{"uid":"cap_3M0DZQ7MT_I301_VLXUzj","slug":"wintergreen-x402-trust-badge-a5b67088","name":"Wintergreen x402 Trust Badge","description":"Payment-gated crypto trading intelligence for AI agents.\n    \n## Categories\n- **Hyperliquid Signals**: Real-time funding divergence, lead-lag correlation, liquidation clusters, session volume area levels\n- **Quant Methodology**: Backtesting walk-forward validation, strategy generation with kill battery (19 rules), risk management with Kelly sizing, regime detection, execution frameworks, agent orchestration\n- **Market Insights**: 22 crypto microstructure observations — funding, liquidation, orderbook, regime, flow, anomaly\n- **Power Markets**: ERCOT field guide, merit-order model, duck curve analysis\n- **Career Guides**: Firefighter oral board prep, medical coding, ATSA, contractor estimating\n- **Trust Scoring**: x402 endpoint verification, P2D badges\n\n## Payment\nAll paid endpoints return HTTP 402 with USDC on Base (eip155:8453). \nSign EIP-712 TransferWithAuthorization and retry with X-PAYMENT header.\nPayTo: 0xAe9834d71F1Bd989A0dc17593451af823E31CeeD","url":"https://x402.wintergreen.uk/api/v1/trust/badge?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string"}}},"responseSchema":{},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_bmA_jKNG2zaC6OJ3uScKR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a trust/verification badge for a given x402 endpoint URL, confirming its payment-gated API is legitimate and operational.","exampleAgentPrompt":"Can you check if the x402 endpoint at https://example.com/api/v1/data has a valid Wintergreen trust badge before I send a USDC payment to it?","exampleUseCases":[{"title":"Pre-payment endpoint safety check","prompt":"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?"},{"title":"Agent fleet endpoint vetting","prompt":"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?"},{"title":"Marketplace listing verification","prompt":"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?"}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-25T11:26:21.397Z","isFirstParty":false,"canonicalSlug":"wintergreen-x402-trust-badge-a5b67088"}