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Wintergreen x402 Trust Badge
x402
Wintergreen x402 Trust Badge is a paid API for AI agents from x402.wintergreen.uk, paid per call via x402, $0.01/call, status down (last checked 2026-10-24).
Returns a trust/verification badge for a given x402 endpoint URL, confirming its payment-gated API is legitimate and operational.
Price / call$0.01
Success—
StatusDown
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
A trust/verification badge object indicating whether the given x402 endpoint URL has been verified as legitimate and operational, potentially including a P2D badge status and endpoint verification score. The response schema is currently unspecified, suggesting a JSON object with trust status fields.
Example use cases
Pre-payment endpoint safety check
“Before I pay for that crypto signals API, can you verify its x402 trust badge at https://x402.someprovider.io/signals to make sure it's legitimate?”
Agent fleet endpoint vetting
“I'm building an agent that calls multiple x402 APIs — can you check the trust badge for https://tradingdata.example.com/api/v1/feed to confirm it's a verified endpoint?”
Marketplace listing verification
“I found an x402 endpoint listed on x402scan — can you pull the Wintergreen trust badge for https://x402.newprovider.uk/api/v1/prices to see if it's been verified?”
Technical details
Endpoint
GEThttps://x402.wintergreen.uk/api/v1/trust/badge?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs to verify the legitimacy of an x402 payment-gated API before committing USDC. It is specifically designed for the x402 protocol ecosystem and provides Wintergreen's P2D badge — use it instead of generic uptime checkers or domain validators when the trust question is specifically about x402 payment endpoint authenticity.
Side effects
- Unverified or unknown URL returns no badge or a failed verification status
- Malformed URL input causes a 400 bad request
- Payment not included or EIP-712 signature invalid causes HTTP 402 with payment instructions
- Endpoint temporarily unavailable returns 5xx error
- URL for a non-x402 endpoint returns a negative or absent trust result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Output
Schema · Response
{}Tags
x402
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