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Messe Atlas

by messeatlas.com · remote · no sign-in to list tools · v2.4.0 · published by com.messeatlas

MICE data for AI agents: trade shows, exhibitors, organizers, venues, halls, subsidies. Asia-first.

Deletes · 1Final · 1Changes · 6

27 tools: 1 can delete or cancel things, 1 do something that can't be undone, 6 change things and 19 only read.

Scanned Oct 21, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http atlas https://messeatlas.com/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • The server marks "upcoming_events" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "export_list" as not read-only (readOnlyHint: false), and its words say it reads.

    Matched text

    annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}; The name "export_list" says "list": a word for reading.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

27 tools

Deletes or cancels 1Claude Code: deny
  • unwatchRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Stop watching
    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: false
Can't be undone 1Claude Code: ask
  • upcoming_eventsTrade-show and exhibition editions starting in a date window, soonest first, optionally filtered by country, vertical or venue.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "upcoming_events" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Trade-show and exhibition editions starting in a date window, soonest first, optionally filtered by country, vertical or venue. Each row has event, dates, city, country, venue, organizer, source_url and as_of. Use this for 'what shows are on in …' questions; pass `cursor` from the previous answer for the next page.

    Annotations the server declares

    • title: Upcoming trade shows
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Changes things 6Claude Code: ask
  • check_floorplanRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    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: [x,y], b: [x,y]}], stands: [{id, x, y, w, d, door_side?: n|e|s|w}] (x, y = the stand's north-west corner), features?: [{id, x, y, w, d}], peak_people} or the full L2 plan dict (hall|site, exits, units, solids, keep, fire, peak). `space_id` (from get_venue_spaces) supplies the hall only when Atlas holds its outline; otherwise send the hall inline. Returns ok, every check with rule, value, limit and source, a summary (stands, m² sold, gangway m², ratio), limits_status, a preview_url (SVG, 24 hours) and a disclaimer. Convex polygons only; at most 2,000 objects and 160,000 m². Free accounts get 3 successful checks a month, Pro 30, Team and Enterprise unlimited; invalid plans are not counted.

    Annotations the server declares

    • title: Check a floor plan
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • country_totalsRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Country totals
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • exhibitor_historyRequires a Pro plan.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Company exhibitor history
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • export_listRequires a Pro plan.1 finding

    Why it is in this group

    • The name "export_list" says "list": a word for reading.
    • The server marks it as not read-only (readOnlyHint: false).

    Findings

    • Warn

      The server marks "export_list" as not read-only (readOnlyHint: false), and its words say it reads.

      Matched text

      annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}; The name "export_list" says "list": a word for reading.

      What this check looks for
    Description, as the server wrote it
    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 export allowance; the answer shows what is left. Needs the 'atlas.reveal' permission and a personal connection.

    Annotations the server declares

    • title: Export a list as CSV
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: false
  • reveal_contactRequires a Pro plan.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Requires a Pro plan. Reveals the business email and phone of one public speaker (person_id or slug from search_speakers / get_speaker), with provenance (source, as_of). Uses 1 reveal credit when an email or phone is returned; re-viewing a contact your workspace already revealed is free, and refusals (opted out, restricted, unavailable, nothing on file) cost nothing. Needs the 'atlas.reveal' permission and the workspace's one-time acceptance of the Messe Atlas data terms; reveals are capped per day by plan. Use contacts for business-to-business outreach only.

    Annotations the server declares

    • title: Reveal a speaker's contact
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • watchRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Watch an event, company or market
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 19Claude Code: allow
  • find_prospectsRequires a Pro plan.No findings

    Why it is in this group

    • The name "find_prospects" says "find": a word for reading.
    Description, as the server wrote it
    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`.

    Annotations the server declares

    • title: Find prospects
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • find_subsidiesRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "find_subsidies" says "find": a word for reading.
    Description, as the server wrote it
    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 and deadlines with the body.

    Annotations the server declares

    • title: MICE subsidies
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_companyRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "get_company" says "get": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Get company
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_eventOne event series by slug or uuid with organizer, venue, tags and every edition (ids, dates, exhibitor / sponsor / speaker / country counts).No findings

    Why it is in this group

    • The name "get_event" says "get": a word for reading.
    Description, as the server wrote it
    One event series by slug or uuid with organizer, venue, tags and every edition (ids, dates, exhibitor / sponsor / speaker / country counts). Use an edition id with list_edition_exhibitors.

    Annotations the server declares

    • title: Get trade show
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_organizerRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "get_organizer" says "get": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Get organizer
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_speakerRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "get_speaker" says "get": a word for reading.
    Description, as the server wrote it
    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).

    Annotations the server declares

    • title: Get speaker
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_venueRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "get_venue" says "get": a word for reading.
    Description, as the server wrote it
    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).

    Annotations the server declares

    • title: Get venue
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_venue_spacesRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "get_venue_spaces" says "get": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Venue halls and rooms
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_edition_exhibitorsRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "list_edition_exhibitors" says "list": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: List exhibitors at an edition
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_edition_sponsorsRequires a Pro plan.No findings

    Why it is in this group

    • The name "list_edition_sponsors" says "list": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: List sponsors at an edition
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_leaderboardsRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "list_leaderboards" says "list": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Leaderboards
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_watchesRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "list_watches" says "list": a word for reading.
    Description, as the server wrote it
    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).

    Annotations the server declares

    • title: List watches
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_companiesRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "search_companies" says "search": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Search companies
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_eventsSearch event series by name, country or vertical.No findings

    Why it is in this group

    • The name "search_events" says "search": a word for reading.
    Description, as the server wrote it
    Search event series by name, country or vertical. Each row carries edition count, last and next start dates and the largest captured exhibitor count.

    Annotations the server declares

    • title: Search trade shows
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_organizersRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "search_organizers" says "search": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Search organizers
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_speakersRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "search_speakers" says "search": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Search speakers
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_venue_spacesRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "search_venue_spaces" says "search": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Find halls that fit
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • search_venuesRequires a free Messe Atlas account (sign in when prompted).No findings

    Why it is in this group

    • The name "search_venues" says "search": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • title: Search venues
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 2.4.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http atlas https://messeatlas.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__atlas__search_companies",
      "mcp__atlas__get_company",
      "mcp__atlas__search_events",
      "mcp__atlas__get_event",
      "mcp__atlas__list_edition_exhibitors",
      "mcp__atlas__search_speakers",
      "mcp__atlas__get_speaker",
      "mcp__atlas__search_venues",
      "mcp__atlas__search_organizers",
      "mcp__atlas__get_organizer",
      "mcp__atlas__get_venue",
      "mcp__atlas__list_leaderboards",
      "mcp__atlas__semantic_search",
      "mcp__atlas__get_venue_spaces",
      "mcp__atlas__search_venue_spaces",
      "mcp__atlas__find_subsidies",
      "mcp__atlas__list_edition_sponsors",
      "mcp__atlas__find_prospects",
      "mcp__atlas__list_watches"
    ],
    "ask": [
      "mcp__atlas__upcoming_events",
      "mcp__atlas__country_totals",
      "mcp__atlas__check_floorplan",
      "mcp__atlas__exhibitor_history",
      "mcp__atlas__reveal_contact",
      "mcp__atlas__export_list",
      "mcp__atlas__watch"
    ],
    "deny": [
      "mcp__atlas__unwatch"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as atlas. Review it before you use it.