graphadvocate.com

Cross-venue arbitrage spread between Polymarket and Limitless on a topic. POST {topic, limit?}. Pulls matching markets from Polymarket's public Gamma API and Limitless's REST search, pairs them by closest-price match, computes per-pair yes-mid spread + arbitrage direction. GA assembles a JOIN that single-venue passthroughs can't return. Naive pair-up — agent should confirm semantic match before sizing.

Hyperliquid trader skill score. POST {user}. Returns derived metrics: skill_score (0-100), classification (sharp/neutral/retail), liquidation_count + rate, funding_paid_per_volume, profit_factor, sample_size_trades. Wraps Pinax /v1/hyperliquid/users with compute the upstream doesn't provide. For trading bots vetting copy-trade signals or sizing-the-room before entering a perp position.

Live sports-market mispricing detector. POST {milestone, market?}. Combines Kalshi's public play-by-play game_stats (Football/Basketball/Soccer/Hockey/Baseball/WNBA) with market candlesticks over the last hour to flag latency-arb windows when in-game momentum and market price diverge. Returns momentum_score, market_reaction_pct, and a directional latency-arb signal.

Polymarket trader skill score — pure JSON for agents. POST {wallet}. Returns skill_score (0-100, Sharpe-weighted by confidence), classification (sharp/neutral/retail), win_rate, sample_size, max_drawdown, realized + unrealized PnL. No lot reconstruction — for batch screening top holders before entering a market or mirroring a copy-trade.

Paid x402 endpoint for arbitrage opportunities between prediction-market platforms.

Recent fill stream for a Hyperliquid perp coin. POST {coin, n}. Returns the last N fills (direction, side, price, size, notional, fee, trader address) plus an aggregate summary (buy/sell notional split, whale_fill_count for fills ≥ $10k, avg price). Distinct from hl-screen (top traders by lifetime volume) — this is recent trade events as they happen, for whale-watching + flow-following bots.

Vault evaluator for Hyperliquid copy-trading vehicles. POST {vault}. Returns composite vault_quality_score (0-100) factoring: leader's own trading skill, depositor concentration (top-1 share = whale-dependent), redemption pressure (withdrawals/deposits ratio), commission rate. Plus lifetime stats and top 5 depositors. Built for copy-trade-vetting bots — NO equivalent service exists; vault data is unique to perps DEXs.

On-chain x402 settlement summary for an address from the decentralized x402 Base subgraph on The Graph Network. POST {address}. Returns lifetime stats as payer + recipient (totalPayments, totalVolume, first/last seen), recent 10 payments each direction, facilitator metadata if applicable, plus indexed_through_block for freshness. Decentralized, verifiable. Distinct from /ask. $0.01 USDC on Base.

Hyperliquid counterparty risk. POST {user}. Returns risk_level (low/medium/high), liquidation_count + rate, funding_paid_per_volume (consistent leverage signal), and a recent_24h_outflow_flag (drained collateral). For MM/copy-trade agents pricing adverse selection.

Kalshi consensus-probability trajectory. POST {event}. Wraps Kalshi's unique /events/{ticker}/forecast_history (no other PM exposes formatted forecast percentile history). Returns slope-per-hour over 24h and 3d, acceleration signal (regime change indicator), volatility band, days to resolve, and a stable/accelerating-up/accelerating-down interpretation.

Full Hyperliquid PnL report. POST {user}. Returns derived skill metrics + open positions (per-coin) + recent activity feed (deposits/withdrawals/funding/liquidations). For agents that need to inspect specific positions, audit a trader, or feed into deeper reputation scoring.

Onchain data router for AI agents. Plain-English → working GraphQL or REST. 15.5K+ subgraphs on 8 chains. Uniswap, Aave, Compound, ENS, Polymarket, Limitless, Predict.fun, ERC-8004 discovery. Identified senders (include `sender` wallet in A2A metadata): 3 free /route /day, then $0.01 USDC via x402 on Base. Anonymous senders pay $0.01 from call 1. /polymarket + /hyperliquid trader-intel paid from call 1 ($0.01-$0.10).

Polymarket full PnL report. POST {wallet, method?}. Returns derived skill metrics + per-lot realized PnL (FIFO/LIFO/HIFO matching, default fifo) + open positions with mark-to-market unrealized. For agents that need to inspect specific trades, audit, or feed into a deeper reputation signal.

Size-the-room for a Hyperliquid market. POST {coin, n?}. Returns the top N (default 10, max 25) traders on a coin ranked by volume, each with skill_score + classification + liquidation_count. Pre-trade check for MM agents: 'who am I about to be against on this perp, and have they been liquidated before?' Coin format: BTC, @107 (spot), xyz:SILVER.

Polymarket ghost-fill counterparty risk. POST {wallet}. Returns wallet_type (eoa | smart_account_erc1967 | legacy_smart_account), ghost_fill_risk (low/medium/high), 24h collateral outflow flag. Deposit wallets (POLY_1271, sig type 3) are ghost-fill-immune by design. For MM agents pricing adverse selection before quoting against a maker.

Cross-venue SPOT vs PERP basis. POST {coin, chain?}. Joins Uniswap spot (on-chain, from the subgraph) against the Hyperliquid perp last-fill price and returns basis_pct + a signal (perp_premium / perp_discount / aligned). A JOIN a single-venue passthrough structurally cannot return. Positive basis means longs are crowded and typically paying funding.

Who is trading a token on Uniswap, and which way. POST {token, chain?, limit?}. Aggregates a recent swap sample on the deepest venue by trader EOA and returns per-wallet buys/sells/volume_usd/net_token plus a stance (accumulator / distributor / accumulating / distributing). Wallets are profiling input — feed them to /agent/score to find out who is on the other side.