Lending Liquidation Sentinel — finds Aave V3 positions on Base close to liquidation. Returns positions with health factor below threshold, with collateral/debt breakdown and estimated liquidation profit. Supports ?protocol=aave&chain=base&threshold=1.1&demo=true.

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MEV Scanner — detects MEV activity (sandwich attacks, arbitrage) in recent blocks by analyzing swap density and transaction patterns. Params: ?chain=base&blocks=10. Demo: ?demo=true.

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Latest crypto headlines from aggregated RSS feeds

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Advanced Gas Tracker for Base — historical gas analysis with 1h/6h/24h averages, percentiles (P25/P50/P75/P95), min/max, trend detection (rising/falling/stable), and best time to transact prediction. Supports ?chain=base&hours=24&demo=true.

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Find the best yield opportunities (simulated)

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Approximate Twitter/X sentiment for a query via web search

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Fresh Markets Watch — newly created DeFi pools/markets sorted by APY with TVL, protocol, token pair, and risk warnings for new pools. Supports ?chain=base&hours=24&demo=true.

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Real-time DEX volume comparison on Base: UniswapV3, Aerodrome, BaseSwap, SushiSwap. Returns 24h volume per DEX, top pairs by volume, volume trends. Data from DeFiLlama + DexScreener.

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Track Base network fee trends over time — avg gas per block, cheapest hours, L1 vs L2 comparison. Useful for agents timing their transactions.

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Scan Aave V3 + Moonwell on Base for positions with health factor < 1.5. Returns accounts, collateral/debt, estimated liquidation bonus. Essential for liquidation bots.

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Base sequencer pending transaction feed — large pending swaps, MEV opportunities, frontrunning signals. Base uses a centralized sequencer so this shows the sequencer queue rather than a traditional mempool.

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Real-time TVL comparison for all Base DeFi protocols — sorted by TVL, 24h/7d change, risk tier. From DefiLlama. Unique to httpay.xyz.

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Monitor stablecoin prices vs peg, 24h supply flows, and depeg alerts on Base. Covers USDC, USDT, DAI, EURC, USDbC. Uses CoinGecko + DeFiLlama.

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Pre-swap MEV sandwich risk scoring. Params: ?tokenIn=0x...&tokenOut=0x...&amountUsd=1000&dex=uniswap. Returns riskScore 0-100, verdict LOW/MEDIUM/HIGH, and mitigation factors. Uses GoPlus + DexScreener.

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Domain WHOIS lookup. Returns registrar, creation date, expiry date, nameservers, and status. Powered by the whois npm package (no external API).

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Web search — returns top 10 results (title, URL, snippet) for any query. Powered by Brave Search.

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Crypto 'Would You Rather' scenarios

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Which Wojak are you today?

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Real-time x402 transaction monitor — fetches recent USDC transfers facilitated by known x402 facilitators on Base

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Complete directory of all known x402-enabled services with pricing, categories, and status. Curated by httpay.xyz.

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Aggregated x402 ecosystem stats — total services, volume estimates, growth metrics. EXCLUSIVE to httpay.xyz.

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Real DeFi yield intelligence via DefiLlama. Enriched with gas-adjusted net APY, protocol risk tier (A-D), and IL estimates. Params: ?chain=base&minTvl=100000&minApy=5. No AI hallucinations — all data from DefiLlama pools API.

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Real-time large transfer monitoring on Base — track whale movements for USDC, WETH, and cbBTC over the last N blocks. Params: ?minUsd=10000&token=USDC&limit=20

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Convert a hex color code to RGB and HSL values. Pass ?hex=FF5733 (with or without #). Returns r, g, b, h, s, l values and CSS strings. Uses Node.js built-in math. Zero external dependencies.

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Query all ERC-8004 registered agents on Base. Filter by capability, paginate with limit/offset. Returns structured agent list with on-chain data and parsed metadata.

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