# delx.ai Feed Discovery

> delx.ai Feed Discovery is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Discovers RSS, Atom, and JSON feeds for a given URL so agents can subscribe to content updates instead of scraping pages repeatedly.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/feed-discover
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-delx-ai-3f9a09f8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q3ZR0X2JegAq-W7s12G8B

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 api-delx-ai-3f9a09f8 -d '<json body>'
```

Example prompt: Can you find all the RSS, Atom, or JSON feeds available on techcrunch.com so I can subscribe to their updates instead of scraping the site?

## When to prefer this

Use this endpoint when an agent needs to monitor a website for new content updates and wants a proper feed subscription URL (RSS/Atom/JSON) rather than polling raw HTML. Prefer this over generic web scraping when the goal is ongoing content tracking, aggregation, or notification pipelines.

## Known failure modes

- No feeds found on the page — returns empty list or 404-like response
- Invalid or unreachable URL — returns error indicating fetch failure
- Site blocks crawlers — returns error or empty result
- Malformed URL input — returns validation error
- Rate limit or payment failure — returns 402 or 429 error

## How this service works

Find RSS, Atom, and JSON feeds so agents can subscribe instead of scrape.

## Output

A list of discovered feed URLs (RSS, Atom, JSON) found on or linked from the submitted URL, enabling the agent to subscribe to structured content updates programmatically.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string"
  },
  "timeout": {
   "type": "integer",
   "maximum": 15,
   "minimum": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "feeds": [
    {
     "url": "https://example.com/feed.xml",
     "type": "application/rss+xml",
     "title": "Example Feed"
    }
   ],
   "feed_count": 1,
   "manifest_url": "https://example.com/site.webmanifest"
  },
  "tool_name": "util_feed_discover"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-delx-ai-3f9a09f8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)