# Machining & Fasteners Calc – Milling Feed Rate / Chip Load

> Machining & Fasteners Calc – Milling Feed Rate / Chip Load is a paid API for AI agents from machining-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).

Calculates milling table feed rate from spindle RPM, number of flutes, and chip load per tooth — or back-calculates chip load from a given feed rate.

## Facts

- Endpoint: GET https://machining-calc.x402tookit.com/feed-rate?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/machining-fasteners-calc-milling-feed-rate-chip-load-b5af0f87
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OOXPjLgECce30AdZOMtY8

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability machining-fasteners-calc-milling-feed-rate-chip-load-b5af0f87
```

Example prompt: Calculate the milling table feed rate for a 4-flute end mill running at 3000 RPM with a chip load of 0.004 inches per tooth, using imperial units.

## When to prefer this

Use this endpoint when you need a fast, paid, structured computation of milling feed rate or chip load without building the formula yourself. Prefer it over manual calculation when integrating machining parameter checks into a CNC programming agent, a manufacturing assistant, or an automated toolpath validation workflow. It supports both imperial and metric unit systems and handles both the forward (chip load → feed) and reverse (feed → chip load) calculations in a single endpoint.

## Known failure modes

- Missing required rpm or flutes parameters returns an error
- Neither chipLoad nor feed provided — API cannot determine which direction to calculate
- Invalid flutes value (outside 1–40 range) may produce an error or unexpected result
- Non-numeric values for rpm, feed, or chipLoad cause schema validation failure
- Unknown units string defaults to imperial or may return an error

## How this service works

Milling table feed from rpm, flutes and chip load, or the chip load a given feed produces.

## Output

Returns the computed table feed rate (in inch/min or mm/min depending on units) or chip load per tooth, along with the input echo (RPM, flutes, units), a plain-language summary, any applicable disclaimer, and optional degraded/reasons fields if the calculation had caveats.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "rpm",
      "flutes"
     ],
     "properties": {
      "rpm": {
       "type": "number",
       "description": "Spindle rpm"
      },
      "feed": {
       "type": "number",
       "description": "Table feed, inch/min or mm/min, to get the chip load instead"
      },
      "units": {
       "type": "string",
       "description": "imperial (default) or metric"
      },
      "flutes": {
       "type": "integer",
       "description": "Number of cutting flutes or inserts, 1 to 40"
      },
      "chipLoad": {
       "type": "number",
       "description": "Chip load per tooth, inch (imperial) or mm (metric); send this or feed"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "rpm": {
       "type": [
        "null",
        "number"
       ]
      },
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "feed": {
       "type": [
        "null",
        "number"
       ]
      },
      "units": {
       "type": [
        "null",
        "string"
       ]
      },
      "flutes": {
       "type": [
        "null",
        "number"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "chipLoad": {
       "type": [
        "null",
        "number"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
     
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/machining-fasteners-calc-milling-feed-rate-chip-load-b5af0f87/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from machining-calc.x402tookit.com](https://www.zero.xyz/host/machining-calc.x402tookit.com/llms.txt)