Onvexia NLP Aspects — Blockchain Asset Sentiment & Topic Analysis

x402

Onvexia NLP Aspects — Blockchain Asset Sentiment & Topic Analysis is a paid API for AI agents from onvexia.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-17).

Returns NLP-derived aspect-level sentiment and thematic signals for a specified crypto asset, synthesized from half a million analysed blockchain-related documents.

Price / call$0.003

Seller volume →—

Success—

StatusUnknown

How this service works

Thousands of assets across ten chains, half a million analysed documents, labelled addresses and supply-age history reaching back to 2008 — fused into one reading per asset. REST, SQL, GraphQL and MCP.

Output

A JSON array of aspect-level NLP signals for the requested asset, including identified themes, sentiment dimensions, and scores synthesized from Onvexia's corpus of analysed blockchain documents. Also includes a meta object pointing to the full OpenAPI spec.

Example use cases

Crypto token narrative monitoring

“Give me the NLP aspect breakdown for Solana from Onvexia — what themes and sentiment signals are showing up across their analysed documents?”

Pre-trade sentiment due diligence

“Before I add Chainlink to my portfolio, can you pull the aspect-level sentiment analysis for LINK from Onvexia so I can see what narratives are driving discussion?”

Cross-asset sentiment comparison

“Get me the NLP aspect scores for both Bitcoin and Ethereum from Onvexia — I want to compare the dominant themes and sentiment patterns across both assets.”

Technical details

Endpoint

GEThttps://onvexia.com/v1/nlp/aspects/%7Basset%7D

When to prefer

Choose this endpoint when you need narrative-level, NLP-derived aspect sentiment for a specific crypto asset rather than raw price or on-chain metrics. It is particularly valuable when you want to understand thematic and sentiment patterns drawn from a large document corpus — not just social media or news headline counts. Prefer it over generic sentiment APIs when you need blockchain-native coverage with labelled addresses and multi-chain context baked in.

Side effects

Unknown or unsupported asset identifier returns an empty data array
Asset not covered across the ten supported chains returns no results
Malformed asset path parameter returns a 400-level error
Payment not processed (x402 flow incomplete) results in a 402 Payment Required response
Rate limiting or quota exceeded may produce 429 errors

Input

Schema · Request body

Field	Type	Description
properties	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "data": [],
    "meta": {
      "docs": "https://onvexia.com/openapi.json",
      "endpoint": "/v1/nlp/aspects/{asset}"
    }
  }
}

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