# RobinX Social Momentum — Robinhood Chain Caller Grading

> RobinX Social Momentum — Robinhood Chain Caller Grading is a paid API for AI agents from api.robinx.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a ranked list of tokens on Robinhood Chain (chain 4663) by social momentum, weighted by the measured accuracy of X (Twitter) callers who mentioned them — filtering noise from credible early callers.

## Facts

- Endpoint: GET https://api.robinx.io/social/momentum
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/robinx-social-momentum-robinhood-chain-caller-grading-f2297159
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ye3MeIJFyGgTSzIn7T39T

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 robinx-social-momentum-robinhood-chain-caller-grading-f2297159
```

Example prompt: Pull the current social momentum snapshot for Robinhood Chain over the last 6 hours — I want to see which tokens are getting the most attention from callers who've actually been right before, not just the loudest accounts.

## When to prefer this

Use this endpoint when you need signal quality over signal quantity on Robinhood Chain — specifically when you want to weight social mentions by the historical accuracy of the callers making them, rather than raw mention volume. Prefer this over generic crypto trending endpoints when you are specifically trading or researching Robinhood Chain (chain 4663) and want to distinguish credible early callers from noise and coordinated shill clusters.

## Known failure modes

- No tokens returned if no social activity occurred in the requested window
- Payment failure via x402 if USDC balance is insufficient or wallet not connected
- Stale data if on-chain price feeds lag genesis indexing
- Low voice counts if Robinhood Chain is in an early/quiet phase
- Rate limiting if too many calls made in rapid succession

## How this service works

Tokens ranked by measured caller-accuracy weight (then independent voices, then mention count) — mutual-follow clusters collapsed to one voice

## Output

Returns a JSON object containing a list of tokens active on Robinhood Chain (chain 4663) within the requested time window, each with its contract address, symbol, number of distinct credible 'voices', FDV in USD, raw mention count, number of collapsed caller clusters (deduplicating coordinated accounts), and a measured early-caller weight score reflecting how historically accurate the callers were relative to on-chain price action. Also includes the window_hours used for the query.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "properties": {
      "hours": {
       "type": "integer",
       "description": "1-48, default 6"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "data": {
      "tokens": [
       {
        "token": "0x020bfC650A365f8BB26819deAAbF3E21291018b4",
        "symbol": "CASHCAT",
        "voices": 4,
        "fdv_usd": 72000000,
        "mentions": 18,
        "clusters_collapsed": 2,
        "measured_early_weight": 1.6
       }
      ],
      "window_hours": 6
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "data": {
  "tokens": [
   {
    "token": "0x020bfC650A365f8BB26819deAAbF3E21291018b4",
    "symbol": "CASHCAT",
    "voices": 4,
    "fdv_usd": 72000000,
    "mentions": 18,
    "clusters_collapsed": 2,
    "measured_early_weight": 1.6
   }
  ],
  "window_hours": 6
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/robinx-social-momentum-robinhood-chain-caller-grading-f2297159/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.robinx.io](https://www.zero.xyz/host/api.robinx.io/llms.txt)