# PredictLeads Startup Platform Posts Discovery

> PredictLeads Startup Platform Posts Discovery is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).

Discovers and retrieves posts from startup platforms like Product Hunt and Hacker News with pagination billing support

## Facts

- Endpoint: GET https://x402.orthogonal.com/predictleads/v3/discover/startup_platform_posts
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/predictleads-startup-platform-posts-discovery-2dfbade4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xph3QjifuIo2Y00tXXNk_

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 predictleads-startup-platform-posts-discovery-2dfbade4
```

Example prompt: Can you pull the latest startup platform posts from Product Hunt and Hacker News published in the last 7 days? Show me up to 25 results from the first page.

## When to prefer this

Use this endpoint when you need structured, paginated discovery of posts from well-known startup platforms like Product Hunt and Hacker News, especially when monitoring new product launches or researching startup activity over a date range. Prefer this over general web scraping when you want clean, pre-parsed startup post data with cost-efficient pagination via the parentRequestId billing model.

## Known failure modes

- Invalid date format for published_at_from or published_at_until returns a 400 error
- Requesting a page beyond available results returns an empty array
- Changing filter parameters while passing parentRequestId starts a new billable request instead of continuing pagination
- Rate limiting or payment failure returns a 402 or 429 error
- Invalid post_types value may return no results or an error

## How this service works

Discover posts from startup platforms (Product Hunt, Hacker News, etc.) Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters starts a new billable request.

## Output

Returns a paginated list of posts from startup platforms such as Product Hunt and Hacker News, including post metadata like publication date, post type, and platform source. Later pages of the same query can be fetched at no additional charge by passing the parentRequestId from the first response.

## 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",
     "properties": {
      "page": {
       "type": "integer",
       "description": "For later pages of the same logical search, keep non-pagination parameters unchanged and pass top-level parentRequestId from the first Orthogonal /v1/run response."
      },
      "limit": {
       "type": "integer"
      },
      "post_types": {
       "type": "string"
      },
      "published_at_from": {
       "type": "string"
      },
      "published_at_until": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/predictleads-startup-platform-posts-discovery-2dfbade4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.orthogonal.com](https://www.zero.xyz/host/x402.orthogonal.com/llms.txt)