# Protein Measurements Identifier Crosswalk Audit

> Protein Measurements Identifier Crosswalk Audit is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.035154/call, status unknown (last checked 2026-10-16).

Audits one-to-one identifier aliases against typed protein/isoform/sequence measurement pins to detect crosswalk inconsistencies without establishing ownership or authenticity.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/compute/protein-measurements/identifier-crosswalk-audit?utm_source=zero.xyz
- Price: $0.035154/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/protein-measurements-identifier-crosswalk-audit-6f1c4067
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mmegWco61YQVU1S_uaQLh

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 protein-measurements-identifier-crosswalk-audit-6f1c4067 -d '<json body>'
```

Example prompt: Can you audit these protein measurement rows and their identifier mappings against typed pins to find any crosswalk mismatches? I have up to 20 rows and 20 mappings, and the data class is synthetic.

## When to prefer this

Choose this endpoint when you need to programmatically validate that protein, isoform, or sequence measurement identifiers correctly resolve via one-to-one alias mappings against typed measurement pins — especially for auditing synthetic or public datasets before downstream processing. Prefer this over general data validation tools when the domain is specifically bioinformatics identifier crosswalking.

## Known failure modes

- Rows or mappings arrays exceed 32 items — request rejected with validation error
- dataClass not one of 'public' or 'synthetic' — enum validation failure
- nonpersonalMetadata not set to true — required const constraint violation
- Malformed or incomplete mapping objects cause audit to return incomplete results
- Ambiguous alias structures may produce inconclusive crosswalk results

## How this service works

Check one-to-one aliases against every typed pin; identifier mapping does not establish ownership, rights or authenticity for protein/isoform/sequence-pinned measurement Supplied-record analysis, not independent certification. Full contract at the free describe URL.

## Output

Returns an audit report detailing whether each identifier alias correctly maps one-to-one against its typed protein/isoform/sequence measurement pin, flagging mismatches, missing pins, or inconsistent crosswalk assignments. Does not certify ownership or authenticity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "maxItems": 32,
   "minItems": 1
  },
  "mappings": {
   "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/protein-measurements-identifier-crosswalk-audit-6f1c4067/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)