{"endpoint":"/api/chain/compare","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":"$0.25","description":"Compare 2-8 blockchain chains side-by-side with live TVL data from DeFiLlama. Returns ranked comparison by TVL, finality time, chain type, native token, and composite score.","llm_usage_prompt":"Call this endpoint when deciding which blockchain to deploy to, bridge funds to, or recommend for a use case. Provide an array of 2-8 chain names (e.g., 'ethereum', 'arbitrum', 'optimism', 'polygon', 'base', 'zksync'). Returns a ranked comparison with each chain's type (L1/Optimistic Rollup/ZK Rollup/Sidechain), current TVL in USD from DeFiLlama, finality time, native token, and a composite score out of 50. Use this to make data-driven chain selection decisions based on security, liquidity, and settlement speed trade-offs. Costs $0.25 via x402.","params":{"chains":"string[] -- array of 2-8 chain name strings (e.g. 'ethereum', 'arbitrum', 'base')"},"exampleRequest":{"chains":["ethereum","arbitrum","optimism","base"]},"exampleResponse":{"comparison":[{"chain":"ethereum","type":"L1","tvl":58000000000,"finality":"~12 min (64 slots)","score":50,"native_token":"ETH"},{"chain":"arbitrum","type":"Optimistic Rollup","tvl":3200000000,"finality":"~7 days challenge period","score":43,"native_token":"ETH"}],"chain_count":4,"ranking":[{"rank":1,"chain":"ethereum","score":50},{"rank":2,"chain":"arbitrum","score":43}],"response_time_ms":450,"timestamp":"2026-03-06T12:00:00.000Z"}}