# Conway Replicatio Page Diff

> Conway Replicatio Page Diff is a paid API for AI agents from conway-replicatio-cloudflare.nikitamakiel1.workers.dev, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-14).

Compares two web page URLs and returns the differences between their content

## Facts

- Endpoint: POST https://conway-replicatio-cloudflare.nikitamakiel1.workers.dev/api/x402/page-diff
- Price: $0.08/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-page-diff-ca95b5d0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fEYWglzpLpdG_MCnkYqMY

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-page-diff-ca95b5d0 -d '<json body>'
```

Example prompt: Can you compare these two web pages and show me what's different between them: https://example.com/page-v1 and https://example.com/page-v2?

## When to prefer this

Choose this endpoint when you need a pay-per-call, no-infrastructure web page diff that pays via USDC on Base. Ideal for AI agents that need occasional on-demand comparison of two live URLs without setting up a monitoring service. Best when both pages are publicly accessible and you want a quick structured diff result.

## Known failure modes

- Invalid or unreachable URL returns an error response
- One or both URLs return non-200 HTTP status
- Timeout if target pages are slow to respond
- Malformed URI format in url or compareUrl fields causes validation failure
- Pages with bot-detection may block fetching, resulting in empty or error diff

## 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:true, the service name 'page-diff', and a data object containing the computed differences between the content of the two provided URLs.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "url",
      "compareUrl"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri"
      },
      "compareUrl": {
       "type": "string",
       "format": "uri"
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {},
  "service": "page-diff"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/conway-replicatio-page-diff-ca95b5d0/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)