# MG A11y Compare — Accessibility Comparison

> MG A11y Compare — Accessibility Comparison 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).

Compares the accessibility (a11y) characteristics of two public URLs and returns a structured comparison report

## Facts

- Endpoint: POST https://conway-replicatio-cloudflare.nikitamakiel1.workers.dev/api/x402/capability/mg-a11y-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/mg-a11y-compare-accessibility-comparison-e78dbb16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VHtaoxxircAqC4EuNWjGl

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 mg-a11y-compare-accessibility-comparison-e78dbb16 -d '<json body>'
```

Example prompt: Can you compare the accessibility of these two pages and tell me which one is more compliant — https://example.com/old-checkout and https://example.com/new-checkout?

## When to prefer this

Choose this endpoint when you need a structured, side-by-side accessibility comparison between two specific web pages — for example before/after a redesign, staging vs production, or competitive benchmarking. It is purpose-built for differential a11y analysis rather than single-page audits or full-site crawls.

## Known failure modes

- Invalid or non-public URLs will result in an error response
- URLs that are behind authentication or paywalls cannot be fetched and will fail
- Network timeouts if the target URLs are slow to respond
- Payment not settled results in 402 response before processing begins
- Malformed request body missing required url or compareUrl fields returns validation error

## 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

Returns a JSON object with ok status and a data payload containing structured accessibility comparison results for the two submitted URLs, including differences in a11y attributes, semantic structure, and compliance signals between the primary and comparison page.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {},
  "capability": "mg-a11y-compare"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mg-a11y-compare-accessibility-comparison-e78dbb16/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)