← oblique.markets · all endpoints

POST /api/v1/paid/sentiment — $0.05 per call

Use when an agent needs a quick sentiment read on a passage, a headline or a topic before acting on it. Returns Sentiment label (positive, negative or neutral) with a confidence and a one-line summary for a text passage or a named topic. $0.05.

Try it

curl -i https://api.oblique.markets/api/v1/paid/sentiment
# → HTTP 402 with the exact payment requirements; pay, then retry with PAYMENT-SIGNATURE (x402) or Authorization: Payment (MPP)

Input schema

{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "Text to score directly",
   "examples": [
    "Settlement volume on Base doubled this quarter while prices held."
   ]
  },
  "topic": {
   "type": "string",
   "description": "Topic to gather and score instead of text",
   "examples": [
    "agent payments"
   ]
  }
 },
 "anyOf": [
  {
   "required": [
    "text"
   ]
  },
  {
   "required": [
    "topic"
   ]
  }
 ]
}

Example output

{
 "input": "text",
 "sentiment": {
  "sentiment": "positive",
  "confidence": 0.85,
  "summary": "The agent economy experienced growth with doubled settlement volume on Base and stable prices."
 },
 "model": "qwen/qwen3.7-flash",
 "analyzed_at": "2026-09-12T00:09:49.428Z",
 "message": "Sentiment analysis via x402 protocol"
}

Clients

Worked TypeScript/Python clients and MCP configs: oblique-markets/oblique-examples · Agent Skills: oblique-markets/skills

Pay per call with x402 (USDC on Base or Solana) or MPP (pathUSD on Tempo). No accounts. Machine doors: /.well-known/x402.json · /openapi.json · /llms-full.txt · MCP · humans: remote.observer