# Services from x402-services-production.up.railway.app on Zero

> x402-services-production.up.railway.app serves 147 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/x402-services-production.up.railway.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-services-production.up.railway.app/health.json

## Services

- [Black-Scholes Option Pricing & Greeks Calculator](https://www.zero.xyz/c/black-scholes-option-pricing-greeks-calculator-33f7050d/llms.txt): $0.05/call via x402. Computes fair value and full Greeks (delta, gamma, vega, theta, rho) for any option using Black-Scholes, including unlisted strikes and crypto options
- [x402 Pay-Per-Call LLM Chat Completion](https://www.zero.xyz/c/x402-pay-per-call-llm-chat-completion-bec30d9e/llms.txt): $0.005/call via x402. Provides OpenAI-compatible LLM chat completion via multiple fast models, payable per-call in USDC/USDG with no accounts or API keys required.
- [x402 Transaction Safety Guardrail](https://www.zero.xyz/c/x402-transaction-safety-guardrail-c44e9e17/llms.txt): $0.05/call via x402. Pre-signing safety check that decodes a pending EVM transaction and returns SAFE/CAUTION/DANGER with reasons, detecting sanctioned addresses, drainer patterns, unlimited approvals, and revert risk
- [x402 Calldata Safety Decoder](https://www.zero.xyz/c/x402-calldata-safety-decoder-6695bc13/llms.txt): $0.05/call via x402. Decodes raw EVM calldata into its function name and arguments, and flags dangerous transaction patterns like unlimited approvals, setApprovalForAll, permit, and transferFrom.
- [x402 Options Chain](https://www.zero.xyz/c/x402-options-chain-3e67b3e6/llms.txt): $0.005/call via x402. Returns the full options chain (calls and puts at every strike) for BTC, ETH, or SOL for a given expiry, including mark price, implied volatility, and open interest.
- [EVM Token Honeypot Detection](https://www.zero.xyz/c/evm-token-honeypot-detection-ea32d385/llms.txt): $0.005/call via x402. Checks whether a given EVM token contract address is a honeypot (buy-but-can't-sell trap) on a specified chain
- [Robinhood Chain Tokenized Stock Basis (RH Basis)](https://www.zero.xyz/c/robinhood-chain-tokenized-stock-basis-rh-basis-3262b634/llms.txt): $0.05/call via x402. Returns the real-time price dislocation (basis) between a tokenized stock on Robinhood Chain and the underlying equity, enabling arbitrage and gap detection for AI trading agents.
- [Solana Snipe Safety Check — EVM Token Honeypot & Rug Detection](https://www.zero.xyz/c/solana-snipe-safety-check-evm-token-honeypot-rug-detection-34b8a862/llms.txt): $0.005/call via x402. Analyzes an EVM token contract address for honeypot and rug-pull risks across major EVM chains, returning a safety assessment before trading
- [x402 Pre-flight Transaction Safety Check](https://www.zero.xyz/c/x402-pre-flight-transaction-safety-check-825c4d8f/llms.txt): $0.01/call via x402. Analyzes any blockchain transaction before signing and returns a GO/CAUTION/STOP verdict covering success simulation, safety screening, true cost, and wallet balance changes
- [DeFi Lending Rate Aggregator](https://www.zero.xyz/c/defi-lending-rate-aggregator-88a2e511/llms.txt): $0.005/call via x402. Returns the best supply/lending APYs for a given asset across Aave, Compound, Morpho, Spark and other protocols, ranked by yield with TVL data.
- [Cross-Venue Perpetual Funding-Rate Arbitrage Signal](https://www.zero.xyz/c/cross-venue-perpetual-funding-rate-arbitrage-signal-757cefe1/llms.txt): $0.005/call via x402. Returns annualized funding rates for a coin across Hyperliquid, Binance, and Bybit, plus the spread and the delta-neutral long/short leg to capture the arbitrage.
- [x402 Taint Trace — Sanctioned Funds Detection on Base](https://www.zero.xyz/c/x402-taint-trace-sanctioned-funds-detection-on-base-f5f5b3fd/llms.txt): $0.05/call via x402. Traces whether an EVM wallet's incoming funds originate from a sanctioned address within N hops on Base network
- [Base Wallet Activity Summary](https://www.zero.xyz/c/base-wallet-activity-summary-60a4cf18/llms.txt): $0.003/call via x402. Returns a behavioral profile of an EVM wallet on Base: recent transactions, top methods called, distinct counterparties, and latest actions
- [Base Transaction Status & Receipt Lookup](https://www.zero.xyz/c/base-transaction-status-receipt-lookup-17b339b8/llms.txt): $0.003/call via x402. Looks up on-chain transaction status and receipt details on Base given a transaction hash, returning confirmations, success/fail, from/to addresses, value, fee, and method called.
- [x402 Token Technical Indicators](https://www.zero.xyz/c/x402-token-technical-indicators-2af0247c/llms.txt): $0.005/call via x402. Computes RSI(14), SMA20/50, EMA12/26, and MACD technical indicators for a cryptocurrency from daily closes, returning bullish/bearish signals
- [Token Unlock Calendar](https://www.zero.xyz/c/token-unlock-calendar-69ed7f2e/llms.txt): $0.005/call via x402. Returns the upcoming token unlock schedule ranked by USD value, showing supply shocks across a basket of protocols within a configurable look-ahead window.
- [EVM Wallet Reputation & Risk Scoring](https://www.zero.xyz/c/evm-wallet-reputation-risk-scoring-4111d67d/llms.txt): $0.003/call via x402. Scores an EVM wallet address for risk, reputation, and behavioral signals to support trading safety and compliance decisions
- [Tokenized Stock Premium/Discount Arbitrage Signal](https://www.zero.xyz/c/tokenized-stock-premium-discount-arbitrage-signal-1fcdfa92/llms.txt): $0.005/call via x402. Compares a tokenized stock's live on-chain price (Robinhood Chain) against the real-world equity price and returns the premium/discount percentage plus a buy-onchain/sell-equity directional signal.
- [Robinhood Chain Funding Rate Scanner](https://www.zero.xyz/c/robinhood-chain-funding-rate-scanner-9e0d43cb/llms.txt): $0.05/call via x402. Scans and returns current perpetuals funding rates across major exchanges (Hyperliquid, Lighter, Binance, Bybit) to identify funding arbitrage opportunities
- [Robinhood Chain ERC-20 Address Watcher](https://www.zero.xyz/c/robinhood-chain-erc-20-address-watcher-0852faa1/llms.txt): $0.01/call via x402. Registers a webhook callback URL that gets POSTed whenever a given Robinhood Chain address receives a new ERC-20 transfer, using 60-second polling with persistence.
- [Hyperliquid Perp Markets Overview](https://www.zero.xyz/c/hyperliquid-perp-markets-overview-ebf574ed/llms.txt): $0.005/call via x402. Returns a ranked list of all Hyperliquid perpetual futures markets with mark price, funding APR, open interest, 24h volume, and basis, sortable by volume, OI, or funding.
- [Robinhood Chain ERC-20 Token Transfer History](https://www.zero.xyz/c/robinhood-chain-erc-20-token-transfer-history-19581a8c/llms.txt): $0.005/call via x402. Retrieves the full ERC-20 token transfer history for a given wallet address on Robinhood Chain, including token, amount, counterparties, method, and timestamps.
- [x402 Slippage Recommendation API](https://www.zero.xyz/c/x402-slippage-recommendation-api-cdffd491/llms.txt): $0.005/call via x402. Returns a recommended maximum slippage tolerance for a planned token swap, based on live price impact analysis plus a safety buffer, with a quality rating.
- [Hyperliquid Perpetual Funding Rate Lookup](https://www.zero.xyz/c/hyperliquid-perpetual-funding-rate-lookup-17cea91c/llms.txt): $0.005/call via x402. Returns current and annualized funding rates, mark/oracle prices, open interest, 24h volume, premium, and cross-venue funding comparison (Hyperliquid, Binance, Bybit) for a given perpetual futures coin.
- [Snapshot Governance Proposals Catalyst Feed](https://www.zero.xyz/c/snapshot-governance-proposals-catalyst-feed-c06e5e83/llms.txt): $0.005/call via x402. Fetches active or recent on-chain governance proposals from Snapshot, ranked by voting power, with title, space, votes, and end time — surfacing catalysts that may move token prices.
- [EVM Address Entity Labeling](https://www.zero.xyz/c/evm-address-entity-labeling-cfbc0db7/llms.txt): $0.05/call via x402. Classifies an EVM address as EOA, proxy contract, known protocol, or scam — returning its name and public tags.
- [Aave v3 Position Health Check](https://www.zero.xyz/c/aave-v3-position-health-check-db62d355/llms.txt): $0.05/call via x402. Returns Aave v3 lending position health for a wallet: health factor, collateral, debt, liquidation buffer, and a risk verdict
- [x402 Compliance Risk Score — EVM Address](https://www.zero.xyz/c/x402-compliance-risk-score-evm-address-798714ec/llms.txt): $0.05/call via x402. Returns a 0–100 risk score for an EVM address, including OFAC sanctions status, exposure to sanctioned addresses, contract verification, and behavioral flags.
- [Perp-vs-Spot Basis Calculator (Hyperliquid)](https://www.zero.xyz/c/perp-vs-spot-basis-calculator-hyperliquid-d67a3fed/llms.txt): $0.005/call via x402. Returns the perpetual-vs-spot basis for a given coin, including mark price, spot oracle price, basis percentage, annualized carry, and a contango/backwardation signal for basis-trade analysis.
- [Robinhood Chain Oracle Deviation Monitor](https://www.zero.xyz/c/robinhood-chain-oracle-deviation-monitor-3fe1ed89/llms.txt): $0.05/call via x402. Returns the current deviation between a tokenized stock/ETF's on-chain oracle price and its real equity market price on Robinhood Chain
- [x402 Gas Price Oracle — Multi-Chain Live Gas & Swap Cost](https://www.zero.xyz/c/x402-gas-price-oracle-multi-chain-live-gas-swap-cost-9e708ac1/llms.txt): $0.005/call via x402. Returns live gas prices and estimated USD swap costs across major EVM chains (Base, Ethereum, Arbitrum, Optimism, Polygon, BSC), optionally filtered by chain.
- [Morpho Blue Liquidatable Positions Scanner](https://www.zero.xyz/c/morpho-blue-liquidatable-positions-scanner-f2052024/llms.txt): $0.05/call via x402. Returns live at-risk borrower positions on Morpho Blue (health factor < 1) that are eligible for liquidation, including borrower address, market details, debt and collateral in USD.
- [Robinhood Chain eth_call – Contract View Function Query](https://www.zero.xyz/c/robinhood-chain-eth-call-contract-view-function-query-b7bb0761/llms.txt): $0.005/call via x402. Executes a read-only eth_call against any contract view function on Robinhood Chain, returning the result without submitting a transaction.
- [OFAC Sanctions Address Screener](https://www.zero.xyz/c/ofac-sanctions-address-screener-38c130dc/llms.txt): $0.05/call via x402. Checks whether an EVM wallet address appears on the US OFAC sanctioned-address list before a transaction is executed.
- [Transaction Simulation (Dry-Run Before Signing)](https://www.zero.xyz/c/transaction-simulation-dry-run-before-signing-b3edeadb/llms.txt): $0.05/call via x402. Simulates an EVM transaction to predict whether it will succeed or revert, returning the revert reason, return data, and decoded action — without spending gas.
- [Robinhood Chain Tokenized Stock Dislocation Monitor](https://www.zero.xyz/c/robinhood-chain-tokenized-stock-dislocation-monitor-7d618552/llms.txt): $0.05/call via x402. Detects price dislocation between Robinhood Chain tokenized-stock tokens and their real underlying equity, returning whether the token trades at a premium or discount beyond a configurable threshold.
- [Solana Token Rug Check Safety Scanner](https://www.zero.xyz/c/solana-token-rug-check-safety-scanner-6a940cf8/llms.txt): $0.05/call via x402. Runs a rug-pull and safety audit on a Solana token by mint address, returning risk flags and safety scores.
- [Implied Volatility Term Structure for Crypto Options](https://www.zero.xyz/c/implied-volatility-term-structure-for-crypto-options-c9f4c728/llms.txt): $0.005/call via x402. Returns the implied volatility (IV) term structure for BTC, ETH, or SOL options — ATM IV per expiry date and the front-month IV — so users can assess expected market volatility.
- [Base Gas Oracle – Current Gas Price & Transaction Cost Estimator](https://www.zero.xyz/c/base-gas-oracle-current-gas-price-transaction-cost-estimator-a866935d/llms.txt): $0.003/call via x402. Returns the current gas price on Base plus estimated ETH and USD costs for transfer, swap, and mint operations — no input required.
- [Agent/Wallet Reputation Score](https://www.zero.xyz/c/agent-wallet-reputation-score-3f60701f/llms.txt): $0.05/call via x402. Returns a 0-100 on-chain trust score and tier label for a wallet address, based on activity, holdings, counterparty diversity, and sanctions checks
- [Robinhood Chain Address Activity Feed](https://www.zero.xyz/c/robinhood-chain-address-activity-feed-52750751/llms.txt): $0.005/call via x402. Retrieves recent on-chain transactions for a given address on Robinhood Chain, including hash, method, status, counterparties, and value.
- [Polymarket Prediction Market Odds Search](https://www.zero.xyz/c/polymarket-prediction-market-odds-search-142d4304/llms.txt): $0.005/call via x402. Search Polymarket prediction markets by keyword and return crowd-sourced outcome probabilities, trading volume, and end dates for matching events
- [Robinhood Chain Funding Arbitrage Scanner](https://www.zero.xyz/c/robinhood-chain-funding-arbitrage-scanner-8b550176/llms.txt): $0.05/call via x402. Returns the top perpetuals markets ranked by funding rate spread across Hyperliquid, Lighter, Binance, and Bybit to identify funding arbitrage opportunities
- [x402 Sandwich/MEV Risk Scorer for Swaps](https://www.zero.xyz/c/x402-sandwich-mev-risk-scorer-for-swaps-c9312eda/llms.txt): $0.05/call via x402. Scores the MEV/sandwich attack risk for a planned token swap based on price impact and trade size, and returns concrete mitigations like private RPC usage, slippage tightening, and order splitting.
- [x402-services Historical Token Price Lookup](https://www.zero.xyz/c/x402-services-historical-token-price-lookup-2522e5c1/llms.txt): $0.005/call via x402. Returns the price of a cryptocurrency token at a specific past date or timestamp for backtesting, accounting, and audit purposes.
- [Robinhood Chain Top Movers (Gainers/Losers)](https://www.zero.xyz/c/robinhood-chain-top-movers-gainers-losers-2dcebab7/llms.txt): $0.005/call via x402. Returns the top gaining or losing liquid pools on Robinhood Chain over the past 24 hours, ranked by price change, with liquidity and volume data.
- [Deribit Options Live Quote](https://www.zero.xyz/c/deribit-options-live-quote-0f61dcd7/llms.txt): $0.05/call via x402. Fetches a live crypto options quote from Deribit including mark price, implied volatility, open interest, and Greeks for BTC/ETH/SOL options
- [Robinhood Chain Perpetual Funding Rate Lookup](https://www.zero.xyz/c/robinhood-chain-perpetual-funding-rate-lookup-dfc98cf9/llms.txt): $0.05/call via x402. Returns real-time perpetual funding rate data for a tokenized-stock or ETF ticker listed as a Lighter perp on Robinhood Chain
- [Options Max-Pain & Put/Call OI Ratio](https://www.zero.xyz/c/options-max-pain-put-call-oi-ratio-87904c39/llms.txt): $0.005/call via x402. Returns the max-pain strike price and put/call open-interest ratio for a crypto options expiry, indicating where option holders stand to lose the most.
- [x402 Escrow Resolve](https://www.zero.xyz/c/x402-escrow-resolve-a4019753/llms.txt): $0.05/call via x402. Resolves a conditional payment escrow by instructing either release to payee or refund to payer, returning a settlement instruction executable over x402.
- [KyberSwap DEX Aggreg

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