# Maha Strategies Chemistry Molecular Descriptor Pack

> Maha Strategies Chemistry Molecular Descriptor Pack is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.017001/call, status unknown (last checked 2026-10-21).

Calculates a bounded set of molecular descriptors from a SMILES string using a pinned cheminformatics toolkit version, for research dataset preparation.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/micro/chemistry-molecular-descriptor-pack?utm_source=zero.xyz
- Price: $0.017001/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-chemistry-molecular-descriptor-pack-0a6d79f8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hEZQ4QeKHuZ7n4N73OGQG

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-chemistry-molecular-descriptor-pack-0a6d79f8 -d '<json body>'
```

Example prompt: Calculate the molecular descriptors for aspirin — SMILES is CC(=O)Oc1ccccc1C(=O)O — using public data class, and give me the full descriptor results for my research dataset.

## When to prefer this

Choose this endpoint when you need a reproducible, versioned set of molecular descriptors computed from a SMILES string for research or ML dataset preparation, and reproducibility via a pinned toolkit version is important. It is especially suitable when you want an auditable result with input/receipt digests. It does not certify drug suitability or toxicity, so prefer specialized endpoints for regulatory or clinical applications.

## Known failure modes

- Invalid or unparseable SMILES string — returns an error indicating the molecule could not be interpreted
- SMILES string exceeds 512 character maximum — rejected at schema validation
- Missing required fields (smiles or dataClass) — schema validation error
- Unsupported dataClass value other than 'public' or 'synthetic' — enum validation failure
- Payment failure via x402 protocol — call not executed
- Descriptor computation boundary exceeded — some descriptors may be omitted and listed in the boundaries array

## How this service works

Calculate a bounded set of molecular descriptors using a pinned toolkit version. For research dataset preparation; descriptors do not certify drug suitability or toxicity.

## Output

Returns a JSON object containing the computed molecular descriptors as key-value pairs under 'result', the offer ID ('chemistry-molecular-descriptor-pack'), the toolkit version ('maha-microproducts/0.1'), a boundaries array listing any descriptor computation limits or warnings, an inputDigest for verifying the input, and a receiptDigest 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",
      "smiles"
     ],
     "properties": {
      "smiles": {
       "type": "string",
       "maxLength": 512,
       "minLength": 1
      },
      "dataClass": {
       "enum": [
        "public",
        "synthetic"
       ],
       "type": "string"
      }
     },
     "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": [
        "chemistry-molecular-descriptor-pack"
       ],
       "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": [
        "17001"
       ],
       "type": "string"
      }
     },
     "additionalProperties": false
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/maha-strategies-chemistry-molecular-descriptor-pack-0a6d79f8/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)