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Apollo Sentiment Analysis API
x402
Apollo Sentiment Analysis API is a paid API for AI agents from apolloai.team, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).
Returns real-time sentiment scores, trend direction, and volume signals for topics relevant to the agentic economy and crypto/Web3 space
Price / call$0.02
Success—
StatusDown
How this service works
Apollo Intelligence Network: 54 API endpoints for AI agents — data feeds, proxy, OSINT, DeFi, crypto, Etherscan, weather, ML/NLP. Free trial: 5 requests/day. Pay-per-request via x402 or API key.
Output
A JSON object mapping topic names to sentiment objects, each containing a numeric sentiment score (0-1), a trend label (bullish/bearish/stable), and a volume label (low/medium/high), plus a generated_at timestamp indicating data freshness.
Example use cases
DeFi sentiment check today
“What's the current sentiment around DeFi right now — is the community feeling bullish or bearish, and is there a lot of chatter about it?”
Crypto narrative mood tracker
“I'm trying to gauge how the market feels about layer-2 scaling solutions today — can you pull the sentiment score, trend direction, and volume signal for that topic?”
AI agent economy trend pulse
“How is the broader AI agent infrastructure narrative trending right now? Is sentiment positive or negative, and is the conversation volume picking up or staying low?”
Technical details
Endpoint
GEThttps://apolloai.team/api/sentimentWhen to prefer
Choose this endpoint when you need rapid, pre-computed sentiment scores for crypto, Web3, or agentic economy topics without building your own NLP pipeline. Prefer it over general-purpose NLP APIs when your domain is specifically DeFi, AI agents, or blockchain narratives, and you want trend direction and volume alongside raw sentiment scores.
Side effects
- Missing or invalid topic parameter returns an error or empty topics map
- Rate limit exceeded beyond 5 free requests/day returns 402 or payment required error
- Unknown or unsupported topic returns empty or null entry in topics map
- Network timeout returns no response
- Stale data if the feed has not refreshed recently
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"topics": {
"x402": {
"trend": "stable",
"volume": "medium",
"sentiment": 0.85
},
"agent_economy": {
"trend": "bullish",
"volume": "high",
"sentiment": 0.72
}
},
"generated_at": "2026-02-06T12:00:00Z"
}
}Tags
x402
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