# page-diff-bulk

> page-diff-bulk is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Concurrently checks up to 20 URLs for text changes since the last call, returning ordered results with per-item errors and a failure count.

## Facts

- Endpoint: GET https://intel.rallylive.ca/bulk/page/text-diff
- 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/page-diff-bulk-ba472ecb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1K0Z2yqIf0Tlsb97QUG02

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 page-diff-bulk-ba472ecb
```

Example prompt: Check all 20 URLs in my watchlist for text changes since the last time you checked them — tell me which ones changed, what changed, and flag any that errored out.

## When to prefer this

Use this endpoint when you have a list of 2–20 URLs you need to diff in a single round-trip rather than calling the single /page/text-diff endpoint repeatedly. It is more efficient for agent workflows that maintain watchlists, reduces latency through concurrent processing, and handles partial failures gracefully with per-item error fields so a single bad URL does not abort the entire batch.

## Known failure modes

- Individual URL fetch failure (per-item error field populated, counted in failure total)
- Exceeding 20 URL limit causes rejection
- No prior snapshot exists for a URL (first-call baseline, no diff available)
- Network timeout on one or more concurrent fetches
- Invalid URL format in input list

## How this service works

Bulk page diff: up to 20 urls in one call, processed concurrently, results returned in input order with a per-item error field and a count of failures. Same answer per item as the single /page/text-diff endpoint (Page text diff against your previous call). Batch enrichment for agents that hold a list. $0.01 per batch.

## Output

An ordered array of diff results matching the input URL list, where each item contains the same fields as a single /page/text-diff response (detected changes, diff text, etc.), plus a per-item error field if that URL failed; also returns a top-level count of how many items failed.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/page-diff-bulk-ba472ecb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)