# Services from x402tap.com on Zero

> x402tap.com serves 20 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/x402tap.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402tap.com/health.json

## Services

- [x402 Crypto Market Data](https://www.zero.xyz/c/x402-crypto-market-data-950280a7/llms.txt): $0.002/call via x402. Returns rich market data for one or more cryptocurrencies, including rank, 24h high/low, volume, ATH, and more, billed per call via x402
- [x402 Crypto Price Lookup](https://www.zero.xyz/c/x402-crypto-price-lookup-f454c895/llms.txt): $0.001/call via x402. Returns current price, 24-hour percentage change, and market cap for one or more cryptocurrencies in a chosen quote currency
- [x402 DeFi Chain TVL Ranking](https://www.zero.xyz/c/x402-defi-chain-tvl-ranking-41362ca2/llms.txt): $0.002/call via x402. Returns a ranked list of blockchains ordered by total DeFi value locked (TVL) across all protocols
- [x402 DeFi Protocol TVL](https://www.zero.xyz/c/x402-defi-protocol-tvl-b9e79a31/llms.txt): $0.003/call via x402. Returns a DeFi protocol's current total value locked (TVL) broken down by chain, plus market cap and token symbol, using the DefiLlama protocol slug as input.
- [x402 ENS Resolver](https://www.zero.xyz/c/x402-ens-resolver-5e44ade1/llms.txt): $0.002/call via x402. Resolve an ENS name (e.g. vitalik.eth) to its EVM address, or reverse-resolve an EVM address to its primary ENS name
- [x402 Gas Price Oracle](https://www.zero.xyz/c/x402-gas-price-oracle-5ef196d5/llms.txt): $0.001/call via x402. Returns current gas price and EIP-1559 fee estimates (base fee, priority fee) for major EVM chains including Base, Ethereum, Polygon, Arbitrum, and Optimism
- [x402 Kalshi Market Detail](https://www.zero.xyz/c/x402-kalshi-market-detail-6036e35b/llms.txt): $0.002/call via x402. Returns full detail for a single Kalshi prediction market by ticker, including yes/no prices, volume, open/close times, status, and result
- [x402 Kalshi Markets](https://www.zero.xyz/c/x402-kalshi-markets-5d72a10b/llms.txt): $0.003/call via x402. Search or list open Kalshi regulated US prediction markets by keyword or browse the most recent active contracts
- [x402 Multi-Chain EVM RPC Proxy](https://www.zero.xyz/c/x402-multi-chain-evm-rpc-proxy-226728f2/llms.txt): $0.003/call via x402. Executes read-only JSON-RPC calls (eth_call, eth_getBalance, eth_getTransactionReceipt, etc.) against major EVM chains via a pay-per-call proxy
- [x402 Polymarket Market Detail](https://www.zero.xyz/c/x402-polymarket-market-detail-0dfcfc52/llms.txt): $0.002/call via x402. Returns full detail (prices, volume, liquidity, resolution metadata) for a single Polymarket prediction market identified by its slug
- [x402 Polymarket Markets](https://www.zero.xyz/c/x402-polymarket-markets-159edd9c/llms.txt): $0.003/call via x402. Search or list active Polymarket prediction markets, ranked by 24-hour trading volume
- [x402 Wallet Balance Lookup](https://www.zero.xyz/c/x402-wallet-balance-lookup-b193239e/llms.txt): $0.002/call via x402. Returns native token (ETH/MATIC/etc.) and optional ERC-20 token balances for a wallet address on major EVM chains
- [x402 Weather API](https://www.zero.xyz/c/x402-weather-api-270113c6/llms.txt): $0.001/call via x402. Returns live current weather conditions (temperature, humidity, wind, feels-like) for any city via Open-Meteo
- [x402 Web Search](https://www.zero.xyz/c/x402-web-search-b8138f81/llms.txt): $0.003/call via x402. Real-time web search returning ranked results with title, URL, published date, author, and relevance score for a query, powered by Exa
- [x402 Crypto Trending](https://www.zero.xyz/c/x402-crypto-trending-86fbb0fe/llms.txt): $0.001/call via x402. Returns the top trending cryptocurrencies ranked by current search interest, including price, market cap, volume, and 24h change
- [x402 Prediction Market Divergence](https://www.zero.xyz/c/x402-prediction-market-divergence-27f37e76/llms.txt): $0.005/call via x402. Finds prediction-market questions where Polymarket and Kalshi show meaningfully different implied probabilities, surfacing cross-platform arbitrage signals.
- [x402 Trend Insights](https://www.zero.xyz/c/x402-trend-insights-87cf3ad8/llms.txt): $0.001/call via x402. Returns trend score, momentum, and related trends for a given topic, with a premium tier for full breakdown
- [x402 Text Generator](https://www.zero.xyz/c/x402-text-generator-5bc1749c/llms.txt): $0.05/call via x402. Generates AI-powered text insights from a prompt, billed by output length up to $0.05 per request via the x402 micropayment protocol
- [x402 Heartbeat (Ping)](https://www.zero.xyz/c/x402-heartbeat-ping-aef9cf93/llms.txt): $0.001/call via x402. Returns a simple timestamped pong response to confirm the x402tap API gateway is alive, billed via a micro-payment channel.
- [x402 Protected Content](https://www.zero.xyz/c/x402-protected-content-d48aa6d4/llms.txt): $0.001/call via x402. Returns a payment-gated HTML message confirming access to premium protected content after micropayment verification

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)