Steel Tools is listed as active in the registry but did not answer our last check. It exposes 14 tools.
Steel takeoff, weight and gauge calculators plus RFQ, RFI, NCR and Bluebeam markup generators.
Uptime history
42 days of history · worst day 0%
42 days agonow
2.2%
Uptime 24h
2 of 91 checks
14
Tools
read from the server
566 ms
Response time
average over 24h
open, no key
Access
streamable-http
What changed 11
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 12 August 2026. No other catalogue keeps this.
15 Aug
4 tools appeared
steel_coating_area, steel_ncr_generate, steel_rfi_generate and 1 more
15 Aug
a tool changed version2 times that day
12 Aug
3 tools appeared
steel_pdf_markup, steel_rfq_generate, steel_section_weight
12 Aug
a tool changed version2 times that day
and 2 more, back to 12 August 2026
Steel Tools does not always answer
Over the last week it answered 3.9% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.
run in your terminal
claude mcp add steel-tools --transport http https://www.structupath.ai/api/mcp~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"steel-tools": {
"url": "https://www.structupath.ai/api/mcp"
}
}
}~/.codex/config.toml
[mcp_servers.steel-tools]
url = "https://www.structupath.ai/api/mcp".cursor/mcp.json
{
"mcpServers": {
"steel-tools": {
"url": "https://www.structupath.ai/api/mcp"
}
}
}.vscode/mcp.json
{
"mcpServers": {
"steel-tools": {
"url": "https://www.structupath.ai/api/mcp"
}
}
}Available tools 14
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
steel
steel_bolt_pretension
RCSC minimum pretension for A325/A490 structural bolts by diameter, with the turn-of-the-nut rotation when a bolt length is given. Published nominal values for estimating and orientation, not design guidance.
steel_coating_area
Surface area to coat for an AISC shape: ft² per foot from the cross-section perimeter, piece/lot area with length and qty, optional interior faces for galvanized tubes and gallons at a supplied coverage rate. Published nominal values for estimating and orientation, not design guidance.
steel_connection_reference
Describe a structural steel connection type (behaviour, use, what goes wrong) by name, alias or slug — or look up a structural bolt grade (A325, A490, A307). Published nominal values for estimating and orientation, not design guidance.
steel_gauge_thickness
Look up sheet steel gauge thickness (gauges 3-28) in inches and mm with lb/ft², for plain, galvanized or stainless series. Published nominal values for estimating and orientation, not design guidance.
steel_mtr_check
Screen a mill cert's yield and tensile against the specified limits for A992, A572 Gr. 50 or A36 — a screening aid, not acceptance. Published nominal values for estimating and orientation, not design guidance.
steel_ncr_generate
Generate a formal Nonconformance Report PDF: identification, description, the violated requirement, containment, root cause (prose or 5-Whys chain), disposition (accept-as-is/repair/rework/reject) with actions, and blank quality-review and sign-off blocks. Flags accept-as-is dispositions whose corrective action describes physical work. The disposition decision belongs to the responsible quality authority. Returns a download link that expires within ~48 hours. Nothing you submit is stored.
steel_pdf_markup
Add real Bluebeam-compatible annotation objects to a drawing PDF — counts, length/area measurements with live scales, RFI clouds, callouts — from a markups JSON you supply plus placement coordinates. Pass the PDF as an https URL or small base64; returns a marked PDF download link that expires within ~48 hours. Markups appear in Bluebeam Revu's Markups List. You decide placement; the tool guarantees the format. Nothing you submit is stored.
steel_pipe_schedule
Steel pipe dimensions by NPS and schedule: OD, wall, inside diameter and lb/ft for schedules 5, 10, 40/STD, 80/XS, 160 and XXS. Omit the schedule to list them all. Published nominal values for estimating and orientation, not design guidance.
steel_plate_weight
Compute carbon steel plate weight from thickness (decimal or fraction) and width/length in inches, with optional material cost via price_per_lb. Published nominal values for estimating and orientation, not design guidance.
steel_rfi_generate
Generate a formal Request for Information PDF from structured fields — header, meta grid, subject, description, proposed solution, attachments, and a blank response block for the design team. You do the judgement (one issue per RFI, exact drawing references, a proposed path forward); the tool guarantees the format. Returns a download link that expires within ~48 hours. Nothing you submit is stored.
steel_rfq_generate
Generate a vendor-ready Request for Quotation (.xlsx) from structured takeoff line items — grouped by material, with vendor pricing columns, totals and standard terms. You pass parsed line items and a company name; returns a download link that expires within ~48 hours. Nothing you submit is stored.
steel_section_weight
Weight of round bar, square bar, flat bar or round tube from dimensions in inches — lb/ft and optional piece weight, in carbon, stainless or aluminum. For AISC designations use steel_shape_weight; for plate use steel_plate_weight. Published nominal values for estimating and orientation, not design guidance.
steel_shape_weight
Look up an AISC shape designation (W, C, MC, L, HSS, PIPE) for lb/ft, depth and area, with optional piece weight. 14th-Edition-era data. Published nominal values for estimating and orientation, not design guidance.
steel_takeoff_weight
Roll a member list (AISC designation, length in feet, piece count — up to 500 lines) into a bill-of-steel ledger: weight per line, total pounds and tons, piece and lineal-foot counts. Net weight only; unmatched designations are listed, not guessed. Published nominal values for estimating and orientation, not design guidance.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://www.structupath.ai/api/mcp | streamable-http | answering | 114 ms | 4 min ago |
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Steel Tools — questions
Answers built from our own checks of this server.
What can Steel Tools do?
It exposes 14 tools, read directly from the server on our last check. Among them: steel_bolt_pretension, steel_coating_area, steel_connection_reference, steel_gauge_thickness, steel_mtr_check, steel_ncr_generate and 8 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
Is Steel Tools working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 2 of 91 checks got a reply (2.2%), average response time 566 ms. The bar chart above shows every period we have measured.
The registry lists Steel Tools as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Steel Tools?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Steel Tools need an API key?
No. Steel Tools completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 14 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Steel Tools?
It answers our handshake in 566 ms on average, which is faster than 26% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.