# Ephemeris Snapshots - Reference Integrity Map

> Ephemeris Snapshots - Reference Integrity Map is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.035245/call, status unknown (last checked 2026-10-20).

Checks parent existence and detects cycles within owner and subject relationships across supplied ephemeris snapshot records.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/celestial/ephemeris-snapshots/reference-integrity-map?utm_source=zero.xyz
- Price: $0.035245/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ephemeris-snapshots-reference-integrity-map-09b6fdb4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qeuHQXpeFtmjFYVomC7zS

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 ephemeris-snapshots-reference-integrity-map-09b6fdb4 -d '<json body>'
```

Example prompt: Check parent existence and cycle detection across these ephemeris snapshot rows — treat them as public data with non-personal metadata only, and give me a full reference integrity map showing any broken parent links or ownership cycles.

## When to prefer this

Choose this endpoint when you need to validate internal reference integrity (parent existence, ownership cycles) within a bounded set of ephemeris snapshot records you supply. It is appropriate for pre-ingestion audits, pipeline validation gates, or debugging cyclic dependencies in celestial data structures. It is explicitly a supplied-record analysis tool, not an independent certification authority — use it when you control the dataset and want targeted cycle and parent-existence checks rather than broad certification.

## Known failure modes

- Rows array exceeds 32-item limit — request rejected
- Rows array is empty (minItems:1 violated) — validation error
- dataClass value outside allowed enum (public, synthetic) — schema error
- nonpersonalMetadata not set to true (const:true violated) — request rejected
- Malformed row objects — parsing or validation failure
- Service unavailable or payment authorization failure via x402 protocol

## How this service works

Check parent existence and cycles within owner and subject Supplied-record analysis, not independent certification. Full contract at the free describe URL.

## Output

Returns a reference integrity map indicating which supplied ephemeris snapshot rows have valid parent records, which have missing or unresolvable parents, and which contain cycles in owner or subject relationship chains. Analysis is scoped to the supplied records only and does not constitute independent certification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "maxItems": 32,
   "minItems": 1
  },
  "dataClass": {
   "enum": [
    "public",
    "synthetic"
   ],
   "type": "string"
  },
  "nonpersonalMetadata": {
   "type": "boolean",
   "const": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ephemeris-snapshots-reference-integrity-map-09b6fdb4/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)