Sentiment Classification

documents

Serving

Lexicon-based sentiment scoring: label a text positive, negative or neutral with a score and the positive and negative word hits behind it (AFINN-derived word list, not a trained model). POST /v1/sentiment with {text}. Deterministic. Pay per request in USDC; no account, no API key.

Endpoint: POST https://test.agent.pocket.network/v1/sentiment-classification/v1/sentiment
Price per call: $0.005 USD
Networks payable on: Base Sepolia (eip155:84532)
Protocol: rest

Calling it

The first call returns 402 Payment Required with the terms. Sign for those terms and retry the same request with the payment attached.

Example request

A real, working call — the request the service card verifies against.

curl -X POST https://test.agent.pocket.network/v1/sentiment-classification/v1/sentiment \
  -H 'content-type: application/json' \
  -d '{"text":"great service"}'

Example response

The response this call returned, captured 2026-09-25 15:53:29 UTC.

{
  "portal": {
    "provenance": "third-party-supplier",
    "serviceId": "sentiment-classification",
    "schemaCheck": "unchecked"
  },
  "data": {
    "label": "positive",
    "score": 1,
    "positive_hits": 1,
    "negative_hits": 0,
    "lexicon": "lexicon-v2-enhanced",
    "deterministic": true,
    "service": "sentiment-classification"
  }
}

Try it

Make one real paid call from your own wallet — about $0.005 on Base Sepolia (eip155:84532). The wallet signs; nothing here holds a key. You'll see exactly what the service answers.

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EndpointRequest body

Supported methods

Methods the registry lists for this service. The portal forwards any call as sent; the supplier decides what it answers, and a delivered answer is settled.

Methods Sentiment Classification accepts, and whether each reads or writes.
Method	Effect
`GET /v1/health`	read
`GET /v1/version`	read
`POST /v1/sentiment`	read

Schemas

Published by the service itself. The example above is generated from these.

Request schema

{
  "type": "object",
  "description": "The request body for POST /v1/sentiment.",
  "properties": {
    "text": {
      "type": "string",
      "description": "The text to score."
    }
  },
  "required": [
    "text"
  ]
}

Response schema

{
  "type": "object",
  "description": "For POST /v1/sentiment, a JSON object with label, score, positive_hits, negative_hits and the lexicon used. The exact shape is the service's own and is not pinned here; errors return a JSON object with an `error` field."
}