# LION Social Signal Intel

> LION Social Signal Intel is a paid API for AI agents from lionx402.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).

Fetches Reddit and Hacker News social attention signals for a given domain, returning a trend score and top posts

## Facts

- Endpoint: GET https://lionx402.com/api/x402/social-signal-intel-json
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lion-social-signal-intel-f5694bc7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__xnQTC7dgSRAjP5HEx-mA

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 lion-social-signal-intel-f5694bc7
```

Example prompt: Can you pull the social signal intel for anthropic.com — I want to see its trend score and the top Reddit and Hacker News posts mentioning it right now?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call social attention score for a specific domain without an API key or subscription. It is ideal for agents doing competitive intelligence, startup research, or brand monitoring that need both Reddit and Hacker News signals aggregated into a single trend score. Prefer this over full social listening platforms when you only need domain-level signals and want to pay micro-amounts per lookup rather than a monthly flat fee.

## Known failure modes

- Domain not found or no social signals available — resolved: false with empty signal arrays
- Invalid domain format — missing or malformed domain parameter causes 400-class error
- Rate limit or payment failure — x402 payment not processed correctly results in 402 response
- Upstream API unavailability — HN Algolia or Reddit JSON unreachable causes partial or empty results
- Scheme or path included in domain — service strips these but malformed input may return unexpected results

## How this service works

LION Social Signal Intel (HN + Reddit keyless attention/trend)

## Output

A JSON object containing an as_of timestamp, a topic label, a resolved flag, a trend_score (0–1 float), an asset_id, the data sources used, and arrays of top Reddit posts (url, score, title, created_utc, num_comments) and Hacker News posts (url, title, points, created_at, num_comments) for the queried domain.

## 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": {
      "q": {
       "type": "string"
      },
      "topic": {
       "type": "string"
      },
      "entity": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "service": "LION Verified Company",
  "asset_id": "LION",
  "resolved": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lion-social-signal-intel-f5694bc7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lionx402.com](https://www.zero.xyz/host/lionx402.com/llms.txt)