("flame-retardant composites suppliers", "cannabis trade shows in Asia"). Returns the closest matches with a similarity score. Use search_* for exact names.
Stop watching — Requires a free Messe Atlas account (sign in when prompted). Removes one item from your workspace's "AI watches" (entity_type and id as list_watches shows them). Removing something not watched changes nothing. Needs the 'atlas.reveal' permission.
Watch an event, company or market — Requires a free Messe Atlas account (sign in when prompted). Adds an event, edition, company, organizer, country (ISO code) or vertical (slug) to your workspace's "AI watches" list. Changes (new editions, new exhibitors or sponsors, speakers announced, score changes) arrive in the weekly email digest, and as signed webhooks on the Team plan and up. Watching the same thing twice changes nothing. Free plans watch 1 item, Pro 100, Team and Enterprise 500. Needs the 'atlas.reveal' permission.
Certificate recorded, valid to 2026-12-23
Authorization not required
Unknown → Live
First tool surface recorded: 3 tools (server version 2.1.0)
https://messeatlas.com/mcp (mcp_streamable_http) — from mcp_registry, with the record
Showing the latest 6 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed