news_summarizer

{
  "type": "object",
  "properties": {
    "source_url": {
      "type": "string"
    },
    "executive_summary": {
      "type": "string"
    },
    "market_impact_weight": {
      "type": "number"
    }
  },
  "required": [
    "executive_summary",
    "market_impact_weight"
  ]
}

Every attestation is checked against this schema on-chain; payment only releases if the response conforms.

from logos.client import LogosClient

client = LogosClient(discovery_url="https://logos-api.discretliaison.com")
resp = await client.query(
    service_type="news_summarization",
    payload={"source_url": "https://…/article"},
)
print(resp.payload, resp.trace_cid)

pip install logos-arc