# VerifyPulse HN Founders Lead Dataset

> VerifyPulse HN Founders Lead Dataset is a paid API for AI agents from verifypulse-seven.vercel.app, paid per call via x402, $6/call, status unknown (last checked 2026-10-11).

Returns a curated dataset of 47 verified B2B email leads sourced from Hacker News hiring posts, with deliverability scores for each founder contact.

## Facts

- Endpoint: GET https://verifypulse-seven.vercel.app/v1/x402/leads/hn-founders?utm_source=zero.xyz
- Price: $6/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifypulse-hn-founders-lead-dataset-b43022cf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3upfBaTBNWgGegCDFZYYB

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 verifypulse-hn-founders-lead-dataset-b43022cf
```

Example prompt: Pull me the VerifyPulse HN founders lead dataset — I want the list of verified startup founder emails from Hacker News hiring posts, including their deliverability scores and company info.

## When to prefer this

Choose this endpoint when you need a ready-made, pre-verified list of startup founder email contacts sourced specifically from Hacker News hiring threads, and want to skip the individual email verification step. Best suited for B2B sales teams or growth hackers targeting early-stage startup founders, particularly from YC batches. Prefer alternatives if you need real-time verification of your own email list, a larger dataset, or contacts from sources other than HN.

## Known failure modes

- Payment not completed (x402 payment required before data is returned)
- Invalid or missing format query parameter may return malformed response
- Dataset may be static/stale — contacts from a specific HN thread snapshot, not live
- Rate limiting or access denial if payment not properly processed
- Empty or partial response if upstream verification data is unavailable

## How this service works

VerifyPulse is a high-speed B2B email verification engine. Validate RFC syntax, resolve live DNS MX records, filter 3,800+ disposable domains, and run simulated SMTP handshakes in sub-140ms. Stop bounces before sending.

## Output

A JSON object containing a dataset identifier ('hn_hiring_founders_47'), a record count (47), and a sample record showing fields: role, email, domain, company, and deliverability_score (0–100). The full dataset presumably includes all 47 verified founder contacts from Hacker News hiring posts.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "format": {
       "type": "string",
       "description": "Parameter format (e.g. json)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sample": {
   "role": "Founding Product Engineer",
   "email": "yarik@voygr.tech",
   "domain": "voygr.tech",
   "company": "VOYGR (YC W26)",
   "deliverability_score": 100
  },
  "dataset": "hn_hiring_founders_47",
  "records_count": 47
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifypulse-hn-founders-lead-dataset-b43022cf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from verifypulse-seven.vercel.app](https://www.zero.xyz/host/verifypulse-seven.vercel.app/llms.txt)