# Sky Observations - Condition Coverage Map

> Sky Observations - Condition Coverage Map is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.035234/call, status unknown (last checked 2026-11-04).

Computes the union of up to 32 declared half-open exposure intervals within a requested time window, returning a coverage map for sky observation conditions anchored to a specific frame, epoch, observer, and clock reference.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/celestial/sky-observations/condition-coverage-map?utm_source=zero.xyz
- Price: $0.035234/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-04
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sky-observations-condition-coverage-map-74f7e72f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iOUZaZNAvDdWg9iZePlHx

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 sky-observations-condition-coverage-map-74f7e72f -d '<json body>'
```

Example prompt: Can you compute the sky observation condition coverage for my dataset 'survey-alpha-2024', using epoch 'J2000' and clock 'UTC', over the window from 3600000ms to 72000000ms, with a minimum coverage threshold of 950000 ppm, for 5 public-class exposures I'll supply, anchored to coordinate frame 'ICRS' and observer config digest 'abc123'?

## When to prefer this

Choose this endpoint when you need to compute the precise union of declared sky observation exposure intervals within a bounded time window and obtain a condition coverage map tied to specific astronomical reference frames, epochs, and clock systems. Prefer it over generic interval-union utilities when your use case involves celestial observation metadata (coordinate frames, epochs, observer configs) and you need coverage expressed in parts-per-million against a threshold. Not suitable for independent certification of observations — it analyzes supplied records only.

## Known failure modes

- More than 32 exposures submitted — API enforces maxItems:32
- windowStartMs or windowEndMs outside valid range 0–86400000
- Invalid or unresolvable clockRef, epochRef, coordinateFrameRef, or observerConfigDigest
- nonpersonalMetadata not set to true (required constant)
- dataClass value not in allowed enum ['public','synthetic']
- minimumCoveragePpm outside 0–1000000 range
- Payment failure or insufficient USDC balance for x402 protocol
- Malformed or missing required digest fields returning validation errors

## How this service works

Compute the union of at most 32 declared half-open exposure intervals inside one requested window, with exact frame/epoch/observer/clock Supplied-record analysis, not independent certification. Full contract at the free describe URL.

## Output

Returns a coverage map representing the union of all declared half-open exposure intervals within the requested window, including coverage metrics (likely in parts-per-million), interval boundaries, and metadata anchored to the specified frame, epoch, observer, and clock. Analysis is based on supplied records and is not independently certified.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "clockRef": {
   "type": "string"
  },
  "epochRef": {
   "type": "string"
  },
  "dataClass": {
   "enum": [
    "public",
    "synthetic"
   ],
   "type": "string"
  },
  "exposures": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "datasetRef": {
   "type": "string"
  },
  "windowEndMs": {
   "type": "integer",
   "maximum": 86400000,
   "minimum": 0
  },
  "methodDigest": {
   "type": "string"
  },
  "windowStartMs": {
   "type": "integer",
   "maximum": 86400000,
   "minimum": 0
  },
  "observationRef": {
   "type": "string"
  },
  "recordRevision": {
   "type": "string"
  },
  "coordinateFrameRef": {
   "type": "string"
  },
  "minimumCoveragePpm": {
   "type": "integer",
   "maximum": 1000000,
   "minimum": 0
  },
  "nonpersonalMetadata": {
   "type": "boolean",
   "const": true
  },
  "observerConfigDigest": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sky-observations-condition-coverage-map-74f7e72f/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)