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SperaxOS DeFi Event Classifier
x402
SperaxOS DeFi Event Classifier is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-12).
Classifies on-chain DeFi events using AI to identify event types, patterns, and significance for a given blockchain transaction or log entry
Price / call$0.02
Success—
StatusUnknown
How this service works
AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.
Output
Returns an AI-generated classification of the provided DeFi event, including the event type label (e.g. swap, liquidation, deposit, withdrawal, harvest), relevant category metadata, and confidence or reasoning about the classification decision.
Example use cases
Portfolio DeFi activity labeling
“I'm building a DeFi portfolio tracker and I need to classify this on-chain event from a Base transaction — can you tell me what type of DeFi action it represents, like whether it's a swap, stake, or withdrawal?”
DeFi protocol analytics pipeline
“I'm analyzing protocol activity and need to categorize a batch of on-chain events — can you classify this event log to tell me if it's a liquidation, yield harvest, or something else?”
Smart contract audit event tagging
“I'm auditing smart contract interactions and I need to understand what happened in this event — can you classify it and tell me what DeFi operation category it falls under?”
Technical details
Endpoint
GEThttps://chat.sperax.io/api/x402/hq/classify-event?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need AI-powered semantic classification of DeFi events rather than rule-based or heuristic tagging. Ideal for agents processing raw blockchain logs that need human-readable event categorization without maintaining complex ABI mappings. Prefer this over generic blockchain explorers when you need an intelligent label (not just decoded parameters) and when pay-per-call pricing with no API key setup is preferable to subscription APIs.
Side effects
- Missing or malformed event data returns a 400 error
- Insufficient USDC payment via x402 returns a 402 Payment Required response
- Unrecognized or non-DeFi event data may return a low-confidence or unknown classification
- Network or AI model timeout results in a 503 error
- Invalid x402 payment header structure causes payment rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Tags
x402
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