# Quantum Circuit Records - Missingness Co-occurrence Counter

> Quantum Circuit Records - Missingness Co-occurrence Counter is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.02031/call, status unknown (last checked 2026-10-16).

Counts paired missing owner, revision, and content pins in quantum circuit register/operation-pin records without treating missing values as matches, using caller-supplied public or synthetic non-personal metadata.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/compute/quantum-circuit-records/missingness-cooccurrence?utm_source=zero.xyz
- Price: $0.02031/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantum-circuit-records-missingness-co-occurrence-counter-7e164f66
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ICFnToPfNT95xMu-dO5nK

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 quantum-circuit-records-missingness-co-occurrence-counter-7e164f66 -d '<json body>'
```

Example prompt: Can you check these 20 quantum circuit register records and count how many are simultaneously missing their owner, revision, or content pins — treat this as public, non-personal metadata and flag any co-occurring gaps?

## When to prefer this

Use this endpoint when you need to audit paired or co-occurring missingness in quantum circuit record pin fields (owner, revision, content) without risk of false matches from null/missing values. Prefer this over general null-checking tools when working specifically with bounded backend circuit register or operation-pin records and when caller-supplied public or synthetic non-personal metadata is involved.

## Known failure modes

- Input exceeds 32 KiB limit — request rejected
- nonpersonalMetadata not set to true — validation error
- dataClass not 'public' or 'synthetic' — enum validation failure
- rows array empty or exceeds 32 items — schema rejection
- Malformed row structure — parsing error returned

## How this service works

Count paired missing owner, revision and content pins without silently treating a missing value as a matching value for bounded backend/circuit/register/operation-pin records. Caller-supplied public/synthetic nonpersonal metadata only. No quantum simulation, device/API access, execution, calibration measurement, scientific validation or claim of circuit equivalence. Input limit: 32 KiB. Result retention: 24 hours; minimal receipt metadata: 90 days.

## Output

A structured report of co-occurrence counts for paired missing pins (owner, revision, content) across the supplied circuit register/operation-pin records, without false-positive matches from missing values. Results retained 24 hours; receipt metadata retained 90 days.

## 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/quantum-circuit-records-missingness-co-occurrence-counter-7e164f66/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)