# Saylor Innovations Broken Link Checker

> Saylor Innovations Broken Link Checker is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Fetches up to 30 links from a given web page URL and reports each link's HTTP status, redirect chain, and response time, along with summary counts of ok, broken, and redirected links.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/web/links?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-broken-link-checker-fc5d0447
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2sucpr27kFhIinFQCAcXa

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 saylor-innovations-broken-link-checker-fc5d0447
```

Example prompt: Can you check https://myblog.com/about for broken links — scan up to 20 links and tell me which ones are broken, which redirect, and how many are fine?

## When to prefer this

Choose this endpoint when you need a quick, low-cost per-page link health check with per-link status detail including redirect chains and response times. Ideal for single-page audits, pre-publish checks, or spot-checking specific URLs rather than full-site crawls.

## Known failure modes

- Invalid or unreachable URL returns an error or empty results
- Private/behind-auth pages cannot be fetched, resulting in incomplete link data
- Pages with JavaScript-rendered links may miss dynamically inserted hrefs
- Limit parameter out of range (not 1-30) may cause validation error
- Some links may time out and be counted as broken even if intermittently available
- Anti-scraping protections on target pages may block link fetching

## How this service works

Broken link checker for a web page - fetches up to 30 links and reports status code, redirects and failures with a count of ok, broken and redirected

## Output

Returns a JSON object with the checked page URL, a summary count of ok/broken/redirected links, the total links found and checked, an array of per-link results (each with URL, final URL, HTTP status, response time in ms, whether it redirected, and whether it's internal), and a list of broken links specifically. Also includes an optional note with caveats.

## 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",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Public page URL"
      },
      "limit": {
       "type": "string",
       "description": "optional 1-30 links to check, default 15"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "url",
      "results",
      "broken"
     ],
     "properties": {
      "ok": {
       "type": "number",
       "description": "True when the check succeeded"
      },
      "url": {
       "type": "string",
       "description": "Canonical URL"
      },
      "note": {
       "type": "string",
       "description": "Caveat or context for reading the result"
      },
      "broken": {
       "type": "number",
       "description": "Number of links that returned an error status or did not answer"
      },
      "source": {
       "type": "string",
       "description": "Data source the values come from"
      },
      "results": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "ms": {
          "type": [
           "number",
           "null"
          ],
          "description": "Response time in milliseconds"
         },
         "ok": {
          "description": "True when the check succeeded"
         },
         "url": {
          "description": "Canonical URL"
         },
         "status": {
          "description": "Current status"
         },
         "internal": {
          "type": [
           "boolean",
           "null"
          ],
          "description": "True when the link points to the same site"
         },
         "final_url": {
          "description": "Final URL"
         },
         "redirected": {
          "type": [
           "boolean",
           "null"
          ],
          "description": "True when the link answered with a redirect"
  
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-broken-link-checker-fc5d0447/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)