# X402 Feed Parser

> X402 Feed Parser is a paid API for AI agents from x402.feld-feder.at, paid per call via x402, $0.002/call, status down (last checked 2026-09-15).

Parses a web feed URL (RSS/Atom) and returns structured feed metadata and entries, billed per-request via x402 micropayments.

## Facts

- Endpoint: POST https://x402.feld-feder.at/v1/feed/parse
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-feed-parser-d7c5091a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8uGHQQy-JHJsxElm875Sn

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 x402-feed-parser-d7c5091a -d '<json body>'
```

Example prompt: Can you parse the RSS feed at https://feeds.arstechnica.com/arstechnica/index and give me the feed title, format, and latest entries?

## When to prefer this

Use this endpoint when an AI agent needs to programmatically ingest and structure an RSS or Atom feed from a URL, especially in automated pipelines where pay-per-use micropayment billing via x402 is acceptable. Prefer over building a custom fetcher when you need immediate structured output (title, entries, format, home URL) without managing a feed-parsing library yourself.

## Known failure modes

- Invalid or unreachable feed URL returns an error response
- Non-feed URLs (HTML pages) may fail to parse and return an error
- Malformed XML in the feed may cause parse failures
- Payment failure via x402 protocol blocks the request
- Rate limits or timeouts on the remote feed server cause fetch failures

## How this service works

Pay-per-request data tools for AI agents.

## Output

Returns a JSON object with ok: true and a data object containing the feed title, detected format (rss/atom), list of entries, home URL, and description (if available). Entries typically include item titles, links, and publication dates.

## 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",
     "title": "WebUrlRequest",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "title": "Url",
       "maxLength": 4096,
       "minLength": 1
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "ResponseEnvelope[FeedToolDocument]",
     "required": [
      "data"
     ],
     "properties": {
      "ok": {
       "type": "boolean",
       "const": true,
       "title": "Ok",
       "default": true
      },
      "data": {
       "type": "object",
       "title": "FeedToolDocument",
       "required": [
        "format",
        "title",
        "home_url",
        "description",
        "entries"
       ],
       "properties": {
        "title": {
         "anyOf": [
          {
           "type": "string"
          },
          {
           "type": "null"
          }
         ],
         "title": "Title"
        },
        "format": {
         "enum": [
          "atom",
          "rss",
          "feed"
         ],
         "type": "string",
         "title": "Format"
        },
        "entries": {
         "type": "array",
         "items": {
          "type": "object",
          "title": "FeedToolEntry",
          "required": [
           "id",
           "title",
           "url",
           "summary",
           "published"
          ],
          "properties": {
           "id": {
            "anyOf": [
             {
              "type": "string"
             },
             {
              "type": "null"
             }
            ],
            "title": "Id"
           },
           "url": {
            "anyOf": [
             {
              "type": "string"
             },
           
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "title": "Example feed",
   "format": "rss",
   "entries": [],
   "home_url": "https://example.com",
   "description": null
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-feed-parser-d7c5091a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.feld-feder.at](https://www.zero.xyz/host/x402.feld-feder.at/llms.txt)