# Maha Strategies Materials Particle-Size Summary

> Maha Strategies Materials Particle-Size Summary is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.015001/call, status unknown (last checked 2026-10-21).

Summarizes supplied particle-size distributions (up to 128 data points) with number, mass, or volume weighting, returning statistical summaries and boundary arrays.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/micro/materials-particle-size-summary?utm_source=zero.xyz
- Price: $0.015001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/maha-strategies-materials-particle-size-summary-ef3d6152
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BqALRwk1fyheSEZnmIvyc

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 maha-strategies-materials-particle-size-summary-ef3d6152 -d '<json body>'
```

Example prompt: Summarize this particle-size distribution for me — I have 5 diameters in micrometers [1.2, 2.5, 5.0, 10.0, 20.0] with corresponding weights [100, 250, 400, 200, 50], using volume weighting on public data. Can you give me the statistical summary?

## When to prefer this

Use this endpoint when you need a fast, auditable statistical summary of a particle-size distribution with explicit weighting control (number, volume, or mass). It is purpose-built for metrology and materials characterization workflows, not toxicology or safety inference. Prefer it over general-purpose statistics services when you need PSD-specific boundary and percentile outputs with a traceable digest for scientific reproducibility.

## Known failure modes

- Mismatched array lengths between diametersMicrometers and weights — returns validation error
- Arrays exceeding 128 items — rejected by schema constraint
- Invalid weighting enum value (not number/volume/mass) — schema error
- Invalid dataClass value — schema error
- Missing required fields in body — 400-level error
- Non-positive or non-numeric diameter/weight values — may return computation error

## How this service works

Summarize supplied particle-size distributions while preserving number, mass or volume weighting. For metrology-data analysis; no toxicology or safety inference.

## Output

Returns a structured summary object containing weighted statistical descriptors of the particle-size distribution (e.g., mean, percentiles, mode), a boundaries array of up to 128 values, an offer ID confirming the service used, an input digest for traceability, and a receipt digest for payment verification.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "dataClass",
      "diametersMicrometers",
      "weights",
      "weighting"
     ],
     "properties": {
      "weights": {
       "type": "array",
       "maxItems": 128,
       "minItems": 1
      },
      "dataClass": {
       "enum": [
        "public",
        "synthetic"
       ],
       "type": "string"
      },
      "weighting": {
       "enum": [
        "number",
        "volume",
        "mass"
       ],
       "type": "string"
      },
      "diametersMicrometers": {
       "type": "array",
       "maxItems": 128,
       "minItems": 1
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "version",
      "offerId",
      "amountBaseUnits",
      "inputDigest",
      "result",
      "boundaries",
      "receiptDigest"
     ],
     "properties": {
      "result": {
       "type": "object"
      },
      "offerId": {
       "enum": [
        "materials-particle-size-summary"
       ],
       "type": "string"
      },
      "version": {
       "enum": [
        "maha-microproducts/0.1"
       ],
       "type": "string"
      },
      "boundaries": {
       "type": "array",
       "maxItems": 128,
       "minItems": 0
      },
      "inputDigest": {
       "type": "string",
       "maxLength": 71
      },
      "receiptDigest": {
       "type": "string",
       "maxLength": 71
      },
      "amountBaseUnits": {
       "enum": [
        "15001"
       ],
       "type": "string"
      }
     },
     "additionalProperties": false
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/maha-strategies-materials-particle-size-summary-ef3d6152/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.mahastrategies.com](https://www.zero.xyz/host/www.mahastrategies.com/llms.txt)