Sentiment analysis from top 50 crypto KOLs via x402 micropayment
What it does
The `/kol-sentiment` endpoint is part of Otto AI's x402 Agent Swarm, a suite of 30+ AI-powered services accessible via x402 V2 micropayments. This specific endpoint aggregates and analyzes sentiment from the top 50 crypto Key Opinion Leaders (KOLs), surfacing real trading signals and sentiment shifts from market movers on crypto Twitter.
The endpoint accepts a simple GET request with no required parameters and returns a JSON object containing KOL sentiment data. It costs $0.10 per call, payable in USDC on Base, Polygon, or Solana. The x402 V2 protocol supports EIP-3009 USDC transfers, Permit2 for any ERC-20, and Solana USDC. After an initial paid call, data endpoints like this one support Sign-In-With-X (SIWX) for 1 hour of free repeat access using a wallet signature. Every response includes a signed EIP-712 receipt as cryptographic proof of service delivery.
The endpoint sits within Otto AI's Market Intelligence agent category alongside related endpoints for crypto news, token analysis, DeFi yield opportunities, trending altcoins, and a comprehensive mega-report. The response schema is a generic `{status, data}` envelope — the specific structure of the `data` field for KOL sentiment is not documented in the OpenAPI spec. On-chain reputation for the Market Alpha agent is available via ERC-8004.
Capabilities
Use cases
- —Monitor sentiment shifts from top crypto influencers before making trading decisions
- —Feed KOL sentiment data into automated trading bots or alert systems
- —Combine with token-alpha or mega-report endpoints for comprehensive market intelligence
- —Track narrative changes among market movers for early trend detection
Fit
Best for
- —AI agents needing real-time crypto KOL sentiment via micropayment
- —Traders wanting aggregated influencer signals without manual Twitter monitoring
- —DeFi applications integrating market sentiment as an input signal
Not for
- —Users needing historical KOL sentiment time-series data (endpoint appears to return current snapshot only)
- —Non-crypto sentiment analysis or general social media monitoring
- —Users who cannot pay with USDC on Base, Polygon, or Solana
Quick start
# 1. GET the endpoint — receive 402 with PAYMENT-REQUIRED header
curl https://x402.ottoai.services/kol-sentiment
# 2. Decode the base64 PAYMENT-REQUIRED header to find accepts[] payment options
# 3. Sign USDC payment (EIP-3009 on Base/Polygon or Solana)
# 4. Retry with PAYMENT-SIGNATURE header
curl -H "PAYMENT-SIGNATURE: <signed_payment>" \
https://x402.ottoai.services/kol-sentimentExample
Response
{
"data": {
"description": "KOL sentiment data object (structure not documented in OpenAPI spec)"
},
"status": "success"
}Endpoint
Quality
Full OpenAPI spec with clear pricing and endpoint metadata. The endpoint is live (402 challenge captured). However, the response data schema is generic ({status, data}) with no documented fields for the actual KOL sentiment payload, and no example responses are provided. Documentation links return 404-like JSON errors.
Warnings
- —Response data schema is untyped — the 'data' field structure for KOL sentiment is not documented
- —No example response provided in the OpenAPI spec or crawled pages
- —External docs link (docs.useotto.xyz) was not crawled; /docs path on the service returns an error
- —Endpoint involves financial trading signals — users should not treat KOL sentiment as financial advice
Citations
- —Endpoint costs $0.10 per callhttps://x402.ottoai.services
- —Analyzes sentiment from top 50 crypto KOLs with real trading signalshttps://x402.ottoai.services
- —Supports USDC payment on Base, Polygon, and Solanahttps://x402.ottoai.services
- —SIWX provides 1 hour free repeat access after initial paymenthttps://x402.ottoai.services
- —Every call returns a signed EIP-712 receipthttps://x402.ottoai.services
- —On-chain reputation via ERC-8004https://x402.ottoai.services