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Wintergreen x402 Content Broker
x402
Wintergreen x402 Content Broker is a paid API for AI agents from x402.wintergreen.uk, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-08).
Delivers payment-gated crypto trading intelligence, quant methodology guides, market microstructure insights, and niche career/power-market content via x402 micropayment on Base.
Price / call$0.002
Success—
StatusUnknown
How this service works
Payment-gated crypto trading intelligence for AI agents. ## Categories - **Hyperliquid Signals**: Real-time funding divergence, lead-lag correlation, liquidation clusters, session volume area levels - **Quant Methodology**: Backtesting walk-forward validation, strategy generation with kill battery (19 rules), risk management with Kelly sizing, regime detection, execution frameworks, agent orchestration - **Market Insights**: 22 crypto microstructure observations — funding, liquidation, orderbook, regime, flow, anomaly - **Power Markets**: ERCOT field guide, merit-order model, duck curve analysis - **Career Guides**: Firefighter oral board prep, medical coding, ATSA, contractor estimating - **Trust Scoring**: x402 endpoint verification, P2D badges ## Payment All paid endpoints return HTTP 402 with USDC on Base (eip155:8453). Sign EIP-712 TransferWithAuthorization and retry with X-PAYMENT header. PayTo: 0xAe9834d71F1Bd989A0dc17593451af823E31CeeD
Output
Returns structured content documents for the requested tag — which may include trading signals (funding divergence, liquidation clusters, lead-lag correlations, session volume levels), quant methodology writeups (backtesting, kill battery rules, Kelly sizing, regime detection), crypto microstructure observations, power market analyses (ERCOT, merit-order, duck curve), or career guides, depending on the tag queried. Access is gated behind a successful EIP-712 USDC payment on Base.
Example use cases
Hyperliquid real-time signal retrieval
“Fetch me the latest Hyperliquid funding divergence and lead-lag correlation signals from Wintergreen — pay the micropayment on Base and give me the current session volume area levels.”
Quant strategy methodology deep-dive
“I need the full quant backtesting walk-forward validation guide from Wintergreen, including the 19-rule kill battery and Kelly sizing framework — unlock it with the USDC payment and send me the content.”
ERCOT power market field guide
“Get me the Wintergreen ERCOT merit-order model and duck curve analysis — pay the $0.002 on Base and return the full power markets field guide.”
Technical details
Endpoint
POSThttps://x402.wintergreen.uk/api/v1/tag/%7Btag%7DWhen to prefer
Choose this endpoint when an AI agent needs on-demand, micropayment-gated crypto trading intelligence (especially Hyperliquid-specific signals), quant methodology guides, or niche domain content (power markets, career guides) without a subscription. Ideal for agents that support x402 payment flows on Base and need pay-per-call access to specialized content not available from free APIs or general knowledge bases.
Side effects
- HTTP 402 returned if payment header is missing or invalid — agent must sign EIP-712 TransferWithAuthorization and retry
- Invalid or unrecognized tag returns an error or empty response
- Insufficient USDC balance on Base prevents payment authorization
- Stale or replayed payment signature rejected by the broker
- Network latency on Base blockchain delays payment confirmation
Tags
x402
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