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Fortitude21 MCP server

Which MCP servers are Fortitude21's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-20

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Whose server it is
  • Registry namecom.fortitude21/dangerous-goodsverified in the MCP registry

The registry name sits under fortitude21.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-20
  • Stateanswerschecked 2026-10-20
  • Tools6
  • Server calls itselffortitude21-dangerous-goods
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-20 the server answered initialize and tools/list without a sign-in. First answer in 25 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: choose a can by the liquid it carries; order own-brand cans with custom etching or colour; source matched closures and taps for each container.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 8, the first on 2026-10-20
  • INITE MCP score72 of 100answers 100 · does the job 0 · definitions 97 · context 100 · connects 100
  • What an agent can do with it0 of 3 use cases
  • Answered100% of days8 of 8 daily checks
  • Median first answer152 ms
  • Space in an agent's context≈ 1,490 tokensthe definitions of all its tools (6), which an agent carries on every turn
  • Tool definitionsA · 97 of 100
  • Typed results0 of 6 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 1 of 6

What an agent can do with it

  • cannot · choose a can by the liquid it carries
  • cannot · order own-brand cans with custom etching or colour
  • cannot · source matched closures and taps for each container

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers6 tools · read 2026-10-20
  • un_number_packaging

    Look up a dangerous goods UN number (or substance name) in ADR 2025 Table A and its packing instructions. Returns class, packing group, limited quantity, UN mark level and, for each container type (jerrican, drum, IBC, composite), the UN…

  • decode_un_packaging_mark

    Read a UN packaging mark part by part (packaging code, performance level, density or gross mass, test pressure, year, state, maker; IBC, large packaging, salvage and reconditioned marks too). Add a UN number to check whether the container…

  • ibc_inspection_dates

    Work out an IBC's next leakproofness test, 2.5-year and 5-year inspections, the last month it may be filled and (UN/ADR, plastic and composite IBCs) the end of its five-year life. Dates as MM/YYYY, "March 2024" or YYYY-MM.

  • adr_1000_points

    Total the ADR 1.1.3.6 points for a vehicle load and say whether it stays within the small-load exemption (1,000 points, or the quantity limit for one transport category), and what still applies. Covers 92 UN numbers. If any line cannot be…

  • bund_size

    Apply the secondary containment rule for a country or region to the containers stored together, and return the minimum sump capacity in litres, the rule that governs, and spill pallets that pass. Regions: England, Wales, Scotland…

  • jerry_can_quantity

    Work out how much water (people x days x litres a day, Sphere and national advice) or fuel (distance and consumption, or hours and consumption, or generator kVA) to hold, with a margin, and how many jerry cans that takes.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "dangerous-goods": {
      "type": "http",
      "url": "https://fortitude21.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http fortitude21 https://fortitude21.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://fortitude21.com/mcp as a custom connector in the settings.

OpenAPI spec

6 paths, read 2026-10-20. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.