# Optical Measurements - Revision Delta Map

> Optical Measurements - Revision Delta Map is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.021323/call, status unknown (last checked 2026-10-16).

Enumerates field-level differences (owner, subject, revision, content, scope pin changes) between two revisions of optical geometry/calibration/lot/method-pinned supplied records by stable record ID.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/compute/optical-measurements/revision-delta-map?utm_source=zero.xyz
- Price: $0.021323/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/optical-measurements-revision-delta-map-a8c5286d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_g3XJKzQNTap1X72y3nuhS

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 optical-measurements-revision-delta-map-a8c5286d -d '<json body>'
```

Example prompt: Compare these two sets of optical calibration records — I have up to 32 records in the before state and 32 in the after state, both classified as synthetic data, and I want a full delta map showing every owner, subject, revision, content, and scope pin change between them.

## When to prefer this

Use this endpoint when you need a precise, field-level diff between two specific revisions of optical measurement records (geometry, calibration, lot, or method-pinned) identified by stable record IDs. Prefer this over generic diffing tools when your records are optical domain records with owner/subject/revision/content/scope pin structure, and when you are doing supplied-record analysis rather than seeking independent certification.

## Known failure modes

- Array exceeds 32 items — request rejected with validation error
- nonpersonalMetadata not set to true — request rejected
- dataClass not one of 'public' or 'synthetic' — schema validation failure
- Empty before and after arrays — may return empty delta with no changes
- Malformed record objects in arrays — parsing error or partial delta returned

## How this service works

Enumerate owner, subject, revision, content and scope pin changes by stable record ID in two supplied revisions for optical geometry/calibration/lot/method-pinned Supplied-record analysis, not independent certification. Full contract at the free describe URL.

## Output

A structured delta map enumerating field-level changes between the before and after record arrays, detailing which stable record IDs had changes across owner, subject, revision, content, and scope pin fields for optical geometry, calibration, lot, or method-pinned records.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "after": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "before": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "dataClass": {
   "enum": [
    "public",
    "synthetic"
   ],
   "type": "string"
  },
  "nonpersonalMetadata": {
   "type": "boolean",
   "const": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/optical-measurements-revision-delta-map-a8c5286d/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)