{"id":"33cb2aa4-aa80-4baf-b238-3536f108e8d2","shortId":"vXf5EV","kind":"x402","title":"Copy trading signals derived from on-chain wallet activity, paid per call via x402 on Base.","tagline":"Copy trading signals derived from on-chain wallet activity, paid per call via x402 on Base.","description":"The `/api/wallet/copytrading` endpoint is part of DeFi Shield, a suite of 69 paid API endpoints providing security intelligence and DeFi analytics to autonomous AI agents. This specific endpoint generates copy trading signals by analyzing wallet activity on-chain. It is one of six Wallet Intelligence endpoints offered by the platform.\n\nPayment is handled via the x402 protocol using USDC on Base. The listed price is $0.75 per call. Agents send a POST request with an x402 payment header, the facilitator verifies USDC payment on Base, and the endpoint returns JSON results upon successful payment settlement. Every endpoint also supports a free GET request for discovery purposes, returning metadata and an `llm_usage_prompt` to help agents understand the endpoint's capabilities.\n\nDeFi Shield provides agent discovery via `/.well-known/agent-card.json`, a health endpoint at `/api/health` listing all endpoints and pricing, and analytics at `/api/analytics`. No OpenAPI schema or detailed documentation page was found during crawling (the `/docs` path returns 404), so the exact request/response schema for this endpoint is not documented in the available material. The probe confirmed the endpoint is live, returning a 402 status on POST as expected for x402 endpoints, though the challenge object was empty, which may indicate a minimal x402 implementation.","tags":[],"capabilities":["copy-trading-signals","wallet-activity-analysis","x402-payment","usdc-on-base","defi-intelligence","on-chain-analytics","agent-to-agent-commerce"],"categories":["defi","crypto","trading"],"synonyms":["copy trade","wallet tracking","trade mirroring","smart money following","whale copy trading","wallet signals","on-chain copy trading"],"warnings":["No OpenAPI or JSON schema available for request/response validation","The x402 challenge object returned empty — payment parameters not fully verifiable from probe","Documentation page (/docs) returns 404; no detailed endpoint docs found","Request and response schemas are inferred, not confirmed"],"endpointUrl":"https://defi-shield-hazel.vercel.app/api/wallet/copytrading","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x0814d35F25F2EF3Dffa4aEF4d137558D5E51Ed7b","amount":"750000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is confirmed live (402 on POST), and the landing page provides pricing and a general description. However, the x402 challenge object was empty, no OpenAPI schema exists, no detailed docs are available, and the exact request/response format is inferred from sibling endpoints rather than documented. The example request is extrapolated from the quick-start pattern shown on the 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'/api/analytics':177 '/api/health':168 '/api/wallet/copytrading':36 '/docs':190 '0.75':101 '402':218 '404':193 '69':46 'activ':10,27,70 'agent':59,104,151,160 'agent-to-agent-commerce' 'ai':58 'also':133 'analyt':55,175 'analyz':68 'api':48 'autonom':57 'avail':207 'base':17,34,96,120 'call':13,30,103 'capabl':156 'chain':8,25,73 'challeng':229 'confirm':211 'copi':1,18,64 'copy trade' 'copy-trading-signals' 'crawl':188 'defi':41,54,157 'defi-intelligence' 'deriv':4,21 'detail':182 'discoveri':140,161 'document':183,204 'empti':232 'endpoint':37,49,62,81,123,132,154,166,171,201,213,226 'everi':131 'exact':196 'expect':223 'facilit':115 'found':186 'free':136 'generat':63 'get':137 'handl':88 'header':113 'health':165 'help':150 'implement':239 'indic':235 'intellig':52,80 'json':125 'list':98,169 'live':215 'llm':146 'materi':208 'may':234 'metadata':143 'minim':237 'object':230 'offer':82 'on-chain':6,23,71 'on-chain copy trading' 'on-chain-analytics' 'one':76 'openapi':179 'page':184 'paid':11,28,47 'part':39 'path':191 'payment':86,112,118,129 'per':12,29,102 'platform':85 'post':107,221 'price':99,173 'probe':210 'prompt':148 'protocol':92 'provid':50,159 'purpos':141 'request':108,138 'request/response':197 'result':126 'return':124,142,192,216 'schema':180,198 'secur':51 'send':105 'settlement':130 'shield':42,158 'signal':3,20,66 'six':78 'smart money following' 'specif':61 'status':219 'success':128 'suit':44 'support':134 'though':227 'trade':2,19,65 'trade mirroring' 'understand':152 'upon':127 'usag':147 'usdc':94,117 'usdc-on-base' 'use':93 'verifi':116 'via':14,31,89,162 'wallet':9,26,69,79 'wallet signals' 'wallet tracking' 'wallet-activity-analysis' 'whale copy trading' 'x402':15,32,91,111,225,238 'x402-payment'","prices":[{"id":"ca90c8ff-3137-419d-aa9a-ed91f4c75508","listingId":"33cb2aa4-aa80-4baf-b238-3536f108e8d2","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x0814d35F25F2EF3Dffa4aEF4d137558D5E51Ed7b","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x0814d35F25F2EF3Dffa4aEF4d137558D5E51Ed7b","amount":"750000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:41.093Z"}],"sources":[{"listingId":"33cb2aa4-aa80-4baf-b238-3536f108e8d2","source":"x402_bazaar","sourceId":"https://defi-shield-hazel.vercel.app/api/wallet/copytrading","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:41.093Z","lastSeenAt":"2026-04-22T05:32:33.973Z"}],"details":{"listingId":"33cb2aa4-aa80-4baf-b238-3536f108e8d2","quickStartSnippet":"# Free discovery (GET returns endpoint metadata)\ncurl https://defi-shield-hazel.vercel.app/api/wallet/copytrading\n\n# Paid request (requires x402 payment header)\ncurl -X POST https://defi-shield-hazel.vercel.app/api/wallet/copytrading \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -d '{\"address\": \"0x...\"}'","exampleRequest":{"address":"0x1234567890abcdef1234567890abcdef12345678"},"exampleResponse":null,"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"DeFi Shield offers 69 paid API endpoints for security intelligence via x402 on Base","source_url":"https://defi-shield-hazel.vercel.app"},{"claim":"The /api/wallet/copytrading endpoint provides copy trading signals from wallet activity at $0.75 per call","source_url":"https://defi-shield-hazel.vercel.app"},{"claim":"Payment is via USDC on Base using x402 protocol with X-PAYMENT header","source_url":"https://defi-shield-hazel.vercel.app"},{"claim":"Every endpoint supports free GET for discovery with llm_usage_prompt","source_url":"https://defi-shield-hazel.vercel.app"},{"claim":"Agent discovery available at /.well-known/agent-card.json","source_url":"https://defi-shield-hazel.vercel.app"}],"useCases":["AI agents identifying profitable wallets to mirror trades from","Automated trading bots sourcing copy trading signals from on-chain activity","Portfolio management agents discovering alpha by tracking successful traders","DeFi dashboards surfacing copy-worthy wallet behavior for users","Multi-agent systems sharing wallet intelligence for coordinated trading strategies"],"bestFor":["AI agents needing programmatic copy trading signals via pay-per-call","Autonomous DeFi agents operating on Base with USDC","Developers building copy trading features who need on-chain wallet analysis"],"notFor":["Users needing free or subscription-based copy trading data","Applications requiring non-crypto or traditional finance copy trading signals","Projects that need detailed API documentation before integration"],"kindDetails":{},"updatedAt":"2026-04-22T02:55:02.305Z"}}