# X402 Agent Data Utility – Research Bundle

> X402 Agent Data Utility – Research Bundle is a paid API for AI agents from x402.feld-feder.at, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-14).

Fetches a research bundle for a given URL, returning structured page content, metadata, links, and markdown extraction in a single pay-per-request call.

## Facts

- Endpoint: POST https://x402.feld-feder.at/v1/research/bundle
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-agent-data-utility-research-bundle-92bb8142
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dZig8aTqzy3xGMB0Mqtfb

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-agent-data-utility-research-bundle-92bb8142 -d '<json body>'
```

Example prompt: Can you fetch the full research bundle for https://openai.com/blog — I need the page markdown, title, canonical URL, Open Graph tags, JSON-LD, and all the links on the page?

## When to prefer this

Choose this endpoint when you need a single-call research bundle combining markdown extraction, page metadata, Open Graph, JSON-LD, and link enumeration from a URL — especially in agent workflows where minimizing round trips matters. It is well-suited for pay-per-use agent pipelines using the x402 micropayment protocol at $0.025 USDC per call, making it cost-effective for one-off or infrequent page lookups rather than bulk crawling.

## Known failure modes

- URL is unreachable or returns non-200 status — may result in empty document or partial_errors populated
- Private or paywalled pages may return empty or partial content
- Malformed or non-HTML URLs may yield no markdown or metadata
- Payment failure (insufficient USDC) blocks the request before execution
- Rate limiting or network timeouts may cause incomplete responses

## How this service works

Pay-per-request data tools for AI agents.

## Output

Returns a JSON object with 'ok' status and a 'data' object containing: host and site identifiers, a list of sources, a document object with markdown-rendered page content and metadata (title, language, canonical URL, JSON-LD, Open Graph), a list of document links, and any partial errors encountered during fetching.

## 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[ResearchBundleData]",
     "required": [
      "data"
     ],
     "properties": {
      "ok": {
       "type": "boolean",
       "const": true,
       "title": "Ok",
       "default": true
      },
      "data": {
       "type": "object",
       "title": "ResearchBundleData",
       "required": [
        "document",
        "host",
        "site",
        "document_links",
        "sources",
        "partial_errors"
       ],
       "properties": {
        "host": {
         "anyOf": [
          {
           "type": "object",
           "title": "HostInspectionResult",
           "required": [
            "target_url",
            "dns",
            "tls",
            "http",
            "warnings"
           ],
           "properties": {
            "dns": {
             "type": "object",
             "title": "HostDnsResult",
             "required": [
              "hostname",
              "port",
              "addresses"
             ],
             "properties": {
              "port": {
               "type": "integer",
               "title": "Port",
               "maximum": 65535,
               "minimum": 1
              },
              "hostname": {
               "type": "string",
               "title": "Hostname"
              },
              "addresses": {
               "type": "array",
               "items": {
                "type": "string"
               },
     
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "host": null,
   "site": null,
   "sources": [],
   "document": {
    "links": [],
    "markdown": "# Example",
    "metadata": {
     "title": "Example",
     "json_ld": [],
     "language": "en",
     "open_graph": [],
     "canonical_url": "https://example.com"
    }
   },
   "document_links": [],
   "partial_errors": []
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-agent-data-utility-research-bundle-92bb8142/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)