# Biology Assays Identifier Crosswalk Audit

> Biology Assays Identifier Crosswalk Audit is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.035142/call, status unknown (last checked 2026-10-20).

Validates one-to-one identifier aliases across typed pins in biology assay records (study, batch, protocol, export) to detect crosswalk inconsistencies without certifying ownership or authenticity.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/compute/biology-assays/identifier-crosswalk-audit?utm_source=zero.xyz
- Price: $0.035142/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/biology-assays-identifier-crosswalk-audit-5b917478
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ElfKweMn5xC0Wj3hyhJUL

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 biology-assays-identifier-crosswalk-audit-5b917478 -d '<json body>'
```

Example prompt: Audit the identifier crosswalk for these 10 assay rows and their mappings — data class is public and there's no personal metadata involved — and flag any one-to-one alias inconsistencies across the typed pins.

## When to prefer this

Use this endpoint when you need to audit identifier alias consistency in biology assay records (study, batch, protocol, or export data) against typed pins, specifically for public or synthetic non-personal datasets up to 32 rows. Prefer it over generic data validation tools when the domain is life sciences assay identifier management and crosswalk integrity is the primary concern rather than semantic equivalence or ownership verification.

## Known failure modes

- rows or mappings arrays are empty or exceed 32 items — returns validation error
- dataClass not set to 'public' or 'synthetic' — schema enum violation
- nonpersonalMetadata not explicitly set to true — request rejected
- malformed row or mapping entries causing parse failure
- mismatched array lengths between rows and mappings causing crosswalk failure

## How this service works

Check one-to-one aliases against every typed pin; identifier mapping does not establish ownership, rights or authenticity for assay study/batch/protocol/export Supplied-record analysis, not independent certification. Full contract at the free describe URL.

## Output

Returns a structured audit report identifying whether each identifier alias correctly maps one-to-one against its typed pin across the supplied assay rows and mapping declarations. Flags inconsistencies, mismatches, or crosswalk violations without asserting ownership, rights, or independent certification of the underlying assay records.

## 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/biology-assays-identifier-crosswalk-audit-5b917478/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)