Market & Brand Sentiment

Sentiment analysis for any topic, brand, coin or ticker. Aggregates web/news/blog citations and returns polarity counts (positive/negative/neutral), emotional connotations (anger, happiness, love, sadness, fun, share) and a derived sentiment score in [-1,1]. For crypto/market sentiment, brand monitoring and opinion-mining agents.

SearchLiveeip155:8453Exactvia cdp

https://agent-commerce-factory-jm.austriaeast.cloudapp.azure.com/v1/sentiment/search

SentimentSentiment-analysisCrypto-sentimentMarket-sentimentSocial-sentiment

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 10 snapshots so far.

$0.81

Verified settled volume

125 settlements proven x402 by their on-chain EIP-3009 marker.

$0.050

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-08-23 16:18Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xCe339395d7f2ea5a5009022EF1C392Fb208a989E

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "hint": "Use a supported wallet to pay for this resource using one of the supported payment methods returned in the WWW-Authenticate header. See https://mpp.dev/tools/wallet.md",
  "type": "https://paymentauth.org/problems/payment-required",
  "title": "Payment Required",
  "detail": "Payment is required (Sentiment analysis for any topic, brand, coin or ticker. Aggregates web/news/blog citations and returns polarity counts (positive/negative/neutral), emotional connotations (anger, happiness, love, sadness, fun, share) and a derived sentiment score in [-1,1]. For crypto/market sentiment, brand monitoring and opinion-mining agents.).",
  "status": 402,
  "challengeId": "fdoiCPssaOZQh2jWyDmaRSlQPoY8UiqBNLqpNDf_l7g"
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.05USDC≈ $0.05 USD

on Base · exact scheme

Pay 0.05 USDC on Base to 0xCe33…a989E. The signed payment is good for 5 minutes.

Paid to: 0xCe33…a989E
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 50000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xCe339395d7f2ea5a5009022EF1C392Fb208a989E",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "query": "bitcoin",
          "pageTypes": [
            "news",
            "blogs"
          ]
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "query": "bitcoin",
          "route": "sentiment.search",
          "machine": "portfolio",
          "sentiment": {
            "score": 0.32,
            "emotions": {
              "fun": 260,
              "love": 180,
              "anger": 120,
              "share": 310,
              "sadness": 90,
              "happiness": 540
            },
            "polarity": {
              "neutral": 900,
              "negative": 400,
              "positive": 1200
            }
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "query"
              ],
              "properties": {
                "query": {
                  "type": "string",
                  "maxLength": 300,
                  "minLength": 1
                },
                "pageTypes": {
                  "type": "array",
                  "items": {
                    "enum": [
                      "ecommerce",
                      "news",
                      "blogs",
                      "message-boards",
                      "organic"
                    ],
                    "type": "string"
                  }
                }
              }
            },
            "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"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-08-23 16:18Z
Last indexed by Roundhouse: 2026-09-04 20:20Z
Last enriched (probe, favicon, geo): 2026-09-01 02:16Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 402

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 10 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service Market & Brand Sentiment and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Market%20%26%20Brand%20Sentiment'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://agent-commerce-factory-jm.austriaeast.cloudapp.azure.com/v1/sentiment/search, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://app.roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://app.roundhouseai.io/skill.md first — it is the whole procedure.