
Extrabold Tools MCP server
Which servers in the official MCP registry are Extrabold Tools's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.
read 2026-10-18
- Registry nametools.extrabold/gridfinityverified in the MCP registry
The registry name sits under extrabold.tools. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.
- Stateanswerschecked 2026-10-18
- Tools7
- Server calls itselfextrabold-tools
- Server version0.1.0
- Protocol version2025-06-18
On 2026-10-18 the server answered initialize and tools/list without a sign-in. First answer in 127 ms.
- Whether its tools do the product's job has not been judged yet.
Once connected
- Parameters are untyped or undescribed in 7 of 7 tools: check arguments before calling.
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.
- INITE MCP score91 of 100answers 100 · definitions 83 · context 82
- Answered100% of days8 of 8 daily checks
- Median first answer174 ms
- Space in an agent's context≈ 5,797 tokensthe definitions of all its tools (7), which an agent carries on every turn
- Tool definitionsB · 83 of 100
- Typed results0 of 7 toolsdeclared outputSchema: results come typed, read once
- Parameters without a description: in 7 of 7
What an agent can do with it
- not sure · create custom 3D printable designs in the browser
- not sure · design printable objects without prior modelling experience
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 (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). 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 →
find_gridfinity_printersLook up a named 3D printer in the Extrabold Tools catalog. Returns exact model IDs and printerBuildVolume objects ready for generation tools. Ask the user to choose when several models match.
find_gridfinity_drawer_presetsFind usable Extrabold Tools drawer presets and exact Eurobox or KLT models by product name, brand, product line, dimensions, or article number.
generate_gridfinity_baseplateConfigure a Gridfinity baseplate from exact width and depth in millimeters, without a drawer preset. Returns the full-unit grid, leftover margins, printer fit, warnings, and a website URL. Supply printerBuildVolume from…
generate_gridfinity_drawer_baseplateGenerate a Gridfinity baseplate sized to a known drawer preset. Supply measured drawer dimensions when available and the printer build volume; the tool automatically enables build-plate splitting when the baseplate does not fit.
get_gridfinity_grid_questionsReturn the next Gridfinity baseplate configuration questions to ask, using Extrabold Tools setting descriptions and dependencies.
generate_gridfinity_gridGenerate a Gridfinity baseplate grid by columns and rows, returning the calculated millimeter dimensions and a shareable Extrabold Tools URL.
create_gridfinity_baseplate_urlCreate a shareable Extrabold Tools Gridfinity baseplate URL from exact baseplate settings. Use generate_gridfinity_grid when the user asks for a grid by rows and columns.
How to connect
Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:
{
"mcpServers": {
"gridfinity": {
"type": "http",
"url": "https://mcp.extrabold.tools/mcp"
}
}
}Add it
Claude Code, in a terminal
claude mcp add --transport http extrabold https://mcp.extrabold.tools/mcpclaude.ai, ChatGPT and other clients: add https://mcp.extrabold.tools/mcp as a custom connector in the settings.
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.
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