# RobinX Pulse — Real-Time X Sentiment & Caller Activity

> RobinX Pulse — Real-Time X Sentiment & Caller Activity is a paid API for AI agents from api.robinx.io, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-15).

Returns a real-time synthesis of X (Twitter) chatter, sentiment, and measured-caller activity for a given token contract address on Robinhood Chain

## Facts

- Endpoint: GET https://api.robinx.io/pulse/:token
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/robinx-pulse-real-time-x-sentiment-caller-activity-29581e3b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dy84bZ2t6Ukr1xrL6w-Wj

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-pulse-real-time-x-sentiment-caller-activity-29581e3b
```

Example prompt: What's the live X sentiment and caller activity right now for the token at contract address 0x1234abcd...? I want a narrative summary and to know if any proven callers are posting about it.

## When to prefer this

Choose this endpoint when you need a real-time, synthesized snapshot of X (Twitter) social sentiment and proven-caller activity for a specific token contract on Robinhood Chain. It is distinct from generic sentiment APIs because it cross-references caller credibility grades maintained by RobinX, giving you signal quality rather than raw volume. Prefer this over on-chain-only stats endpoints when social narrative and credible caller presence are the deciding factor.

## Known failure modes

- Invalid or malformed token contract address returns an error or empty result
- Token not yet indexed on RobinX returns no narrative data
- Rate limiting or payment failure (x402) if USDC payment is not properly attached
- Network timeout if X data pipeline is temporarily delayed
- Token with zero social activity returns null narrative and zero callers

## How this service works

Real-time X synthesis: narrative, sentiment, proven-caller activity

## Output

Returns a JSON object containing: a 'narrative' field with a brief natural-language synthesis of live X chatter about the token, a 'sentiment' field (e.g. 'mixed', 'bullish', 'bearish'), a 'measured_callers_present' integer indicating how many graded/proven callers are actively discussing the token, and a 'signal' field set to 'pulse'.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "required": [
      "token"
     ],
     "properties": {
      "token": {
       "type": "string",
       "description": "token contract address 0x…"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "data": {
      "narrative": "brief synthesis of live X chatter",
      "sentiment": "mixed",
      "measured_callers_present": 2
     },
     "signal": "pulse"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "data": {
  "narrative": "brief synthesis of live X chatter",
  "sentiment": "mixed",
  "measured_callers_present": 2
 },
 "signal": "pulse"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/robinx-pulse-real-time-x-sentiment-caller-activity-29581e3b/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)