{"endpoint":"/api/monitor/whale","method":"POST","service_trust":"https://defi-shield-hazel.vercel.app/api/trust-signal","free_check":{"endpoint":"https://defi-shield-hazel.vercel.app/api/free/token-check","method":"POST","price":"FREE","note":"Try before you buy — free basic token safety check with risk math."},"also_available_on":{"virtuals_acp":{"agent":"Authensor","agent_id":18805,"offerings":["pre_trade_safety","token_deep_scan","wallet_report","batch_seal"],"marketplace":"https://app.virtuals.io/acp/scan/agents","note":"Same service, accessible to 18,000+ autonomous agents on Virtuals Protocol."},"mcp_server":{"package":"devsecure-mcp","install":"npx devsecure-mcp","tools":67,"note":"Install as MCP server in Claude, Cursor, or any MCP-compatible client for direct tool access."},"bazaar":"https://defi-shield-hazel.vercel.app/.well-known/x402","agent_card":"https://defi-shield-hazel.vercel.app/.well-known/agent-card.json"},"powered_by":"DeFi Shield by Authensor","price":"$0.50","description":"Detect large whale transfers and accumulation/distribution patterns for a specific token on Base. Analyzes the 100 most recent transfers from BaseScan to identify whale activity.","llm_usage_prompt":"Call this endpoint when you need early warning about large holder activity that could move token prices. Provide token_address (0x, 42 chars). Returns: up to 20 large transfers (from, to, value, tx_hash, timestamp), total transfers analyzed, net flow direction (accumulation/distribution/neutral), whale activity score (0-100), unique senders, and unique receivers. A high whale_activity_score (>60) with 'distribution' flow indicates potential sell pressure. 'accumulation' with high score suggests whale buying. Use this before entering or exiting a position to assess whale activity risk. Costs $0.50 via x402.","params":{"token_address":"string -- Token contract address to monitor (0x + 40 hex chars)"},"exampleRequest":{"token_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"exampleResponse":{"token_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","large_transfers":[{"from":"0xabc...123","to":"0xdef...456","value_raw":"50000000000","tx_hash":"0x789...abc","timestamp":"2026-03-06T11:30:00.000Z","is_large":true}],"large_transfer_count":3,"total_transfers_analyzed":100,"net_flow_direction":"accumulation","whale_activity_score":45,"unique_senders":67,"unique_receivers":72,"response_time_ms":890,"timestamp":"2026-03-06T12:00:00.000Z"}}