Math & Numbers
Calculate rebar spacing and bar count over a width b perpendicular to the bars. From spacing: n = floor(b/s)+1, bars per meter = 1000/s. From count: spacing s = b/(n−1). All lengths in mm.
Call this tool from your code in three languages.
curl -X POST 'http://127.0.0.1:3003/en/api/tools/rebar-spacing-calculator' \
-H 'Content-Type: application/json' \
-d '{"mode":"fromSpacing","b":1000,"s":200,"n":0,"decimalPlaces":2}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST http://127.0.0.1:3003/en/api/tools/rebar-spacing-calculator| Name | Type | Required | Description |
|---|---|---|---|
| mode | select | No | — |
| b | number | Yes | — |
| s | number | No | Used in 'Spacing → count' mode. |
| n | number | No | Used in 'Count → spacing' mode. Must be ≥ 2. |
| decimalPlaces | number | No | — |
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-rebar-spacing-calculator": {
"name": "rebar-spacing-calculator",
"description": "Calculate rebar spacing and bar count over a width b perpendicular to the bars. From spacing: n = floor(b/s)+1, bars per meter = 1000/s. From count: spacing s = b/(n−1). All lengths in mm.",
"baseUrl": "http://127.0.0.1:3003/mcp/sse?toolId=rebar-spacing-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "rebar-spacing-calculator",
"arguments": {
"mode": "fromSpacing",
"b": 1000,
"s": 200,
"n": 0,
"decimalPlaces": 2
}
}
}Questions or issues? Contact [email protected]
JSON result
{
"key": {...},
"metadata": {
"key": "value"
},
"error": "Error message (optional)",
"message": "Notification message (optional)"
}