steel MCP server

None of its 7 tools are described as changing anything. For 7 the reading was uncertain, so no mark is shown.

• about_structomat

  “Facts about Structomat, an AI engineering agent for structural steel: what it does, design codes, who signs designs for construction, what to send, what comes back, how to start.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  Takes no inputs.

• list_serviceson 194 other servers

  “Structomat services (analysis & design, connection design, shop drawings, erectability check of a steel model before erection, automation consulting, custom tools) with what the client sends and what…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  1 input

  • servicestring“Optional: one service only.”
• find_exampleson 4 other servers

  “Search Structomat's published work: steel projects, case studies, example situations, checked steel connections, measured benchmarks (e.g.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  3 inputs

  • querystring“What to look for, e.g.”
  • typestring“Optional filter.”
  • limitinteger“Default 8.”
• get_connectionon 6 other servers

  “Details of one connection from the Structomat steel connection library: members, plates, bolts, welds, design code and the utilisation of each component.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  1 input, 1 required

  • slugstringrequired“Connection slug from find_examples.”
• estimate_portal_frame_steel

  “Steel tonnage estimate for a single-span pitched portal frame building (span 15-30 m) before any design: total tonnes, kg per m2 of floor, a range, the weight by part (frames, gable posts, bracing, e…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  5 inputs, 4 required

  • span_mnumberrequired“Clear span of the frames, m (15-30).”
  • length_mnumberrequired“Building length, m.”
  • eave_height_mnumberrequired“Eave height, m (5-11).”
  • ground_snow_kN_m2numberrequired“Characteristic ground snow load sk, kN/m2 (0.5-2.0).”
  • bracingstring“Optional: tube (default, tension and compression) or tension-only rods.”
• analyze_frame

  “Runs a 3D finite-element frame analysis and returns the numbers: equilibrium check, largest deflection along the members, largest joint displacement and sway in X and Y, every support reaction, the a…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  30 inputs

  • templatestring“portal = pitched portal frame building; mono = open mono-pitch canopy; storey = multi-storey frame.”
  • low_height_mnumber“mono: height of the low side, m.”
  • high_height_mnumber“mono: height of the high side, m.”
  • span_mnumber“portal (4-60) or mono (3-30): frame span, m.”
  • eave_height_mnumber“portal: eave height, m.”
  • ridge_rise_mnumber“portal: ridge rise above eave, m.”
  • framesinteger“portal, mono: number of frames.”
  • frame_spacing_mnumber“portal, mono: frame spacing, m.”
  • bays_xinteger“storey: bays in X.”
  • bays_zinteger“storey: bays in Y (the second horizontal direction; Z is vertical).”
  • storeysinteger“storey: number of storeys.”
  • bay_x_mnumber“storey: bay width in X, m.”
  • bay_z_mnumber“storey: bay width in Y, m.”
  • storey_height_mnumber“storey: storey height, m.”
  • basesstring“Column bases (default fixed).”
  • column_sectionstring“Hot-rolled I-section for columns.”
  • beam_sectionstring“Hot-rolled I-section for beams / rafters.”
  • brace_sectionstring“portal, mono: hollow section for the bracing (default CHS 139.7x5).”
  • column_webstring“Direction of the column webs: x (default) = strong axis resists sway in X, the frame direction; y = strong axis resists sway in Y.”
  • wind_directionstring“portal, storey: x (default) = wind on the long wall / the face at X = 0; y = wind on the gable / the face at Y = 0; xy = both together in the same combination …”
  • combination_setstring“single (default) = one combination with the factors given; en = a typical EN 1990 ultimate set (expression 6.10); asce = ASCE 7 LRFD basic combinations.”
  • modalboolean“Also run a modal analysis: natural periods, mode shapes and mass participation (default true).”
  • modal_live_sharenumber“Share of the live or snow load in the modal mass, psi (default 0.3); mass = self-weight + dead + psi x live.”
  • dead_kN_m2number“Dead load on roof/floor, kN/m2 (self-weight of members is added).”
  • live_kN_m2number“Live or snow load, kN/m2.”

  and 5 more not listed here.

• draft_project_request

  “Prepare an e-mail to Structomat (info@structomat.com) describing a project, ready for the user to review and send.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  5 inputs, 1 required

  • needstringrequired“What the user needs, e.g.”
  • structure_typestring“Optional: canopy, mezzanine, warehouse, stair, connection, ...”
  • design_codestring“Optional: Eurocode, AISC 360 or the code the project requires.”
  • available_filesstring“Optional: drawings, photos, IFC or analysis model the user can send.”
  • deadlinestring“Optional.”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-30.

The registry checks an entry when it is published (each new version), and nothing re-checks it on a schedule. A difference below is about the listing, not a judgement of the publisher.