# Delx Commerce — Agent Result Schema Version Check

> Delx Commerce — Agent Result Schema Version Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Checks whether a given agent result schema version is supported, returning a pass/fail result with verifiable evidence.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/agent-result-schema-version-check?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-agent-result-schema-version-check-0880d0d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IayQHDI8bvp2DZ_fWwF11

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 delx-commerce-agent-result-schema-version-check-0880d0d1 -d '<json body>'
```

Example prompt: Can you check whether the schema 'example/result/v1' is in the supported versions list ['example/result/v1', 'example/result/v2'] for agent results?

## When to prefer this

Choose this endpoint when you need a lightweight, verifiable, pay-per-result check that a specific agent result schema version string is in a given supported list — especially in agentic pipelines where auditability (SHA-256 evidence, no data retention, zero external calls) matters. Prefer it over ad-hoc string matching when you need a tamper-evident, cryptographically evidenced result you can log or pass downstream.

## Known failure modes

- Schema string exceeds 8192 character limit — request rejected
- Supported array exceeds 256 items — request rejected
- Malformed JSON body — 400 error
- Schema not found in supported list — result.supported returns false, status returns 'fail'
- Network or service unavailability — 5xx error

## How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

## Output

Returns a JSON object with: the schema name that was checked, a boolean 'supported' flag, an overall 'pass' or 'fail' status, and a verifiable evidence block containing an input SHA-256 hash, a flag confirming no data retention, and a count of zero external calls made. Identifies the operation as 'delivery_contract:agent_result_schema_version_check'.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "schema": {
   "type": "string",
   "maxLength": 8192,
   "description": "Schema supplied to Agent Result Schema Version Check; used only for this bounded calculation and processed in memory without retention."
  },
  "supported": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 8192
   },
   "maxItems": 256,
   "description": "Supported supplied to Agent Result Schema Version Check; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "schema": "example/result/v1",
   "supported": true
  },
  "schema": "delx/util-agent-result-schema-version-check/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "574438cd9e35b933fd023becde42242fff15965a01b654dbf0c200677a9202e9",
   "external_calls": 0
  },
  "operation": "delivery_contract:agent_result_schema_version_check"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-agent-result-schema-version-check-0880d0d1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)