# Conway Replicatio MG Catalog Compare

> Conway Replicatio MG Catalog Compare is a paid API for AI agents from conway-replicatio-cloudflare.nikitamakiel1.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Fetches and compares two public URLs, returning a structured diff or similarity analysis of their content

## Facts

- Endpoint: POST https://conway-replicatio-cloudflare.nikitamakiel1.workers.dev/api/x402/capability/mg-catalog-compare
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/conway-replicatio-mg-catalog-compare-82d1852e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rCoIe6jMXaTQJ8Lb-887u

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 conway-replicatio-mg-catalog-compare-82d1852e -d '<json body>'
```

Example prompt: Compare these two product catalog pages and tell me what's different between them: https://shop.example.com/catalog/spring and https://shop.example.com/catalog/spring-v2

## When to prefer this

Use this endpoint when you need an automated, pay-per-call comparison of two public URLs' content — particularly product catalogs, API responses, or web pages — without building your own scraping and diffing infrastructure. Prefer it over manual inspection when catalog drift detection or version comparison needs to be embedded in an agent workflow with crypto micropayment settlement.

## Known failure modes

- One or both URLs are unreachable or return non-200 status — request fails with error
- URLs point to non-public or auth-gated resources — fetch is blocked
- Malformed URI provided for url or compareUrl — schema validation error
- Rate limiting or timeout on external URL fetch — partial or failed response
- Payment not settled in USDC on Base — request rejected before processing

## How this service works

Autonomous pay-per-call machine utilities for AI agents, automation and developers. Payments settle in USDC on Base through x402.

## Output

A JSON object with ok: true, the capability name 'mg-catalog-compare', and a data object containing the structured comparison result between the two fetched URLs — likely including differences, matched fields, or a similarity summary.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {},
  "capability": "mg-catalog-compare"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/conway-replicatio-mg-catalog-compare-82d1852e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from conway-replicatio-cloudflare.nikitamakiel1.workers.dev](https://www.zero.xyz/host/conway-replicatio-cloudflare.nikitamakiel1.workers.dev/llms.txt)