# X Topic Pulse — Tweet Search + Sentiment + Top Voices

> X Topic Pulse — Tweet Search + Sentiment + Top Voices is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-30).

Runs tweet search and sentiment analysis in parallel on a given topic, returning recent tweets, aggregate sentiment, and top voices ranked by engagement, in a single API call.

## Facts

- Endpoint: POST https://x402.agentutility.ai/x-topic-pulse?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x-topic-pulse-tweet-search-sentiment-top-voices-dce36cbe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gHosIYwbg9BbM-sVZu1uB

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 x-topic-pulse-tweet-search-sentiment-top-voices-dce36cbe -d '<json body>'
```

Example prompt: What's the current pulse on 'AI agents' on X — give me recent tweets, the overall sentiment, and the top accounts driving the conversation right now.

## When to prefer this

Choose this endpoint when you need a composite snapshot of a topic on X — combining tweets, sentiment, and top voices — in a single call, rather than stitching together separate tweet-search, sentiment, and influencer-ranking calls. It is ideal for social listening, brand monitoring, trend intelligence, and any agent workflow that needs X topic intelligence without managing multiple API calls and merging logic. Prefer it over raw Twitter API access when you want USDC-settled, agent-ready output with no OAuth token management.

## Known failure modes

- Topic query too broad or ambiguous — may return noisy, low-relevance results
- X API rate limits or downtime causing partial or failed data retrieval
- No recent tweets found for niche or very low-volume topics — empty or sparse result set
- Sentiment model may misclassify irony or sarcasm common on X
- Payment settlement failure via x402 if USDC balance is insufficient

## How this service works

Takes the pulse of a topic on X (Twitter): tweet search, sentiment, and top voices in one call. Composite: one call runs tweet-search + twitter-sentiment in parallel over the same topic and merges recent tweets, aggregate sentiment, and the accounts driving engagement (top_voices ranked by likes, retweets, replies). One settlement instead of stitching three X calls. Use it for X topic intelligence or social listening for agents.

## Output

Returns a merged payload containing: a set of recent tweets matching the topic (text, timestamps, public metrics), an aggregate sentiment score or label (positive/negative/neutral) across those tweets, and a ranked list of top voices — accounts sorted by engagement signals (likes, retweets, replies) — all from a single parallel execution of tweet search and sentiment analysis.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "topic"
     ],
     "properties": {
      "topic": {
       "type": "string",
       "description": "Topic, phrase, or X search query. 1-300 chars."
      },
      "language": {
       "type": "string",
       "description": "Two-letter language code. Default 'en'."
      },
      "max_results": {
       "type": "number",
       "description": "Tweets to return, 5-50. Default 20."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "topic": {
       "type": "string"
      },
      "tweets": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "text": {
          "type": "string"
         },
         "likes": {
          "type": "integer"
         },
         "author": {
          "type": "string"
         }
        }
       }
      },
      "sentiment": {
       "type": "object",
       "properties": {
        "score": {
         "type": "number"
        },
        "overall": {
         "type": "string"
        }
       }
      },
      "components": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "ms": {
          "type": "integer"
         },
         "ok": {
          "type": "boolean"
         },
         "name": {
          "type": "string"
         }
        }
       }
      },
      "top_voices": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "author": {
          "type": "string"
         },
         "tweets": {
          "type": "integer"
         },
         "engagement": {
          "type": "integer"
         }
        }
       }
      },
      "composed_of": {
       "type": "array",
       "items": {
        "type": "string"
      
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "topic": "agent payments",
  "tweets": [
   {
    "text": "…",
    "likes": 12,
    "author": "example"
   }
  ],
  "sentiment": {
   "score": 0.4,
   "overall": "positive"
  },
  "components": [
   {
    "ms": 950,
    "ok": true,
    "name": "tweet-search"
   }
  ],
  "top_voices": [
   {
    "author": "example",
    "tweets": 3,
    "engagement": 88
   }
  ],
  "composed_of": [
   "tweet-search",
   "twitter-sentiment"
  ],
  "tweet_count": 20
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x-topic-pulse-tweet-search-sentiment-top-voices-dce36cbe/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.agentutility.ai](https://www.zero.xyz/host/x402.agentutility.ai/llms.txt)