# Planetary Measurements - Revision Delta Map

> Planetary Measurements - Revision Delta Map is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.021331/call, status unknown (last checked 2026-10-16).

Enumerates owner, subject, revision, content, and scope pin changes between two supplied revisions of planetary measurement records, identified by stable record ID.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/celestial/planetary-measurements/revision-delta-map?utm_source=zero.xyz
- Price: $0.021331/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/planetary-measurements-revision-delta-map-0310a700
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q_cDm76Sq5utyQfwC4AUA

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 planetary-measurements-revision-delta-map-0310a700 -d '<json body>'
```

Example prompt: Compare my two snapshots of planetary measurement records — the before array has up to 32 records and the after array has up to 32 records — and enumerate all owner, subject, revision, content, and scope pin changes by stable record ID, using the public data class with nonpersonal metadata only.

## When to prefer this

Choose this endpoint when you need a field-level diff of planetary measurement records across two specific revision snapshots, identified by stable record ID, and you want to enumerate changes across owner, subject, revision, content, and scope pin dimensions simultaneously. Prefer it over general-purpose diff tools when working within the planetary measurements domain with caller-supplied (non-independently-certified) data and a need for structured, per-record change enumeration.

## Known failure modes

- Array exceeds 32 items — request rejected with validation error
- nonpersonalMetadata not set to true — request rejected
- Invalid dataClass value (must be 'public' or 'synthetic') — validation error
- Empty or mismatched record IDs between before/after arrays resulting in empty delta output
- Malformed record entries causing partial or failed comparison

## How this service works

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

## Output

Returns a structured delta map keyed by stable record ID, listing all detected changes between the before and after revision arrays across the dimensions of owner, subject, revision, content, and scope pins. Does not independently certify the data — analysis is based on caller-supplied 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/planetary-measurements-revision-delta-map-0310a700/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)